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<div style="margin-bottom:5pt;text-align:justify">In the opinion of management, the accompanying unaudited financial statements contain all adjustments necessary to present fairly, in accordance with GAAP, the financial position of SPS as of June 30, 2026 and Dec. 31, 2025; the results of SPS’ operations, including the components of net income and changes in stockholder’s equity for the three and six months ended June 30, 2026 and 2025; and SPS’ cash flows for the six months ended June 30, 2026 and 2025.</div><div style="margin-bottom:5pt;text-align:justify">All adjustments are of a normal, recurring nature, except as otherwise disclosed. Management has also evaluated the impact of events occurring after June 30, 2026 up to the date of issuance of these financial statements. These statements contain all necessary adjustments and disclosures resulting from that evaluation. The Dec. 31, 2025 balance sheet information has been derived from the audited 2025 financial statements included in the SPS Annual Report on <a href="https://www.sec.gov/ix?doc=/Archives/edgar/data/0000092521/000009252126000003/sps-20251231.htm" style="color:#0000ff;font-family:'Arial Narrow',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">Form 10-K</a> for the year ended Dec. 31, 2025. </div><div style="margin-bottom:5pt;text-align:justify">Notes to the financial statements have been prepared pursuant to the rules and regulations of the SEC for Quarterly Reports on Form 10-Q. Certain information and note disclosures normally included in financial statements prepared in accordance with GAAP on an annual basis have been condensed or omitted pursuant to such rules and regulations. For further information, refer to the financial statements and notes thereto included in the SPS Annual Report on <a href="https://www.sec.gov/ix?doc=/Archives/edgar/data/0000092521/000009252126000003/sps-20251231.htm" style="color:#0000ff;font-family:'Arial Narrow',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">Form 10-K</a> for the year ended Dec. 31, 2025, filed with the SEC on Feb. 25, 2026. </div><div style="margin-bottom:5pt;text-align:justify">Due to the seasonality of SPS’ electric sales, interim results are not necessarily an appropriate base from which to project annual results.</div>

<div style="margin-bottom:5pt;text-align:justify">The significant accounting policies set forth in Note 1 to the financial statements in the SPS Annual Report on <a href="https://www.sec.gov/ix?doc=/Archives/edgar/data/0000092521/000009252126000003/sps-20251231.htm" style="color:#0000ff;font-family:'Arial Narrow',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">Form 10-K</a> for the year ended Dec. 31, 2025 appropriately represent, in all material respects, the current status of accounting policies and are incorporated herein by reference.</div>

<div style="margin-bottom:5pt;text-align:justify">Recently Issued</div><div style="margin-bottom:5pt;margin-top:5pt;text-align:justify">Disaggregation of Income Statement Expenses — In November 2024, the FASB issued ASU 2024-03 – Expense Disaggregation Disclosures (Subtopic 220-40), which requires disclosure of additional detail for certain categories of income statement expenses. The ASU is effective for annual reporting periods beginning after Dec. 15, 2026 and interim reporting periods beginning after Dec. 15, 2027. SPS is evaluating the impact of the new disclosure guidance.</div><div style="margin-bottom:5pt;margin-top:5pt;text-align:justify">Environmental Credits — In May 2026, the FASB issued ASU 2026-02 – Environmental Credits and Environmental Credit Obligations (Topic 818), which establishes accounting and disclosure requirements for certain environmental instruments, including renewable energy credits and emissions allowances, as well as for compliance obligations that will be satisfied with such credits. The ASU is effective for annual and interim periods beginning after Dec. 15, 2027. SPS is evaluating the impact of the new accounting and disclosure guidance.</div>

<div style="text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.726%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="border-bottom:1pt solid #000000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div>3. Selected Balance Sheet Data</div></td></tr></table></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.726%"><tr><td style="width:1.0%"></td><td style="width:57.256%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.169%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.352%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.169%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.354%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">June 30, 2026</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Dec. 31, 2025</td></tr><tr><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Accounts receivable, net</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 7.75pt;text-align:left;vertical-align:bottom">Accounts receivable</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;padding:1.5pt 0;text-align:right;vertical-align:bottom">183 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;padding:1.5pt 0;text-align:right;vertical-align:bottom">169 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 7.75pt;text-align:left;vertical-align:bottom">Less allowance for bad debts</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(10)</td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(10)</td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 12.25pt;text-align:left;vertical-align:bottom">Accounts receivable, net</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">173 </td><td style="background-color:#e0e0e0;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">159 </td><td style="background-color:#e0e0e0;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.726%"><tr><td style="width:1.0%"></td><td style="width:57.256%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.169%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.352%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.169%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.354%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">June 30, 2026</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Dec. 31, 2025</td></tr><tr><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Inventories</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 7.75pt;text-align:left;vertical-align:bottom">Materials and supplies</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;padding:1.5pt 0;text-align:right;vertical-align:bottom">80 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;padding:1.5pt 0;text-align:right;vertical-align:bottom">74 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 7.75pt;text-align:left;vertical-align:bottom">Fuel</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">7 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">10 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 12.25pt;text-align:left;vertical-align:bottom">Total inventories</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">87 </td><td style="background-color:#e0e0e0;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">84 </td><td style="background-color:#e0e0e0;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="margin-bottom:3pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.726%"><tr><td style="width:1.0%"></td><td style="width:57.256%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.169%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.352%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.169%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.354%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">June 30, 2026</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Dec. 31, 2025</td></tr><tr><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Property, plant and equipment, net</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 7.75pt;text-align:left;vertical-align:bottom">Electric plant</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;padding:1.5pt 0;text-align:right;vertical-align:bottom">13,100 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;padding:1.5pt 0;text-align:right;vertical-align:bottom">12,210 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:6.75pt">Plant to be retired (a)</div></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">144 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">162 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 7.75pt;text-align:left;vertical-align:bottom">Construction work in progress</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">1,282 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">1,117 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 19pt;text-align:left;vertical-align:bottom">Total property, plant and equipment</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">14,526 </td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">13,489 </td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 7.75pt;text-align:left;vertical-align:bottom">Less accumulated depreciation</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(3,207)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(3,063)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 12.25pt;text-align:left;vertical-align:bottom">Property, plant and equipment, net</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">11,319 </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">10,426 </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="padding-left:18pt;text-align:justify;text-indent:-18pt">(a)Amounts include Tolk Unit 1 and 2. Amounts are reported net of accumulated depreciation.</div>

<div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.726%"><tr><td style="width:1.0%"></td><td style="width:57.256%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.169%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.352%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.169%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.354%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">June 30, 2026</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Dec. 31, 2025</td></tr><tr><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Accounts receivable, net</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 7.75pt;text-align:left;vertical-align:bottom">Accounts receivable</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;padding:1.5pt 0;text-align:right;vertical-align:bottom">183 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;padding:1.5pt 0;text-align:right;vertical-align:bottom">169 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 7.75pt;text-align:left;vertical-align:bottom">Less allowance for bad debts</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(10)</td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(10)</td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 12.25pt;text-align:left;vertical-align:bottom">Accounts receivable, net</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">173 </td><td style="background-color:#e0e0e0;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">159 </td><td style="background-color:#e0e0e0;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div>

183000000

169000000

10000000

173000000

159000000

<div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.726%"><tr><td style="width:1.0%"></td><td style="width:57.256%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.169%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.352%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.169%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.354%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">June 30, 2026</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Dec. 31, 2025</td></tr><tr><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Inventories</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 7.75pt;text-align:left;vertical-align:bottom">Materials and supplies</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;padding:1.5pt 0;text-align:right;vertical-align:bottom">80 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;padding:1.5pt 0;text-align:right;vertical-align:bottom">74 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 7.75pt;text-align:left;vertical-align:bottom">Fuel</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">7 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">10 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 12.25pt;text-align:left;vertical-align:bottom">Total inventories</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">87 </td><td style="background-color:#e0e0e0;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">84 </td><td style="background-color:#e0e0e0;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div>

