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Asset Retirement Obligations | 9 Months Ended
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Sep. 30, 2025
Asset Retirement Obligation Disclosure [Abstract] |
Asset Retirement Obligations | (6) ASSET RETIREMENT OBLIGATIONS Activity related to our liability for plugging and abandonment costs for the nine months ended September 30, 2025 and the year ended December 31, 2024 is as follows (in thousands):
| Nine Months Ended September 30, 2025 |  |  | Year Ended December 31, 2024 |
Beginning of period | $ | 133,767 |  |  | $ | 117,429 |
Liabilities incurred |  | 3,126 |  |  |  | 3,871 |
Liabilities settled |  | (724 | ) |  |  | (4,655 | )
Accretion expense |  | 5,742 |  |  |  | 7,148 |
Change in estimate |  | (119 | ) |  |  | 9,974 |
End of period |  | 141,792 |  |  |  | 133,767 |
Less current portion |  | (1,189 | ) |  |  | (1,189 | )
Long-term asset retirement obligations | $ | 140,603 |  |  | $ | 132,578 |

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- Definition The entire disclosure for an asset retirement obligation and the associated long-lived asset. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481850/410-20-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/410-20/tableOfContent Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -SubTopic 20 -Topic 410 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481850/410-20-50-2 + Details
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