Asset Retirement Obligations (Tables)

12 Months Ended

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