Other revenues and income Other Revenue And Income Other Revenue And Income Statistical Measurement [Domain] Statistical Measurement [Domain] Other current assets, net Other Current Assets [Member] Property, plant and equipment Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment Amortization of prior service cost credit included in net periodic benefit cost, net of tax Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, after Tax Commodity Contracts Commodity Contract [Member] Expected return on plan assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets SoCal Border - Natural Gas Q2 2026 SoCal Border - Natural Gas Q2 2026 [Member] SoCal Border - Natural Gas Q2 2026 Net loss (gain) from natural gas purchase derivatives Net loss (gain) from natural gas purchase derivatives Derivative, Gain (Loss) On Natural Gas Purchase Derivatives Derivative, Gain (Loss) On Natural Gas Purchase Derivatives Award Timing Predetermined Award Timing Predetermined [Flag] Contributions to the Carbon TerraVault JV Noncash Investing Activities, Capital Call Related To Equity Method Investment Noncash Investing Activities, Capital Call Related To Equity Method Investment Offshore platforms with decommissioning obligations defaulted period since interest sold (in years) Off shore Platforms With Decommissioning Obligations Defaulted Period Since Interest Sold Off shore Platforms With Decommissioning Obligations Defaulted Period Since Interest Sold Stock-based compensation Business Combination, Consideration Transferred, Share-Based Payment Arrangement Business Combination, Consideration Transferred, Share-Based Payment Arrangement Entity File Number Entity File Number Additional Paid-in Capital Additional Paid-in Capital [Member] Other noncurrent assets Other Noncurrent Assets [Member] Equity loss from unconsolidated subsidiaries Equity loss from unconsolidated subsidiaries Net loss Income (Loss) from Equity Method Investments Non-cash loss (gain) from natural gas purchase derivatives Unrealized Gain (Loss) On Natural Gas Purchase Derivatives, Portion Attributable To Parent Unrealized Gain (Loss) On Natural Gas Purchase Derivatives, Portion Attributable To Parent Tabular List, Table Tabular List [Table Text Block] Schedule of Other Long-term Liabilities Other Noncurrent Liabilities [Table Text Block] Schedule of Dividends Declared Dividends Declared [Table Text Block] Recently Issued but not Adopted Accounting and Disclosure Changes New Accounting Pronouncements, Policy [Policy Text Block] SOFR Secured Overnight Financing Rate (SOFR) [Member] Reimbursement for abandonment work Equity Method Investment, Reimbursement Amount Equity Method Investment, Reimbursement Amount Settlement of Berry debt Business Combination, Consideration Transferred, Liabilities Incurred Shares cancelled for taxes Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Measurement Basis [Axis] Measurement Basis [Axis] Basic (in dollars per share) Basic (in dollars per share) Earnings Per Share, Basic Adjustment to Compensation: Adjustment to Compensation [Axis] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Other Other Assets, Miscellaneous, Current Accrued liabilities Business Combination, Recognized Liability Assumed, Accrued Liabilities Business Combination, Recognized Liability Assumed, Accrued Liabilities Adjustments, Fair value of derivative contracts Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Fair Value Of Derivative Contracts Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Fair Value Of Derivative Contracts EPS Earnings Per Shares Basic and Diluted [Abstract] Earnings Per Shares Basic and Diluted Oxy Occidental Petroleum Corporation [Member] Occidental Petroleum Corporation Materials and supplies Other Inventory, Supplies, Gross Current income tax provision Current Income Tax Expense (Benefit) SoCal Border - Natural Gas 2027 SoCal Border - Natural Gas 2027 [Member] SoCal Border - Natural Gas 2027 Other Other Assets, Miscellaneous, Noncurrent Adjustment to Compensation, Amount Adjustment to Compensation Amount Pension Benefit Pension Plan [Member] Unamortized debt discount and issuance costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Consolidation Consolidation, Policy [Policy Text Block] Employee Stock Option Share-Based Payment Arrangement, Option [Member] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Income taxes paid Income Taxes Paid Antidilutive Securities [Axis] Antidilutive Securities [Axis] Cash dividend Dividends, Common Stock, Cash Total stockholders' equity Beginning balance Ending balance Total equity Equity, Attributable to Parent Insider Trading Policies and Procedures [Line Items] Common stock, authorized shares (in shares) Common Stock, Shares Authorized Segment Reporting, Asset Reconciling Item [Line Items] Segment Reporting, Asset Reconciling Item [Line Items] Hedging Designation [Domain] Hedging Designation [Domain] Business Combination, Goodwill, Reportable Segment Assignment [Line Items] Business Combination, Goodwill, Reportable Segment Assignment [Line Items] CURRENT ASSETS Assets, Current [Abstract] TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities and Equity Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Common stock issued in connection with acquisition (in shares) Shares of common stock (in shares) Stock Issued During Period, Shares, Acquisitions Measurement period adjustments, net Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Accretion Expense And Depreciation, Depletion And Amortization Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Accretion Expense And Depreciation, Depletion And Amortization Cover [Abstract] Cover [Abstract] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Maximum Maximum [Member] Schedule of Equity Method Investments [Table] Equity Method Investment [Table] Debt Long-Term Debt, Unclassified [Abstract] Management Services Agreement Management Services Agreement [Member] Management Services Agreement Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Debt instrument Debt Instrument [Line Items] Treasury Stock Treasury Stock, Common [Member] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Pay vs Performance Disclosure [Line Items] Borrowing base Line Of Credit Facility, Borrowing Base Line Of Credit Facility, Borrowing Base Retirement Benefits [Abstract] Retirement Benefits [Abstract] Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Investments in consolidated subsidiaries Investments In Consolidated Affiliates Subsidiaries Associates And Joint