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    <us-gaap:SignificantAccountingPoliciesTextBlock contextRef="c-1" id="f-316">SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Basis of Presentation&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt; - Our accompanying unaudited consolidated financial statements have been prepared pursuant to the rules and regulations of the SEC. These statements also have been prepared in accordance with GAAP and reflect all adjustments that, in our opinion, are necessary for a fair statement of the results for the interim periods presented. All such adjustments are of a normal recurring nature. The 2025 year-end consolidated balance sheet data was derived from audited consolidated financial statements but does not include all disclosures required by GAAP. These unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and footnotes in our Annual Report. Our significant accounting policies are described in Note 1 of our Notes to Consolidated Financial Statements in our Annual Report. The preparation of these financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts and disclosures in the financial statements. Although management believes these estimates are reasonable, actual results could differ materially from these estimates. Due to the seasonal nature of our business, the results of operations for the three months ended March&#160;31, 2026, are not necessarily indicative of the results that may be expected for a 12-month period.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Organization and Nature of Operations&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;&#160;-&#160;We provide natural gas distribution services to approximately 2.3&#160;million customers in Oklahoma, Kansas, and Texas through our three divisions, Oklahoma Natural Gas, Kansas Gas Service, and Texas Gas Service, respectively. We primarily serve residential, commercial, and transportation customers in all three states. &lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Segments&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt; - We operate in one reportable business segment: regulated public utilities that deliver natural gas primarily to residential, commercial, and transportation customers. Our CODM assesses our reportable segment&#x2019;s financial performance by net income and other measures. We define reportable business segments as components of an organization for which discrete financial information is available and operating results are evaluated on a regular basis by the CODM in order to assess performance and allocate resources. Our CODM is our Chief Executive Officer. Characteristics relied upon in making the determination of one reportable segment for our organization include the similar nature of services we provide, the functional alignment of our organizational structure, and the reports that are regularly reviewed by the CODM for the purpose of assessing performance and allocating resources. Our management is functionally aligned and centralized, with performance evaluated based upon results of the entire distribution business. Capital allocation decisions are driven by asset integrity management, operating efficiency, growth opportunities, and government-requested pipeline relocations, not geographic location or regulatory jurisdiction.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Our accounting policies are the same as those described in Note 1 of the Notes to Consolidated Financial Statements in our Annual Report. For the three months ended March&#160;31, 2026 and 2025, we had no single external customer from which we received 10 percent or more of our gross revenues. &lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Property, Plant and Equipment and Asset Removal Costs -&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt; Accounts payable for construction work in progress and asset removal costs decreased by approximately $6.2&#160;million and $12.6&#160;million for the three months ended March&#160;31, 2026 and 2025, respectively. Invoices for capital expenditures or asset removal costs are included in our consolidated statements of cash flows when paid.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Accounts Receivable, Net&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt; - Accounts receivable represent valid claims against nonaffiliated customers for natural gas sold or services rendered. We assess the creditworthiness of our customers. Those customers who do not meet minimum standards may be required to provide security, including deposits and other forms of collateral, when appropriate and allowed by our tariffs. With approximately 2.3&#160;million customers across three states, we are not exposed materially to a concentration of credit risk. We maintain an allowance for doubtful accounts based upon factors surrounding the credit risk of customers, historical trends, consideration of the current environment, and other information. We recover natural gas costs related to accounts written off when they are deemed uncollectible through the purchased-gas cost adjustment mechanisms in each of our jurisdictions. At March&#160;31, 2026 and December 31, 2025, our allowance for doubtful accounts was $14.6&#160;million and $12.7&#160;million, respectively.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Recently Issued Accounting Standards Update&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;&#160;- In September 2025, the FASB issued ASU-2025-06, "Intangibles&#x2014;Goodwill and Other&#x2014;Internal-Use Software (Subtopic 350-40)." The amendments in this standard address requests from stakeholders to better align the guidance for capitalization of internal-use software costs with how software is developed. This ASU removes all references to the software developmental stages so that the guidance is neutral to different software development methods. The amendments in this update are effective for all entities for annual reporting periods beginning after &lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;December 15, 2027, and interim reporting periods within those annual reporting periods. Early adoption is permitted. We are currently assessing the timing and impacts of adopting this standard.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;In November 2024, the FASB issued ASU-2024-03, &#x201c;Disaggregation of Income Statement Expenses (Subtopic 220-40).&#x201d; The amendments in this standard address requests from investors for more detailed information about the types of expenses commonly presented in income statements and will require a footnote disclosure to disaggregate, in a tabular presentation, each relevant expense category on the face of the income statement that includes any of the following natural expenses: purchases of inventory, employee compensation, depreciation, intangible asset amortization, and depreciation, depletion, and amortization recognized as part of oil- and gas-producing activities or other types of depletion expenses. The amendments in this update are effective for annual periods beginning after December 15, 2026 and interim periods within annual periods beginning after December 15, 2027. Early adoption is permitted. We are currently assessing the timing and impacts of adopting this standard.&lt;/span&gt;&lt;/div&gt;</us-gaap:SignificantAccountingPoliciesTextBlock>
    <us-gaap:BasisOfAccountingPolicyPolicyTextBlock contextRef="c-1" id="f-317">&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Basis of Presentation&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt; - Our accompanying unaudited consolidated financial statements have been prepared pursuant to the rules and regulations of the SEC. These statements also have been prepared in accordance with GAAP and reflect all adjustments that, in our opinion, are necessary for a fair statement of the results for the interim periods presented. All such adjustments are of a normal recurring nature. The 2025 year-end consolidated balance sheet data was derived from audited consolidated financial statements but does not include all disclosures required by GAAP. These unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and footnotes in our Annual Report. Our significant accounting policies are described in Note 1 of our Notes to Consolidated Financial Statements in our Annual Report. The preparation of these financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts and disclosures in the financial statements. Although management believes these estimates are reasonable, actual results could differ materially from these estimates. Due to the seasonal nature of our business, the results of operations for the three months ended March&#160;31, 2026, are not necessarily indicative of the results that may be expected for a 12-month period.&lt;/span&gt;&lt;/div&gt;</us-gaap:BasisOfAccountingPolicyPolicyTextBlock>
    <us-gaap:OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock contextRef="c-1" id="f-318">&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Organization and Nature of Operations&lt;/span&gt;&#160;-&#160;We provide natural gas distribution services to approximately 2.3&#160;million customers in Oklahoma, Kansas, and Texas through our three divisions, Oklahoma Natural Gas, Kansas Gas Service, and Texas Gas Service, respectively. We primarily serve residential, commercial, and transportation customers in all three states.</us-gaap:OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock>
    <ogs:NumberOfNaturalGasDistributionServicesCustomers
      contextRef="c-5"
      decimals="0"
      id="f-319"
      unitRef="customers">2300000</ogs:NumberOfNaturalGasDistributionServicesCustomers>
    <us-gaap:SegmentReportingPolicyPolicyTextBlock contextRef="c-1" id="f-320">&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Segments&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt; - We operate in one reportable business segment: regulated public utilities that deliver natural gas primarily to residential, commercial, and transportation customers. Our CODM assesses our reportable segment&#x2019;s financial performance by net income and other measures. We define reportable business segments as components of an organization for which discrete financial information is available and operating results are evaluated on a regular basis by the CODM in order to assess performance and allocate resources. Our CODM is our Chief Executive Officer. Characteristics relied upon in making the determination of one reportable segment for our organization include the similar nature of services we provide, the functional alignment of our organizational structure, and the reports that are regularly reviewed by the CODM for the purpose of assessing performance and allocating resources. Our management is functionally aligned and centralized, with performance evaluated based upon results of the entire distribution business. Capital allocation decisions are driven by asset integrity management, operating efficiency, growth opportunities, and government-requested pipeline relocations, not geographic location or regulatory jurisdiction.&lt;/span&gt;&lt;/div&gt;Our accounting policies are the same as those described in Note 1 of the Notes to Consolidated Financial Statements in our Annual Report. For the three months ended March&#160;31, 2026 and 2025, we had no single external customer from which we received 10 percent or more of our gross revenues.</us-gaap:SegmentReportingPolicyPolicyTextBlock>
    <us-gaap:SegmentReportingDisclosureOfMajorCustomers contextRef="c-1" id="f-321">no</us-gaap:SegmentReportingDisclosureOfMajorCustomers>
    <us-gaap:SegmentReportingDisclosureOfMajorCustomers contextRef="c-3" id="f-322">no</us-gaap:SegmentReportingDisclosureOfMajorCustomers>
    <us-gaap:PropertyPlantAndEquipmentPolicyTextBlock contextRef="c-1" id="f-323">&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Property, Plant and Equipment and Asset Removal Costs -&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt; Accounts payable for construction work in progress and asset removal costs decreased by approximately $6.2&#160;million and $12.6&#160;million for the three months ended March&#160;31, 2026 and 2025, respectively. Invoices for capital expenditures or asset removal costs are included in our consolidated statements of cash flows when paid.&lt;/span&gt;&lt;/div&gt;</us-gaap:PropertyPlantAndEquipmentPolicyTextBlock>
    <us-gaap:CapitalExpendituresIncurredButNotYetPaid contextRef="c-1" decimals="-3" id="f-324" unitRef="usd">6200000</us-gaap:CapitalExpendituresIncurredButNotYetPaid>
    <us-gaap:CapitalExpendituresIncurredButNotYetPaid contextRef="c-3" decimals="-3" id="f-325" unitRef="usd">12600000</us-gaap:CapitalExpendituresIncurredButNotYetPaid>
    <us-gaap:TradeAndOtherAccountsReceivablePolicy contextRef="c-1" id="f-326">&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Accounts Receivable, Net&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt; - Accounts receivable represent valid claims against nonaffiliated customers for natural gas sold or services rendered. We assess the creditworthiness of our customers. Those customers who do not meet minimum standards may be required to provide security, including deposits and other forms of collateral, when appropriate and allowed by our tariffs. With approximately 2.3&#160;million customers across three states, we are not exposed materially to a concentration of credit risk. We maintain an allowance for doubtful accounts based upon factors surrounding the credit risk of customers, historical trends, consideration of the current environment, and other information. We recover natural gas costs related to accounts written off when they are deemed uncollectible through the purchased-gas cost adjustment mechanisms in each of our jurisdictions. At March&#160;31, 2026 and December 31, 2025, our allowance for doubtful accounts was $14.6&#160;million and $12.7&#160;million, respectively.&lt;/span&gt;&lt;/div&gt;</us-gaap:TradeAndOtherAccountsReceivablePolicy>
    <ogs:NumberOfNaturalGasDistributionServicesCustomers
      contextRef="c-5"
      decimals="0"
      id="f-327"
      unitRef="customers">2300000</ogs:NumberOfNaturalGasDistributionServicesCustomers>
    <us-gaap:AllowanceForDoubtfulAccountsPremiumsAndOtherReceivables contextRef="c-5" decimals="-3" id="f-328" unitRef="usd">14600000</us-gaap:AllowanceForDoubtfulAccountsPremiumsAndOtherReceivables>
    <us-gaap:AllowanceForDoubtfulAccountsPremiumsAndOtherReceivables contextRef="c-6" decimals="-3" id="f-329" unitRef="usd">12700000</us-gaap:AllowanceForDoubtfulAccountsPremiumsAndOtherReceivables>
    <us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock contextRef="c-1" id="f-330">&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Recently Issued Accounting Standards Update&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;&#160;- In September 2025, the FASB issued ASU-2025-06, "Intangibles&#x2014;Goodwill and Other&#x2014;Internal-Use Software (Subtopic 350-40)." The amendments in this standard address requests from stakeholders to better align the guidance for capitalization of internal-use software costs with how software is developed. This ASU removes all references to the software developmental stages so that the guidance is neutral to different software development methods. The amendments in this update are effective for all entities for annual reporting periods beginning after &lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;December 15, 2027, and interim reporting periods within those annual reporting periods. Early adoption is permitted. We are currently assessing the timing and impacts of adopting this standard.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;In November 2024, the FASB issued ASU-2024-03, &#x201c;Disaggregation of Income Statement Expenses (Subtopic 220-40).&#x201d; The amendments in this standard address requests from investors for more detailed information about the types of expenses commonly presented in income statements and will require a footnote disclosure to disaggregate, in a tabular presentation, each relevant expense category on the face of the income statement that includes any of the following natural expenses: purchases of inventory, employee compensation, depreciation, intangible asset amortization, and depreciation, depletion, and amortization recognized as part of oil- and gas-producing activities or other types of depletion expenses. The amendments in this update are effective for annual periods beginning after December 15, 2026 and interim periods within annual periods beginning after December 15, 2027. Early adoption is permitted. We are currently assessing the timing and impacts of adopting this standard.&lt;/span&gt;&lt;/div&gt;</us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock>
    <us-gaap:RevenueFromContractWithCustomerTextBlock contextRef="c-1" id="f-331">REVENUE&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following table sets forth our revenues disaggregated by source for the periods indicated:&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center"&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:72.438%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.530%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.767%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Three Months Ended&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;March 31,&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2026&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2025&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;(Thousands of dollars)&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Natural gas sales to customers&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;758,368&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;875,248&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Transportation revenues&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;39,803&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;43,748&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Securitization customer charges (Note 14)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;10,977&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;11,637&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Miscellaneous revenues&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;6,575&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;6,624&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total revenues from contracts with customers&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;815,723&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;937,257&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Other revenues - natural gas sales related&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;11,802&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(4,824)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Other revenues &lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;4,186&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;2,757&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total other revenues&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;15,988&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(2,067)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total revenues&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;831,711&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;935,190&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;Accrued unbilled natural gas sales revenues at March&#160;31, 2026 and December&#160;31, 2025, were $121.0 million and $216.4&#160;million, respectively, and are included in accounts receivable on our consolidated balance sheets.</us-gaap:RevenueFromContractWithCustomerTextBlock>
    <us-gaap:ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock contextRef="c-1" id="f-332">&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following table sets forth our revenues disaggregated by source for the periods indicated:&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center"&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:72.438%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.530%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.767%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Three Months Ended&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;March 31,&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2026&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2025&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;(Thousands of dollars)&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Natural gas sales to customers&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;758,368&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;875,248&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Transportation revenues&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;39,803&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;43,748&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Securitization customer charges (Note 14)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;10,977&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;11,637&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Miscellaneous revenues&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;6,575&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;6,624&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total revenues from contracts with customers&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;815,723&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;937,257&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Other revenues - natural gas sales related&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;11,802&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(4,824)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Other revenues &lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;4,186&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;2,757&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total other revenues&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;15,988&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(2,067)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total revenues&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;831,711&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;935,190&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock>
    <dei:DocumentFiscalYearFocus contextRef="c-1" id="f-333">2026</dei:DocumentFiscalYearFocus>
    <us-gaap:RegulatedOperatingRevenueGas contextRef="c-32" decimals="-3" id="f-334" unitRef="usd">758368000</us-gaap:RegulatedOperatingRevenueGas>
    <us-gaap:RegulatedOperatingRevenueGas contextRef="c-33" decimals="-3" id="f-335" unitRef="usd">875248000</us-gaap:RegulatedOperatingRevenueGas>
    <us-gaap:RegulatedOperatingRevenueGas contextRef="c-34" decimals="-3" id="f-336" unitRef="usd">39803000</us-gaap:RegulatedOperatingRevenueGas>
    <us-gaap:RegulatedOperatingRevenueGas contextRef="c-35" decimals="-3" id="f-337" unitRef="usd">43748000</us-gaap:RegulatedOperatingRevenueGas>
    <us-gaap:RegulatedOperatingRevenueGas contextRef="c-36" decimals="-3" id="f-338" unitRef="usd">10977000</us-gaap:RegulatedOperatingRevenueGas>
    <us-gaap:RegulatedOperatingRevenueGas contextRef="c-37" decimals="-3" id="f-339" unitRef="usd">11637000</us-gaap:RegulatedOperatingRevenueGas>
    <us-gaap:RegulatedOperatingRevenueGas contextRef="c-38" decimals="-3" id="f-340" unitRef="usd">6575000</us-gaap:RegulatedOperatingRevenueGas>
    <us-gaap:RegulatedOperatingRevenueGas contextRef="c-39" decimals="-3" id="f-341" unitRef="usd">6624000</us-gaap:RegulatedOperatingRevenueGas>
    <us-gaap:RegulatedOperatingRevenueGas contextRef="c-1" decimals="-3" id="f-342" unitRef="usd">815723000</us-gaap:RegulatedOperatingRevenueGas>
    <us-gaap:RegulatedOperatingRevenueGas contextRef="c-3" decimals="-3" id="f-343" unitRef="usd">937257000</us-gaap:RegulatedOperatingRevenueGas>
