Asset Retirement Obligations (Tables)

12 Months Ended

Dec. 31, 2020

Asset Retirement Obligation

Schedule of Change in Asset Retirement Obligation

	Year Ended		Year Ended
	December 31,		December 31,
	2020		2019
(In thousands)
Balance at beginning of period (including current portion)	$	252,798	$	243,417
Accretion expense		19,887		20,548
Obligations of divested operations		(15,455)		(12,185)
Adjustments to the liability from changes in estimates		14,889		11,438
Liabilities settled		(14,355)		(10,420)
Balance at period end	$	257,764	$	252,798
Current portion included in accrued expenses		(27,032)		(10,366)
Noncurrent liability	$	230,732	$	242,432