Asset Retirement Obligations (Tables)

9 Months Ended

Sep. 30, 2021

Asset Retirement Obligation Disclosure [Abstract]

Activity related to asset retirement obligations

Activity related to the Company’s asset retirement obligations is as follows:

(In thousands)	Nine Months Ended  September 30, 2021
Balance at beginning of period	$	85,989
Liabilities incurred	2,924
Liabilities settled	(135)
Accretion expense	3,454
Balance at end of period	92,232
Less: current asset retirement obligations	(500)
Noncurrent asset retirement obligations	$	91,732