    <us-gaap:RegulatedOperatingRevenueOther contextRef="c-40" decimals="-3" id="f-344" unitRef="usd">11802000</us-gaap:RegulatedOperatingRevenueOther>
    <us-gaap:RegulatedOperatingRevenueOther contextRef="c-41" decimals="-3" id="f-345" unitRef="usd">-4824000</us-gaap:RegulatedOperatingRevenueOther>
    <us-gaap:RegulatedOperatingRevenueOther contextRef="c-42" decimals="-3" id="f-346" unitRef="usd">4186000</us-gaap:RegulatedOperatingRevenueOther>
    <us-gaap:RegulatedOperatingRevenueOther contextRef="c-43" decimals="-3" id="f-347" unitRef="usd">2757000</us-gaap:RegulatedOperatingRevenueOther>
    <us-gaap:RegulatedOperatingRevenueOther contextRef="c-1" decimals="-3" id="f-348" unitRef="usd">15988000</us-gaap:RegulatedOperatingRevenueOther>
    <us-gaap:RegulatedOperatingRevenueOther contextRef="c-3" decimals="-3" id="f-349" unitRef="usd">-2067000</us-gaap:RegulatedOperatingRevenueOther>
    <us-gaap:RegulatedOperatingRevenue contextRef="c-1" decimals="-3" id="f-350" unitRef="usd">831711000</us-gaap:RegulatedOperatingRevenue>
    <us-gaap:RegulatedOperatingRevenue contextRef="c-3" decimals="-3" id="f-351" unitRef="usd">935190000</us-gaap:RegulatedOperatingRevenue>
    <us-gaap:UnbilledReceivablesCurrent contextRef="c-5" decimals="-5" id="f-352" unitRef="usd">121000000.0</us-gaap:UnbilledReceivablesCurrent>
    <us-gaap:UnbilledReceivablesCurrent contextRef="c-6" decimals="-3" id="f-353" unitRef="usd">216400000</us-gaap:UnbilledReceivablesCurrent>
    <us-gaap:ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock contextRef="c-1" id="f-354">REGULATORY ASSETS AND LIABILITIES&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The tables below present a summary of regulatory assets and liabilities, net of amortization, for the periods indicated:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:60.157%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:10.449%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.530%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.530%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.769%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="15" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;March 31, 2026&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Current&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Noncurrent&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Total&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="15" style="border-top:2pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;Thousands of dollars&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Under-recovered purchased-gas costs&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2,261&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2,261&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Pension and postemployment benefit costs, net&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;10,187&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;217,257&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;227,444&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Reacquired debt costs&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;723&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;1,085&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;1,808&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;MGP remediation costs&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;1,000&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;29,592&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;30,592&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;WNA&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;25,165&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;25,165&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Customer credit deferrals&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;14,779&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;1,081&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;15,860&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Other, net&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;7,372&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;3,033&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;10,405&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total regulatory assets&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;61,487&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;252,048&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;313,535&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Income tax rate changes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(432,690)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(432,690)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Over-recovered purchased-gas costs&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(18,378)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(18,378)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Ad-valorem tax&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(1,553)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(1,553)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Other&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(1,707)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(8,351)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(10,058)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total regulatory liabilities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(21,638)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(441,041)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(462,679)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Net regulatory assets and liabilities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;39,849&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(188,993)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(149,144)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center"&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:58.841%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.530%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.530%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.769%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="15" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;December 31, 2025&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Current&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Noncurrent&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Total&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="15" style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;Thousands of dollars&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Under-recovered purchased-gas costs&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;10,692&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;10,692&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Pension and postemployment benefit costs, net&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;10,929&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;221,809&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;232,738&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Reacquired debt costs&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;723&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;1,266&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;1,989&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;MGP remediation costs&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;1,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;29,105&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;30,105&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;WNA&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;19,175&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;19,175&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Customer credit deferrals&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;2,953&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;1,091&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;4,044&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Other, net&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;4,032&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;2,954&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;6,986&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total regulatory assets&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;49,504&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;256,225&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;305,729&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Income tax rate changes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(444,986)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(444,986)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Over-recovered purchased-gas costs&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(56,876)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(56,876)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Ad-valorem tax&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(165)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(165)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Other&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(236)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(6,634)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(6,870)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total regulatory liabilities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(57,277)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(451,620)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(508,897)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Net regulatory assets and liabilities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(7,773)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(195,395)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(203,168)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Regulatory assets in our consolidated balance sheets, as authorized by various regulatory authorities, are probable of recovery. Base rates and certain riders are designed to provide a recovery of costs during the period such rates are in effect, but do not generally provide for a return on investment for amounts we have deferred as regulatory assets. All of our regulatory assets are subject to review by the respective regulatory authorities during future regulatory proceedings.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Other regulatory assets and liabilities&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt; - Purchased-gas costs represent the natural gas costs that have been over- or under-recovered from customers through the purchased-gas cost adjustment mechanisms, and includes natural gas utilized in our operations and premiums paid and any cash settlements received from our purchased natural gas call options or swap agreements.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The OCC, KCC, and regulatory authorities in Texas have approved the recovery of pension costs and other postemployment benefits costs through rates for Oklahoma Natural Gas, Kansas Gas Service, and Texas Gas Service, respectively. The costs recovered through rates are based on the net periodic benefit cost for defined benefit pension and other postemployment costs. Differences, if any, between the net periodic benefit cost (credit), net of deferrals, and the amount recovered through rates are reflected in earnings. We historically have recovered defined benefit pension and other postemployment benefit costs through &lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;rates. We believe it is probable that regulators will continue to include the net periodic pension and other postemployment benefit costs in our cost of service.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;We amortize reacquired debt costs in accordance with the accounting guidelines prescribed by the OCC and the KCC.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;See Note 12 for additional information regarding our regulatory assets for MGP remediation costs.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Ad-valorem tax represents the difference in Kansas Gas Service&#x2019;s taxes incurred each year above or below the amount approved in base rates. This difference is deferred as a regulatory asset or liability for a 12-month period. Kansas Gas Service then applies an adjustment to customers&#x2019; bills to refund the over-collected revenue or bill the under-collected revenue over the subsequent 12 months.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Weather normalization represents revenue over- or under-recovered through the WNA rider in Kansas. This amount is deferred as a regulatory asset or liability for a 12-month period. Kansas Gas Service then applies an adjustment to customers&#x2019; bills for 12 months to refund the over-collected revenue or bill the under-collected revenue.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The customer credit deferrals and the noncurrent regulatory liability for income tax rate changes represent deferral of the effects of enacted federal and state income tax rate changes on our ADIT and the effects of these changes on our rates.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Recovery through rates resulted in amortization of regulatory assets that was immaterial for the three months ended March&#160;31, 2026, and approximately $6.0 million for the three months ended March&#160;31, 2025.&lt;/span&gt;&lt;/div&gt;</us-gaap:ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock>
    <ogs:SCHEDULEOFREGULATEDASSETSANDLIABILITIESTableTextBlock contextRef="c-1" id="f-355">&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The tables below present a summary of regulatory assets and liabilities, net of amortization, for the periods indicated:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:60.157%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:10.449%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.530%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.530%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.769%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="15" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;March 31, 2026&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Current&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Noncurrent&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Total&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="15" style="border-top:2pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;Thousands of dollars&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Under-recovered purchased-gas costs&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2,261&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2,261&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Pension and postemployment benefit costs, net&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;10,187&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;217,257&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;227,444&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Reacquired debt costs&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;723&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;1,085&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;1,808&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;MGP remediation costs&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;1,000&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;29,592&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;30,592&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;WNA&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;25,165&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;25,165&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Customer credit deferrals&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;14,779&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;1,081&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;15,860&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Other, net&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;7,372&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;3,033&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;10,405&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total regulatory assets&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;61,487&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;252,048&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;313,535&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Income tax rate changes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(432,690)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(432,690)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Over-recovered purchased-gas costs&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(18,378)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(18,378)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Ad-valorem tax&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(1,553)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(1,553)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Other&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(1,707)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(8,351)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(10,058)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total regulatory liabilities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(21,638)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(441,041)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(462,679)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Net regulatory assets and liabilities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;39,849&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(188,993)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(149,144)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center"&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:58.841%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.530%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.530%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.769%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="15" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;December 31, 2025&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Current&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Noncurrent&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Total&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="15" style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;Thousands of dollars&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Under-recovered purchased-gas costs&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;10,692&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;10,692&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Pension and postemployment benefit costs, net&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;10,929&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;221,809&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;232,738&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Reacquired debt costs&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;723&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;1,266&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;1,989&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;MGP remediation costs&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;1,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;29,105&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;30,105&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;WNA&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;19,175&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;19,175&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Customer credit deferrals&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;2,953&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;1,091&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;4,044&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Other, net&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;4,032&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;2,954&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;6,986&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total regulatory assets&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;49,504&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;256,225&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;305,729&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Income tax rate changes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(444,986)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(444,986)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Over-recovered purchased-gas costs&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(56,876)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(56,876)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Ad-valorem tax&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(165)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(165)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Other&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(236)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(6,634)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(6,870)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total regulatory liabilities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(57,277)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(451,620)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(508,897)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Net regulatory assets and liabilities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(7,773)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(195,395)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(203,168)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</ogs:SCHEDULEOFREGULATEDASSETSANDLIABILITIESTableTextBlock>
    <us-gaap:RegulatoryAssetsCurrent contextRef="c-44" decimals="-3" id="f-356" unitRef="usd">2261000</us-gaap:RegulatoryAssetsCurrent>
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    <us-gaap:RegulatoryAssets contextRef="c-44" decimals="-3" id="f-358" unitRef="usd">2261000</us-gaap:RegulatoryAssets>
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    <us-gaap:RegulatoryAssetsCurrent contextRef="c-46" decimals="-3" id="f-362" unitRef="usd">723000</us-gaap:RegulatoryAssetsCurrent>
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    <us-gaap:RegulatoryAssets contextRef="c-46" decimals="-3" id="f-364" unitRef="usd">1808000</us-gaap:RegulatoryAssets>
    <us-gaap:RegulatoryAssetsCurrent contextRef="c-47" decimals="-3" id="f-365" unitRef="usd">1000000</us-gaap:RegulatoryAssetsCurrent>
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    <us-gaap:RegulatoryAssetsNoncurrent contextRef="c-48" decimals="-3" id="f-369" unitRef="usd">0</us-gaap:RegulatoryAssetsNoncurrent>
    <us-gaap:RegulatoryAssets contextRef="c-48" decimals="-3" id="f-370" unitRef="usd">25165000</us-gaap:RegulatoryAssets>
    <us-gaap:RegulatoryAssetsCurrent contextRef="c-49" decimals="-3" id="f-371" unitRef="usd">14779000</us-gaap:RegulatoryAssetsCurrent>
    <us-gaap:RegulatoryAssetsNoncurrent contextRef="c-49" decimals="-3" id="f-372" unitRef="usd">1081000</us-gaap:RegulatoryAssetsNoncurrent>
    <us-gaap:RegulatoryAssets contextRef="c-49" decimals="-3" id="f-373" unitRef="usd">15860000</us-gaap:RegulatoryAssets>
    <us-gaap:RegulatoryAssetsCurrent contextRef="c-50" decimals="-3" id="f-374" unitRef="usd">7372000</us-gaap:RegulatoryAssetsCurrent>
    <us-gaap:RegulatoryAssetsNoncurrent contextRef="c-50" decimals="-3" id="f-375" unitRef="usd">3033000</us-gaap:RegulatoryAssetsNoncurrent>
    <us-gaap:RegulatoryAssets contextRef="c-50" decimals="-3" id="f-376" unitRef="usd">10405000</us-gaap:RegulatoryAssets>
    <us-gaap:RegulatoryAssetsCurrent contextRef="c-5" decimals="-3" id="f-377" unitRef="usd">61487000</us-gaap:RegulatoryAssetsCurrent>
