Asset Retirement Obligations (Tables)

12 Months Ended

Dec. 31, 2021

Asset Retirement Obligation Disclosure [Abstract]

Asset Retirement Obligation

The following is a reconciliation of our liability for plugging and abandonment costs as of December 31, 2021 and 2020 (in thousands):

	2021			2020
Beginning of period	$	79,822		$	251,076
Liabilities incurred		73			1,483
Acquisitions		—			123
Liabilities settled		(8,197	)		(4,634	)
Disposition of wells		—			(176,748	)
Accretion expense		5,511			7,518
Change in estimate		18,627			1,004
End of period		95,836			79,822
Less current portion		(5,310	)		(6,689	)
Long-term asset retirement obligations	$	90,526		$	73,133