80000000

74000000

7000000

10000000

87000000

84000000

13100000000

12210000000

144000000 162000000

1282000000

1117000000

14526000000

13489000000

3207000000

3063000000

11319000000

10426000000

<div style="margin-bottom:5pt;text-align:justify">Short-Term Borrowings</div><div style="margin-bottom:5pt;text-align:justify">SPS meets its short-term liquidity requirements primarily through the issuance of commercial paper and borrowings under its credit facility and the money pool.</div><div style="margin-bottom:5pt;text-align:justify">Money Pool — Xcel Energy Inc. and its utility subsidiaries have established a money pool arrangement that allows for short-term investments in and borrowings between the utility subsidiaries. Xcel Energy Inc. may make investments in the utility subsidiaries at market-based interest rates; however, the money pool arrangement does not allow the utility subsidiaries to make investments in Xcel Energy Inc.</div><div style="text-align:justify">Money pool borrowings:</div><div style="margin-bottom:5pt;margin-top:5pt;text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:50.539%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.166%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:24.856%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.166%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.573%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Amounts in Millions, Except Interest Rates)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Three Months Ended June 30, 2026</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Year Ended Dec. 31, 2025</td></tr><tr><td colspan="3" style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Borrowing limit</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td colspan="2" style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 7pt 1.5pt 0;text-align:right;vertical-align:bottom">100</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">100 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Amount outstanding at period end</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">62 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Average amount outstanding</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">97 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">31 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Maximum amount outstanding</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">100 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">100 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Weighted average interest rate, computed on a daily basis</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">3.68 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom">%</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">4.19 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom">%</td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Weighted average interest rate at period end</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:1.5pt 7pt 1.5pt 1pt;text-align:right;vertical-align:bottom">N/A</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">3.88 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="text-align:justify">Commercial Paper — Commercial paper outstanding:</div><div style="margin-bottom:5pt;margin-top:5pt;text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:49.446%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.166%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:25.949%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.166%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.573%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Amounts in Millions, Except Interest Rates)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Three Months Ended June 30, 2026</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Year Ended Dec. 31, 2025</td></tr><tr><td colspan="3" style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Borrowing limit</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">600 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">600 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Amount outstanding at period end</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">45 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">220 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Average amount outstanding</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">111 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">97 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Maximum amount outstanding</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">195 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">314 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Weighted average interest rate, computed on a daily basis</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">4.08 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom">%</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">4.51 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom">%</td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Weighted average interest rate at period end</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">4.10 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">3.93 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="margin-bottom:5pt;text-align:justify">Revolving Credit Facility — In order to issue its commercial paper, SPS must have a revolving credit facility equal to or greater than the commercial paper borrowing limit and cannot issue commercial paper exceeding available capacity under this credit facility. The credit facility provides short-term financing in the form of notes payable to banks, letters of credit and back-up support for commercial paper borrowings.</div><div style="margin-bottom:5pt;text-align:justify">SPS has the right to request an extension of the revolving credit facility termination date for two additional one-year periods. All extension requests are subject to majority bank group approval.</div><div style="text-align:justify">As of June 30, 2026, SPS had the following committed revolving credit facility available (in millions of dollars):</div><div style="margin-top:3pt;text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:31.413%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.166%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:31.140%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.166%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:31.415%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center">Credit Facility (a)</div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center">Drawn (b)</div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Available</td></tr><tr><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">600 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">45 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">555 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="padding-left:18pt;text-align:justify;text-indent:-18pt">(a)Expires in December 2029.</div><div style="margin-bottom:5pt;padding-left:18pt;text-align:justify;text-indent:-18pt">(b)Includes outstanding commercial paper and letters of credit.</div><div style="margin-bottom:5pt;text-align:justify">All credit facility bank borrowings, outstanding letters of credit and outstanding commercial paper reduce the available capacity under the credit facility. SPS had no direct advances on the credit facility outstanding as of June 30, 2026 and Dec. 31, 2025.</div><div style="margin-bottom:5pt;text-align:justify">Letters of Credit — SPS uses letters of credit, generally with terms of one year, to provide financial guarantees for certain obligations. At both June 30, 2026 and Dec. 31, 2025, there were no letters of credit outstanding under the credit facility. </div><div style="margin-bottom:5pt;text-align:justify">Additionally, in March 2026, SPS entered into an uncommitted letter of credit agreement with an overall limit of $150 million to provide additional letter of credit capacity outside of the revolving credit facility. As of June 30, 2026, no letters of credit were outstanding under this continuing letter of credit agreement.</div><div style="margin-bottom:5pt;text-align:justify">Long-Term Borrowings</div><div style="margin-bottom:5pt;text-align:justify">During the six months ended June 30, 2026, SPS issued $650 million in aggregate principal amount of 5.30% First Mortgage Bonds, Series No. 13 due August 15, 2036 and $550 million in aggregate principal amount of 5.875% First Mortgage Bonds, Series No. 14 due August 15, 2056.</div><div style="margin-bottom:5pt;text-align:justify">Xcel Energy Inc.’s Purchase of SPS’ First Mortgage Bonds — During the six months ended June 30, 2026, Xcel Energy Inc. purchased $4 million in aggregate principal amounts of SPS’ 3.70% First Mortgage Bonds due August 15, 2047, 4.40% First Mortgage Bonds Series due November 15, 2048 and 3.75% First Mortgage Bonds due June 15, 2049, for $3 million. Bonds purchased by Xcel Energy Inc. are reported in long-term debt - related parties on SPS’ balance sheet.</div>

<div style="text-align:justify">Money pool borrowings:</div><div style="margin-bottom:5pt;margin-top:5pt;text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:50.539%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.166%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:24.856%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.166%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.573%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Amounts in Millions, Except Interest Rates)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Three Months Ended June 30, 2026</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Year Ended Dec. 31, 2025</td></tr><tr><td colspan="3" style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Borrowing limit</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td colspan="2" style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 7pt 1.5pt 0;text-align:right;vertical-align:bottom">100</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">100 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Amount outstanding at period end</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">62 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Average amount outstanding</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">97 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">31 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Maximum amount outstanding</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">100 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">100 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Weighted average interest rate, computed on a daily basis</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">3.68 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom">%</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">4.19 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom">%</td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Weighted average interest rate at period end</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:1.5pt 7pt 1.5pt 1pt;text-align:right;vertical-align:bottom">N/A</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">3.88 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div>

100000000

62000000

97000000

31000000

100000000

0.0368

0.0419

0.0388

Commercial paper outstanding:<div style="margin-bottom:5pt;margin-top:5pt;text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:49.446%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.166%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:25.949%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.166%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.573%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Amounts in Millions, Except Interest Rates)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Three Months Ended June 30, 2026</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Year Ended Dec. 31, 2025</td></tr><tr><td colspan="3" style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Borrowing limit</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">600 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">600 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Amount outstanding at period end</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">45 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">220 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Average amount outstanding</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">111 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">97 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Maximum amount outstanding</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">195 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">314 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Weighted average interest rate, computed on a daily basis</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">4.08 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom">%</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">4.51 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom">%</td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Weighted average interest rate at period end</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">4.10 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">3.93 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div>

600000000

45000000

220000000

111000000

97000000

195000000

314000000

0.0408

0.0451

0.0410

0.0393

<div style="text-align:justify">As of June 30, 2026, SPS had the following committed revolving credit facility available (in millions of dollars):</div><div style="margin-top:3pt;text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:31.413%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.166%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:31.140%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.166%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:31.415%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center">Credit Facility (a)</div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center">Drawn (b)</div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Available</td></tr><tr><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">600 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">45 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">555 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="padding-left:18pt;text-align:justify;text-indent:-18pt">(a)Expires in December 2029.</div><div style="margin-bottom:5pt;padding-left:18pt;text-align:justify;text-indent:-18pt">(b)Includes outstanding commercial paper and letters of credit.</div>

600000000

45000000

555000000

150000000

650000000

0.0530

550000000

0.05875

4000000

0.0370

0.0440

0.0375

3000000

<div style="text-align:justify">Revenue is classified by the type of goods/services rendered and market/customer type. SPS’ operating revenues consisted of the following:</div><div style="margin-bottom:5pt;text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:59.282%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.892%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:17.479%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.166%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:17.481%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Three Months Ended June 30</td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2026</td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2025</td></tr><tr><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Major revenue types</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt 1.5pt 7.75pt;text-align:left;vertical-align:bottom">Revenue from contracts with customers:</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 12.25pt;text-align:left;vertical-align:bottom">Residential</td><td colspan="3" style="background-color:#dddddd;padding:0 1pt"></td><td style="background-color:#dddddd;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dddddd;padding:1.5pt 0;text-align:right;vertical-align:bottom">71 </td><td style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dddddd;padding:0 1pt"></td><td style="background-color:#dddddd;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dddddd;padding:1.5pt 0;text-align:right;vertical-align:bottom">95 </td><td style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:11.25pt">C&I (a)</div></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">194 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">289 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 12.25pt;text-align:left;vertical-align:bottom">Other</td><td colspan="3" style="background-color:#dddddd;padding:0 1pt"></td><td colspan="2" style="background-color:#dddddd;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">10 </td><td style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dddddd;padding:0 1pt"></td><td colspan="2" style="background-color:#dddddd;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">12 </td><td style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 19pt;text-align:left;vertical-align:bottom">Total retail</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">275 </td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">396 </td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 12.25pt;text-align:left;vertical-align:bottom">Wholesale</td><td colspan="3" style="background-color:#dddddd;padding:0 1pt"></td><td colspan="2" style="background-color:#dddddd;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">19 </td><td style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dddddd;padding:0 1pt"></td><td colspan="2" style="background-color:#dddddd;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">23 </td><td style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 12.25pt;text-align:left;vertical-align:bottom">Transmission</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">86 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">78 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 12.25pt;text-align:left;vertical-align:bottom">Other</td><td colspan="3" style="background-color:#dddddd;padding:0 1pt"></td><td colspan="2" style="background-color:#dddddd;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">2 </td><td style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dddddd;padding:0 1pt"></td><td colspan="2" style="background-color:#dddddd;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">1 </td><td style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 19pt;text-align:left;vertical-align:bottom">Total revenue from contracts with customers</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">382 </td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">498 </td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 19pt;text-align:left;vertical-align:bottom">Alternative revenue and other</td><td colspan="3" style="background-color:#dddddd;padding:0 1pt"></td><td colspan="2" style="background-color:#dddddd;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">7 </td><td style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dddddd;padding:0 1pt"></td><td colspan="2" style="background-color:#dddddd;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">10 </td><td style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 25.75pt;text-align:left;vertical-align:bottom">Total revenues</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">389 </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">508 </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="padding-left:18pt;text-align:justify;text-indent:-18pt">(a)For the three months ended June 30, 2026 and 2025, revenues from one C&I customer represented approximately 10.2% and 10.1% of total revenues, respectively.</div><div style="text-align:justify"> <table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:59.282%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.892%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:17.479%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.166%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:17.481%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Six Months Ended June 30</td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2026</td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2025</td></tr><tr><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Major revenue types</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt 1.5pt 7.75pt;text-align:left;vertical-align:bottom">Revenue from contracts with customers:</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 12.25pt;text-align:left;vertical-align:bottom">Residential</td><td colspan="3" style="background-color:#dddddd;padding:0 1pt"></td><td style="background-color:#dddddd;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dddddd;padding:1.5pt 0;text-align:right;vertical-align:bottom">169 </td><td style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dddddd;padding:0 1pt"></td><td style="background-color:#dddddd;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dddddd;padding:1.5pt 0;text-align:right;vertical-align:bottom">209 </td><td style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 12.25pt;text-align:left;vertical-align:bottom">C&I</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">492 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">577 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 12.25pt;text-align:left;vertical-align:bottom">Other</td><td colspan="3" style="background-color:#dddddd;padding:0 1pt"></td><td colspan="2" style="background-color:#dddddd;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">21 </td><td style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dddddd;padding:0 1pt"></td><td colspan="2" style="background-color:#dddddd;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">23 </td><td style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 19pt;text-align:left;vertical-align:bottom">Total retail</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">682 </td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">809 </td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 12.25pt;text-align:left;vertical-align:bottom">Wholesale</td><td colspan="3" style="background-color:#dddddd;padding:0 1pt"></td><td colspan="2" style="background-color:#dddddd;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">49 </td><td style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dddddd;padding:0 1pt"></td><td colspan="2" style="background-color:#dddddd;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">48 </td><td style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 12.25pt;text-align:left;vertical-align:bottom">Transmission</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">170 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">154 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 12.25pt;text-align:left;vertical-align:bottom">Other</td><td colspan="3" style="background-color:#dddddd;padding:0 1pt"></td><td colspan="2" style="background-color:#dddddd;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">3 </td><td style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dddddd;padding:0 1pt"></td><td colspan="2" style="background-color:#dddddd;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">2 </td><td style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 19pt;text-align:left;vertical-align:bottom">Total revenue from contracts with customers</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">904 </td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">1,013 </td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 19pt;text-align:left;vertical-align:bottom">Alternative revenue and other</td><td colspan="3" style="background-color:#dddddd;padding:0 1pt"></td><td colspan="2" style="background-color:#dddddd;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">15 </td><td style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dddddd;padding:0 1pt"></td><td colspan="2" style="background-color:#dddddd;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">16 </td><td style="background-color:#dddddd;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 25.75pt;text-align:left;vertical-align:bottom">Total revenues</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">919 </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">1,029 </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div>