Ventures Investments In Consolidated Affiliates Subsidiaries Associates And Joint Ventures Operating costs: Oil And Gas, Production Cost, Operating Costs [Abstract] Oil And Gas, Production Cost, Operating Costs BUSINESS COMBINATIONS Business Combination [Text Block] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Barrels per day (in barrels) Derivative, Nonmonetary Notional Amount, Volume (LOSS) INCOME BEFORE INCOME TAXES (Loss) income before income taxes Loss before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Entity Shell Company Entity Shell Company Adjustments, Other noncurrent assets Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Asset, Noncurrent Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Asset, Noncurrent Dividend equivalents on equity-settled awards Dividend equivalents on equity-settled awards Payments On Share-Based Payment Arrangement, Cash Used To Settle Award Payments On Share-Based Payment Arrangement, Cash Used To Settle Award Equity Method Investments [Roll Forward] Equity Method Investments [Roll Forward] Equity Method Investments Other long-term liabilities Other long-term liabilities Other long-term liabilities Other Liabilities, Noncurrent Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Purchased Puts - Crude Oil Q4 2026 Purchased Puts - Crude Oil Q4 2026 [Member] Purchased Puts - Crude Oil Q4 2026 Proceeds from issuance of debt Proceeds from Issuance of Debt Taxes other than on income Accrual for Taxes Other than Income Taxes, Current Natural gas liquids Propane [Member] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Operating Segments Operating Segments [Member] Schedule of Cash Flow, Supplemental Disclosures Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Electricity generation expenses Electricity Generation Expenses [Member] Electricity Generation Expenses Company Selected Measure Amount Company Selected Measure Amount Pension benefit plans contributed Defined Benefit Plan, Plan Assets, Contributions by Employer Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Comprehensive (loss) income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Schedule of Other Current Assets, Net Schedule of Other Current Assets [Table Text Block] Name Measure Name Letters of Credit Letter of Credit [Member] Operating lease liability Operating Lease, Liability, Current Deferred tax liabilities Deferred tax liability Deferred Income Tax Liabilities, Net Document Fiscal Period Focus Document Fiscal Period Focus Sold Calls - Crude Oil 2027 Sold Calls - Crude Oil 2027 [Member] Sold Calls - Crude Oil 2027 Award Timing Method Award Timing Method [Text Block] Award Type Award Type [Axis] Parent Parent Company [Member] Legal Entity [Axis] Legal Entity [Axis] Schedule of Business Acquisition, Pro Forma Information Business Combination, Pro Forma Information [Table Text Block] TOTAL ASSETS Assets Signal Hill offshore platform expense accrual Accrual For Platform Expense Accrual For Platform Expense Investment, Name [Domain] Investment, Name [Domain] Trading Symbol Trading Symbol Transportation costs Transportation Costs [Member] Transportation Costs Entity Address, City or Town Entity Address, City or Town CASH FLOW FROM OPERATING ACTIVITIES Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] BASIS OF PRESENTATION Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Other segment expenses Segment Reporting, Other Segment Item, Amount Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Restricted stock units Shares issuable upon settlement of RSUs Restricted Stock Units (RSUs) [Member] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Total consideration Business Combination, Consideration Transferred Entity Emerging Growth Company Entity Emerging Growth Company Rate per share (in dollars per share) Dividends declared, common stock (in dollars per share) Common Stock, Dividends, Per Share, Declared Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Total Assets Acquired Business Combination, Recognized Asset Acquired, Asset Repayments of Revolving Credit Facility Repayments of Lines of Credit Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Debt issuance costs Debt Issuance Costs, Net Net loss (gain) from commodity derivatives Derivative, Gain (Loss) on Derivative, Net INVESTMENT IN UNCONSOLIDATED SUBSIDIARIES Investment in unconsolidated subsidiaries Beginning balance Ending balance Equity Method Investments Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Business Combination [Domain] Business Combination [Domain] Related Party Related Party [Member] Common stock, outstanding shares (in shares) Common Stock, Shares, Outstanding Carbon Management Carbon Management Carbon Management Segment [Member] Carbon Management Segment PEO PEO [Member] Schedule of Disaggregated Revenue Disaggregation of Revenue [Table Text Block] Postretirement plan Assets for Plan Benefits, Defined Benefit Plan Proceeds from 2034 Senior Notes, net Proceeds from Issuance of Senior Long-Term Debt Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Energy operating costs Oil And Gas, Production Cost, Energy Operating Costs Oil And Gas, Production Cost, Energy Operating Costs Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Retained Earnings Retained Earnings [Member] Schedule of Accrued Liabilities Schedule of Accrued Liabilities [Table Text Block] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Cash and cash equivalents—beginning of period Cash and cash equivalents—end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income Statement [Abstract] Income Statement [Abstract] Funded pension Defined Benefit Plan, Funded Pension, Noncurrent Defined Benefit Plan, Funded Pension, Noncurrent Net Fair Value Derivative Asset Income tax benefit (provision) Income tax (benefit) provision Income Tax Expense (Benefit) Interest rate added to variable rate basis Debt Instrument, Basis Spread on Variable Rate Sold Calls - Crude Oil Q3 2026 Sold Calls - Crude Oil Q3 2026 [Member] Sold Calls - Crude Oil Q3 2026 Fair value of derivative contracts Fair value of derivative contracts Derivative Liability, Noncurrent Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Swaps - Crude Oil Q4 2026 Swaps - Crude Oil Q4 2026 [Member] Swaps - Crude Oil Q4 2026 Products and Services [Domain] Product and Service [Domain] California Geologic Energy Management Division California Geologic Energy Management Division [Member] California Geologic Energy Management Division Changes in accrued capital investments Increase Decrease In Capital