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Asset Retirement Obligations (Tables) | 3 Months Ended
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Mar. 31, 2022
Asset Retirement Obligation Disclosure [Abstract] |
Asset Retirement Obligation | A reconciliation of our liability for plugging and abandonment costs for the three months ended March 31, 2022 and the year ended December 31, 2021 is as follows (in thousands):
|  | Three Months Ended March 31, 2022 |  |  | Year Ended December 31, 2021 |
Beginning of period |  | $ | 95,836 |  |  | $ | 79,822 |
Liabilities incurred |  |  | 1,339 |  |  |  | 73 |
Liabilities settled |  |  | (1,809 | ) |  |  | (8,197 | )
Accretion expense |  |  | 1,520 |  |  |  | 5,511 |
Change in estimate |  |  | 37 |  |  |  | 18,627 |
End of period |  |  | 96,923 |  |  |  | 95,836 |
Less current portion |  |  | (5,310 | ) |  |  | (5,310 | )
Long-term asset retirement obligations |  | $ | 91,613 |  |  | $ | 90,526 |

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 + Details
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