    <us-gaap:RegulatoryAssetsNoncurrent contextRef="c-5" decimals="-3" id="f-378" unitRef="usd">252048000</us-gaap:RegulatoryAssetsNoncurrent>
    <us-gaap:RegulatoryAssets contextRef="c-5" decimals="-3" id="f-379" unitRef="usd">313535000</us-gaap:RegulatoryAssets>
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    <us-gaap:RegulatoryLiabilityNoncurrent contextRef="c-51" decimals="-3" id="f-381" unitRef="usd">432690000</us-gaap:RegulatoryLiabilityNoncurrent>
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    <us-gaap:ShortTermDebtTextBlock contextRef="c-1" id="f-442">&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;4.&#160;&#160;&#160;&#160;CREDIT FACILITY AND SHORT-TERM DEBT&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The ONE Gas Credit Agreement provides for a $1.5&#160;billion revolving unsecured credit facility, which includes a $20&#160;million letter of credit subfacility and a $60&#160;million swingline subfacility. Under the terms of the agreement, the Company may, subject to satisfaction of customary conditions and receipt of commitments from new or existing lenders, request an increase in total commitments of up to an additional $750&#160;million. Proceeds from the agreement may be used for working capital, capital expenditures, acquisitions and mergers, the issuance of letters of credit, and other general corporate purposes.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The ONE Gas Credit Agreement contains certain financial, operational, and legal covenants. Among other things, these covenants include maintaining ONE Gas&#x2019; total debt-to-capital ratio, excluding the debt of KGSS-I, of no more than 70 percent at the end of any calendar quarter. At March&#160;31, 2026, our total debt-to-capital ratio, excluding KGSS-I, was 47.1 percent and we were in compliance with all covenants under the ONE Gas Credit Agreement. We may reduce the unutilized portion of the ONE Gas Credit Agreement in whole or in part without premium or penalty. The ONE Gas Credit Agreement contains customary events of default. Upon the occurrence of certain events of default, our obligations under the ONE Gas Credit Agreement may be accelerated and the commitments may be terminated.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;At March&#160;31, 2026, we had approximately $2.4&#160;million in letters of credit issued and no borrowings under the ONE Gas Credit Agreement, with approximately $1.5&#160;billion of remaining credit, which is available to repay our commercial paper borrowings and for other permitted purposes.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Under our commercial paper program, we may issue unsecured commercial paper up to the maximum amount of $1.5&#160;billion to fund short-term borrowing needs. The maturities of the commercial paper vary but may not exceed 270 days from the date of issue. Commercial paper is generally sold at par less a discount representing an interest factor. At March&#160;31, 2026 and December&#160;31, 2025, we had $759.7&#160;million and $737.4&#160;million of commercial paper outstanding with a weighted-average interest rate of 4.14 percent and 3.94 percent, respectively.&lt;/span&gt;&lt;/div&gt;</us-gaap:ShortTermDebtTextBlock>
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    <ogs:CommercialPaperMaximumMaturityTerm contextRef="c-1" id="f-453">P270D</ogs:CommercialPaperMaximumMaturityTerm>
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    <us-gaap:LongTermDebtTextBlock contextRef="c-1" id="f-458">LONG-TERM DEBT&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The table below presents a summary of our long-term debt outstanding for the periods indicated:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:52.262%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.911%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:15.712%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:15.715%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;March 31,&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;December 31,&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Interest Rate&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2026&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2025&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="6" style="border-top:2pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;Thousands of dollars&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Senior Notes due:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 13pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;April 2029&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;5.100%&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;550,000&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;550,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 13pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;May 2030&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2.000%&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;300,000&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;300,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 13pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;September 2032&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;4.250%&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;300,000&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;300,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 13pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;February 2044&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;4.658%&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;600,000&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;600,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 13pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;November 2048&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;4.500%&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;400,000&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;400,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total Senior Notes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2,150,000&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;2,150,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Unsecured Term Loan (a)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;4.480%&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;250,000&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;250,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;KGSS-I Securitized Utility Tariff Bonds&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;5.486%&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;242,496&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;257,852&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Unamortized discounts, net of premiums, on long-term debt (b)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(3,883)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(3,830)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Debt issuance costs (b)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(18,298)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(18,955)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Other&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;8.000%&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;1,207&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;1,211&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total long-term debt, net&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2,621,522&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;2,636,278&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Less: current maturities of KGSS-I securitized utility tariff bonds, net&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;31,404&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;30,566&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Less: current maturities of other long-term debt, net&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;249,798&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;249,674&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Noncurrent portion of long-term debt, net&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2,340,320&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;2,356,038&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:112%"&gt;(a) Bears interest at a variable rate based on Term SOFR, initially set using the 6-month Term SOFR at closing. The interest rate resets at months six and twelve, each based on the prevailing 6-month Term SOFR and the 1-month Term SOFR, respectively.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:120%"&gt;(b) Includes issuance costs and discounts for the KGSS-I Securitized Utility Tariff Bonds of $4.1&#160;million and $4.3&#160;million, at March&#160;31, 2026 and December&#160;31, 2025, respectively.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Senior Notes&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt; - The indenture governing our Senior Notes includes an event of default upon the acceleration of other indebtedness of $100&#160;million or more. Such events of default would entitle the trustee or the holders of 25 percent in aggregate principal amount of the outstanding Senior Notes to declare those Senior Notes immediately due and payable in full.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Depending on the series, we may redeem our Senior Notes at par, plus accrued and unpaid interest to the redemption date, starting one month, three months, or six months before their maturity dates. Prior to these dates, we may redeem these Senior Notes, in whole or in part, at a redemption price equal to the principal amount, plus accrued and unpaid interest and a make-whole premium. The redemption price will never be less than 100 percent of the principal amount of the respective Senior Note plus accrued and unpaid interest to the redemption date. Senior Notes are senior unsecured obligations, ranking equally in right of payment with all of our existing and future unsecured senior indebtedness.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Unsecured Term Loan &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;- In August 2025, we entered into a 13-month unsecured term loan agreement totaling $250&#160;million. The loan bears interest at a variable rate based on Term SOFR, initially set using the 6-month Term SOFR at closing, plus a 90 bps spread as specified in the agreement. The interest rate resets automatically at months six and twelve, each based on the prevailing 6-month Term SOFR plus a spread of 90 bps, and 1-month Term SOFR plus a spread of 90 bps, respectively, until the term loan matures in September 2026. Interest is payable quarterly, and the loan includes customary covenants and default provisions. Proceeds of the term loan will be available for working capital, capital expenditures, acquisitions, mergers, and other general corporate purposes. &lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;On February 11, 2026, the variable interest rate on our unsecured term loan reset for the new six&#x2011;month interest period to 6&#x2011;month Term SOFR of 3.58 percent plus a 90 bps spread, resulting in a 4.48 percent all&#x2011;in interest rate, a decrease from the prior rate of 4.96 percent.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Securitized Utility Tariff Bonds&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt; - The KGSS-I Securitized Utility Tariff Bonds are governed by an indenture between KGSS-I and the indenture trustee. The indenture contains certain covenants that restrict KGSS-I&#x2019;s ability to sell, transfer, convey, exchange, or otherwise dispose of its assets. KGSS-I&#x2019;s assets cannot be used to settle ONE Gas&#x2019; obligations and the holders of the Securitized Utility Tariff Bonds have no recourse against ONE Gas. See Note 14 for additional discussion of the Kansas securitization transaction.&lt;/span&gt;&lt;/div&gt;</us-gaap:LongTermDebtTextBlock>
    <us-gaap:ScheduleOfDebtInstrumentsTextBlock contextRef="c-1" id="f-459">&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The table below presents a summary of our long-term debt outstanding for the periods indicated:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:52.262%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.911%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:15.712%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:15.715%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;March 31,&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;December 31,&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Interest Rate&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2026&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2025&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="6" style="border-top:2pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;Thousands of dollars&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Senior Notes due:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 13pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;April 2029&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;5.100%&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;550,000&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;550,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 13pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;May 2030&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2.000%&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;300,000&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;300,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 13pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;September 2032&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;4.250%&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;300,000&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;300,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 13pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;February 2044&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;4.658%&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;600,000&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;600,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 13pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;November 2048&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;4.500%&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;400,000&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;400,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total Senior Notes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2,150,000&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;2,150,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Unsecured Term Loan (a)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;4.480%&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;250,000&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;250,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;KGSS-I Securitized Utility Tariff Bonds&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;5.486%&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;242,496&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;257,852&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Unamortized discounts, net of premiums, on long-term debt (b)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(3,883)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(3,830)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Debt issuance costs (b)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(18,298)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(18,955)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Other&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;8.000%&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;1,207&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;1,211&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total long-term debt, net&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2,621,522&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;2,636,278&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Less: current maturities of KGSS-I securitized utility tariff bonds, net&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;31,404&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;30,566&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Less: current maturities of other long-term debt, net&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;249,798&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;249,674&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Noncurrent portion of long-term debt, net&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2,340,320&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;2,356,038&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:112%"&gt;(a) Bears interest at a variable rate based on Term SOFR, initially set using the 6-month Term SOFR at closing. The interest rate resets at months six and twelve, each based on the prevailing 6-month Term SOFR and the 1-month Term SOFR, respectively.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:120%"&gt;(b) Includes issuance costs and discounts for the KGSS-I Securitized Utility Tariff Bonds of $4.1&#160;million and $4.3&#160;million, at March&#160;31, 2026 and December&#160;31, 2025, respectively.&lt;/span&gt;&lt;/div&gt;</us-gaap:ScheduleOfDebtInstrumentsTextBlock>
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    <us-gaap:DebtInstrumentInterestRateStatedPercentage
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      unitRef="number">0.02000</us-gaap:DebtInstrumentInterestRateStatedPercentage>
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    <us-gaap:DebtInstrumentCarryingAmount contextRef="c-71" decimals="-3" id="f-469" unitRef="usd">300000000</us-gaap:DebtInstrumentCarryingAmount>
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    <us-gaap:DebtInstrumentCarryingAmount contextRef="c-72" decimals="-3" id="f-471" unitRef="usd">600000000</us-gaap:DebtInstrumentCarryingAmount>
    <us-gaap:DebtInstrumentCarryingAmount contextRef="c-73" decimals="-3" id="f-472" unitRef="usd">600000000</us-gaap:DebtInstrumentCarryingAmount>
    <us-gaap:DebtInstrumentInterestRateStatedPercentage
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      unitRef="number">0.04500</us-gaap:DebtInstrumentInterestRateStatedPercentage>
    <us-gaap:DebtInstrumentCarryingAmount contextRef="c-74" decimals="-3" id="f-474" unitRef="usd">400000000</us-gaap:DebtInstrumentCarryingAmount>
    <us-gaap:DebtInstrumentCarryingAmount contextRef="c-75" decimals="-3" id="f-475" unitRef="usd">400000000</us-gaap:DebtInstrumentCarryingAmount>
    <us-gaap:DebtInstrumentCarryingAmount contextRef="c-76" decimals="-3" id="f-476" unitRef="usd">2150000000</us-gaap:DebtInstrumentCarryingAmount>
    <us-gaap:DebtInstrumentCarryingAmount contextRef="c-77" decimals="-3" id="f-477" unitRef="usd">2150000000</us-gaap:DebtInstrumentCarryingAmount>
    <us-gaap:DebtInstrumentInterestRateStatedPercentage
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      unitRef="number">0.04480</us-gaap:DebtInstrumentInterestRateStatedPercentage>
    <us-gaap:DebtInstrumentCarryingAmount contextRef="c-78" decimals="-3" id="f-479" unitRef="usd">250000000</us-gaap:DebtInstrumentCarryingAmount>
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    <us-gaap:DebtInstrumentCarryingAmount contextRef="c-80" decimals="-3" id="f-482" unitRef="usd">242496000</us-gaap:DebtInstrumentCarryingAmount>
    <us-gaap:DebtInstrumentCarryingAmount contextRef="c-81" decimals="-3" id="f-483" unitRef="usd">257852000</us-gaap:DebtInstrumentCarryingAmount>
    <us-gaap:DebtInstrumentUnamortizedDiscount contextRef="c-5" decimals="-3" id="f-484" unitRef="usd">3883000</us-gaap:DebtInstrumentUnamortizedDiscount>
    <us-gaap:DebtInstrumentUnamortizedDiscount contextRef="c-6" decimals="-3" id="f-485" unitRef="usd">3830000</us-gaap:DebtInstrumentUnamortizedDiscount>
    <us-gaap:DeferredFinanceCostsNet contextRef="c-5" decimals="-3" id="f-486" unitRef="usd">18298000</us-gaap:DeferredFinanceCostsNet>
    <us-gaap:DeferredFinanceCostsNet contextRef="c-6" decimals="-3" id="f-487" unitRef="usd">18955000</us-gaap:DeferredFinanceCostsNet>
    <us-gaap:DebtInstrumentInterestRateStatedPercentage
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    <us-gaap:LongTermDebt contextRef="c-5" decimals="-3" id="f-491" unitRef="usd">2621522000</us-gaap:LongTermDebt>
    <us-gaap:LongTermDebt contextRef="c-6" decimals="-3" id="f-492" unitRef="usd">2636278000</us-gaap:LongTermDebt>
    <us-gaap:LongTermDebtCurrent contextRef="c-80" decimals="-3" id="f-493" unitRef="usd">31404000</us-gaap:LongTermDebtCurrent>
    <us-gaap:LongTermDebtCurrent contextRef="c-81" decimals="-3" id="f-494" unitRef="usd">30566000</us-gaap:LongTermDebtCurrent>
    <us-gaap:LongTermDebtCurrent contextRef="c-5" decimals="-3" id="f-495" unitRef="usd">249798000</us-gaap:LongTermDebtCurrent>
    <us-gaap:LongTermDebtCurrent contextRef="c-6" decimals="-3" id="f-496" unitRef="usd">249674000</us-gaap:LongTermDebtCurrent>
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    <us-gaap:LongTermDebtNoncurrent contextRef="c-6" decimals="-3" id="f-498" unitRef="usd">2356038000</us-gaap:LongTermDebtNoncurrent>
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    <us-gaap:DeferredFinanceCostsNet contextRef="c-85" decimals="-3" id="f-500" unitRef="usd">4300000</us-gaap:DeferredFinanceCostsNet>
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    <us-gaap:DebtInstrumentInterestRateTerms contextRef="c-86" id="f-505">The loan bears interest at a variable rate based on Term SOFR, initially set using the 6-month Term SOFR at closing, plus a 90 bps spread as specified in the agreement. The interest rate resets automatically at months six and twelve, each based on the prevailing 6-month Term SOFR plus a spread of 90 bps, and 1-month Term SOFR plus a spread of 90 bps, respectively, until the term loan matures in September 2026.</us-gaap:DebtInstrumentInterestRateTerms>
    <ogs:DebtInstrumentReferenceRate
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    <us-gaap:DebtInstrumentInterestRateStatedPercentage
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    <us-gaap:StockholdersEquityNoteDisclosureTextBlock contextRef="c-1" id="f-509">&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;At-the-Market Equity Program &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;- In February 2026, we entered into an at-the-market equity distribution agreement under which we may issue and sell shares of our common stock with an aggregate offering price up to $225&#160;million. Sales of common stock are made by means of ordinary brokers&#x2019; transactions on the NYSE and the NYSE Texas, in block transactions or as otherwise agreed to between us and the sales agent. We are under no obligation to offer and sell common stock under the program. At March&#160;31, 2026, we had $204.4&#160;million of equity available for issuance under the program.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:112%"&gt;For the three months ended March 31, 2026, we executed forward sale agreements under our current at-the-market equity program for 237,307 shares of our common stock. Had we fully settled all 506,607 shares sold under our forward sale agreements, as of March 31, 2026, we would have generated net proceeds of approximately $41.5&#160;million.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following table summarizes our outstanding forward sale agreements at March&#160;31, 2026:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:31.648%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:15.128%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:15.128%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:15.128%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:17.468%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Maturity&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Original Shares&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Remaining Shares&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Forward Price&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Net Proceeds Available&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;(Shares)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;(Shares)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;(Per share)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;(Thousands of dollars)&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;At-the-market equity program&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;December 31, 2026&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;237,307&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;237,307&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;86.16&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;20,447&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Equity forward agreements&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;December 31, 2026&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2,500,000&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;269,300&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;78.33&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;21,094&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total forward sale agreements&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2,737,307&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;506,607&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;82.00&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;41,541&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Dividends Declared &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;- In May 2026, we declared a dividend of $0.68 per share ($2.72 per share on an annualized basis) for shareholders of record as of May 18, 2026, payable on June 2, 2026.&lt;/span&gt;&lt;/div&gt;</us-gaap:StockholdersEquityNoteDisclosureTextBlock>