Investment Accrual Represents the information pertaining to changes in capital investment accruals Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Business Combination [Table] Business Combination [Table] Asset retirement obligation, liabilities incurred Asset Retirement Obligation, Liabilities Incurred Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Acquisitions Payments to Acquire Other Productive Assets NWPL Rockies - Natural Gas Q4 2026 NWPL Rockies - Natural Gas Q4 2026 [Member] NWPL Rockies - Natural Gas Q4 2026 Business Combination, Recognized Asset Acquired and Liability Assumed Business Combination, Recognized Asset Acquired and Liability Assumed [Table Text Block] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Accumulated depreciation, depletion and amortization Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization City Area Code City Area Code Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] All Trading Arrangements All Trading Arrangements [Member] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Accrued liabilities Accrued liabilities Accrued Liabilities, Current Sold Calls - Crude Oil Q4 2026 Sold Calls - Crude Oil Q4 2026 [Member] Sold Calls - Crude Oil Q4 2026 Basis spread on variable rate, incremental reduction Debt Instrument, Basis Spread On Variable Rate, Incremental Reduction Debt Instrument, Basis Spread On Variable Rate, Incremental Reduction Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] CASH FLOW FROM INVESTING ACTIVITIES Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Total Reportable Segments Reportable Segment [Member] Reportable Segment Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Equity Method Investments and Joint Ventures [Abstract] Equity Method Investments and Joint Ventures [Abstract] Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Amortization of net actuarial loss Defined Benefit Plan, Amortization of Gain (Loss) Subsequent Event Subsequent Event [Member] Other current assets Business Combination, Recognized Asset Acquired, Other Asset, Current Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] PEO Total Compensation Amount PEO Total Compensation Amount Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Non-cash (loss) gain from commodity sales derivatives Unrealized Gain (Loss) on Derivatives and Commodity Contracts, Portion Attributable To Parent Unrealized Gain (Loss) on Derivatives and Commodity Contracts, Portion Attributable To Parent Swaps - Crude Oil 2027 Swaps - Crude Oil 2027 [Member] Swaps - Crude Oil 2027 Fair value of derivative contracts Business Combination, Recognized Asset Acquired, Fair Value Of Derivative Contracts Business Combination, Recognized Asset Acquired, Fair Value Of Derivative Contracts Gross Amounts at Fair Value Derivative Liability, Subject to Master Netting Arrangement, before Offset Purchased Puts - Crude Oil Q2 2026 Purchased Puts - Crude Oil Q2 2026 [Member] Purchased Puts - Crude Oil Q2 2026 Assets Acquired Business Combination, Recognized Asset Acquired, Asset [Abstract] Denominator for Basic EPS Weighted Average Number of Shares Outstanding, Basic [Abstract] Equity Components [Axis] Equity Components [Axis] Postretirement and pension benefit plans Liability, Defined Benefit Pension Plan, Noncurrent Adjustments, Deferred tax asset Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Deferred Tax Asset Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Deferred Tax Asset NWPL Rockies - Natural Gas Q3 2026 NWPL Rockies - Natural Gas Q3 2026 [Member] NWPL Rockies - Natural Gas Q3 2026 Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Accretion expense Accretion Expense Number of reportable segments Number of Reportable Segments Inventories Business Combination, Recognized Asset Acquired, Inventory, Current Accounts receivable Business Combination, Recognized Asset Acquired, Receivable, Current Basis spread on variable rate, reduction Debt Instrument, Basis Spread On Variable Rate, Reduction Debt Instrument, Basis Spread On Variable Rate, Reduction Asset retirement obligations Business Combination, Recognized Liability Assumed, Noncurrent Liabilities, Asset Retirement Obligations Business Combination, Recognized Liability Assumed, Noncurrent Liabilities, Asset Retirement Obligations Other Performance Measure, Amount Other Performance Measure, Amount Entity Address, State or Province Entity Address, State or Province Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Security, Excluded EPS Calculation [Table] NWPL Rockies - Natural Gas 2028 NWPL Rockies - Natural Gas 2028 [Member] NWPL Rockies - Natural Gas 2028 Related Party, Type [Domain] Related and Nonrelated Parties [Domain] Total current liabilities Total current liabilities Liabilities, Current Swaps - Crude Oil 2028 Swaps - Crude Oil 2028 [Member] Swaps - Crude Oil 2028 Derivative Instrument [Axis] Derivative Instrument [Axis] Litigation Status [Axis] Litigation Status [Axis] Individual: Individual [Axis] Restricted cash Restricted Cash PROPERTY, PLANT AND EQUIPMENT Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization Numerator for Basic and Diluted EPS Earnings Per Share Reconciliation [Abstract] Capital investments Capital Investments Capital Investments Common stock dividends Payments of Ordinary Dividends, Common Stock Other current assets, net Other current assets, net Other Assets, Current Additional paid-in capital Additional Paid in Capital, Common Stock Adjustments, Property, plant and equipment Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Property, Plant, and Equipment Entity [Domain] Entity [Domain] Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Fair value of commodity derivative contracts Derivative Asset, Noncurrent Interest paid, net of amounts capitalized Interest Paid, Excluding Capitalized Interest, Operating Activity Middle River Power, LLC (MRP) Middle River Power, LLC (MRP) [Member] Middle River Power, LLC (MRP) Document Fiscal Year Focus Document Fiscal Year Focus Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Operating lease right-of-use assets Operating Lease, Right-of-Use Asset Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Annual effective tax rate Effective Income Tax Rate Reconciliation, Percent Entity Interactive Data Current Entity Interactive Data Current Net Fair Value Reported Value Measurement [Member] Taxes other than on income Taxes, Miscellaneous Equity [Abstract] Equity [Abstract] Combined Unrestricted Subsidiaries Combined Unrestricted Subsidiaries, Consolidating [Member] Combined