Asset Retirement Obligations (Tables)

12 Months Ended

Dec. 31, 2020

Asset Retirement Obligation Disclosure [Abstract]

Schedule of changes in asset retirement obligations

The following table summarizes the changes in the Company’s asset retirement obligations:

	December 31,
	2020		2019
	(In thousands)
Asset retirement obligations:
Beginning asset retirement obligations	$	235,053	$	151,953
Additions associated with Equatorial Guinea - Ceiba Field and Okume Complex	—		114,395
Liabilities incurred during period	3,436		11,218
Liabilities settled during period	(2,782)		(7,156)
Revisions in estimated retirement obligations	(3,736)		(49,471)
Accretion expense	19,450		14,114
Ending asset retirement obligations	$	251,421	$	235,053