    <ogs:AttheMarketEquityProgramAggregateOfferingPriceLimit contextRef="c-88" decimals="-3" id="f-510" unitRef="usd">225000000</ogs:AttheMarketEquityProgramAggregateOfferingPriceLimit>
    <ogs:EquityAvailableForIssuance contextRef="c-88" decimals="-3" id="f-511" unitRef="usd">204400000</ogs:EquityAvailableForIssuance>
    <ogs:ForwardContractIndexedToAtTheMarketEquitySettlementOriginalNumberOfShares
      contextRef="c-89"
      decimals="INF"
      id="f-512"
      unitRef="shares">237307</ogs:ForwardContractIndexedToAtTheMarketEquitySettlementOriginalNumberOfShares>
    <us-gaap:ForwardContractIndexedToIssuersEquitySettlementAlternativesSharesAtFairValue contextRef="c-5" decimals="0" id="f-513" unitRef="shares">506607</us-gaap:ForwardContractIndexedToIssuersEquitySettlementAlternativesSharesAtFairValue>
    <us-gaap:ForwardContractIndexedToIssuersEquitySettlementAlternativesCashAtFairValue contextRef="c-5" decimals="-5" id="f-514" unitRef="usd">41500000</us-gaap:ForwardContractIndexedToIssuersEquitySettlementAlternativesCashAtFairValue>
    <us-gaap:ScheduleOfForwardContractsIndexedToIssuersEquityTextBlock contextRef="c-1" id="f-515">&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following table summarizes our outstanding forward sale agreements at March&#160;31, 2026:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:31.648%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:15.128%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:15.128%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:15.128%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:17.468%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Maturity&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Original Shares&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Remaining Shares&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Forward Price&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Net Proceeds Available&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;(Shares)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;(Shares)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;(Per share)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;(Thousands of dollars)&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;At-the-market equity program&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;December 31, 2026&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;237,307&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;237,307&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;86.16&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;20,447&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Equity forward agreements&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;December 31, 2026&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2,500,000&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;269,300&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;78.33&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;21,094&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total forward sale agreements&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2,737,307&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;506,607&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;82.00&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;41,541&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfForwardContractsIndexedToIssuersEquityTextBlock>
    <ogs:ForwardContractIndexedToAtTheMarketEquitySettlementOriginalNumberOfShares
      contextRef="c-89"
      decimals="INF"
      id="f-516"
      unitRef="shares">237307</ogs:ForwardContractIndexedToAtTheMarketEquitySettlementOriginalNumberOfShares>
    <ogs:ForwardContractIndexedToAtTheMarketEquitySettlementNumberOfShares contextRef="c-89" decimals="0" id="f-517" unitRef="shares">237307</ogs:ForwardContractIndexedToAtTheMarketEquitySettlementNumberOfShares>
    <ogs:ForwardContractIndexedToIssuersAtTheMarketEquityForwardRatePerShare
      contextRef="c-90"
      decimals="2"
      id="f-518"
      unitRef="usdPerShare">86.16</ogs:ForwardContractIndexedToIssuersAtTheMarketEquityForwardRatePerShare>
    <ogs:ForwardContractIndexedToAtTheMarketEquitySettlementCashAmount contextRef="c-89" decimals="2" id="f-519" unitRef="usd">20447000</ogs:ForwardContractIndexedToAtTheMarketEquitySettlementCashAmount>
    <ogs:ForwardContractIndexedToEquitySettlementOriginalNumberOfShares contextRef="c-91" decimals="0" id="f-520" unitRef="shares">2500000</ogs:ForwardContractIndexedToEquitySettlementOriginalNumberOfShares>
    <us-gaap:ForwardContractIndexedToIssuersEquitySettlementAlternativesSharesAtFairValue contextRef="c-91" decimals="0" id="f-521" unitRef="shares">269300</us-gaap:ForwardContractIndexedToIssuersEquitySettlementAlternativesSharesAtFairValue>
    <us-gaap:ForwardContractIndexedToIssuersEquityForwardRate
      contextRef="c-92"
      decimals="2"
      id="f-522"
      unitRef="usdPerShare">78.33</us-gaap:ForwardContractIndexedToIssuersEquityForwardRate>
    <us-gaap:ForwardContractIndexedToIssuersEquitySettlementAlternativesCashAtFairValue contextRef="c-91" decimals="-3" id="f-523" unitRef="usd">21094000</us-gaap:ForwardContractIndexedToIssuersEquitySettlementAlternativesCashAtFairValue>
    <ogs:ForwardContractIndexedToEquitySettlementOriginalNumberOfShares contextRef="c-5" decimals="0" id="f-524" unitRef="shares">2737307</ogs:ForwardContractIndexedToEquitySettlementOriginalNumberOfShares>
    <us-gaap:ForwardContractIndexedToIssuersEquitySettlementAlternativesSharesAtFairValue contextRef="c-5" decimals="0" id="f-525" unitRef="shares">506607</us-gaap:ForwardContractIndexedToIssuersEquitySettlementAlternativesSharesAtFairValue>
    <us-gaap:ForwardContractIndexedToIssuersEquityForwardRate
      contextRef="c-1"
      decimals="2"
      id="f-526"
      unitRef="usdPerShare">82.00</us-gaap:ForwardContractIndexedToIssuersEquityForwardRate>
    <us-gaap:ForwardContractIndexedToIssuersEquitySettlementAlternativesCashAtFairValue contextRef="c-5" decimals="-3" id="f-527" unitRef="usd">41541000</us-gaap:ForwardContractIndexedToIssuersEquitySettlementAlternativesCashAtFairValue>
    <us-gaap:CommonStockDividendsPerShareDeclared
      contextRef="c-93"
      decimals="2"
      id="f-528"
      unitRef="usdPerShare">0.68</us-gaap:CommonStockDividendsPerShareDeclared>
    <ogs:CommonStockDividendsDeclaredAnnualizedBasis
      contextRef="c-94"
      decimals="2"
      id="f-529"
      unitRef="usdPerShare">2.72</ogs:CommonStockDividendsDeclaredAnnualizedBasis>
    <us-gaap:DividendsPayableDateOfRecordDayMonthAndYear contextRef="c-95" id="f-530">2026-05-18</us-gaap:DividendsPayableDateOfRecordDayMonthAndYear>
    <us-gaap:DividendPayableDateToBePaidDayMonthAndYear contextRef="c-96" id="f-531">2026-06-02</us-gaap:DividendPayableDateToBePaidDayMonthAndYear>
    <us-gaap:ComprehensiveIncomeNoteTextBlock contextRef="c-1" id="f-532">ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following table sets forth the effect of reclassifications from accumulated other comprehensive income (loss) in our consolidated statements of income for the periods indicated:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:55.771%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:8.110%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:9.280%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:22.439%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="6" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Three Months Ended&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Affected Line Item in the &lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Details About Accumulated Other  &lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="6" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;March 31,&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Consolidated Statements&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Comprehensive Income (Loss) Components&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2026&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2025&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;of Income&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="6" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;Thousands of dollars&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt;padding-left:4.5pt;text-indent:-4.5pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Pension and other postemployment benefit plan obligations (a)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Amortization of net gain (loss)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(4,212)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(1,834)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Amortization of unrecognized prior service credit (cost)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(93)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(93)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(4,305)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(1,927)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Regulatory adjustments (b)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;4,305&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;1,927&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Amounts reclassified from accumulated other comprehensive income (loss)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Other income (expense), net&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Available-for-sale securities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Amounts reclassified from accumulated other comprehensive income (loss)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;32&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;3&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Other income (expense), net&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total reclassifications before tax&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;32&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;3&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Income before income taxes&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Tax effect of reclassifications&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(7)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(1)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Income tax expense&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Net reclassifications for the period&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;25&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;2&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Net income&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:120%"&gt;(a) These components of accumulated other comprehensive income (loss) are included in the computation of net periodic benefit cost (credit). See Note 9 for additional detail on our net periodic benefit cost (credit).&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:120%"&gt;(b) Regulatory adjustments represent pension and other postemployment benefit credits or costs expected to be recovered through rates and are deferred as part of our regulatory assets. See Note 3 for additional disclosures of regulatory assets and liabilities.&lt;/span&gt;&lt;/div&gt;</us-gaap:ComprehensiveIncomeNoteTextBlock>
    <us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock contextRef="c-1" id="f-533">&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following table sets forth the effect of reclassifications from accumulated other comprehensive income (loss) in our consolidated statements of income for the periods indicated:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:55.771%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:8.110%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:9.280%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:22.439%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="6" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Three Months Ended&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Affected Line Item in the &lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Details About Accumulated Other  &lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="6" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;March 31,&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Consolidated Statements&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Comprehensive Income (Loss) Components&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2026&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2025&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;of Income&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="6" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;Thousands of dollars&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt;padding-left:4.5pt;text-indent:-4.5pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Pension and other postemployment benefit plan obligations (a)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Amortization of net gain (loss)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(4,212)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(1,834)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Amortization of unrecognized prior service credit (cost)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(93)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(93)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(4,305)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(1,927)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Regulatory adjustments (b)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;4,305&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;1,927&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Amounts reclassified from accumulated other comprehensive income (loss)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Other income (expense), net&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Available-for-sale securities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Amounts reclassified from accumulated other comprehensive income (loss)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;32&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;3&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Other income (expense), net&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total reclassifications before tax&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;32&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;3&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Income before income taxes&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Tax effect of reclassifications&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(7)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(1)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Income tax expense&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Net reclassifications for the period&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;25&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;2&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Net income&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:120%"&gt;(a) These components of accumulated other comprehensive income (loss) are included in the computation of net periodic benefit cost (credit). See Note 9 for additional detail on our net periodic benefit cost (credit).&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:120%"&gt;(b) Regulatory adjustments represent pension and other postemployment benefit credits or costs expected to be recovered through rates and are deferred as part of our regulatory assets. See Note 3 for additional disclosures of regulatory assets and liabilities.&lt;/span&gt;&lt;/div&gt;</us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock>
    <dei:DocumentFiscalYearFocus contextRef="c-1" id="f-534">2026</dei:DocumentFiscalYearFocus>
    <us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses contextRef="c-1" decimals="-3" id="f-535" unitRef="usd">-4212000</us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses>
    <us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses contextRef="c-3" decimals="-3" id="f-536" unitRef="usd">-1834000</us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses>
    <us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit contextRef="c-1" decimals="-3" id="f-537" unitRef="usd">93000</us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit>
    <us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit contextRef="c-3" decimals="-3" id="f-538" unitRef="usd">93000</us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit>
    <ogs:DefinedBenefitPlanReclassificationAdjustmentBeforeTaxAndRegulatoryAdjustments contextRef="c-1" decimals="-3" id="f-539" unitRef="usd">-4305000</ogs:DefinedBenefitPlanReclassificationAdjustmentBeforeTaxAndRegulatoryAdjustments>
    <ogs:DefinedBenefitPlanReclassificationAdjustmentBeforeTaxAndRegulatoryAdjustments contextRef="c-3" decimals="-3" id="f-540" unitRef="usd">-1927000</ogs:DefinedBenefitPlanReclassificationAdjustmentBeforeTaxAndRegulatoryAdjustments>
    <ogs:DefinedBenefitPlanRegulatoryAdjustments contextRef="c-1" decimals="-3" id="f-541" unitRef="usd">-4305000</ogs:DefinedBenefitPlanRegulatoryAdjustments>
    <ogs:DefinedBenefitPlanRegulatoryAdjustments contextRef="c-3" decimals="-3" id="f-542" unitRef="usd">-1927000</ogs:DefinedBenefitPlanRegulatoryAdjustments>
    <us-gaap:ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent contextRef="c-97" decimals="-3" id="f-543" unitRef="usd">0</us-gaap:ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent>
    <us-gaap:ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent contextRef="c-98" decimals="-3" id="f-544" unitRef="usd">0</us-gaap:ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent>
    <us-gaap:DebtSecuritiesAvailableForSaleRealizedGainLoss contextRef="c-1" decimals="-3" id="f-545" unitRef="usd">32000</us-gaap:DebtSecuritiesAvailableForSaleRealizedGainLoss>
    <us-gaap:DebtSecuritiesAvailableForSaleRealizedGainLoss contextRef="c-3" decimals="-3" id="f-546" unitRef="usd">3000</us-gaap:DebtSecuritiesAvailableForSaleRealizedGainLoss>
    <us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax contextRef="c-1" decimals="-3" id="f-547" unitRef="usd">32000</us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax>
    <us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax contextRef="c-3" decimals="-3" id="f-548" unitRef="usd">3000</us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax>
    <us-gaap:ReclassificationFromAociCurrentPeriodTax contextRef="c-1" decimals="-3" id="f-549" unitRef="usd">-7000</us-gaap:ReclassificationFromAociCurrentPeriodTax>
    <us-gaap:ReclassificationFromAociCurrentPeriodTax contextRef="c-3" decimals="-3" id="f-550" unitRef="usd">-1000</us-gaap:ReclassificationFromAociCurrentPeriodTax>
    <us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax contextRef="c-1" decimals="-3" id="f-551" unitRef="usd">25000</us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax>
    <us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax contextRef="c-3" decimals="-3" id="f-552" unitRef="usd">2000</us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax>
    <us-gaap:EarningsPerShareTextBlock contextRef="c-1" id="f-553">EARNINGS PER SHARE&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Basic EPS is calculated by dividing net income by the daily weighted-average number of common shares outstanding during the periods presented, which includes fully vested stock awards that have not yet been issued as common stock. Diluted EPS is based on shares outstanding for the calculation of basic EPS, plus unvested stock awards granted under our compensation plans and equity forward sale agreements, but only to the extent these instruments dilute earnings per share.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following tables set forth the computation of basic and diluted EPS from continuing operations for the periods indicated:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.707%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:62.243%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:10.630%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.533%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:10.630%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.533%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:10.631%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="15" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Three Months Ended March 31, 2026&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Income&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Shares&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Per Share&lt;br/&gt;Amount&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="15" style="border-top:2pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;Thousands, except per share amounts&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Basic EPS Calculation&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="padding-left:15.75pt;text-indent:-9pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Net income available for common stock&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;128,673&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;62,913&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2.05&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Diluted EPS Calculation&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Effect of dilutive securities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;291&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Net income available for common stock and common stock equivalents&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;128,673&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;63,204&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2.04&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr style="height:15pt"&gt;&lt;td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="15" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Three Months Ended March 31, 2025&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Income&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Shares&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Per Share&lt;br/&gt;Amount&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="15" style="border-top:2pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;Thousands, except per share amounts&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Basic EPS Calculation&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="padding-left:15.75pt;text-indent:-9pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Net income available for common stock&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;119,419&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;60,077&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;1.99&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Diluted EPS Calculation&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Effect of dilutive securities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;189&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000000;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Net income available for common stock and common stock equivalents&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;119,419&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;60,266&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;1.98&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</us-gaap:EarningsPerShareTextBlock>
