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Asset Retirement Obligations (Tables)
12 Months Ended
Dec. 31, 2024
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 2024, 2023 and 2022:
202420232022
Balance at January 1$13,833 $12,701 $12,808 
Liabilities assumed in the PDC acquisition 220  
Liabilities incurred83 183 
Liabilities settled(2,083)(1,471)(1,102)
Reduction due to asset sales(171)(94)(179)
Accretion expense588 593 560 
Revisions in estimated cash flows417 1,701 605 
Balance at December 31$12,667 $13,833 $12,701