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Natural Gas and Oil Exploration, Development and Production Activities | 9 Months Ended
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Sep. 30, 2025
Extractive Industries [Abstract] |
Natural Gas and Oil Exploration, Development and Production Activities | (15) NATURAL GAS AND OIL EXPLORATION, DEVELOPMENT AND PRODUCTION ACTIVITIES Capitalized Costs and Accumulated Depreciation, Depletion and Amortization (a)
| September 30, 2025 |  |  | December 31, 2024 |
| (in thousands) |
Natural gas properties: |  |  |  |  |
Properties subject to depletion | $ | 11,450,212 |  |  | $ | 11,058,771 |
Unproved properties |  | 844,308 |  |  |  | 819,656 |
Total |  | 12,294,520 |  |  |  | 11,878,427 |
Accumulated depletion and depreciation |  | (5,667,298 | ) |  |  | (5,456,727 | )
Net capitalized costs | $ | 6,627,222 |  |  | $ | 6,421,700 |
(a) Includes capitalized asset retirement costs and the associated accumulated amortization. Costs Incurred for Property Acquisition, Exploration and Development (b)
| Nine Months Ended September 30, 2025 |  |  | Year Ended December 31, 2024 |
| (in thousands) |
Acquisitions: |  |  |  |  |
Acreage purchases | $ | 43,006 |  |  | $ | 57,869 |
Development |  | 433,417 |  |  |  | 577,093 |
Exploration: |  |  |  |  |
Drilling |  | 4,593 |  |  |  | 12,569 |
Expense |  | 21,426 |  |  |  | 25,489 |
Stock-based compensation expense |  | 998 |  |  |  | 1,354 |
Pipeline and facilities: |  |  |  |  |
Development |  | 6,922 |  |  |  | 4,336 |
Subtotal |  | 510,362 |  |  |  | 678,710 |
Asset retirement obligations |  | 3,007 |  |  |  | 13,845 |
Total costs incurred | $ | 513,369 |  |  | $ | 692,555 |
(b) Includes costs incurred whether capitalized or expensed.

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- Definition The entire disclosure for oil- and gas-producing activities considered to be supplementary information. Includes, but is not limited to, proved reserve quantity, cost incurred and capitalized, result of operation, standardized measure, and change in standardized measure of discounted future cash flow. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 932 -SubTopic 270 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478688/932-270-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 932 -SubTopic 235 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477215/932-235-50-10 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 932 -SubTopic 235 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 12.A.3.e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477759/932-235-S99-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 932 -SubTopic 235 -Name Accounting Standards Codification -Section S50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479097/932-235-S50-3 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 932 -SubTopic 235 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477215/932-235-50-8 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 932 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/932/tableOfContent Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 932 -SubTopic 235 -Name Accounting Standards Codification -Section 50 -Paragraph 1C -Publisher FASB -URI https://asc.fasb.org/1943274/2147477215/932-235-50-1C Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 932 -SubTopic 235 -Name Accounting Standards Codification -Section 50 -Paragraph 36 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477215/932-235-50-36 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 932 -SubTopic 235 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477215/932-235-50-8 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 932 -SubTopic 235 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477215/932-235-50-5 + Details
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