    <us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock contextRef="c-1" id="f-554">&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following tables set forth the computation of basic and diluted EPS from continuing operations for the periods indicated:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.707%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:62.243%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:10.630%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.533%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:10.630%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.533%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:10.631%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="15" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Three Months Ended March 31, 2026&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Income&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Shares&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Per Share&lt;br/&gt;Amount&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="15" style="border-top:2pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;Thousands, except per share amounts&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Basic EPS Calculation&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="padding-left:15.75pt;text-indent:-9pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Net income available for common stock&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;128,673&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;62,913&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2.05&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Diluted EPS Calculation&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Effect of dilutive securities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;291&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Net income available for common stock and common stock equivalents&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;128,673&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;63,204&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2.04&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr style="height:15pt"&gt;&lt;td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="15" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Three Months Ended March 31, 2025&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Income&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Shares&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Per Share&lt;br/&gt;Amount&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="15" style="border-top:2pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;Thousands, except per share amounts&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Basic EPS Calculation&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="padding-left:15.75pt;text-indent:-9pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Net income available for common stock&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;119,419&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;60,077&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;1.99&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Diluted EPS Calculation&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Effect of dilutive securities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;189&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000000;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Net income available for common stock and common stock equivalents&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;119,419&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;60,266&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;1.98&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock>
    <us-gaap:NetIncomeLoss contextRef="c-4" decimals="-3" id="f-555" unitRef="usd">128673000</us-gaap:NetIncomeLoss>
    <us-gaap:WeightedAverageNumberOfSharesOutstandingBasic contextRef="c-1" decimals="-3" id="f-556" unitRef="shares">62913000</us-gaap:WeightedAverageNumberOfSharesOutstandingBasic>
    <us-gaap:EarningsPerShareBasic
      contextRef="c-1"
      decimals="2"
      id="f-557"
      unitRef="usdPerShare">2.05</us-gaap:EarningsPerShareBasic>
    <us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment contextRef="c-1" decimals="-3" id="f-558" unitRef="shares">291000</us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment>
    <us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted contextRef="c-1" decimals="-3" id="f-559" unitRef="usd">128673000</us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted>
    <us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding contextRef="c-1" decimals="-3" id="f-560" unitRef="shares">63204000</us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding>
    <us-gaap:EarningsPerShareDiluted
      contextRef="c-1"
      decimals="2"
      id="f-561"
      unitRef="usdPerShare">2.04</us-gaap:EarningsPerShareDiluted>
    <us-gaap:NetIncomeLoss contextRef="c-3" decimals="-3" id="f-562" unitRef="usd">119419000</us-gaap:NetIncomeLoss>
    <us-gaap:WeightedAverageNumberOfSharesOutstandingBasic contextRef="c-3" decimals="-3" id="f-563" unitRef="shares">60077000</us-gaap:WeightedAverageNumberOfSharesOutstandingBasic>
    <us-gaap:EarningsPerShareBasic
      contextRef="c-3"
      decimals="2"
      id="f-564"
      unitRef="usdPerShare">1.99</us-gaap:EarningsPerShareBasic>
    <us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment contextRef="c-3" decimals="-3" id="f-565" unitRef="shares">189000</us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment>
    <us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted contextRef="c-3" decimals="-3" id="f-566" unitRef="usd">119419000</us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted>
    <us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding contextRef="c-3" decimals="-3" id="f-567" unitRef="shares">60266000</us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding>
    <us-gaap:EarningsPerShareDiluted
      contextRef="c-3"
      decimals="2"
      id="f-568"
      unitRef="usdPerShare">1.98</us-gaap:EarningsPerShareDiluted>
    <us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock contextRef="c-1" id="f-569">EMPLOYEE BENEFIT PLANS&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following tables set forth the components of net periodic benefit cost (credit) for our pension, inclusive of our defined benefit pension plan, supplemental executive retirement plan, and other postemployment benefit plans for the periods indicated:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:72.584%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.384%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.767%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="6" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Pension Benefits&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="6" style="border-top:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Three Months Ended&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="6" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;March 31,&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2026&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2025&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:top"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;(Thousands of dollars)&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Components of net periodic benefit cost (credit)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Service cost&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;1,291&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;1,337&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Interest cost (a)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;9,525&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;10,042&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Expected return on assets (a)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(10,490)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(11,910)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Amortization of unrecognized prior service cost (credit) (a)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;93&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;93&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Amortization of net loss (gain) (a)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;4,220&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;1,865&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="padding-left:6.75pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Net periodic benefit cost (credit)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;4,639&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;1,427&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="12" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(a) These amounts, net of any amounts capitalized as a regulatory asset, have been recognized as other (income) expense, net in the consolidated statement of income. See Note 11 for additional detail.&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:74.630%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.034%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.036%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="6" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Other Postemployment Benefits&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="6" style="border-top:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Three Months Ended&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="6" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;March 31,&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2026&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2025&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="6" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;Thousands of dollars&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Components of net periodic benefit cost (credit)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Service cost&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;110&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;123&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Interest cost (a)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2,020&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;2,069&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Expected return on assets (a)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(2,194)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(2,212)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Amortization of unrecognized prior service cost (credit) (a)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Amortization of net loss (gain) (a)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(8)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(31)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="padding-left:6.75pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Net periodic benefit cost (credit)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(72)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(51)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(a) These amounts, net of any amounts capitalized as a regulatory asset, have been recognized as other (income) expense, net in the consolidated statement of income. See Note 11 for additional detail.&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;We recover qualified pension benefit plan and other postemployment benefit plan costs through rates charged to our customers. Certain regulatory authorities require that the recovery of these costs be based on specific guidelines. The difference between these regulatory-based amounts and the periodic benefit cost calculated pursuant to GAAP is deferred as a regulatory asset or liability and amortized to expense over periods in which this difference will be recovered in rates, as authorized by the applicable regulatory authorities. For the&#160;three months ended&#160;March&#160;31, 2026 and 2025, regulatory deferrals related to net periodic benefit cost (credit) were $(1.1)&#160;million and $(0.3)&#160;million, respectively.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;We capitalize all eligible service cost and non-service (credit) components under the accounting requirements of ASC Topic 980 (Regulated Operations) for rate-regulated entities. Capitalized non-service (credits) reflected in pension and other postemployment benefit costs, net within regulatory assets in our consolidated balance sheets were $(6.0)&#160;million and $(6.8)&#160;million at March&#160;31, 2026 and December&#160;31, 2025, respectively. See Note 3 of the Notes to Consolidated Financial Statements in this Quarterly Report for additional information.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Nonqualified Deferred Compensation Plan&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt; - We have a nonqualified deferred compensation plan with obligations of $21.9&#160;million both at March&#160;31, 2026 and December&#160;31, 2025, which are reported within other deferred credits in our consolidated balance sheets. These obligations represent the amount owed to plan participants and are treated as if invested in specified deemed investment options. A significant portion of the obligation is indirectly funded with key-person corporate-owned life insurance policies to offset costs associated with our nonqualified deferred compensation plan and the supplemental executive retirement plan. These corporate-owned life insurance policies are measured at cash surrender value of $45.4&#160;million and $46.2&#160;million at March&#160;31, 2026, and December&#160;31, 2025, respectively, and are reported within other assets in our consolidated balance sheets. &lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Gains (losses) on the corporate-owned life insurance policies are recognized in other income (expense), net within our consolidated statements of income; see Note 11 for additional detail of our other income (expense), net. Deferred compensation expense (income) associated with the nonqualified deferred compensation plan is recognized in operations and maintenance expense within our consolidated statements of income were $(0.5)&#160;million and $(0.3)&#160;million for the three months ended March&#160;31, 2026 and 2025, respectively.&lt;/span&gt;&lt;/div&gt;</us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock>
    <us-gaap:ScheduleOfNetBenefitCostsTableTextBlock contextRef="c-1" id="f-570">&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following tables set forth the components of net periodic benefit cost (credit) for our pension, inclusive of our defined benefit pension plan, supplemental executive retirement plan, and other postemployment benefit plans for the periods indicated:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:72.584%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.384%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.767%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="6" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Pension Benefits&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="6" style="border-top:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Three Months Ended&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="6" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;March 31,&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2026&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2025&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:top"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;(Thousands of dollars)&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Components of net periodic benefit cost (credit)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Service cost&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;1,291&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;1,337&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Interest cost (a)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;9,525&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;10,042&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Expected return on assets (a)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(10,490)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(11,910)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Amortization of unrecognized prior service cost (credit) (a)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;93&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;93&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Amortization of net loss (gain) (a)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;4,220&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;1,865&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="padding-left:6.75pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Net periodic benefit cost (credit)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;4,639&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;1,427&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="12" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(a) These amounts, net of any amounts capitalized as a regulatory asset, have been recognized as other (income) expense, net in the consolidated statement of income. See Note 11 for additional detail.&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:74.630%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.034%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.036%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="6" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Other Postemployment Benefits&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="6" style="border-top:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Three Months Ended&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="6" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;March 31,&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2026&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2025&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="6" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;Thousands of dollars&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Components of net periodic benefit cost (credit)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Service cost&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;110&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;123&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Interest cost (a)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2,020&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;2,069&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Expected return on assets (a)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(2,194)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(2,212)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Amortization of unrecognized prior service cost (credit) (a)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Amortization of net loss (gain) (a)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(8)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(31)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="padding-left:6.75pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Net periodic benefit cost (credit)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(72)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(51)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(a) These amounts, net of any amounts capitalized as a regulatory asset, have been recognized as other (income) expense, net in the consolidated statement of income. See Note 11 for additional detail.&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfNetBenefitCostsTableTextBlock>
    <dei:DocumentFiscalYearFocus contextRef="c-1" id="f-571">2026</dei:DocumentFiscalYearFocus>
    <us-gaap:DefinedBenefitPlanServiceCost contextRef="c-97" decimals="-3" id="f-572" unitRef="usd">1291000</us-gaap:DefinedBenefitPlanServiceCost>
    <us-gaap:DefinedBenefitPlanServiceCost contextRef="c-98" decimals="-3" id="f-573" unitRef="usd">1337000</us-gaap:DefinedBenefitPlanServiceCost>
    <us-gaap:DefinedBenefitPlanInterestCost contextRef="c-97" decimals="-3" id="f-574" unitRef="usd">9525000</us-gaap:DefinedBenefitPlanInterestCost>
    <us-gaap:DefinedBenefitPlanInterestCost contextRef="c-98" decimals="-3" id="f-575" unitRef="usd">10042000</us-gaap:DefinedBenefitPlanInterestCost>
    <us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets contextRef="c-97" decimals="-3" id="f-576" unitRef="usd">10490000</us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets>
    <us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets contextRef="c-98" decimals="-3" id="f-577" unitRef="usd">11910000</us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets>
    <us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit contextRef="c-97" decimals="-3" id="f-578" unitRef="usd">93000</us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit>
    <us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit contextRef="c-98" decimals="-3" id="f-579" unitRef="usd">93000</us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit>
    <us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses contextRef="c-97" decimals="-3" id="f-580" unitRef="usd">-4220000</us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses>
    <us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses contextRef="c-98" decimals="-3" id="f-581" unitRef="usd">-1865000</us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses>
    <us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost contextRef="c-97" decimals="-3" id="f-582" unitRef="usd">4639000</us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost>
    <us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost contextRef="c-98" decimals="-3" id="f-583" unitRef="usd">1427000</us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost>
    <dei:DocumentFiscalYearFocus contextRef="c-1" id="f-584">2026</dei:DocumentFiscalYearFocus>
    <us-gaap:DefinedBenefitPlanServiceCost contextRef="c-99" decimals="-3" id="f-585" unitRef="usd">110000</us-gaap:DefinedBenefitPlanServiceCost>
    <us-gaap:DefinedBenefitPlanServiceCost contextRef="c-100" decimals="-3" id="f-586" unitRef="usd">123000</us-gaap:DefinedBenefitPlanServiceCost>
    <us-gaap:DefinedBenefitPlanInterestCost contextRef="c-99" decimals="-3" id="f-587" unitRef="usd">2020000</us-gaap:DefinedBenefitPlanInterestCost>
    <us-gaap:DefinedBenefitPlanInterestCost contextRef="c-100" decimals="-3" id="f-588" unitRef="usd">2069000</us-gaap:DefinedBenefitPlanInterestCost>