71000000

95000000

194000000

289000000

10000000

12000000

275000000

396000000

19000000

23000000

86000000

78000000

2000000

1000000

382000000

498000000

7000000

10000000

389000000

508000000

169000000

209000000

492000000

577000000

21000000

23000000

682000000

809000000

49000000

48000000

170000000

154000000

3000000

2000000

904000000

1013000000

15000000

16000000

919000000

1029000000

<div style="text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="border-bottom:1pt solid #000000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:5pt;padding-left:18pt;text-indent:-18pt">6. Income Taxes</div></td></tr></table></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:justify">Total income tax expense from operations differs from the amount computed by applying the statutory federal income tax rate to income before income tax expense. </div><div style="text-align:justify">Effective income tax reconciliation:</div><div style="text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:98.907%"><tr><td style="width:1.0%"></td><td style="width:56.358%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.904%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:19.065%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.904%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:19.069%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Six Months Ended June 30</td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2026</td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2025</td></tr><tr><td colspan="3" style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Income before income taxes (domestic)</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">163 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">123 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr style="height:12pt"><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Federal statutory rate impact</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">34 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">26 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Decreases) increases in tax from:</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 7pt;text-align:left;vertical-align:bottom">Tax credits</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:12pt">PTCs (a)</div></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(72)</td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(61)</td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:6.75pt">Regulatory adjustments (b)</div></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 13pt;text-align:left;vertical-align:bottom">AFUDC equity</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(7)</td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(2)</td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 13.75pt;text-align:left;vertical-align:bottom">Plant related excess deferred taxes</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(3)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(4)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 13.75pt;text-align:left;vertical-align:bottom">Other</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">1 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">1 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:6.75pt">State income taxes, net of federal tax effect (c)</div></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">3 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">2 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 7.75pt;text-align:left;vertical-align:bottom">Other</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">1 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Income tax benefit</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">(44)</td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">(37)</td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="margin-bottom:3pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:98.907%"><tr><td style="width:1.0%"></td><td style="width:56.358%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.904%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:19.065%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.904%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:19.069%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Six Months Ended June 30</td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2026</td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2025</td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Federal statutory rate</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">21.0 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom">%</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">21.0 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom">%</td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Decreases) increases in tax from:</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 7pt;text-align:left;vertical-align:bottom">Tax credits</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:12pt">PTCs (a)</div></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(44.2)</td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(49.7)</td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 13.75pt;text-align:left;vertical-align:bottom">Other</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(0.2)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(0.3)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:6.75pt">Regulatory adjustments (b)</div></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 13pt;text-align:left;vertical-align:bottom">AFUDC equity</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(4.2)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(1.5)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 13.75pt;text-align:left;vertical-align:bottom">Plant related excess deferred taxes</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(1.9)</td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(3.0)</td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 13.75pt;text-align:left;vertical-align:bottom">Other</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">0.6 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">0.8 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:6.75pt">State income taxes, net of federal tax effect (c)</div></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">1.9 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">1.8 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 7.75pt;text-align:left;vertical-align:bottom">Other</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">— </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">0.8 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Effective income tax rate</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(27.0)</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom">%</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(30.1)</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom">%</td></tr></table></div><div style="padding-left:18pt;text-align:justify;text-indent:-18pt">(a)Wind PTCs (net of transfer discounts) are generally credited to customers (reduction to revenue) and do not materially impact earnings.</div><div style="padding-left:18pt;text-align:justify;text-indent:-18pt">(b)Regulatory adjustments primarily relate to the credit of plant related excess deferred taxes to customers for tax rate changes as well as the capitalization of AFUDC equity for book purposes only. Income tax benefits associated with the credit of excess deferred taxes are offset by corresponding revenue reductions.</div>(c)State and local income taxes are primarily New Mexico state taxes.

<div style="text-align:justify">Effective income tax reconciliation:</div><div style="text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:98.907%"><tr><td style="width:1.0%"></td><td style="width:56.358%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.904%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:19.065%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.904%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:19.069%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Six Months Ended June 30</td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2026</td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2025</td></tr><tr><td colspan="3" style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Income before income taxes (domestic)</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">163 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">123 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr style="height:12pt"><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Federal statutory rate impact</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">34 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">26 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Decreases) increases in tax from:</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 7pt;text-align:left;vertical-align:bottom">Tax credits</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:12pt">PTCs (a)</div></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(72)</td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(61)</td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:6.75pt">Regulatory adjustments (b)</div></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 13pt;text-align:left;vertical-align:bottom">AFUDC equity</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(7)</td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(2)</td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 13.75pt;text-align:left;vertical-align:bottom">Plant related excess deferred taxes</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(3)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(4)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 13.75pt;text-align:left;vertical-align:bottom">Other</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">1 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">1 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:6.75pt">State income taxes, net of federal tax effect (c)</div></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">3 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">2 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 7.75pt;text-align:left;vertical-align:bottom">Other</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">1 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Income tax benefit</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">(44)</td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">(37)</td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="margin-bottom:3pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:98.907%"><tr><td style="width:1.0%"></td><td style="width:56.358%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.904%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:19.065%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.904%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:19.069%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Six Months Ended June 30</td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2026</td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2025</td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Federal statutory rate</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">21.0 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom">%</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">21.0 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom">%</td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Decreases) increases in tax from:</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 7pt;text-align:left;vertical-align:bottom">Tax credits</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:12pt">PTCs (a)</div></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(44.2)</td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(49.7)</td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 13.75pt;text-align:left;vertical-align:bottom">Other</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(0.2)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(0.3)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:6.75pt">Regulatory adjustments (b)</div></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 13pt;text-align:left;vertical-align:bottom">AFUDC equity</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(4.2)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(1.5)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 13.75pt;text-align:left;vertical-align:bottom">Plant related excess deferred taxes</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(1.9)</td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(3.0)</td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 13.75pt;text-align:left;vertical-align:bottom">Other</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">0.6 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">0.8 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:6.75pt">State income taxes, net of federal tax effect (c)</div></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">1.9 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">1.8 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 7.75pt;text-align:left;vertical-align:bottom">Other</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">— </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">0.8 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Effective income tax rate</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(27.0)</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom">%</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(30.1)</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom">%</td></tr></table></div><div style="padding-left:18pt;text-align:justify;text-indent:-18pt">(a)Wind PTCs (net of transfer discounts) are generally credited to customers (reduction to revenue) and do not materially impact earnings.</div><div style="padding-left:18pt;text-align:justify;text-indent:-18pt">(b)Regulatory adjustments primarily relate to the credit of plant related excess deferred taxes to customers for tax rate changes as well as the capitalization of AFUDC equity for book purposes only. Income tax benefits associated with the credit of excess deferred taxes are offset by corresponding revenue reductions.</div>(c)State and local income taxes are primarily New Mexico state taxes.