Unrestricted Subsidiaries, Consolidating Less: Segment Reconciliation [Abstract] SEGMENT INFORMATION Segment Reporting Disclosure [Text Block] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Settlements Gain (Loss) on Sale of Derivatives Not Designated as Hedging Instrument Not Designated as Hedging Instrument [Member] Other Commitments [Line Items] Other Commitments [Line Items] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] CONDENSED CONSOLIDATING FINANCIAL INFORMATION Condensed Financial Statements [Text Block] Ownership [Domain] Ownership [Domain] Schedule of Components of Net Periodic Benefit Costs Schedule of Net Benefit Costs [Table Text Block] Other long-term liabilities Business Combination, Recognized Liability Assumed, Other Liability, Noncurrent Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Adjustments, Cash Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Cash And Cash Equivalents Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Measurement Period Adjustments, Cash General and administrative expenses Selling, General and Administrative Expense DEFERRED TAX ASSETS Deferred tax asset Deferred Income Tax Assets, Net NWPL Rockies - Natural Gas Q2 2026 NWPL Rockies - Natural Gas Q2 2026 [Member] NWPL Rockies - Natural Gas Q2 2026 Depreciation, depletion and amortization Depreciation, depletion and amortization Depreciation, Depletion and Amortization Condensed Financial Statements [Table] Condensed Financial Statements [Table] OTHER NONCURRENT ASSETS Other noncurrent assets Other assets Other Assets, Noncurrent Interest Interest Payable, Current Entity Central Index Key Entity Central Index Key PEO Name PEO Name Total operating revenues Segment operating revenues Total operating revenues Revenues Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Supplemental Cash Flow Elements [Abstract] Supplemental Cash Flow Elements [Abstract] Finished goods Inventory, Finished Goods, Gross Fair value of derivative contracts Business Combination, Recognized Liability Assumed, Noncurrent Liabilities, Fair Value Of Derivative Contracts Business Combination, Recognized Liability Assumed, Noncurrent Liabilities, Fair Value Of Derivative Contracts Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Allowances of credit losses Allowance For Credit Loss, Due From Joint Ventures Allowance For Credit Loss, Due From Joint Ventures NWPL Rockies - Natural Gas 2027 NWPL Rockies - Natural Gas 2027 [Member] NWPL Rockies - Natural Gas 2027 Revolving Credit Facility Revolving Credit Facility Revolving Credit Facility [Member] Write-off of unamortized debt issuance costs Deferred Debt Issuance Cost, Writeoff Excise tax on share repurchases Noncash Financing Activities, Excise Tax On Share Repurchases To Be Paid Noncash Financing Activities, Excise Tax On Share Repurchases To Be Paid Schedule of Defined Benefit Plans Disclosures [Table] Defined Benefit Plan [Table] Arrangement Duration Trading Arrangement Duration Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Advanced payments Contract with Customer, Liability, Current Segments [Axis] Segments [Axis] Schedule of Fair Value of Derivatives Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Exercise Price Award Exercise Price Entity Filer Category Entity Filer Category Class of Stock [Domain] Class of Stock [Domain] Local Phone Number Local Phone Number MMBtu per day (in millions of BTU) Derivative, Nonmonetary Notional Amount, Energy Measure Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Adjustment to the preliminary purchase price allocation Equity Method Investment, Preliminary Purchase Price Allocation, Measurement Period Adjustment Equity Method Investment, Preliminary Purchase Price Allocation, Measurement Period Adjustment Other, net Payment for (Proceeds from) Other Investing Activity Subsequent Event Type [Axis] Subsequent Event Type [Axis] Premiums due on commodity derivative contracts Premiums Due On Derivative Contracts, Current Premiums Due On Derivative Contracts, Current Cash Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent Long-term debt, net Long-term debt, net Long-term debt Long-Term Debt, Excluding Current Maturities Credit Facility [Axis] Credit Facility [Axis] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Balance Sheet Location [Axis] Statement of Financial Position Location, Balance [Axis] Net periodic benefit costs: Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] Debt Instrument [Axis] Debt Instrument [Axis] Operating costs Oil and Gas, Production Cost, Period Cost PENSION AND POSTRETIREMENT BENEFIT PLANS Retirement Benefits [Text Block] Business Combination [Line Items] Business Combination [Line Items] Loss on early extinguishment of debt Net loss on early extinguishment of debt Loss on early extinguishment of debt Gain (Loss) on Extinguishment of Debt Contingent liability Equity Method Investments, Contingent Liabilities, Noncurrent Equity Method Investments, Contingent Liabilities, Noncurrent Credit Facility [Domain] Credit Facility [Domain] Fair value of commodity derivative contracts Derivative Liability, Current Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Entity Address, Address Line One Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Two Repurchases of common stock Total Value of Shares Purchased Treasury Stock, Value, Acquired, Cost Method Number of offshore platforms with decommissioning obligations defaulted Number Of Offshore Platforms With Decommissioning Obligations Defaulted Number Of Offshore Platforms With Decommissioning Obligations Defaulted Accumulated Other Comprehensive Income AOCI Attributable to Parent [Member] Interest rate Debt instrument, interest rate, stated percentage Debt Instrument, Interest Rate, Stated Percentage Investment, Name [Axis] Investment, Name [Axis] Operating lease liability Operating Lease, Liability, Noncurrent Emission reduction credits Emission Reduction Credits, Noncurrent Emission Reduction Credits, Noncurrent Issuance of shares for stock-based compensation awards Stock Issued Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract] Ownership [Axis] Ownership [Axis] DERIVATIVES Derivative Instruments and Hedging Activities Disclosure [Text Block] Amortization of prior service cost credit Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Dividend equivalents for stock-based compensation awards Dividends Equivalents For Stock-Based Compensation Awards Dividends Equivalents For Stock-Based Compensation Awards Gross Amounts at Fair Value Derivative Asset, Subject