    <us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets contextRef="c-99" decimals="-3" id="f-589" unitRef="usd">2194000</us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets>
    <us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets contextRef="c-100" decimals="-3" id="f-590" unitRef="usd">2212000</us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets>
    <us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit contextRef="c-99" decimals="-3" id="f-591" unitRef="usd">0</us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit>
    <us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit contextRef="c-100" decimals="-3" id="f-592" unitRef="usd">0</us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit>
    <us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses contextRef="c-99" decimals="-3" id="f-593" unitRef="usd">8000</us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses>
    <us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses contextRef="c-100" decimals="-3" id="f-594" unitRef="usd">31000</us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses>
    <us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost contextRef="c-99" decimals="-3" id="f-595" unitRef="usd">-72000</us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost>
    <us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost contextRef="c-100" decimals="-3" id="f-596" unitRef="usd">-51000</us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost>
    <ogs:RegulatoryDeferralOfNetPeriodicBenefitCosts contextRef="c-1" decimals="-3" id="f-597" unitRef="usd">-1100000</ogs:RegulatoryDeferralOfNetPeriodicBenefitCosts>
    <ogs:RegulatoryDeferralOfNetPeriodicBenefitCosts contextRef="c-3" decimals="-3" id="f-598" unitRef="usd">-300000</ogs:RegulatoryDeferralOfNetPeriodicBenefitCosts>
    <ogs:CapitalizedNonServiceCostComponents contextRef="c-5" decimals="-3" id="f-599" unitRef="usd">6000000.0</ogs:CapitalizedNonServiceCostComponents>
    <ogs:CapitalizedNonServiceCostComponents contextRef="c-6" decimals="-3" id="f-600" unitRef="usd">6800000</ogs:CapitalizedNonServiceCostComponents>
    <us-gaap:OtherDeferredCompensationArrangementsLiabilityCurrentAndNoncurrent contextRef="c-5" decimals="-3" id="f-601" unitRef="usd">21900000</us-gaap:OtherDeferredCompensationArrangementsLiabilityCurrentAndNoncurrent>
    <us-gaap:CashSurrenderValueOfLifeInsurance contextRef="c-5" decimals="-3" id="f-602" unitRef="usd">45400000</us-gaap:CashSurrenderValueOfLifeInsurance>
    <us-gaap:CashSurrenderValueOfLifeInsurance contextRef="c-6" decimals="-3" id="f-603" unitRef="usd">46200000</us-gaap:CashSurrenderValueOfLifeInsurance>
    <us-gaap:DeferredCompensationArrangementWithIndividualCompensationExpense contextRef="c-1" decimals="-3" id="f-604" unitRef="usd">-500000</us-gaap:DeferredCompensationArrangementWithIndividualCompensationExpense>
    <us-gaap:DeferredCompensationArrangementWithIndividualCompensationExpense contextRef="c-3" decimals="-3" id="f-605" unitRef="usd">-300000</us-gaap:DeferredCompensationArrangementWithIndividualCompensationExpense>
    <us-gaap:IncomeTaxDisclosureTextBlock contextRef="c-1" id="f-606">INCOME TAXES&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;We use an estimated annual effective tax rate for purposes of determining the income tax provision during interim reporting periods. In calculating our estimated annual effective tax rate, we consider forecasted annual pre-tax income and estimated permanent book versus tax differences, as well as tax credits. Adjustments to the effective tax rate and estimates will occur as information and assumptions change.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;At March&#160;31, 2026, we had no uncertain tax positions. We are no longer subject to income tax examination for years prior to 2022. Changes in tax laws or tax rates are recognized in the financial reporting period that includes the enactment date. &lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Income tax expense reflects credits for the amortization of the regulatory liability associated with EDIT that were returned to customers of $9.5&#160;million and $8.1&#160;million for the three months ended March&#160;31, 2026 and 2025, respectively.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;In April 2026, we received $64.3 million from the IRS, consisting of a $55.6&#160;million federal income tax refund and $8.7&#160;million of interest. The refund relates to the amendment of our 2022 federal income tax return following the issuance of Revenue Procedure 2024&#x2011;15 in 2024, which allows for the deferral of income taxes on securitization bond proceeds received from a qualifying state financing entity.&lt;/span&gt;&lt;/div&gt;</us-gaap:IncomeTaxDisclosureTextBlock>
    <ogs:ReductioninincometaxexpensefortheamortizationoftheregulatoryliabilityassociatedwithexcessADITthatwasreturnedtocustomers contextRef="c-1" decimals="-3" id="f-607" unitRef="usd">9500000</ogs:ReductioninincometaxexpensefortheamortizationoftheregulatoryliabilityassociatedwithexcessADITthatwasreturnedtocustomers>
    <ogs:ReductioninincometaxexpensefortheamortizationoftheregulatoryliabilityassociatedwithexcessADITthatwasreturnedtocustomers contextRef="c-3" decimals="-3" id="f-608" unitRef="usd">8100000</ogs:ReductioninincometaxexpensefortheamortizationoftheregulatoryliabilityassociatedwithexcessADITthatwasreturnedtocustomers>
    <ogs:IRS2022FederalIncomeTaxReturn contextRef="c-101" decimals="-3" id="f-609" unitRef="usd">64300000</ogs:IRS2022FederalIncomeTaxReturn>
    <ogs:IRS2022IncomeTaxReturnFederalIncomeTax contextRef="c-101" decimals="-3" id="f-610" unitRef="usd">55600000</ogs:IRS2022IncomeTaxReturnFederalIncomeTax>
    <ogs:IRS2022IncomeTaxReturnInterest contextRef="c-101" decimals="-3" id="f-611" unitRef="usd">8700000</ogs:IRS2022IncomeTaxReturnInterest>
    <us-gaap:OtherNonoperatingIncomeAndExpenseTextBlock contextRef="c-1" id="f-613">OTHER INCOME AND OTHER EXPENSE&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following table sets forth the components of other income and other expense for the periods indicated:&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:72.584%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.384%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.767%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Three Months Ended&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;March 31,&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2026&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2025&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;Thousands of dollars&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Net periodic benefit (cost) credit other than service cost&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(1,153)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;332&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Gain (loss) on investments associated with nonqualified deferred compensation plans&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(738)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;147&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Unrealized gain (loss) on marketable equity securities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(122)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Other income (expense), net&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(84)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;39&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="padding-left:6pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total other income (expense), net&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(2,097)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;518&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</us-gaap:OtherNonoperatingIncomeAndExpenseTextBlock>
    <us-gaap:OtherNonoperatingIncomeAndExpenseTextBlock contextRef="c-1" id="f-612">OTHER INCOME AND OTHER EXPENSE&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following table sets forth the components of other income and other expense for the periods indicated:&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:72.584%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.384%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.767%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Three Months Ended&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;March 31,&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2026&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2025&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;Thousands of dollars&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Net periodic benefit (cost) credit other than service cost&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(1,153)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;332&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Gain (loss) on investments associated with nonqualified deferred compensation plans&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(738)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;147&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Unrealized gain (loss) on marketable equity securities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(122)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Other income (expense), net&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(84)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;39&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="padding-left:6pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total other income (expense), net&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(2,097)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;518&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</us-gaap:OtherNonoperatingIncomeAndExpenseTextBlock>
    <us-gaap:ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock contextRef="c-1" id="f-614">&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following table sets forth the components of other income and other expense for the periods indicated:&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:72.584%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.384%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.767%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Three Months Ended&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;March 31,&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2026&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2025&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;Thousands of dollars&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Net periodic benefit (cost) credit other than service cost&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(1,153)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;332&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Gain (loss) on investments associated with nonqualified deferred compensation plans&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(738)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;147&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Unrealized gain (loss) on marketable equity securities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(122)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Other income (expense), net&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(84)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;39&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="padding-left:6pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total other income (expense), net&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(2,097)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;518&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock>
    <dei:DocumentFiscalYearFocus contextRef="c-1" id="f-615">2026</dei:DocumentFiscalYearFocus>
    <us-gaap:OtherNonoperatingIncomeExpense contextRef="c-102" decimals="-3" id="f-616" unitRef="usd">-1153000</us-gaap:OtherNonoperatingIncomeExpense>
    <us-gaap:OtherNonoperatingIncomeExpense contextRef="c-103" decimals="-3" id="f-617" unitRef="usd">332000</us-gaap:OtherNonoperatingIncomeExpense>
    <us-gaap:OtherNonoperatingIncomeExpense contextRef="c-104" decimals="-3" id="f-618" unitRef="usd">-738000</us-gaap:OtherNonoperatingIncomeExpense>
    <us-gaap:OtherNonoperatingIncomeExpense contextRef="c-105" decimals="-3" id="f-619" unitRef="usd">147000</us-gaap:OtherNonoperatingIncomeExpense>
    <us-gaap:OtherNonoperatingIncomeExpense contextRef="c-106" decimals="-3" id="f-620" unitRef="usd">-122000</us-gaap:OtherNonoperatingIncomeExpense>
    <us-gaap:OtherNonoperatingIncomeExpense contextRef="c-107" decimals="-3" id="f-621" unitRef="usd">0</us-gaap:OtherNonoperatingIncomeExpense>
    <us-gaap:OtherNonoperatingIncomeExpense contextRef="c-108" decimals="-3" id="f-622" unitRef="usd">-84000</us-gaap:OtherNonoperatingIncomeExpense>
    <us-gaap:OtherNonoperatingIncomeExpense contextRef="c-109" decimals="-3" id="f-623" unitRef="usd">39000</us-gaap:OtherNonoperatingIncomeExpense>
    <us-gaap:OtherNonoperatingIncomeExpense contextRef="c-1" decimals="-3" id="f-624" unitRef="usd">-2097000</us-gaap:OtherNonoperatingIncomeExpense>
    <us-gaap:OtherNonoperatingIncomeExpense contextRef="c-3" decimals="-3" id="f-625" unitRef="usd">518000</us-gaap:OtherNonoperatingIncomeExpense>
    <us-gaap:CommitmentsAndContingenciesDisclosureTextBlock contextRef="c-1" id="f-626">COMMITMENTS AND CONTINGENCIES&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Environmental Matters&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt; - We are subject to multiple laws and regulations regarding protection of the environment and natural and cultural resources, which affect many aspects of our present and future operations. Regulated activities include, but are not limited to, those involving air emissions, storm water and wastewater discharges, handling and disposal of solid and hazardous wastes, wetland preservation, plant and wildlife protection, hazardous materials use, storage and transportation, and pipeline and facility construction. These laws and regulations require us to obtain and/or comply with a wide variety of environmental clearances, registrations, licenses, permits, and other approvals. Failure to comply with these laws, regulations, licenses, and permits or the discovery of presently unknown environmental conditions may expose us to fines, penalties, and/or interruptions in our operations that could be material to our results of operations. In addition, emission controls and/or other regulatory or permitting mandates under the CAA and other similar federal and state laws could require unexpected capital expenditures. We cannot assure that existing environmental statutes and regulations will not be revised or that new regulations will not be adopted or become applicable to us. Revised or additional statutes or regulations that result in increased compliance costs or additional operating restrictions could have a material adverse effect on our business, financial condition, and results of operations. Our expenditures for environmental investigation and remediation compliance to date have not been significant in relation to our financial position, results of operations, or cash flows, and our expenditures related to environmental matters had no material effects on earnings or cash flows during the three months ended March 31, 2026 and 2025.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;We own or retain legal responsibility for certain environmental conditions at 12 former MGP sites in Kansas. These sites contain contaminants generally associated with MGP sites and are subject to control or remediation under various environmental laws and regulations. A consent agreement with the KDHE governs all environmental investigation and remediation work at these sites. The terms of the consent agreement require us to investigate these sites and set remediation activities based upon the results of the investigations and risk analysis. Remediation typically involves the management of contaminated soils and may involve removal of structures and monitoring and/or remediation of groundwater. We have completed or are addressing removal of the source of soil contamination at all 12 sites and continue to monitor groundwater at seven of the 12 sites according to plans approved by the KDHE. Regulatory closure has been achieved at five of the 12 sites, but these sites remain subject to potential future requirements that may result in additional costs.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;We have an AAO that allows Kansas Gas Service to defer and seek recovery of costs necessary for investigation and remediation at, and nearby, these 12 former MGP sites that are incurred after January 1, 2017. In January 2025, Kansas Gas Service requested to increase the cap on the AAO to $32.0 million from $15.0 million. The original $15.0&#160;million cap approved in 2017 was the result of a unanimous settlement agreement and contained additional reporting requirements and obligations. In May 2025, Kansas Gas Service, the KCC staff, and the Citizens&#x2019; Utility Ratepayer Board filed a unanimous settlement agreement with the KCC agreeing to increase the cap to $32.0 million and to leave all of the other provisions of the 2017 settlement agreement in place. The KCC issued an order approving the settlement agreement in July 2025.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Pursuant to the AAO, costs approved for recovery in a future rate proceeding are to be amortized over a 15-year period. The unamortized amounts are not included in rate base or accumulate carrying charges. Following a determination that future investigation and remediation work approved by the KDHE exceeds $32.0 million, net of any related insurance recoveries, Kansas Gas Service is required to file an application with the KCC for approval to increase the $32.0 million cap. At March&#160;31, 2026 and December&#160;31, 2025, we have deferred $30.6&#160;million and $30.1&#160;million, respectively, for accrued investigation and remediation costs, net of insurance proceeds, pursuant to our AAO. &lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;We also own or retain legal responsibility for certain environmental conditions at a former MGP site in Texas. At the request of the TCEQ, we began investigating the level and extent of contamination associated with the site under their Texas Risk Reduction Program. A preliminary site investigation revealed that this site contains contaminants generally associated with MGP sites and is subject to control or remediation under various environmental laws and regulations. At March&#160;31, 2026, estimated costs associated with expected remediation activities for this site are not material.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Our expenditures for environmental evaluation, mitigation, remediation and compliance to date have not been significant in relation to our financial position, results of operations, or cash flows, and our expenditures related to environmental matters had no material effects on earnings or cash flows during the three months ended March 31, 2026 and 2025. The reserve for remediation of our MGP sites was $13.2&#160;million and $13.7&#160;million at March&#160;31, 2026 and December&#160;31, 2025, respectively.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Environmental issues may exist with respect to these MGP sites that are unknown to us. Accordingly, future costs are dependent on the final determination and regulatory approval of any remedial actions, the complexity of the site, level of remediation required, changing technology and governmental regulations, and to the extent not recovered by insurance or recoverable in rates from our customers, such costs could be material to our financial condition, results of operations, or cash flows.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;We are subject to environmental regulation by federal, state, and local authorities. Due to the inherent uncertainties surrounding the development of federal and state environmental laws and regulations, we cannot determine with specificity the impact such laws and regulations may have on our existing and future facilities. With the trend toward stricter standards, greater regulation, and more extensive permit requirements for the types of assets operated by us, our environmental expenditures could increase in the future. Such expenditures may not be fully recovered by insurance or recoverable in rates from our customers, and those costs may adversely affect our financial condition, results of operations, and cash flows.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Environmental Footprint&#160;-&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;&#160;We cannot assure that existing environmental statutes and regulations will not be revised or that new regulations will not be adopted or become applicable to us. Revised or additional regulations that result in increased compliance costs or additional operating restrictions could have a material adverse effect on our business, financial condition, and results of operations. Our expenditures for environmental investigation and remediation compliance to-date have not been significant in relation to our financial position, results of operations, or cash flows, and our expenditures related to environmental matters had no material effects on earnings or cash flows for the three months ended March 31, 2026 and 2025.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Pipeline Safety&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt; - We are subject to regulation under federal pipeline safety statutes and any analogous state regulations. These include safety requirements for the design, construction, operation, and maintenance of pipelines, including transmission and distribution pipelines. At the federal level, we are regulated by PHMSA. PHMSA regulations require the following for certain pipelines: inspection and maintenance plans; integrity management programs, including the determination of pipeline integrity risks and periodic assessments on certain pipeline segments; an operator qualification program, which includes certain trainings; a public awareness program that provides certain information; and a control room management plan.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;PHMSA promulgates various regulations related to pipeline safety. As part of the Consolidated Appropriations Act, 2021, the PIPES Act reauthorized PHMSA through 2023 and directed the agency to move forward with several regulatory actions. Outstanding regulatory actions include the &#x201c;Pipeline Safety: Safety of Gas Distribution Pipelines&#x201d; and &#x201c;Pipeline Safety: Gas Pipeline Leak Detection&#x201d; proposed rulemakings. The &#x201c;Pipeline Safety: Gas Pipeline Leak Detection&#x201d; proposed rule would require operators of new and existing transmission and distribution pipeline facilities to conduct certain leak detection and repair programs and require facility inspection and maintenance plans to align with those regulations. On January 20, 2025, an executive order began a regulatory freeze on all rulemakings that were not yet effective pending further review. To the extent such rulemakings impose more stringent requirements on our facilities, we may be required to incur expenditures that may be material.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Regulatory&#160;-&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt; Several regulatory initiatives impacted the earnings and future earnings potential of our business. See additional information regarding our regulatory initiatives in the &#x201c;Regulatory Activities&#x201d; section of Management&#x2019;s Discussion and Analysis of Financial Condition and Results of Operations.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Legal Proceedings&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt; - We are a party to various litigation matters and claims that have arisen in the normal course of our operations. While the results of litigation and claims cannot be predicted with certainty, we believe the reasonably possible losses from such matters, individually and in the aggregate, are not material. Additionally, we believe the probable outcome of such matters will not have a material adverse effect on our results of operations, financial position, or cash flows.&lt;/span&gt;&lt;/div&gt;</us-gaap:CommitmentsAndContingenciesDisclosureTextBlock>