163000000

123000000

34000000

26000000

72000000

61000000

-7000000 -2000000 -3000000 -4000000 1000000 1000000

3000000

2000000

1000000

-44000000

-37000000

0.210

0.442

0.497

0.002

0.003

-0.042 -0.015 -0.019 -0.030 0.006 0.008

0.019

0.018

0.008

-0.270

-0.301

<div style="margin-bottom:5pt">Fair Value Measurements</div><div style="margin-bottom:5pt;text-align:justify">Accounting guidance for fair value measurements and disclosures provides a hierarchical framework for disclosing the observability of the inputs utilized in measuring assets and liabilities at fair value. </div><div style="padding-left:18pt;text-align:justify;text-indent:-18pt">•Level 1 — Quoted prices are available in active markets for identical assets or liabilities as of the reporting date. The types of assets and liabilities included in Level 1 are actively traded instruments with observable actual trading prices.</div><div style="padding-left:18pt;text-align:justify;text-indent:-18pt">•Level 2 — Pricing inputs are other than actual trading prices in active markets but are either directly or indirectly observable as of the reporting date. The types of assets and liabilities included in Level 2 are typically either comparable to actively traded securities or contracts or priced with models using highly observable inputs.</div><div style="margin-bottom:5pt;padding-left:18pt;text-align:justify;text-indent:-18pt">•Level 3 — Significant inputs to pricing have little or no observability as of the reporting date. The types of assets and liabilities included in Level 3 include those valued with models requiring significant judgment or estimation.</div><div style="margin-bottom:5pt;text-align:justify">Specific valuation methods include:</div><div style="margin-bottom:5pt;text-align:justify">Interest rate derivatives — Fair values of interest rate derivatives are based on broker quotes that utilize current market interest rate forecasts.</div><div style="margin-bottom:5pt;text-align:justify">Commodity derivatives — Methods used to measure the fair value of commodity derivative forwards and options utilize forward prices and volatilities, as well as pricing adjustments for specific delivery locations, and are generally assigned a Level 2 classification. When contracts relate to inactive delivery locations or extend to periods beyond those readily observable on active exchanges, the significance of the use of less observable inputs on a valuation is evaluated, and may result in Level 3 classification.</div><div style="margin-bottom:5pt;text-align:justify">Electric commodity derivatives held by SPS include transmission congestion instruments, generally referred to as FTRs. FTRs purchased from an RTO are financial instruments that entitle or obligate the holder to monthly revenues or charges based on transmission congestion across a given transmission path. </div><div style="margin-bottom:5pt;text-align:justify">The values of these instruments are derived from, and designed to offset, the costs of transmission congestion. In addition to overall transmission load, congestion is also influenced by the operating schedules of power plants and the consumption of electricity pertinent to a given transmission path. Unplanned plant outages, scheduled plant maintenance, changes in the relative costs of fuels used in generation, weather and overall changes in demand for electricity can each impact the operating schedules of the power plants on the transmission grid and the value of these instruments. </div><div style="margin-bottom:5pt;text-align:justify">FTRs are recognized at fair value and adjusted each period prior to settlement. Given the limited observability of certain variables underlying the reported auction values of FTRs, these fair value measurements have been assigned a Level 3 classification. </div><div style="margin-bottom:5pt;text-align:justify">Net congestion costs, including the impact of FTR settlements, are shared through fuel and purchased energy cost recovery mechanisms. As such, the fair value of the unsettled instruments (i.e., derivative asset or liability) is offset/deferred as a regulatory asset or liability.</div><div style="margin-bottom:5pt;margin-top:5pt;text-align:justify">Derivative Activities and Fair Value Measurements</div><div style="margin-bottom:5pt;text-align:justify">SPS enters into derivative instruments, including forward contracts, for trading purposes and to manage risk in connection with changes in interest rates and utility commodity prices.</div><div style="width:100.000%"><div style="display:inline-block;vertical-align:top;width:48.412%"><div style="margin-bottom:5pt;text-align:justify">Interest Rate Derivatives — SPS enters into contracts that effectively fix the interest rate on a specified principal amount of a hypothetical future debt issuance. These financial swaps net settle based on changes in a specified benchmark interest rate, acting as a hedge of changes in market interest rates that will impact specified anticipated debt issuances. These derivative instruments are designated as cash flow hedges for accounting purposes, with changes in fair value prior to occurrence of the hedged transactions recorded as other comprehensive income. </div><div style="margin-bottom:5pt;text-align:justify">As of June 30, 2026, accumulated other comprehensive loss related to interest rate derivatives included immaterial net losses expected to be reclassified into earnings during the next 12 months as the hedged transactions impact earnings. As of June 30, 2026, SPS had no unsettled interest swaps outstanding.</div><div style="margin-bottom:5pt;text-align:justify">Wholesale and Commodity Trading — SPS conducts various wholesale and commodity trading activities, including the purchase and sale of electric capacity, energy and energy-related instruments, including derivatives. SPS is allowed to conduct these activities within guidelines and limitations as approved by its risk management committee, comprised of management personnel not directly involved in the activities governed by this policy.</div><div style="margin-bottom:5pt;text-align:justify">Results of derivative instrument transactions entered into for trading purposes are presented in the statements of income as electric revenues, net of any sharing with customers. These activities are not intended to mitigate commodity price risk associated with regulated electric operations. Sharing of these margins is determined through state regulatory proceedings as well as the operation of the FERC-approved joint operating agreement.</div><div style="margin-bottom:5pt;text-align:justify">Commodity Derivatives — SPS enters into derivative instruments to manage variability of future cash flows from changes in commodity prices in its electric utility operations. This could include the purchase or sale of energy or energy-related products and FTRs. </div><div style="margin-bottom:5pt;text-align:justify">The most significant derivative positions outstanding at June 30, 2026 for this purpose relate to FTR instruments administered by SPP. These instruments are intended to offset the impacts of transmission system congestion.</div><div style="margin-bottom:5pt;text-align:justify">When SPS enters into derivative instruments that mitigate commodity price risk on behalf of electric customers, the instruments are not typically designated as qualifying hedging transactions. The classification of unrealized losses or gains on these instruments as a regulatory asset or liability, if applicable, is based on approved regulatory recovery mechanisms. </div><div style="margin-bottom:5pt;text-align:justify">As of June 30, 2026, SPS had no commodity contracts designated as cash flow hedges. </div><div style="margin-bottom:5pt;text-align:justify">Gross notional amounts of FTRs:</div><div style="text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:45.894%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.166%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:24.036%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.166%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:24.038%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div>Amounts in Millions (a)</div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">June 30, 2026</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Dec. 31, 2025</td></tr><tr><td colspan="3" style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">MWh of electricity</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">15 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">7 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="margin-bottom:5pt;padding-left:18pt;text-align:justify;text-indent:-18pt">(a)Not reflective of net positions in the underlying commodities.</div><div style="margin-bottom:5pt;text-align:justify">Consideration of Credit Risk and Concentrations — SPS continuously monitors the creditworthiness of counterparties to its interest rate derivatives and commodity derivative contracts prior to settlement, and assesses each counterparty’s ability to perform on the transactions set forth in the contracts. Impact of credit risk was immaterial to the fair value of unsettled commodity derivatives presented on the balance sheets.</div><div style="margin-bottom:5pt;text-align:justify">SPS often has significant concentrations of credit risk with particular entities or industries in its wholesale, trading and non-trading commodity activities. </div></div><div style="display:inline-block;max-width:3.174%;min-width:2.174%;vertical-align:top"></div><div style="display:inline-block;vertical-align:top;width:48.414%"><div style="margin-bottom:5pt;text-align:justify">As of June 30, 2026, one of the four most significant counterparties for these activities, comprising $5 million, or 18%, of this credit exposure, had investment grade credit ratings from S&P Global Ratings, Moody’s Investor Services or Fitch Ratings. </div><div style="margin-bottom:5pt;text-align:justify">Three of the four most significant counterparties, comprising $23 million, or 75%, of this credit exposure, were not rated by external ratings agencies, but based on SPS’ internal analysis, had credit quality consistent with investment grade. </div><div style="margin-bottom:5pt;text-align:justify">All four of these counterparties are municipal or cooperative electric entities, RTOs or other utilities.</div><div style="margin-bottom:5pt;text-align:justify">Recurring Derivative Fair Value Measurements</div><div style="text-align:justify">Impact of derivative activity:</div><div style="text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:72.943%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.892%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="width:1.0%"></td><td style="width:23.765%"></td><td style="width:0.1%"></td></tr><tr><td colspan="9" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Pre-Tax Fair Value Gains (Losses) Recognized During the Period in:</td></tr><tr><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Regulatory Assets and Liabilities</td></tr><tr><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Three Months Ended June 30, 2026</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Other derivative instruments:</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 7pt;text-align:left;vertical-align:middle">Electric commodity</td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">(59)</td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 19pt;text-align:left;vertical-align:middle">Total</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">(59)</td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr style="height:5pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Six Months Ended June 30, 2026</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Other derivative instruments:</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 7pt;text-align:left;vertical-align:middle">Electric commodity</td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">(71)</td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 19pt;text-align:left;vertical-align:middle">Total</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">(71)</td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr style="height:5pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Three Months Ended June 30, 2025</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Other derivative instruments:</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 7pt;text-align:left;vertical-align:middle">Electric commodity</td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">12 </td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 19pt;text-align:left;vertical-align:middle">Total</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">12 </td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr style="height:5pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Six Months Ended June 30, 2025</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Other derivative instruments:</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 7pt;text-align:left;vertical-align:middle">Electric commodity</td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">20 </td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 19pt;text-align:left;vertical-align:middle">Total</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">20 </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.726%"><tr><td style="width:1.0%"></td><td style="width:67.667%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.895%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="width:1.0%"></td><td style="width:24.653%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:3.285%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr style="height:12pt"><td colspan="9" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Pre-Tax (Gains) Losses Reclassified into Income During the Period from:</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr style="height:20pt"><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Regulatory Assets and Liabilities</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Three Months Ended June 30, 2026</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Other derivative instruments:</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 7pt;text-align:left;vertical-align:middle">Electric commodity</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;padding:1.5pt 0;text-align:right;vertical-align:bottom">18 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div>(a)</div></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 19pt;text-align:left;vertical-align:middle">Total</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">18 </td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr style="height:5pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Six Months Ended June 30, 2026</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Other derivative instruments:</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 7pt;text-align:left;vertical-align:middle">Electric commodity</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;padding:1.5pt 0;text-align:right;vertical-align:bottom">21 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div>(a)</div></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 19pt;text-align:left;vertical-align:middle">Total</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">21 </td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr style="height:5pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Three Months Ended June 30, 2025</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 7pt;text-align:left;vertical-align:middle">Electric commodity</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;padding:1.5pt 0;text-align:right;vertical-align:bottom">(19)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div>(a)</div></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 19pt;text-align:left;vertical-align:middle">Total</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">(19)</td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr style="height:5pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Six Months Ended June 30, 2025</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Other derivative instruments:</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 7pt;text-align:left;vertical-align:middle">Electric commodity</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;padding:1.5pt 0;text-align:right;vertical-align:bottom">(29)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div>(a)</div></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 19pt;text-align:left;vertical-align:middle">Total</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">(29)</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr></table></div><div style="margin-bottom:5pt;padding-left:18pt;text-align:justify;text-indent:-18pt">(a)Recorded to electric fuel and purchased power. These derivative settlement gains and losses are shared with electric customers through fuel and purchased energy cost-recovery mechanisms, and reclassified out of income as regulatory assets or liabilities, as appropriate. FTR settlements are shared with customers and do not have a material impact on net income. Presented amounts reflect changes in fair value between auction and settlement dates, but exclude the original auction fair value.</div></div></div><div style="text-align:justify">SPS had no derivative instruments designated as fair value hedges during the three months ended June 30, 2026 and 2025. </div><div style="margin-bottom:5pt;margin-top:5pt;text-align:justify">Derivative assets and liabilities measured at fair value on a recurring basis were as follows:</div><div style="margin-bottom:5pt;margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.470%"><tr><td style="width:1.0%"></td><td style="width:27.091%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.464%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.219%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.464%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.219%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.464%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.219%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.464%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.219%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.464%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.219%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.464%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.219%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.464%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.219%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.464%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.219%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.464%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.219%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.464%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.219%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.464%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.219%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.464%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.232%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="33" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">June 30, 2026</td><td colspan="3" style="padding:0 1pt"></td><td colspan="33" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Dec. 31, 2025</td></tr><tr style="height:15pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="15" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Fair Value</td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" rowspan="2" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Fair Value Total</td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" rowspan="2" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center">Netting (a)</div></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" rowspan="2" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Total</td><td colspan="3" style="padding:0 1pt"></td><td colspan="15" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Fair Value</td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" rowspan="2" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Fair Value Total</td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" rowspan="2" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center">Netting (a)</div></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" rowspan="2" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Total</td></tr><tr style="height:12pt"><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Level 1</td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Level 2</td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Level 3</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Level 1</td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Level 2</td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Level 3</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:left;vertical-align:middle">Current derivative assets</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:middle">Other derivative instruments:</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 7.75pt;text-align:left;vertical-align:middle">Electric commodity</td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">87 </td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">87 </td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">87 </td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">79 </td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">79 </td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">79 </td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 19pt;text-align:left;vertical-align:middle">Total current derivative assets</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">87 </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">87 </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">87 </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">79 </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">79 </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">79 </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr></table></div><div style="margin-bottom:5pt;padding-left:18pt;text-align:justify;text-indent:-18pt">(a)SPS nets derivative instruments and related collateral on its balance sheet when supported by a legally enforceable master netting agreement. At June 30, 2026 and Dec. 31, 2025, derivative assets and liabilities include no obligations to return cash collateral or rights to reclaim cash collateral. Counterparty netting amounts presented exclude settlement receivables and payables and non-derivative amounts that may be subject to the same master netting agreements. </div><div>Changes in Level 3 commodity derivatives:</div><div style="text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.726%"><tr><td style="width:1.0%"></td><td style="width:55.064%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.169%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:19.447%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.169%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:19.451%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Three Months Ended June 30</td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2026</td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2025</td></tr><tr><td colspan="3" style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Balance at April 1</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">132 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">103 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:6.75pt">Purchases (a)</div></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">46 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">132 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:6.75pt">Settlements (a)</div></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(37)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(74)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 7.75pt;text-align:left;vertical-align:bottom">Net transactions recorded during the period:</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:18pt">Net (losses) gains recognized as regulatory assets and liabilities (a)</div></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(54)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">23 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Balance at June 30</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">87 </td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">184 </td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr style="height:8pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Six Months Ended June 30</td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2026</td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2025</td></tr><tr><td colspan="3" style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Balance at Jan. 1</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">79 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">67 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:6.75pt">Purchases (a)</div></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">151 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">198 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:6.75pt">Settlements (a)</div></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(60)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(122)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 7.75pt;text-align:left;vertical-align:bottom">Net transactions recorded during the period:</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:18pt">Net (losses) gains recognized as regulatory assets and liabilities (a)</div></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(83)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">41 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Balance at June 30</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">87 </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">184 </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="margin-bottom:5pt;padding-left:18pt;text-align:justify;text-indent:-18pt">(a)Relates primarily to FTR instruments administered by SPP.</div><div style="margin-bottom:5pt;margin-top:5pt;text-align:justify">Fair Value of Long-Term Debt</div><div style="text-align:justify">Other financial instruments for which the carrying amount did not equal fair value:</div><div style="margin-bottom:5pt;text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:44.255%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.166%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.741%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.166%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.648%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.166%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.741%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.166%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.651%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">June 30, 2026</td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Dec. 31, 2025</td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Carrying Amount</td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Fair Value</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Carrying Amount</td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Fair Value</td></tr><tr><td colspan="3" style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Long-term debt, including current portion</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">5,230 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">4,684 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">4,046 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">3,529 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Long-term debt - related parties</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">4 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">3 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="margin-bottom:5pt;text-align:justify">Fair value of SPS’ long-term debt is estimated based on recent trades and observable spreads from benchmark interest rates for similar securities. Fair value estimates are based on information available to management as of June 30, 2026 and Dec. 31, 2025, and given the observability of the inputs, fair values presented for long-term debt were assigned as Level 2.</div>