to Master Netting Arrangement, before Offset Fair Value as of Grant Date Award Grant Date Fair Value Entity Registrant Name Entity Registrant Name Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Compensation-related liabilities Deferred Compensation Liability, Classified, Noncurrent Net periodic benefit costs Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Schedule of Long-term Debt Schedule of Long-Term Debt Instruments [Table Text Block] Derivative Instruments and Hedging Activities Disclosures [Table] Derivative Instruments and Hedging Activities Disclosures [Table] Restricted/Performance stock units (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Total costs and other Costs and Expenses Document Quarterly Report Document Quarterly Report Schedule of Reconciliation of Capital Investments from Segments to Consolidated Segment, Reconciliation of Other Items from Segments to Consolidated [Table Text Block] Fair Value of Long-Term Debt Long-Term Debt, Fair Value Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Interest cost on projected benefit obligation Defined Benefit Plan, Interest Cost Related Party, Type [Axis] Related and Nonrelated Parties [Axis] Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Corporate/Eliminations/Other Corporate and Other Corporate And Reconciling Items [Member] Corporate And Reconciling Items Noncurrent liabilities Other Noncurrent Liabilities [Member] Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Restatement Determination Date: Restatement Determination Date [Axis] Non-PEO NEO Non-PEO NEO [Member] Letters of credit outstanding, amount Letters of Credit Outstanding, Amount Asset retirement obligations - current portion Asset Retirement Obligation, Current Liabilities Assumed Business Combination, Recognized Liability Assumed, Liability [Abstract] Segment Reporting, Revenue Reconciling Item [Line Items] Segment Reporting, Revenue Reconciling Item [Line Items] Name Trading Arrangement, Individual Name SoCal Border - Natural Gas Q3 2026 SoCal Border - Natural Gas Q3 2026 [Member] SoCal Border - Natural Gas Q3 2026 All Award Types Award Type [Domain] Debt redemption Payment for Debt Extinguishment or Debt Prepayment Cost Diluted (in dollars per share) Business Combination, Pro Forma Information, Pro Forma Earnings Per Share, Diluted Adjustments, Accrued liabilities Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Accrued Liabilities Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Accrued Liabilities Equity Awards Adjustments Equity Awards Adjustments [Member] Reconciliation of Revenue from Segments to Consolidated [Table] Reconciliation of Revenue from Segments to Consolidated [Table] Other non-cash charges to income, net Other Noncash Income (Expense) Debt instrument, repurchase amount Debt Instrument, Repurchase Amount Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Disaggregation of revenue Disaggregation of Revenue [Line Items] Postretirement and Other Benefit Plans Disclosure Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Compensation Amount Outstanding Recovery Compensation Amount Initial investment amount Debt Instrument, Face Amount Net income per share Business Acquisition, Pro Forma Earnings Per Share [Abstract] Business Acquisition, Pro Forma Earnings Per Share Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Midway Sunset Cogeneration Company Midway Sunset Cogeneration Company [Member] Midway Sunset Cogeneration Company Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Gross Amounts at Fair Value Estimate of Fair Value Measurement [Member] Offsetting Assets [Table] Offsetting Assets [Table] Retirement Plan Type [Domain] Retirement Plan Type [Domain] Fair value of share consideration Business Combination, Consideration Transferred, Equity Interest MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Name Awards Close in Time to MNPI Disclosures, Individual Name Non-energy operating costs Oil and Gas, Production Cost, Non-Energy Operating Costs Oil and Gas, Production Cost, Non-Energy Operating Costs Deferred tax asset Business Combination, Recognized Asset Acquired, Deferred Tax Asset Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Net changes in operating assets and liabilities Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital Brookfield BGTF Sierra Aggregator LLC [Member] BGTF Sierra Aggregator LLC REVENUES Revenues [Abstract] Other Other Accrued Liabilities, Noncurrent Remaining repurchase amount Debt Instrument, Remaining Repurchase Amount Debt Instrument, Remaining Repurchase Amount Share-based compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Condensed Financial Statements [Line Items] Condensed Financial Statements, Captions [Line Items] Adjustments, Total Liabilities Assumed Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Liability Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Liability Segments [Domain] Segments [Domain] Pending receivable Loss Contingency, Damages Sought, Value Line of credit facility, remaining borrowing capacity Line of Credit Facility, Remaining Borrowing Capacity Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Balance Sheet Location [Domain] Statement of Financial Position Location, Balance [Domain] Inventory Inventory Inventory, Net Minimum Minimum [Member] Amounts due to (from) affiliates Other Liabilities (Other Assets) Other Liabilities (Other Assets) Company Selected Measure Name Company Selected Measure Name Greenhouse gas liability Accrual for Environmental Loss Contingencies Fair Value Measurement [Domain] Fair Value Measurement [Domain] Net income Business Combination, Pro Forma Information, Pro Forma Income (Loss), after Tax Netting Derivative Liability, Subject to Master Netting Arrangement, Asset Offset Senior Notes (Unsecured) Senior Notes [Member] Preferred stock (20,000,000 shares authorized at $0.01 par value) no shares outstanding at March 31, 2026 and December 31, 2025 Preferred Stock, Value, Issued Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Accounts payable Accounts Payable, Current Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Combined Restricted Subsidiaries Combined Restricted Subsidiaries, Consolidating [Member] Combined Restricted Subsidiaries, Consolidating Total Liabilities Assumed Business Combination, Recognized Liability Assumed, Liability All Executive Categories All Executive Categories [Member] Released funds exceeding percentage Business Combination, Restricted Cash, Cumulative Abandonment And Habitat Restoration Expenditures, Percentage