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Asset Retirement Obligations (Tables) | 9 Months Ended
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Sep. 30, 2023
Asset Retirement Obligation Disclosure [Abstract] |
Asset Retirement Obligation | A reconciliation of our liability for plugging and abandonment costs for the nine months ended September 30, 2023 and the year ended December 31, 2022 is as follows (in thousands):
| Nine Months Ended September 30, 2023 |  |  | Year Ended December 31, 2022 |
Beginning of period | $ | 109,851 |  |  | $ | 95,836 |
Liabilities incurred |  | 2,209 |  |  |  | 2,589 |
Liabilities settled |  | (2,606 | ) |  |  | (10,650 | )
Accretion expense |  | 4,465 |  |  |  | 6,569 |
Change in estimate |  | 168 |  |  |  | 15,507 |
End of period |  | 114,087 |  |  |  | 109,851 |
Less current portion |  | (4,570 | ) |  |  | (4,570 | )
Long-term asset retirement obligations | $ | 109,517 |  |  | $ | 105,281 |

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- Definition Tabular disclosure of the carrying amount of a liability for asset retirement obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Paragraph 1 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481850/410-20-50-1 + Details
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