15000000

7000000

1 4 5000000 0.18 3 4 23000000 0.75 4

<div style="text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:72.943%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.892%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="width:1.0%"></td><td style="width:23.765%"></td><td style="width:0.1%"></td></tr><tr><td colspan="9" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Pre-Tax Fair Value Gains (Losses) Recognized During the Period in:</td></tr><tr><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Regulatory Assets and Liabilities</td></tr><tr><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Three Months Ended June 30, 2026</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Other derivative instruments:</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 7pt;text-align:left;vertical-align:middle">Electric commodity</td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">(59)</td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 19pt;text-align:left;vertical-align:middle">Total</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">(59)</td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr style="height:5pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Six Months Ended June 30, 2026</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Other derivative instruments:</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 7pt;text-align:left;vertical-align:middle">Electric commodity</td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">(71)</td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 19pt;text-align:left;vertical-align:middle">Total</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">(71)</td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr style="height:5pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Three Months Ended June 30, 2025</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Other derivative instruments:</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 7pt;text-align:left;vertical-align:middle">Electric commodity</td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">12 </td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 19pt;text-align:left;vertical-align:middle">Total</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">12 </td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr style="height:5pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Six Months Ended June 30, 2025</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Other derivative instruments:</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 7pt;text-align:left;vertical-align:middle">Electric commodity</td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">20 </td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 19pt;text-align:left;vertical-align:middle">Total</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">20 </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.726%"><tr><td style="width:1.0%"></td><td style="width:67.667%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.895%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="width:1.0%"></td><td style="width:24.653%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:3.285%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr style="height:12pt"><td colspan="9" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Pre-Tax (Gains) Losses Reclassified into Income During the Period from:</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr style="height:20pt"><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Regulatory Assets and Liabilities</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Three Months Ended June 30, 2026</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Other derivative instruments:</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 7pt;text-align:left;vertical-align:middle">Electric commodity</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;padding:1.5pt 0;text-align:right;vertical-align:bottom">18 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div>(a)</div></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 19pt;text-align:left;vertical-align:middle">Total</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">18 </td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr style="height:5pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Six Months Ended June 30, 2026</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Other derivative instruments:</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 7pt;text-align:left;vertical-align:middle">Electric commodity</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;padding:1.5pt 0;text-align:right;vertical-align:bottom">21 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div>(a)</div></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 19pt;text-align:left;vertical-align:middle">Total</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">21 </td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr style="height:5pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Three Months Ended June 30, 2025</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 7pt;text-align:left;vertical-align:middle">Electric commodity</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;padding:1.5pt 0;text-align:right;vertical-align:bottom">(19)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div>(a)</div></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 19pt;text-align:left;vertical-align:middle">Total</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">(19)</td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr style="height:5pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Six Months Ended June 30, 2025</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Other derivative instruments:</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 7pt;text-align:left;vertical-align:middle">Electric commodity</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;padding:1.5pt 0;text-align:right;vertical-align:bottom">(29)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div>(a)</div></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 19pt;text-align:left;vertical-align:middle">Total</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">(29)</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr></table></div><div style="margin-bottom:5pt;padding-left:18pt;text-align:justify;text-indent:-18pt">(a)Recorded to electric fuel and purchased power. These derivative settlement gains and losses are shared with electric customers through fuel and purchased energy cost-recovery mechanisms, and reclassified out of income as regulatory assets or liabilities, as appropriate. FTR settlements are shared with customers and do not have a material impact on net income. Presented amounts reflect changes in fair value between auction and settlement dates, but exclude the original auction fair value.</div>