Business Combination, Restricted Cash, Cumulative Abandonment And Habitat Restoration Expenditures, Percentage Common stock (200,000,000 shares authorized at $0.01 par value) (110,905,146 and 110,645,691 shares issued; 88,794,901 and 88,754,165 shares outstanding at March 31, 2026 and December 31, 2025) Common Stock, Value, Issued California resources corporation California Resources Corporation [Member] California Resources Corporation LAWSUITS, CLAIMS, COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Total derivatives Derivative Assets (Liabilities), at Fair Value, Net Diluted (in shares) Weighted-average shares, diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted SUPPLEMENTAL ACCOUNT BALANCES Supplemental Information [Text Block] Supplemental Information Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Reconciliation of Assets from Segment to Consolidated [Table] Reconciliation of Assets from Segment to Consolidated [Table] Business Combination [Axis] Business Combination [Axis] Entity Small Business Entity Small Business Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] OTHER INFORMATION SUPPLEMENTAL INFORMATION [Abstract] Supplemental Information Preferred stock, outstanding shares (in shares) Preferred Stock, Shares Outstanding Adjustments, Net Assets Acquired Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred DEBT Long-Term Debt [Text Block] Document Transition Report Document Transition Report Other noncurrent assets Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent Interest in joint venture Equity Method Investment, Ownership Percentage Reportable Legal Entities Reportable Legal Entities [Member] Underlying Securities Award Underlying Securities Amount Adjustments, Fair value of derivative contracts Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Noncurrent Liabilities, Fair Value Of Derivative Contracts Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Noncurrent Liabilities, Fair Value Of Derivative Contracts Equity Component [Domain] Equity Component [Domain] Document Period End Date Document Period End Date PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount INCOME TAXES Income Tax Disclosure [Text Block] Unamortized premium Debt Instrument, Unamortized Premium Adjustments, Inventories Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Inventory Proceeds from Revolving Credit Facility Proceeds from Lines of Credit Contribution from noncontrolling interest Equity Method Investment, Initial Investment Contribution, Amount Equity Method Investment, Initial Investment Contribution, Amount 2034 Senior Notes 2034 Senior Notes [Member] 2034 Senior Notes Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Electricity revenue Sale Of Electricity [Member] This member represents electricity sales. Hedging Designation [Axis] Hedging Designation [Axis] Average Price Paid per Share (in dollar per share) Shares Acquired, Average Cost Per Share Document Type Document Type EARNINGS PER SHARE Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Elk Hills Elk Hills [Member] Elk Hills Product and Service [Axis] Product and Service [Axis] Derivative Contract [Domain] Derivative Contract [Domain] 2029 Senior Notes 2029 Senior Notes 2029 Senior Notes [Member] 2029 Senior Notes Issuance of common stock Proceeds from Issuance of Common Stock Common stock issued in connection with merger (in shares) Business Combination, Consideration Transferred, Equity Interest, Share Issued, Number Of Shares, Conversion Ratio Business Combination, Consideration Transferred, Equity Interest, Share Issued, Number Of Shares, Conversion Ratio Oil, natural gas and natural gas liquids sales Revenue from Contract with Customer, Excluding Assessed Tax Litigation Status [Domain] Litigation Status [Domain] All Individuals All Individuals [Member] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Capital investments Payments to Acquire Property, Plant, and Equipment Net amounts due from joint interest partners Accounts Receivable, After Allowance For Credit Loss, Due From Joint Venture, Current Accounts Receivable, After Allowance For Credit Loss, Due From Joint Venture, Current Name Forgone Recovery, Individual Name Sold Calls - Crude Oil 2028 Sold Calls - Crude Oil 2028 [Member] Sold Calls - Crude Oil 2028 Total current assets Total current assets Assets, Current Statistical Measurement [Axis] Statistical Measurement [Axis] Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Adjustments, Other long-term liabilities Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Liability, Noncurrent Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Liability, Noncurrent Stock repurchase program authorized amount Share Repurchase Program, Authorized, Amount Receivable from affiliate Other Receivables, Net, Current Current liabilities Accrued Liabilities [Member] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Adjustments, Total Assets Acquired Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Asset Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Asset Shares cancelled for taxes Payment, Tax Withholding, Share-Based Payment Arrangement Sold Calls - Crude Oil Q2 2026 Sold Calls - Crude Oil Q2 2026 [Member] Sold Calls - Crude Oil Q2 2026 Net settlements from commodity derivatives Payments (Proceeds) On Derivative Settlements The net payments (proceeds) on derivative settlements, which increase (reduce) net income and are thus added (deducted) when calculating cash provided by or used in operating activities. Business Combination, Goodwill, Reportable Segment Assignment [Table] Business Combination, Goodwill, Reportable Segment Assignment [Table] Greenhouse gas allowances Prepaid Green House Gas Allowances, Current Prepaid Green House Gas Allowances, Current Weighted-average price per MMBtu (in dollars per million of BTU) Underlying, Derivative Energy Measure Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] SoCal Border - Natural Gas 2028 SoCal Border - Natural Gas 2028 [Member] SoCal Border - Natural Gas 2028 Purchased Puts - Crude Oil Q3 2026 Purchased Puts - Crude Oil Q3 2026 [Member] Purchased Puts - Crude Oil Q3 2026 Schedule of Open Derivative Contracts Schedule of Derivative Instruments [Table Text Block] Aera Energy, LLC Aera Energy, LLC [Member] Aera Energy, LLC Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Schedule of Reconciliation of Operating Profit (Loss) from Segments to Consolidated Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] Other comprehensive loss, net of