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SEGMENT INFORMATION - Industry Segment Results (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Segment Reporting Information [Line Items] |  |  |  |  |
(Loss) Gain on Commodity Derivative Instruments | $ 421,121 | $ 14,095 | $ (107,099) | $ 21,623 |
Other Revenue and Operating Income | 45,864 | 60,086 | 93,828 | 96,861 |
Total Revenue and Other Operating Income | 962,422 | 321,443 | 1,044,811 | 705,995 |
Lease Operating Expense | 26,256 | 17,819 | 49,588 | 35,545 |
Production, Ad Valorem and Other Fees | 9,668 | 6,638 | 16,941 | 14,263 |
Depreciation, Depletion and Amortization | 152,595 | 117,541 | 279,657 | 236,191 |
Interest Expense | 44,041 | 38,634 | 85,652 | 76,075 |
Other Segment Items | 47,268 | 64,345 | 108,019 | 164,486 |
Total Costs and Expenses | 376,781 | 336,686 | 731,969 | 714,919 |
Income (Loss) Before Income Tax | 585,641 | (15,243) | 312,842 | (8,924) |
Segment Assets | 8,987,867 | 8,602,954 | 8,987,867 | 8,602,954 | $ 8,511,903
Capital Expenditures | 113,565 | 151,916 | 245,030 | 320,100 |
Investments in unconsolidated equity affiliates | 19,178 | 15,394 | 19,178 | 15,394 |
NRG Business Marketing LLC |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total Revenue and Other Operating Income |  |  |  | 67,854 |
Natural Gas, NGLs and Oil Revenue |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | 485,029 | 236,233 | 1,036,123 | 562,205 |
Natural Gas, NGLs and Oil Revenue | Citadel Energy Marketing, LLC |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | 59,948 |  | 124,748 |  |
Total Revenue and Other Operating Income |  | 28,684 |  |  |
Natural Gas, NGLs and Oil Revenue | NRG Business Marketing LLC |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | 58,792 |  |  |  |
Natural Gas, NGLs and Oil Revenue | DTE Energy Trading, Inc. |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | 56,365 |  |  |  |
Purchased Gas Revenue |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | 10,408 | 11,029 | 21,959 | 25,306 |
Transportation, Gathering and Compression |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Transportation, Gathering and Compression | 96,953 | 91,709 | 192,112 | 188,359 |
Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | 512,869 | 263,703 | 1,092,352 | 619,846 |
Operating Segments | Enviromental Attributes |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Other Revenue and Operating Income | 20,400 |  |  |  |
Operating Segments | Shale |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
(Loss) Gain on Commodity Derivative Instruments | (33,256) | 101,919 | (135,956) | 152,698 |
Other Revenue and Operating Income | 17,432 | 16,441 | 34,270 | 32,335 |
Total Revenue and Other Operating Income | 435,794 | 333,958 | 857,487 | 693,393 |
Lease Operating Expense | 20,214 | 12,309 | 37,433 | 24,478 |
Production, Ad Valorem and Other Fees | 8,209 | 5,411 | 13,709 | 11,345 |
Depreciation, Depletion and Amortization | 131,268 | 97,909 | 237,628 | 197,386 |
Interest Expense | 0 | 0 | 0 | 0 |
Other Segment Items | 0 | 0 | 0 | 0 |
Total Costs and Expenses | 239,740 | 191,115 | 446,869 | 389,221 |
Income (Loss) Before Income Tax | 196,054 | 142,843 | 410,618 | 304,172 |
Segment Assets | 7,143,060 | 6,676,756 | 7,143,060 | 6,676,756 |
Capital Expenditures | 85,556 | 138,917 | 213,235 | 291,791 |
Operating Segments | Shale | Natural Gas, NGLs and Oil Revenue |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | 451,618 | 215,598 | 959,173 | 508,360 |
Operating Segments | Shale | Purchased Gas Revenue |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | 0 | 0 | 0 | 0 |
Operating Segments | Shale | Transportation, Gathering and Compression |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Transportation, Gathering and Compression | 80,049 | 75,486 | 158,099 | 156,012 |
Operating Segments | Coalbed Methane |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
(Loss) Gain on Commodity Derivative Instruments | (2,133) | 8,115 | (9,086) | 11,961 |
Other Revenue and Operating Income | 0 | 0 | 0 | 0 |
Total Revenue and Other Operating Income | 31,047 | 28,600 | 67,372 | 65,309 |
Lease Operating Expense | 6,016 | 5,363 | 11,985 | 10,738 |
Production, Ad Valorem and Other Fees | 1,452 | 1,213 | 3,218 | 2,888 |
Depreciation, Depletion and Amortization | 14,806 | 14,588 | 28,618 | 28,860 |
Interest Expense | 0 | 0 | 0 | 0 |
Other Segment Items | 0 | 0 | 0 | 0 |
Total Costs and Expenses | 38,601 | 37,143 | 76,931 | 74,147 |
Income (Loss) Before Income Tax | (7,554) | (8,543) | (9,559) | (8,838) |
Segment Assets | 923,635 | 939,831 | 923,635 | 939,831 |
Capital Expenditures | 26,505 | 7,760 | 29,248 | 16,428 |
Operating Segments | Coalbed Methane | Natural Gas, NGLs and Oil Revenue |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | 33,180 | 20,485 | 76,458 | 53,348 |
Operating Segments | Coalbed Methane | Purchased Gas Revenue |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | 0 | 0 | 0 | 0 |
Operating Segments | Coalbed Methane | Transportation, Gathering and Compression |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Transportation, Gathering and Compression | 16,327 | 15,979 | 33,110 | 31,661 |
Other |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
(Loss) Gain on Commodity Derivative Instruments | 456,510 | (95,939) | 37,943 | (143,036) |
Other Revenue and Operating Income | 28,432 | 43,645 | 59,558 | 64,526 |
Total Revenue and Other Operating Income | 495,581 | (41,115) | 119,952 | (52,707) |
Lease Operating Expense | 26 | 147 | 170 | 329 |
Production, Ad Valorem and Other Fees | 7 | 14 | 14 | 30 |
Depreciation, Depletion and Amortization | 6,521 | 5,044 | 13,411 | 9,945 |
Interest Expense | 44,041 | 38,634 | 85,652 | 76,075 |
Other Segment Items | 47,268 | 64,345 | 108,019 | 164,486 |
Total Costs and Expenses | 98,440 | 108,428 | 208,169 | 251,551 |
Income (Loss) Before Income Tax | 397,141 | (149,543) | (88,217) | (304,258) |
Equity in earnings (loss) of unconsolidated affiliates | 605 | 227 | 548 | 477 |
Segment Assets | 921,172 | 986,367 | 921,172 | 986,367 |
Capital Expenditures | 1,504 | 5,239 | 2,547 | 11,881 |
Other | Natural Gas, NGLs and Oil Revenue |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | 231 | 150 | 492 | 497 |
Other | Purchased Gas Revenue |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | 10,408 | 11,029 | 21,959 | 25,306 |
Other | Transportation, Gathering and Compression |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Transportation, Gathering and Compression | 577 | 244 | $ 903 | 686 |
Other | Enviromental Attributes |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Other Revenue and Operating Income | $ 43,285 | $ 32,877 |  | $ 45,646 |

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