    <ogs:NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions contextRef="c-5" decimals="INF" id="f-627" unitRef="number">12</ogs:NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions>
    <ogs:NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions contextRef="c-5" decimals="INF" id="f-628" unitRef="number">12</ogs:NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions>
    <ogs:Numberofsiteswithongoinggroundwatermonitoring contextRef="c-5" decimals="INF" id="f-629" unitRef="number">7</ogs:Numberofsiteswithongoinggroundwatermonitoring>
    <ogs:NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions contextRef="c-5" decimals="INF" id="f-630" unitRef="number">12</ogs:NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions>
    <ogs:NumberOfSitesWhereRegulatoryClosureHasBeenAchieved contextRef="c-5" decimals="INF" id="f-631" unitRef="number">5</ogs:NumberOfSitesWhereRegulatoryClosureHasBeenAchieved>
    <ogs:NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions contextRef="c-5" decimals="INF" id="f-632" unitRef="number">12</ogs:NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions>
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    <us-gaap:FairValueDisclosuresTextBlock contextRef="c-1" id="f-644">DERIVATIVE FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Accounting Treatment&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt; - We record all derivative instruments at fair value, with the exception of normal purchases and normal sales that are expected to result in physical delivery. The accounting for changes in the fair value of a derivative instrument depends on whether it has been designated and qualifies as part of a hedging relationship and, if so, the reason for holding it, or if regulatory requirements impose a different accounting treatment.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;If certain conditions are met, we may elect to designate a derivative instrument as a hedge of exposure to changes in fair values or cash flows. We have not elected to designate any of our derivative instruments as hedges.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The table below summarizes the various ways in which we account for our derivative instruments and the impact on our consolidated financial statements:&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-top:5pt;text-align:center"&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.853%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:22.326%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:2.728%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:34.039%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:2.728%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:34.479%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Recognition and Measurement&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Accounting Treatment&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Balance Sheet&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:2pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Income Statement&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:120%"&gt;Normal purchases and&lt;br/&gt;normal sales&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Fair value not recorded&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Change in fair value not recognized in earnings&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Mark-to-market&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Recorded at fair value&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Change in fair value recognized in, and recoverable through, the purchased-gas cost adjustment mechanisms&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Fair Value Measurements&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt; - We define fair value as the price that would be received from the sale of an asset or the transfer of a liability in an orderly transaction between market participants at the measurement date. We use the market and income approaches to determine the fair value of our assets and liabilities and consider the markets in which the transactions are executed. We measure the fair value of a group of financial assets and liabilities consistent with how a market participant would price the net risk exposure at the measurement date.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Fair Value Hierarchy&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt; - At each balance sheet date, we utilize a fair value hierarchy to classify fair value amounts recognized or disclosed in our consolidated financial statements based on the observability of inputs used to estimate such fair value. The levels of the hierarchy are described below:&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:36pt;text-align:justify;text-indent:-18pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;&#x2022;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt"&gt;Level 1 - Unadjusted quoted prices in active markets for identical assets or liabilities;&lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:36pt;text-align:justify;text-indent:-18pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;&#x2022;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt"&gt;Level 2 - Significant observable pricing inputs other than quoted prices included within Level 1 that are, either directly or indirectly, observable as of the reporting date. Essentially, this represents inputs that are derived principally from or corroborated by observable market data; and&lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:36pt;text-align:justify;text-indent:-18pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;&#x2022;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt"&gt;Level 3 - May include one or more unobservable inputs that are significant in establishing a fair value estimate. These unobservable inputs are developed based on the best information available and may include our own internal data.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;We recognize transfers into and out of the levels as of the end of each reporting period.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Determining the appropriate classification of our fair value measurements within the fair value hierarchy requires management&#x2019;s judgment regarding the degree to which market data is observable or corroborated by observable market data. We categorize derivatives for which fair value is determined using multiple inputs within a single level, based on the lowest level input that is significant to the fair value measurement in its entirety.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Derivative Instruments&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt; -&#160;Our derivatives are comprised of over-the-counter natural gas fixed-price swaps and call options. &lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"&gt;Swaps - &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;At March&#160;31, 2026, we did not hold any swaps. At December&#160;31, 2025, we held over-the-counter natural gas fixed-price swaps for the heating season ending March 2026 with a total notional amount of 5.02 Bcf.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"&gt;Options&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt; - At March&#160;31, 2026, we did not hold any natural gas call options. At December&#160;31, 2025, we held purchased natural gas call options for the heating season ending March 2026 with total notional amount of 0.50 Bcf, for which we paid premiums of $0.5&#160;million.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;We have not designated any of our derivative instruments as accounting hedges. These contracts are included in, and recoverable through, our purchased-gas cost adjustment mechanisms. Additionally, premiums paid, changes in fair value and any settlements received associated with these contracts are deferred as part of our unrecovered purchased-gas costs in our consolidated balance sheets. There were no transfers between levels for the periods presented.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Other Financial Instruments&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt; -&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;&#160;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The approximate fair value of cash and cash equivalents, restricted cash and cash equivalents, accounts receivable, and accounts payable is equal to book value, due to the short-term nature of these items. The fair value of our commercial paper was determined using quoted prices in an active market.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following tables summarize, by level within the fair value hierarchy, our derivative and other assets and liabilities that were accounted for at fair value on a recurring basis at March&#160;31, 2026 and December 31, 2025:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:45.683%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.384%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.384%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.384%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.770%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="21" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;March 31, 2026&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Level 1&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Level 2&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Netting (c)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Total&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="21" style="border-top:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;(Thousands of dollars)&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Assets:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;United States treasury notes (b)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;7,381&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;7,381&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Corporate bonds (b)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;17,971&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;17,971&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Marketable equity securities (d)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2,506&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2,506&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total assets&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;9,887&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;17,971&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;27,858&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Liabilities:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Derivative instruments - swaps (a)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:120%"&gt;(a) The fair value is included in other current assets and other current liabilities in our consolidated balance sheets.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:120%"&gt;(b) The fair value is included in other current and noncurrent assets in our consolidated balance sheets.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:120%"&gt;(c) Our over-the-counter natural gas fixed-price swaps are presented on a net basis when the right of offset exists.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:120%"&gt;(d) The fair value is included in other current assets in our consolidated balance sheets.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:45.683%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.384%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.384%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.384%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.770%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="21" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;December 31, 2025&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Level 1&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Level 2&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Netting (c)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Total&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="21" style="border-top:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;(Thousands of dollars)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Assets:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;United States treasury notes (b)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;9,329&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;9,329&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Corporate bonds (b)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;18,643&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;18,643&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Marketable equity securities (d)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;2,627&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;2,627&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total assets&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;11,956&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;18,643&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;30,599&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Liabilities:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Derivative instruments - swaps (a)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;7,309&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;7,309&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:120%"&gt;(a) The fair value is included in other current assets and other current liabilities in our consolidated balance sheets.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:120%"&gt;(b) The fair value is included in other current and noncurrent assets in our consolidated balance sheets.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:120%"&gt;(c) Our over-the-counter natural gas fixed-price swaps are presented on a net basis when the right of offset exists.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:120%"&gt;(d) The fair value is included in other current assets in our consolidated balance sheets.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The estimated fair value of our long-term debt, including current maturities, was $2.5&#160;billion at both March&#160;31, 2026 and December&#160;31, 2025. The estimated fair value of our long-term debt was determined using quoted market prices and is classified as Level 2.&lt;/span&gt;&lt;/div&gt;</us-gaap:FairValueDisclosuresTextBlock>
    <us-gaap:DerivativesReportingOfDerivativeActivity contextRef="c-1" id="f-645">&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Accounting Treatment&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt; - We record all derivative instruments at fair value, with the exception of normal purchases and normal sales that are expected to result in physical delivery. The accounting for changes in the fair value of a derivative instrument depends on whether it has been designated and qualifies as part of a hedging relationship and, if so, the reason for holding it, or if regulatory requirements impose a different accounting treatment.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;If certain conditions are met, we may elect to designate a derivative instrument as a hedge of exposure to changes in fair values or cash flows. We have not elected to designate any of our derivative instruments as hedges.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The table below summarizes the various ways in which we account for our derivative instruments and the impact on our consolidated financial statements:&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-top:5pt;text-align:center"&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.853%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:22.326%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:2.728%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:34.039%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:2.728%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:34.479%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Recognition and Measurement&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Accounting Treatment&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Balance Sheet&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:2pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Income Statement&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:120%"&gt;Normal purchases and&lt;br/&gt;normal sales&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Fair value not recorded&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Change in fair value not recognized in earnings&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Mark-to-market&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Recorded at fair value&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Change in fair value recognized in, and recoverable through, the purchased-gas cost adjustment mechanisms&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</us-gaap:DerivativesReportingOfDerivativeActivity>
    <us-gaap:FairValueMeasurementPolicyPolicyTextBlock contextRef="c-1" id="f-646">&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Fair Value Measurements&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt; - We define fair value as the price that would be received from the sale of an asset or the transfer of a liability in an orderly transaction between market participants at the measurement date. We use the market and income approaches to determine the fair value of our assets and liabilities and consider the markets in which the transactions are executed. We measure the fair value of a group of financial assets and liabilities consistent with how a market participant would price the net risk exposure at the measurement date.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:700;line-height:120%"&gt;Fair Value Hierarchy&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt; - At each balance sheet date, we utilize a fair value hierarchy to classify fair value amounts recognized or disclosed in our consolidated financial statements based on the observability of inputs used to estimate such fair value. The levels of the hierarchy are described below:&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:36pt;text-align:justify;text-indent:-18pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;&#x2022;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt"&gt;Level 1 - Unadjusted quoted prices in active markets for identical assets or liabilities;&lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:36pt;text-align:justify;text-indent:-18pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;&#x2022;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt"&gt;Level 2 - Significant observable pricing inputs other than quoted prices included within Level 1 that are, either directly or indirectly, observable as of the reporting date. Essentially, this represents inputs that are derived principally from or corroborated by observable market data; and&lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:36pt;text-align:justify;text-indent:-18pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;&#x2022;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt"&gt;Level 3 - May include one or more unobservable inputs that are significant in establishing a fair value estimate. These unobservable inputs are developed based on the best information available and may include our own internal data.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;We recognize transfers into and out of the levels as of the end of each reporting period.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Determining the appropriate classification of our fair value measurements within the fair value hierarchy requires management&#x2019;s judgment regarding the degree to which market data is observable or corroborated by observable market data. We categorize derivatives for which fair value is determined using multiple inputs within a single level, based on the lowest level input that is significant to the fair value measurement in its entirety.&lt;/span&gt;&lt;/div&gt;</us-gaap:FairValueMeasurementPolicyPolicyTextBlock>
    <us-gaap:DerivativeNonmonetaryNotionalAmount contextRef="c-111" decimals="1" id="f-647" unitRef="bcf">0</us-gaap:DerivativeNonmonetaryNotionalAmount>
    <us-gaap:DerivativeNonmonetaryNotionalAmount contextRef="c-112" decimals="2" id="f-648" unitRef="bcf">5.02</us-gaap:DerivativeNonmonetaryNotionalAmount>
    <us-gaap:DerivativeNonmonetaryNotionalAmount contextRef="c-113" decimals="1" id="f-649" unitRef="bcf">0</us-gaap:DerivativeNonmonetaryNotionalAmount>
    <us-gaap:DerivativeNonmonetaryNotionalAmount contextRef="c-114" decimals="2" id="f-650" unitRef="bcf">0.50</us-gaap:DerivativeNonmonetaryNotionalAmount>
    <ogs:Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld contextRef="c-114" decimals="-3" id="f-651" unitRef="usd">500000</ogs:Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld>
    <ogs:FairValueAssetsTransfersbetweenLevels contextRef="c-1" decimals="-3" id="f-652" unitRef="usd">0</ogs:FairValueAssetsTransfersbetweenLevels>
    <ogs:FairValueAssetsTransfersbetweenLevels contextRef="c-3" decimals="-3" id="f-653" unitRef="usd">0</ogs:FairValueAssetsTransfersbetweenLevels>