tax Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent CURRENT LIABILITIES Liabilities, Current [Abstract] Performance stock units Shares issuable upon settlement of PSUs Performance Stock Units [Member] Performance Stock Units Total operating expenses Operating Expenses Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Adjustments, Other current assets Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Asset, Current Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Asset, Current Common stock per share fair value (in dollars per share) Business Combination, Price Per Share Total operating revenue Business Combination, Pro Forma Information, Pro Forma Revenue Accounts payable Business Combination, Recognized Liability Assumed, Accounts Payable, Current Diluted (in dollars per share) Earnings Per Share, Diluted Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Trade receivables Accounts Receivable, after Allowance for Credit Loss, Current Interest income Interest Income, Operating Title of 12(b) Security Title of 12(b) Security Other comprehensive income (loss): Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Treasury stock (in shares) Treasury Stock, Common, Shares Net (loss) income per share Earnings Per Share [Abstract] Earnings Per Share [Abstract] Non-operating (loss) income Nonoperating Income (Expense) Consolidation Items [Domain] Consolidation Items [Domain] Derivative Liability, Statement of Financial Position [Extensible Enumeration] Derivative Liability, Statement of Financial Position [Extensible Enumeration] Distribution from unconsolidated subsidiary Proceeds from Equity Method Investment, Distribution, Return of Capital Purchased Puts - Crude Oil 2028 Purchased Puts - Crude Oil 2028 [Member] Purchased Puts - Crude Oil 2028 Weighted-average price per barrel (in dollars per barrel) Underlying, Derivative Volume INVESTMENT IN UNCONSOLIDATED SUBSIDIARIES AND RELATED PARTY TRANSACTIONS Equity Method Investments and Joint Ventures Disclosure [Text Block] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Oil Oil and Condensate [Member] Other Stockholders' Equity, Other Total Number of Shares Purchased (in shares) Treasury Stock, Shares, Acquired Decommissioning liability, current Decommissioning Liability, Current Decommissioning Liability, Current Swaps - Crude Oil Q3 2026 Swaps - Crude Oil Q3 2026 [Member] Swaps - Crude Oil Q3 2026 Award Timing Disclosures [Line Items] Schedule of Inventories Schedule of Inventory, Current [Table Text Block] Service cost - benefits earned during the period Defined Benefit Plan, Service Cost Principal amount Long-Term Debt, Gross Compensation-related liabilities Employee-related Liabilities, Current Total property, plant and equipment, net Total property, plant and equipment, net Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization STOCKHOLDERS' EQUITY Equity [Text Block] ABR Applicable Margin ABR Applicable Margin [Member] ABR Applicable Margin NET (LOSS) INCOME Net (loss) income Net (loss) income Net Income (Loss) Attributable to Parent Net (loss) gain from commodity sales derivatives Net (loss) gain from commodity sales derivatives Gain (Loss) on Derivative Instruments, Net, Pretax Subsequent Event [Table] Subsequent Event [Table] Expiration Date Trading Arrangement Expiration Date NONCURRENT LIABILITIES Liabilities, Noncurrent [Abstract] Pending Litigation Pending Litigation [Member] Swaps - Crude Oil Q2 2026 Swaps - Crude Oil Q2 2026 [Member] Swaps - Crude Oil Q2 2026 Offshore platforms with decommissioning obligations defaulted percentage Offshore Platforms With Decommissioning Obligations Defaulted, Ownership Percent Offshore Platforms With Decommissioning Obligations Defaulted, Ownership Percent Other Other Accrued Liabilities, Current Schedule of Differences Between the U.S. Federal Income Tax Rate and the Company's Effective Tax Rate Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] STOCKHOLDERS' EQUITY Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Schedule of Equity Method Investment Unconsolidated Subsidiary Equity Method Investments [Table Text Block] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Other revenue Revenue Not from Contract with Customer Preferred stock, authorized shares (in shares) Preferred Stock, Shares Authorized Repurchases of common stock Payments for Repurchase of Common Stock Adoption Date Trading Arrangement Adoption Date Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Entity Current Reporting Status Entity Current Reporting Status Eliminations Consolidation, Eliminations [Member] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] OPERATING (LOSS) INCOME Segment profit or (loss) Operating Income (Loss) Consolidated Entities [Domain] Consolidated Entities [Domain] Line of Credit Line of Credit [Member] Purchased Puts - Crude Oil 2027 Purchased Puts - Crude Oil 2027 [Member] Purchased Puts - Crude Oil 2027 Retained earnings Retained Earnings (Accumulated Deficit) Schedule of Shares Repurchased Class of Treasury Stock [Table Text Block] Equity method investments, distributed to satisfy future capital calls Equity Method Investments, Amounts That May Be Distributed To Satisfy Future Capital Calls Equity Method Investments, Amounts That May Be Distributed To Satisfy Future Capital Calls Adjustments to reconcile net income to net cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Noncash Item [Abstract] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Executive Category: Executive Category [Axis] Payments under dispute Payments for Other Fees Asset retirement obligations Asset retirement obligations Asset Retirement Obligations, Noncurrent Gas processing costs Oil and Gas, Production Cost, Gas Processing Costs Oil and Gas, Production Cost, Gas Processing Costs Other operating expenses, net Other Operating Income (Expense), Net Interest and debt expense, net Interest And Debt Expense, Net Interest And Debt Expense, Net Revenue from marketing of purchased commodities Costs related to marketing of purchased commodities Marketing of Purchased Commodities [Member] Marketing of Purchased Commodities Class of Stock [Axis] Class of Stock [Axis] Current Fiscal Year End Date Current Fiscal Year End Date Subsequent Event Type [Domain] Subsequent Event Type [Domain] Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Retirement Plan Type [Axis] Retirement Plan Type [Axis] Schedule of Condensed Financial Statements Condensed Financial Statements [Table Text Block] Other non-operating income, net Other non-operating expenses Other