-59000000 -59000000 -71000000 -71000000 12000000 12000000 20000000 20000000 -18000000 -18000000 -21000000 -21000000 19000000 19000000 29000000 29000000

<div style="margin-bottom:5pt;margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.470%"><tr><td style="width:1.0%"></td><td style="width:27.091%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.464%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.219%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.464%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.219%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.464%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.219%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.464%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.219%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.464%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.219%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.464%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.219%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.464%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.219%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.464%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.219%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.464%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.219%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.464%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.219%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.464%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.219%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.464%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.232%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="33" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">June 30, 2026</td><td colspan="3" style="padding:0 1pt"></td><td colspan="33" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Dec. 31, 2025</td></tr><tr style="height:15pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="15" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Fair Value</td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" rowspan="2" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Fair Value Total</td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" rowspan="2" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center">Netting (a)</div></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" rowspan="2" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Total</td><td colspan="3" style="padding:0 1pt"></td><td colspan="15" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Fair Value</td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" rowspan="2" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Fair Value Total</td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" rowspan="2" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center">Netting (a)</div></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" rowspan="2" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Total</td></tr><tr style="height:12pt"><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Level 1</td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Level 2</td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Level 3</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Level 1</td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Level 2</td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Level 3</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:left;vertical-align:middle">Current derivative assets</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:middle">Other derivative instruments:</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 7.75pt;text-align:left;vertical-align:middle">Electric commodity</td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">87 </td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">87 </td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">87 </td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">79 </td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">79 </td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;padding:1.5pt 0;text-align:right;vertical-align:bottom">79 </td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 19pt;text-align:left;vertical-align:middle">Total current derivative assets</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">87 </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">87 </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">87 </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">79 </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">79 </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">79 </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr></table></div>(a)SPS nets derivative instruments and related collateral on its balance sheet when supported by a legally enforceable master netting agreement. At June 30, 2026 and Dec. 31, 2025, derivative assets and liabilities include no obligations to return cash collateral or rights to reclaim cash collateral. Counterparty netting amounts presented exclude settlement receivables and payables and non-derivative amounts that may be subject to the same master netting agreements.

87000000

79000000

87000000

79000000

<div style="text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.726%"><tr><td style="width:1.0%"></td><td style="width:55.064%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.169%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:19.447%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.169%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:19.451%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Three Months Ended June 30</td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2026</td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2025</td></tr><tr><td colspan="3" style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Balance at April 1</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">132 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">103 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:6.75pt">Purchases (a)</div></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">46 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">132 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:6.75pt">Settlements (a)</div></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(37)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(74)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 7.75pt;text-align:left;vertical-align:bottom">Net transactions recorded during the period:</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:18pt">Net (losses) gains recognized as regulatory assets and liabilities (a)</div></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(54)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">23 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Balance at June 30</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">87 </td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">184 </td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr style="height:8pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Six Months Ended June 30</td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2026</td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2025</td></tr><tr><td colspan="3" style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Balance at Jan. 1</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">79 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">67 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:6.75pt">Purchases (a)</div></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">151 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">198 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:6.75pt">Settlements (a)</div></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(60)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(122)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 7.75pt;text-align:left;vertical-align:bottom">Net transactions recorded during the period:</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:18pt">Net (losses) gains recognized as regulatory assets and liabilities (a)</div></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(83)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">41 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Balance at June 30</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">87 </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">184 </td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="margin-bottom:5pt;padding-left:18pt;text-align:justify;text-indent:-18pt">(a)Relates primarily to FTR instruments administered by SPP.</div>

132000000

103000000

46000000

132000000

37000000

74000000

-54000000 23000000

87000000

184000000

79000000

67000000

151000000

198000000

60000000

122000000

-83000000 41000000

87000000

184000000

<div style="margin-bottom:5pt;text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:44.255%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.166%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.741%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.166%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.648%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.166%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.741%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.166%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.651%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">June 30, 2026</td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Dec. 31, 2025</td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Carrying Amount</td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Fair Value</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Carrying Amount</td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Fair Value</td></tr><tr><td colspan="3" style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Long-term debt, including current portion</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">5,230 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">4,684 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">4,046 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">3,529 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Long-term debt - related parties</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">4 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">3 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div>

5230000000

4684000000

4046000000

3529000000

4000000

3000000

<div style="margin-bottom:5pt;text-align:justify">Components of Net Periodic Benefit Cost</div><div style="text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:42.615%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.166%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.468%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.166%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.741%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.166%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.468%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.166%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.744%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="21" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Three Months Ended June 30</td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2026</td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2025</td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2026</td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2025</td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Pension Benefits</td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Postretirement Health Care Benefits</td></tr><tr><td colspan="3" style="background-color:#dbdbdb;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Service cost</td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">2 </td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;border-top:1pt solid #000;padding:0 1pt"></td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">2 </td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;border-top:1pt solid #000;padding:0 1pt"></td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div>Interest cost (a)</div></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">5 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">6 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">1 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#dbdbdb;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div>Expected return on plan assets (a)</div></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td colspan="2" style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(7)</td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td colspan="2" style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(8)</td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td colspan="2" style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(1)</td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td colspan="2" style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(1)</td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div>Amortization of net loss (a)</div></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">1 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">1 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 7.75pt;text-align:left;vertical-align:bottom">Net periodic benefit cost</td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td colspan="2" style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">1 </td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td colspan="2" style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">1 </td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td colspan="2" style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">— </td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td colspan="2" style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(1)</td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Effects of regulation</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">1 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 7.75pt;text-align:left;vertical-align:bottom">Net benefit cost recognized for financial reporting</td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">1 </td><td style="background-color:#dbdbdb;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">2 </td><td style="background-color:#dbdbdb;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#dbdbdb;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">(1)</td><td style="background-color:#dbdbdb;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="margin-bottom:5pt;text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.453%"><tr><td style="width:1.0%"></td><td style="width:42.856%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.898%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.812%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.898%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.812%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.898%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.812%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.898%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.816%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="21" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Six Months Ended June 30</td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2026</td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2025</td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2026</td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2025</td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Pension Benefits</td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Postretirement Health Care Benefits</td></tr><tr><td colspan="3" style="background-color:#dbdbdb;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Service cost</td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">4 </td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;border-top:1pt solid #000;padding:0 1pt"></td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">4 </td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;border-top:1pt solid #000;padding:0 1pt"></td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div>Interest cost (a)</div></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">11 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">12 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">1 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#dbdbdb;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div>Expected return on plan assets (a)</div></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td colspan="2" style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(15)</td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td colspan="2" style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(16)</td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td colspan="2" style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(1)</td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td colspan="2" style="background-color:#dbdbdb;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(1)</td><td style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div>Amortization of net loss (a)</div></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">3 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">1 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 7.75pt;text-align:left;vertical-align:bottom">Net periodic benefit cost</td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td colspan="2" style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">3 </td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td colspan="2" style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">1 </td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td colspan="2" style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">— </td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td colspan="2" style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(1)</td><td style="background-color:#dbdbdb;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Effects of regulation</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">1 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">— </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#dbdbdb;padding:1.5pt 1pt 1.5pt 7.75pt;text-align:left;vertical-align:bottom">Net benefit cost recognized for financial reporting</td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">3 </td><td style="background-color:#dbdbdb;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">2 </td><td style="background-color:#dbdbdb;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">— </td><td style="background-color:#dbdbdb;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#dbdbdb;padding:0 1pt"></td><td style="background-color:#dbdbdb;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#dbdbdb;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 0;text-align:right;vertical-align:bottom">(1)</td><td style="background-color:#dbdbdb;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="margin-bottom:5pt;padding-left:18pt;text-align:justify;text-indent:-18pt">(a)The components of net periodic cost other than the service cost component are included in the line item “Other income, net” in the statements of income or capitalized on the balance sheets as a regulatory asset.</div>In January 2026, contributions totaling $75 million were made across Xcel Energy’s pension plans, $2 million of which was attributable to SPS. Xcel Energy does not expect additional pension contributions during 2026.