    <us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock contextRef="c-1" id="f-654">&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following tables summarize, by level within the fair value hierarchy, our derivative and other assets and liabilities that were accounted for at fair value on a recurring basis at March&#160;31, 2026 and December 31, 2025:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:45.683%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.384%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.384%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.384%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.770%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="21" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;March 31, 2026&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Level 1&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Level 2&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Netting (c)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Total&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="21" style="border-top:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;(Thousands of dollars)&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Assets:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;United States treasury notes (b)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;7,381&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;7,381&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Corporate bonds (b)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;17,971&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;17,971&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Marketable equity securities (d)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2,506&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2,506&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total assets&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;9,887&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;17,971&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;27,858&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Liabilities:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Derivative instruments - swaps (a)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:120%"&gt;(a) The fair value is included in other current assets and other current liabilities in our consolidated balance sheets.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:120%"&gt;(b) The fair value is included in other current and noncurrent assets in our consolidated balance sheets.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:120%"&gt;(c) Our over-the-counter natural gas fixed-price swaps are presented on a net basis when the right of offset exists.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:120%"&gt;(d) The fair value is included in other current assets in our consolidated balance sheets.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:45.683%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.384%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.384%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.384%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.770%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="21" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;December 31, 2025&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Level 1&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Level 2&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Netting (c)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;border-top:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Total&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="21" style="border-top:2pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;(Thousands of dollars)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Assets:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;United States treasury notes (b)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;9,329&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;9,329&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Corporate bonds (b)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;18,643&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;18,643&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Marketable equity securities (d)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;2,627&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;2,627&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total assets&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;11,956&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;18,643&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;30,599&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Liabilities:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Derivative instruments - swaps (a)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;7,309&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;7,309&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:120%"&gt;(a) The fair value is included in other current assets and other current liabilities in our consolidated balance sheets.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:120%"&gt;(b) The fair value is included in other current and noncurrent assets in our consolidated balance sheets.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:120%"&gt;(c) Our over-the-counter natural gas fixed-price swaps are presented on a net basis when the right of offset exists.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:120%"&gt;(d) The fair value is included in other current assets in our consolidated balance sheets.&lt;/span&gt;&lt;/div&gt;</us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock>
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    <us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement contextRef="c-125" decimals="-3" id="f-668" unitRef="usd">17971000</us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement>
    <us-gaap:DerivativeAssetFairValueGrossLiabilityAndObligationToReturnCashOffset contextRef="c-5" decimals="-3" id="f-669" unitRef="usd">0</us-gaap:DerivativeAssetFairValueGrossLiabilityAndObligationToReturnCashOffset>
    <us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement contextRef="c-5" decimals="-3" id="f-670" unitRef="usd">27858000</us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement>
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    <us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement contextRef="c-129" decimals="-3" id="f-675" unitRef="usd">9329000</us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement>
    <us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement contextRef="c-130" decimals="-3" id="f-676" unitRef="usd">0</us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement>
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    <us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement contextRef="c-131" decimals="-3" id="f-678" unitRef="usd">9329000</us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement>
    <us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement contextRef="c-132" decimals="-3" id="f-679" unitRef="usd">0</us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement>
    <us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement contextRef="c-133" decimals="-3" id="f-680" unitRef="usd">18643000</us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement>
    <us-gaap:DerivativeAssetFairValueGrossLiabilityAndObligationToReturnCashOffset contextRef="c-133" decimals="-3" id="f-681" unitRef="usd">0</us-gaap:DerivativeAssetFairValueGrossLiabilityAndObligationToReturnCashOffset>
    <us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement contextRef="c-134" decimals="-3" id="f-682" unitRef="usd">18643000</us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement>
    <us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement contextRef="c-135" decimals="-3" id="f-683" unitRef="usd">2627000</us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement>
    <us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement contextRef="c-136" decimals="-3" id="f-684" unitRef="usd">0</us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement>
    <us-gaap:DerivativeAssetFairValueGrossLiabilityAndObligationToReturnCashOffset contextRef="c-135" decimals="-3" id="f-685" unitRef="usd">0</us-gaap:DerivativeAssetFairValueGrossLiabilityAndObligationToReturnCashOffset>
    <us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement contextRef="c-137" decimals="-3" id="f-686" unitRef="usd">2627000</us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement>
    <us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement contextRef="c-138" decimals="-3" id="f-687" unitRef="usd">11956000</us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement>
    <us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement contextRef="c-139" decimals="-3" id="f-688" unitRef="usd">18643000</us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement>
    <us-gaap:DerivativeAssetFairValueGrossLiabilityAndObligationToReturnCashOffset contextRef="c-6" decimals="-3" id="f-689" unitRef="usd">0</us-gaap:DerivativeAssetFairValueGrossLiabilityAndObligationToReturnCashOffset>
    <us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement contextRef="c-6" decimals="-3" id="f-690" unitRef="usd">30599000</us-gaap:DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement>
    <us-gaap:DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement contextRef="c-140" decimals="-3" id="f-691" unitRef="usd">0</us-gaap:DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement>
    <us-gaap:DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement contextRef="c-141" decimals="-3" id="f-692" unitRef="usd">7309000</us-gaap:DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement>
    <us-gaap:DerivativeLiabilityFairValueGrossAssetAndRightToReclaimCashOffset contextRef="c-141" decimals="-3" id="f-693" unitRef="usd">0</us-gaap:DerivativeLiabilityFairValueGrossAssetAndRightToReclaimCashOffset>
    <us-gaap:DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement contextRef="c-142" decimals="-3" id="f-694" unitRef="usd">7309000</us-gaap:DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement>
    <us-gaap:LongTermDebtFairValue contextRef="c-5" decimals="-3" id="f-695" unitRef="usd">2500000000</us-gaap:LongTermDebtFairValue>
    <us-gaap:LongTermDebtFairValue contextRef="c-6" decimals="-3" id="f-696" unitRef="usd">2500000000</us-gaap:LongTermDebtFairValue>
    <us-gaap:VariableInterestEntityDisclosureTextBlock contextRef="c-1" id="f-697">VARIABLE INTEREST ENTITY&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;KGSS-I is a special-purpose, wholly owned subsidiary of ONE Gas that was formed for the purpose of issuing securitized bonds to recover extraordinary costs incurred by Kansas Gas Service resulting from Winter Storm Uri. KGSS-I&#x2019;s assets cannot be used to settle ONE Gas&#x2019; obligations and the holders of the Securitized Utility Tariff Bonds have no recourse against ONE Gas. The Securitized Utility Tariff Bonds have a scheduled final payment date of August 1, 2032. See Note 5 for additional information about the securitization financing.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;KGSS-I is considered to be a variable interest entity. As a result, KGSS-I is included in the consolidated financial statements of ONE Gas. No gain or loss was recognized upon initial consolidation.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following table summarizes the impact of KGSS-I on our consolidated balance sheets:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:72.438%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.530%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.767%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;March 31,&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;December 31,&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2026&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2025&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;(Thousands of dollars)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Restricted cash and cash equivalents&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;11,639&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;23,107&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Accounts receivable&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;4,403&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;4,463&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Securitized intangible asset, net&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;226,359&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;233,786&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total assets&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;242,401&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;261,356&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Current maturities of securitized utility tariff bonds, net of issuance costs&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;31,404&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;30,566&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Accounts payable&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;106&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;136&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Accrued interest&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2,217&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;5,894&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Securitized utility tariff bonds, excluding current maturities, net of discounts and issuance costs &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$4.1&#160;million&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt; and $4.3&#160;million, as of March 31, 2026 and December 31, 2025, respectively&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;206,970&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;223,020&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Paid-in capital &lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;1,680&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;1,680&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Retained earnings&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;24&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;60&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total liabilities and equity&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;242,401&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;261,356&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following table summarizes the impact of KGSS-I on our consolidated statements of income:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:72.584%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.384%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.767%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Three Months Ended&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;March 31,&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2026&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2025&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;(Thousands of dollars)&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Operating revenues&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;10,977&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;11,637&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Operating expense&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(111)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(110)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Amortization expense&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(7,427)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(7,694)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Interest income&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;137&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;148&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Interest expense&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(3,540)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(3,944)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;Income before income taxes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;36&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;37&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Income taxes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;6&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;Net income&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;36&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;43&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</us-gaap:VariableInterestEntityDisclosureTextBlock>
    <us-gaap:ScheduleOfVariableInterestEntitiesTextBlock contextRef="c-143" id="f-698">&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following table summarizes the impact of KGSS-I on our consolidated balance sheets:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:72.438%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.530%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.767%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;March 31,&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;December 31,&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2026&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2025&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;(Thousands of dollars)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Restricted cash and cash equivalents&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;11,639&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;23,107&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Accounts receivable&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;4,403&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;4,463&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Securitized intangible asset, net&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;226,359&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;233,786&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total assets&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;242,401&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;261,356&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Current maturities of securitized utility tariff bonds, net of issuance costs&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;31,404&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;30,566&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Accounts payable&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;106&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;136&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Accrued interest&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2,217&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;5,894&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Securitized utility tariff bonds, excluding current maturities, net of discounts and issuance costs &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$4.1&#160;million&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt; and $4.3&#160;million, as of March 31, 2026 and December 31, 2025, respectively&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;206,970&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;223,020&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Paid-in capital &lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;1,680&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;1,680&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Retained earnings&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;24&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;60&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Total liabilities and equity&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;242,401&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;261,356&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following table summarizes the impact of KGSS-I on our consolidated statements of income:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:72.584%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.765%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:0.384%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td style="width:1.0%"&gt;&lt;/td&gt;&lt;td style="width:11.767%"&gt;&lt;/td&gt;&lt;td style="width:0.1%"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;Three Months Ended&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;March 31,&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2026&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="border-bottom:2pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;2025&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-style:italic;font-weight:400;line-height:100%"&gt;(Thousands of dollars)&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Operating revenues&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;10,977&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;11,637&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Operating expense&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(111)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(110)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Amortization expense&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(7,427)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(7,694)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Interest income&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;137&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;148&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Interest expense&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;(3,540)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;(3,944)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;Income before income taxes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;36&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;37&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;Income taxes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;&#x2014;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;6&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;Net income&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:700;line-height:100%"&gt;36&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:0 1pt"&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:9pt;font-weight:400;line-height:100%"&gt;43&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:2pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfVariableInterestEntitiesTextBlock>
    <dei:DocumentFiscalYearFocus contextRef="c-1" id="f-699">2026</dei:DocumentFiscalYearFocus>
    <us-gaap:RestrictedCashAndCashEquivalents contextRef="c-84" decimals="-3" id="f-700" unitRef="usd">11639000</us-gaap:RestrictedCashAndCashEquivalents>
    <us-gaap:RestrictedCashAndCashEquivalents contextRef="c-85" decimals="-3" id="f-701" unitRef="usd">23107000</us-gaap:RestrictedCashAndCashEquivalents>
    <us-gaap:ReceivablesNetCurrent contextRef="c-84" decimals="-3" id="f-702" unitRef="usd">4403000</us-gaap:ReceivablesNetCurrent>
    <us-gaap:ReceivablesNetCurrent contextRef="c-85" decimals="-3" id="f-703" unitRef="usd">4463000</us-gaap:ReceivablesNetCurrent>
    <us-gaap:FiniteLivedIntangibleAssetsNet contextRef="c-84" decimals="-3" id="f-704" unitRef="usd">226359000</us-gaap:FiniteLivedIntangibleAssetsNet>
    <us-gaap:FiniteLivedIntangibleAssetsNet contextRef="c-85" decimals="-3" id="f-705" unitRef="usd">233786000</us-gaap:FiniteLivedIntangibleAssetsNet>
    <us-gaap:Assets contextRef="c-84" decimals="-3" id="f-706" unitRef="usd">242401000</us-gaap:Assets>
    <us-gaap:Assets contextRef="c-85" decimals="-3" id="f-707" unitRef="usd">261356000</us-gaap:Assets>
    <ogs:CurrentMaturitiesOfSecuritizedUtilityTariffBonds contextRef="c-84" decimals="-3" id="f-708" unitRef="usd">31404000</ogs:CurrentMaturitiesOfSecuritizedUtilityTariffBonds>
    <ogs:CurrentMaturitiesOfSecuritizedUtilityTariffBonds contextRef="c-85" decimals="-3" id="f-709" unitRef="usd">30566000</ogs:CurrentMaturitiesOfSecuritizedUtilityTariffBonds>
    <us-gaap:AccountsPayableCurrent contextRef="c-84" decimals="-3" id="f-710" unitRef="usd">106000</us-gaap:AccountsPayableCurrent>
    <us-gaap:AccountsPayableCurrent contextRef="c-85" decimals="-3" id="f-711" unitRef="usd">136000</us-gaap:AccountsPayableCurrent>
    <us-gaap:InterestPayableCurrentAndNoncurrent contextRef="c-84" decimals="-3" id="f-712" unitRef="usd">2217000</us-gaap:InterestPayableCurrentAndNoncurrent>
    <us-gaap:InterestPayableCurrentAndNoncurrent contextRef="c-85" decimals="-3" id="f-713" unitRef="usd">5894000</us-gaap:InterestPayableCurrentAndNoncurrent>
    <ogs:DiscountsAndIssuanceCostsForSecuritizedUtilityTariffBondsExcludingCurrentMaturities contextRef="c-84" decimals="-3" id="f-714" unitRef="usd">4100000</ogs:DiscountsAndIssuanceCostsForSecuritizedUtilityTariffBondsExcludingCurrentMaturities>
    <ogs:DiscountsAndIssuanceCostsForSecuritizedUtilityTariffBondsExcludingCurrentMaturities contextRef="c-85" decimals="-3" id="f-715" unitRef="usd">4300000</ogs:DiscountsAndIssuanceCostsForSecuritizedUtilityTariffBondsExcludingCurrentMaturities>
    <ogs:SecuritizedUtilityTariffBonds contextRef="c-84" decimals="-3" id="f-716" unitRef="usd">206970000</ogs:SecuritizedUtilityTariffBonds>
    <ogs:SecuritizedUtilityTariffBonds contextRef="c-85" decimals="-3" id="f-717" unitRef="usd">223020000</ogs:SecuritizedUtilityTariffBonds>
    <us-gaap:AdditionalPaidInCapital contextRef="c-84" decimals="-3" id="f-718" unitRef="usd">1680000</us-gaap:AdditionalPaidInCapital>
    <us-gaap:AdditionalPaidInCapital contextRef="c-85" decimals="-3" id="f-719" unitRef="usd">1680000</us-gaap:AdditionalPaidInCapital>
    <us-gaap:RetainedEarningsUnappropriated contextRef="c-84" decimals="-3" id="f-720" unitRef="usd">24000</us-gaap:RetainedEarningsUnappropriated>
    <us-gaap:RetainedEarningsUnappropriated contextRef="c-85" decimals="-3" id="f-721" unitRef="usd">60000</us-gaap:RetainedEarningsUnappropriated>
    <us-gaap:LiabilitiesAndStockholdersEquity contextRef="c-84" decimals="-3" id="f-722" unitRef="usd">242401000</us-gaap:LiabilitiesAndStockholdersEquity>
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