Nonoperating Income (Expense) Statement [Table] Statement [Table] Net Fair Value Derivative Liability Schedule of Merger Consideration and Preliminary Purchase Price Allocation Business Combination [Table Text Block] Natural gas Natural Gas, Production [Member] Deferred income tax (benefit) provision Deferred income tax (benefit) provision Deferred Income Tax Expense (Benefit) CASH FLOW FROM FINANCING ACTIVITIES Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Variable Rate [Domain] Variable Rate [Domain] Net Assets Acquired Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less) Antidilutive shares (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Weighted-average common shares outstanding Denominator for Diluted EPS Weighted Average Number of Shares Outstanding, Diluted [Abstract] Net settlements and premiums Gain (Loss) on Sale of Commodity Contracts All Adjustments to Compensation All Adjustments to Compensation [Member] Fixed rate debt Long-Term Debt, Percentage Bearing Fixed Interest, Amount Amendment Flag Amendment Flag Postretirement Benefit Other Postretirement Benefits Plan [Member] Oil and Natural Gas Oil and Natural Gas Oil And Natural Gas Segment [Member] Oil And Natural Gas Segment Treasury stock (22,110,245 shares held at cost at March 31, 2026 and 21,891,526 shares held at cost at December 31, 2025) Treasury Stock, Common, Value Other Commitments [Table] Other Commitments [Table] Termination Date Trading Arrangement Termination Date Net cash used in financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Deferred financing costs - Revolving Credit Facility Debt Issuance Costs, Noncurrent, Net Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Measure: Measure [Axis] Carbon TerraVault JV Carbon TerraVault Joint Venture [Member] Carbon TerraVault Joint Venture Basic (in shares) Weighted-average shares, basic (in shares) Weighted Average Number of Shares Outstanding, Basic Share repurchase program, remaining authorized, amount Share Repurchase Program, Remaining Authorized, Amount SUPPLEMENTAL CASH FLOW INFORMATION Cash Flow, Supplemental Disclosures [Text Block] Costs of sales Cost of Product and Service Sold Schedule of Calculation of Basic and Diluted EPS Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Subsequent Events [Abstract] Subsequent Events [Abstract] Segment Reporting [Abstract] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount NON-OPERATING (EXPENSES) INCOME Nonoperating Income (Expense) [Abstract] Jay A. Bys [Member] Jay A. Bys Entity Tax Identification Number Entity Tax Identification Number Business acquisition, percentage of ownership after transaction Business Acquisition, Percentage Of Ownership After Transaction Business Acquisition, Percentage Of Ownership After Transaction Number of oil and gas wells abandoned Number Of Oil And Gas Wells Abandoned Number Of Oil And Gas Wells Abandoned Adjustments, Accounts payable Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Accounts Payable, Current Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Accounts Payable, Current Supplemental disclosure of non-cash investing and financing activities Supplemental Disclosure of Non-cash Investing and Financing Activities [Abstract] Supplemental Disclosure of Non-cash Investing and Financing Activities Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Consolidated Entities [Axis] Consolidated Entities [Axis] Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, issued shares (in shares) Common Stock, Shares, Issued Derivatives Derivative Instruments and Hedging Activities Disclosures [Line Items] Income tax receivable Income Taxes Receivable, Current Potential common shares, if dilutive: Dilutive Securities, Effect on Basic Earnings Per Share [Abstract] Total Dividend Payments of Dividends Interest expense Interest Expense, Nonoperating Trading Arrangement: Trading Arrangement [Axis] Fair value of commodity derivative contracts Derivative Asset, Current Total Shareholder Return Amount Total Shareholder Return Amount Basic (in dollars per share) Business Combination, Pro Forma Information, Pro Forma Earnings Per Share, Basic Schedule of Other Noncurrent Assets Schedule of Other Assets, Noncurrent [Table Text Block] Contributions (distributions) Payments To Acquire (Proceeds From) Equity Method Investments Payments To Acquire (Proceeds From) Equity Method Investments Netting Derivative Asset, Subject to Master Netting Arrangement, Liability Offset SUBSEQUENT EVENTS Subsequent Events [Text Block] Insider Trading Arrangements [Line Items] Security Exchange Name Security Exchange Name Schedule of Reconciliation of Revenue from Segments to Consolidated Reconciliation of Revenue from Segments to Consolidated [Table Text Block] SoCal Border - Natural Gas Q4 2026 SoCal Border - Natural Gas Q4 2026 [Member] SoCal Border - Natural Gas Q4 2026 Other revenue Product and Service, Other [Member] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Line of credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Adjustments, Accounts receivable Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Receivable, Current Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Receivable, Current Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Berry merger Berry Merger [Member] Berry Merger Prepaid expenses Prepaid Expense, Current Repurchase face amount Debt Instrument, Repurchased Face Amount OPERATING EXPENSES Operating Expenses [Abstract] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Adjustments, Asset retirement obligations Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Noncurrent Liabilities, Asset Retirement Obligations Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Noncurrent Liabilities, Asset Retirement Obligations Fair Value of Derivatives Offsetting Assets [Line Items] Issuance of common stock Stock Issued During Period, Value, New Issues Statement [Line Items] Statement [Line Items] Consolidation Items [Axis] Consolidation Items [Axis] Variable Rate [Axis] Variable Rate [Axis] Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Cash and cash equivalents Cash and Cash Equivalent Cost incurred, abandonment cost Oil and Gas, Cost Incurred, Asset Retirement Obligation Variable rate debt Long-Term Debt, Percentage Bearing Variable Interest, Amount Subsequent Event [Line Items] Subsequent Event [Line Items] Common Stock Common stock Common Stock [Member] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member] Decrease in cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation