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Asset Retirement Obligations (Tables) | 12 Months Ended
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Dec. 31, 2023
Asset Retirement Obligation Disclosure [Abstract] |
Schedule of Changes to the Company's Before-tax Asset Retirement Obligation | The following table indicates the changes to the company’s before-tax asset retirement obligations in 2023, 2022 and 2021:
| 2023 |  |  | 2022 |  | 2021
Balance at January 1 | $ | 12,701 |  |  |  | $ | 12,808 |  |  | $ | 13,616 |
Liabilities assumed in the PDC acquisition | 220 |  |  |  | — |  |  | — |
Liabilities incurred | 183 |  |  |  | 9 |  |  | 31 |
Liabilities settled | (1,565) |  |  |  | (1,281) |  |  | (1,887) |
Accretion expense | 593 |  |  |  | 560 |  |  | 616 |
Revisions in estimated cash flows | 1,701 |  |  |  | 605 |  |  | 432 |
Balance at December 31 | $ | 13,833 |  |  |  | $ | 12,701 |  |  | $ | 12,808 |

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- Definition Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481850/410-20-50-1 + Details
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