2000000

5000000

6000000

1000000

7000000

8000000

1000000

-1000000

1000000 1000000 0 -1000000 0 1000000 0 0

1000000

2000000

-1000000

4000000

11000000

12000000

1000000

15000000

16000000

1000000

-3000000

-1000000

3000000 1000000 0 -1000000 0 1000000 0 0

3000000

2000000

-1000000

75000000

2000000

<div style="margin-bottom:5pt;text-align:justify">Legal </div><div style="margin-bottom:5pt;text-align:justify">SPS is involved in various litigation matters in the ordinary course of business. The assessment of whether a loss is probable or is a reasonable possibility, and whether the loss or a range of loss is estimable, often involves a series of complex judgments about future events. Management maintains accruals for losses probable of being incurred and subject to reasonable estimation. Management is sometimes unable to estimate an amount or range of a reasonably possible loss in certain situations, including but not limited to when (1) the damages sought are indeterminate, (2) the proceedings are in the early stages, or (3) the matters involve novel or unsettled legal theories.</div><div style="margin-bottom:5pt;text-align:justify">In such cases, there is considerable uncertainty regarding the timing or ultimate resolution, including a possible eventual loss. For current proceedings not specifically reported herein, management does not anticipate that the ultimate liabilities, if any, would have a material effect on SPS’ financial statements. Legal fees are generally expensed as incurred.</div><div style="margin-bottom:5pt;text-align:justify">2024 Smokehouse Creek Fire Complex — On February 26, 2024, multiple wildfires began in the Texas Panhandle, including the Smokehouse Creek Fire and the 687 Reamer Fire, which burned into the perimeter of the Smokehouse Creek Fire (together, referred to herein as the “Smokehouse Creek Fire Complex”). The Texas A&M Forest Service issued incident reports that determined that the Smokehouse Creek Fire and the 687 Reamer Fire were caused by power lines owned by SPS after wooden poles near each fire origin failed. According to the Texas A&M Forest Service’s Incident Viewer and news reports, the Smokehouse Creek Fire Complex burned approximately 1,055,000 acres. </div><div style="margin-bottom:5pt;text-align:justify">After reaching the generally applicable two-year statute of limitations for property damage in Texas, SPS is aware of approximately 73 complaints, most of which have also named Xcel Energy Services Inc. as an additional defendant, relating to the Smokehouse Creek Fire Complex. The complaints, which assert claims on behalf of one or more plaintiffs, generally allege that SPS’ equipment ignited the Smokehouse Creek Fire Complex and seek compensation for losses resulting from the fire, asserting various causes of action under Texas law. In addition to seeking compensatory damages, certain of the complaints also seek exemplary damages. Of the 73 complaints, 28 have been resolved. </div><div style="margin-bottom:5pt;text-align:justify">SPS has received 304 claims through its claims process, net of duplicative, withdrawn and denied claims, and has reached final settlements on 237 of those claims as of the date of this filing. In addition to filed complaints and claims made through SPS’ claims process, SPS has also received information from attorneys for approximately 107 additional claims and has reached settlement of 79 of those claims through mediation.</div><div style="margin-bottom:5pt;text-align:justify">In December 2025, the Texas Attorney General’s office filed a lawsuit against SPS regarding the Smokehouse Creek Fire, seeking monetary damages and civil penalties for losses to property and wildlife resulting from the fires. In February 2026, pending resolution of the lawsuit, SPS and the Texas Attorney General’s office jointly filed a temporary injunction agreeing to certain distribution pole replacement procedures, largely consistent with current procedures.</div><div style="display:inline-block;vertical-align:top;width:48.414%"><div style="margin-bottom:5pt;text-align:justify">SPS has settled claims related to both fatalities believed to be associated with the Smokehouse Creek Fire Complex. Settlements have also been reached with the subrogated insurer plaintiffs as well as the three largest claims asserted from the fire, as measured by fire-impacted acreage. Settlements reached as of the date of this filing total $404 million of expected loss payments, of which $398 million and $374 million were paid through June 30, 2026 and Dec. 31, 2025, respectively.</div><div style="margin-bottom:5pt;text-align:justify">Based on the current state of the law and the facts and circumstances available as of the date of this filing, Xcel Energy has recorded $56 million of remaining estimated probable losses for the matter (before available insurance), for a total estimated loss of $460 million. Additionally, approximately $43 million in legal costs have been incurred as of June 30, 2026, resulting in total estimated losses and incurred costs related to this proceeding of $503 million as of June 30, 2026. An estimated liability of $62 million and $56 million for estimated losses is presented in other current liabilities as of June 30, 2026 and Dec. 31, 2025, respectively.</div><div style="margin-bottom:5pt;text-align:justify">The estimated remaining probable losses for complaints and claims in connection with the Smokehouse Creek Fire Complex (before available insurance) represents the low end of the range for remaining reasonably estimable losses and is subject to change as additional information becomes available. This estimate does not include amounts for (i) potential penalties or fines that may be imposed by governmental entities on Xcel Energy, (ii) exemplary or punitive damages, (iii) compensation claims by federal, state, county and local government entities or agencies, (iv) unsettled compensation claims for damage to oil and gas equipment, or (v) other amounts that are not reasonably estimable.</div><div style="margin-bottom:5pt;text-align:justify">Xcel Energy remains unable to reasonably estimate any additional loss or the upper end of the range because there are a number of unknown facts and legal considerations that may impact the amount of any potential liability, including the nature of demands that may be made. Resolution of remaining complaints and claims associated with the Smokehouse Creek Fire Complex could exceed our insurance coverage of $525 million for the annual policy period (of which approximately $80 million of coverage remains after consideration of settlements reached and legal costs incurred through June 30, 2026) and could have a material adverse effect on our financial condition, results of operations or cash flows. </div><div style="margin-bottom:5pt;text-align:justify">The process for estimating losses associated with potential claims related to the Smokehouse Creek Fire Complex requires management to exercise significant judgment based on a number of assumptions and subjective factors, including the factors identified above and estimates based on currently available information and prior experience with wildfires. As more information becomes available, management estimates and assumptions regarding the potential financial impact of the Smokehouse Creek Fire Complex may change.</div><div style="margin-bottom:5pt;text-align:justify">Texas law does not apply strict liability in determining an electric utility company’s liability for fire-related damages. For negligence claims under Texas law, a public utility has a duty to exercise ordinary and reasonable care. </div><div style="margin-bottom:5pt;text-align:justify">Potential liabilities related to the Smokehouse Creek Fire Complex depend on various factors, including the cause of the equipment failure and the extent and magnitude of potential damages, including damages to residential and commercial structures, personal property, vegetation, livestock and livestock feed (including replacement feed), personal injuries and any other damages, penalties, fines or restitution that may be imposed by courts or other governmental entities if SPS is found to have been negligent.</div></div><div style="display:inline-block;vertical-align:top;width:48.412%"><div style="margin-bottom:5pt;text-align:justify">SPS records insurance recoveries when it is deemed probable that recovery will occur, and SPS can reasonably estimate the amount or range. Insurance receivables for estimated losses of approximately $81 million and $195 million, net of recoveries received are presented in prepayments and other current assets as of June 30, 2026 and Dec. 31, 2025, respectively. While SPS plans to seek recovery of all insured losses, it is unable to predict the ultimate amount and timing of such insurance recoveries.</div><div style="margin-bottom:5pt;text-align:justify">Rate Matters and Other</div><div style="margin-bottom:5pt;text-align:justify">SPS is involved in various regulatory proceedings arising in the ordinary course of business. Until resolution, typically in the form of a rate order, uncertainties may exist regarding the ultimate rate treatment for certain activities and transactions. Amounts have been recognized for probable and reasonably estimable losses that may result. Unless otherwise disclosed, any reasonably possible range of loss in excess of any recognized amount is not expected to have a material effect on the financial statements.</div><div style="margin-bottom:5pt;text-align:justify">SPP OATT Upgrade Costs — SPP had not been charging its customers for certain transmission upgrades, even though the SPP OATT had allowed SPP to do so since 2008, and in 2016 the FERC granted SPP’s request to recover previously unbilled charges. SPP subsequently billed SPS approximately $13 million. In 2019, following an appeal by SPS, the FERC reversed its 2016 decision and ordered SPP to refund charges retroactively collected from its transmission customers, including SPS, related to periods before September 2015. In November 2025, SPP filed a response to a September 2025 FERC information request on SPP’s refund plan, which the FERC approved in part in July 2026. SPS has recorded an estimate for a customer refund in this matter. Any refunds received or new back-billings paid by SPS to resolve the matter are generally expected to be shared with SPS customers through future rates, subject to PUCT and NMPRC approvals.</div><div style="margin-bottom:5pt;margin-top:5pt;text-align:justify">Environmental</div><div style="margin-bottom:5pt;margin-top:5pt;text-align:justify">New and changing federal and state environmental mandates can create financial liabilities for SPS, which are normally recovered through the regulated rate process. </div><div style="margin-bottom:5pt;margin-top:5pt;text-align:justify">Site Remediation</div><div style="margin-bottom:5pt;text-align:justify">Various federal and state environmental laws impose liability where hazardous substances or other regulated materials have been released to the environment. SPS may sometimes pay all or a portion of the cost to remediate sites where past activities of their predecessors or other parties have caused environmental contamination. </div><div style="margin-bottom:5pt;text-align:justify">Environmental contingencies could arise from various situations, including sites of former MGPs; and third-party sites, such as landfills, for which SPS is alleged to have sent wastes to that site.</div><div style="margin-bottom:5pt;text-align:justify">MGP, Landfill and Disposal Sites </div><div style="margin-bottom:5pt;text-align:justify">SPS is investigating, remediating or performing post-closure actions at three historical MGP, landfill or other disposal sites across its service territories, excluding sites that are being addressed under current coal ash regulations (see below). </div><div style="margin-bottom:5pt;text-align:justify">SPS has recognized an immaterial amount of remaining liabilities for resolution of these issues, however, the final outcome and timing are unknown. In addition, there may be regulatory recovery, insurance recovery and/or recovery from other potentially responsible parties, offsetting a portion of costs incurred.</div></div><div style="margin-bottom:5pt;text-align:justify">Water and Waste</div><div style="margin-bottom:5pt;text-align:justify">Coal Ash Regulation — SPS is subject to the CCR Rule, which imposes requirements for handling, storage, treatment and disposal of coal ash and other solid waste.</div><div style="margin-bottom:5pt;text-align:justify">In May 2024, final amendments to the CCR Rule were published, widening its scope to include legacy CCR surface impoundments at inactive facilities and previously exempt areas where CCR was placed directly on land at CCR-regulated facilities, including areas of beneficial use.</div><div style="margin-bottom:5pt;text-align:justify">As a requirement of the CCR Rule, utilities must complete facility evaluations and groundwater sampling around their subject landfills, surface impoundments and certain other areas where coal ash was placed on land. </div><div style="margin-bottom:5pt;text-align:justify">If certain impacts to groundwater are detected, utilities are required to perform additional groundwater investigations and/or perform corrective actions.</div><div style="margin-bottom:5pt;text-align:justify">SPS continues to perform site investigation activities related to the CCR Rule, which may result in updates to estimated costs as well as identification of additional required corrective actions. </div><div style="margin-bottom:5pt;text-align:justify">In February 2026, the EPA issued a final rule amending the CCR Legacy rule. The ruling extends deadlines for various regulatory actions and clarifies previous information regarding implementation of the rule. SPS anticipates impacts to be consistent with prior accruals.</div><div style="margin-bottom:5pt;text-align:justify">In April 2026, the EPA published a new proposed rule with additional amendments to the CCR Legacy Rule. SPS is evaluating this proposed rule and its potential impacts. </div><div style="margin-bottom:5pt;text-align:justify">Air</div><div style="margin-bottom:5pt;text-align:justify">Clean Air Act NOx Allowance Allocations — In June 2023, the EPA published final regulations for ozone under the “Good Neighbor” provisions of the Clean Air Act that established NOx allowance budgets for fossil fuel-fired electric generating facilities in subject states. The final rule establishes a federal plan and applies to generation facilities in Texas, as well as other states outside of our service territory. The EPA later proposed to include New Mexico in the federal plan.</div><div style="margin-bottom:5pt;text-align:justify">If the rule is implemented, SPS anticipates the annual costs could be significant but recoverable through regulatory mechanisms. However, the plan is subject to both judicial and administrative stays while the EPA reconsiders the rule. In January 2026, the EPA proposed Phase 1 of its reconsideration of the “Good Neighbor” rule. SPS will continue to evaluate any additional phases of the reconsideration of this rule as they are published by the EPA.</div>Includes immaterial short-term lease expense.<div style="margin-bottom:5pt;margin-top:5pt;text-align:justify">Variable Interest Entities</div><div style="margin-bottom:5pt;text-align:justify">Under certain PPAs, SPS purchases power from IPPs for which SPS is required to reimburse fuel costs, or to participate in tolling arrangements under which SPS procures the natural gas required to produce the energy that it purchases. SPS has determined that certain IPPs are VIEs. SPS is not directly subject to risk of loss from the operations of these entities, and no additional significant financial support is required other than contractual payments for energy and capacity.</div><div style="margin-bottom:5pt;text-align:justify">In addition, certain solar PPAs provide an option to purchase emission allowances or sharing provisions for specified transactions. These specific PPAs create a variable interest in the IPP.</div><div style="margin-bottom:5pt;text-align:justify">SPS evaluated each of these VIEs for possible consolidation and concluded that these entities are not required to be consolidated in its financial statements because it does not have the power to direct the activities that most significantly impact the entities’ economic performance. </div><div style="margin-bottom:5pt;text-align:justify">SPS had 1,197 MW of capacity under long-term PPAs at both June 30, 2026 and Dec. 31, 2025 with entities that have been determined to be VIEs. These agreements have expiration dates through 2048.</div>

73 73 28 304 237 107 79 404000000 398000000 374000000 56000000 460000000

43000000

503000000 62000000 56000000 525000000 80000000 81000000 195000000 13000000 3

<div style="margin-bottom:5pt;margin-top:5pt">Leases</div><div style="margin-bottom:5pt;text-align:justify">PPA operating lease payments are included in electric fuel and purchased power, and expense for other operating leases is included in O&M expense and electric fuel and purchased power.</div><div>Components of lease expense:</div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:60.102%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.892%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:17.206%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.892%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:17.208%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Three Months Ended June 30</td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2026</td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2025</td></tr><tr><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Operating leases</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 7pt;text-align:left;vertical-align:bottom">PPA capacity payments</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;padding:1.5pt 0;text-align:right;vertical-align:bottom">11 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;padding:1.5pt 0;text-align:right;vertical-align:bottom">9 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:6pt">Other operating leases (a)</div></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">1 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">1 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 13pt;text-align:left;vertical-align:bottom">Total operating lease expense</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">12 </td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">10 </td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:60.102%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.892%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:17.206%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.892%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:17.208%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Six Months Ended June 30</td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2026</td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2025</td></tr><tr><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Operating leases</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 7pt;text-align:left;vertical-align:bottom">PPA capacity payments</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;padding:1.5pt 0;text-align:right;vertical-align:bottom">22 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;padding:1.5pt 0;text-align:right;vertical-align:bottom">18 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:6pt">Other operating leases (a)</div></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">2 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">2 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 13pt;text-align:left;vertical-align:bottom">Total operating lease expense</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">24 </td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">20 </td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="margin-bottom:5pt;padding-left:18pt;text-align:justify;text-indent:-18pt">(a)Includes immaterial short-term lease expense.</div><div>Commitments under operating leases as of June 30, 2026:</div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:53.818%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.892%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:12.834%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.892%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:12.834%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.892%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:12.838%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">PPA Operating Leases</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Other Operating Leases</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Total Operating Leases</td></tr><tr><td colspan="3" style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Total minimum obligation</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">335 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">42 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">377 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Interest component of obligation</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(49)</td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(9)</td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(58)</td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Present value of minimum obligation</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">286 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">33 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">319 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Less current portion</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(36)</td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Noncurrent operating lease liabilities</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">283 </td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div>

11000000

9000000

1000000

12000000

10000000

22000000

18000000

2000000

24000000

20000000

<div>Commitments under operating leases as of June 30, 2026:</div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:53.818%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.892%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:12.834%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.892%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:12.834%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.892%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:12.838%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">PPA Operating Leases</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Other Operating Leases</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Total Operating Leases</td></tr><tr><td colspan="3" style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Total minimum obligation</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">335 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">42 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">377 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Interest component of obligation</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(49)</td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(9)</td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(58)</td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Present value of minimum obligation</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">286 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">33 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">319 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Less current portion</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(36)</td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Noncurrent operating lease liabilities</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">283 </td><td style="background-color:#e0e0e0;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div>

335000000

42000000

377000000

49000000

9000000

58000000

286000000

33000000

319000000

36000000

283000000

1197 1197

<div style="text-align:justify">Segment information:</div><div style="text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:52.998%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.892%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:20.757%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.892%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:20.761%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Three Months Ended June 30</td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2026</td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2025</td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Regulated electric utility</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Regulated electric utility</td></tr><tr><td colspan="3" style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Operating revenues</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">389 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">508 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Electric fuel and purchased power</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">18 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">158 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">O&M expenses</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">85 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">83 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Depreciation and amortization</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">125 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">115 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Other segment expenses, net</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">18 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">22 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Interest charges and financing costs</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">44 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">45 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Income tax benefit</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(24)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(16)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Net income</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">123 </td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">101 </td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:52.998%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.892%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:20.757%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.892%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:20.761%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Six Months Ended June 30</td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2026</td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">2025</td></tr><tr><td colspan="3" style="padding:1.5pt 1pt;text-align:left;vertical-align:bottom">(Millions of Dollars)</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Regulated electric utility</td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:1.5pt 1pt;text-align:center;vertical-align:bottom">Regulated electric utility</td></tr><tr><td colspan="3" style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Operating revenues</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">919 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">1,029 </td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Electric fuel and purchased power</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">216 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">374 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">O&M expenses</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">171 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">171 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Depreciation and amortization</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">244 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">227 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Other segment expenses, net</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">35 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">46 </td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Interest charges and financing costs</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">90 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">88 </td><td style="background-color:#ffffff;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Income tax benefit</td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(44)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"></td><td colspan="2" style="background-color:#e0e0e0;padding:1.5pt 0 1.5pt 1pt;text-align:right;vertical-align:bottom">(37)</td><td style="background-color:#e0e0e0;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:1.5pt 1pt;text-align:left;vertical-align:bottom">Net income</td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">207 </td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 0 1.5pt 1pt;text-align:left;vertical-align:bottom">$</td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 0;text-align:right;vertical-align:bottom">160 </td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:1.5pt 1pt 1.5pt 0;text-align:right;vertical-align:bottom"></td></tr></table></div>

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false false false false Amounts include Tolk Unit 1 and 2. Amounts are reported net of accumulated depreciation. Expires in December 2029 Includes outstanding commercial paper and letters of credit. For the three months ended June 30, 2026 and 2025, revenues from one C&I customer represented approximately 10.2% and 10.1% of total revenues, respectively. Wind PTCs (net of transfer discounts) are generally credited to customers (reduction to revenue) and do not materially impact earnings. Regulatory adjustments primarily relate to the credit of plant related excess deferred taxes to customers for tax rate changes as well as the capitalization of AFUDC equity for book purposes only. Income tax benefits associated with the credit of excess deferred taxes are offset by corresponding revenue reductions. State and local income taxes are primarily New Mexico state taxes. Not reflective of net positions in the underlying commodities. Recorded to electric fuel and purchased power. These derivative settlement gains and losses are shared with electric customers through fuel and purchased energy cost-recovery mechanisms, and reclassified out of income as regulatory assets or liabilities, as appropriate. FTR settlements are shared with customers and do not have a material impact on net income. Presented amounts reflect changes in fair value between auction and settlement dates, but exclude the original auction fair value. SPS nets derivative instruments and related collateral on its balance sheet when supported by a legally enforceable master netting agreement. At June 30, 2026 and Dec. 31, 2025, derivative assets and liabilities include no obligations to return cash collateral or rights to reclaim cash collateral. Counterparty netting amounts presented exclude settlement receivables and payables and non-derivative amounts that may be subject to the same master netting agreements. Relates primarily to FTR instruments administered by SPP. The components of net periodic cost other than the service cost component are included in the line item “Other income, net” in the statements of income or capitalized on the balance sheets as a regulatory asset. Includes immaterial short-term lease expense.