Asset Retirement Obligations (Tables)

12 Months Ended

Dec. 31, 2019

Asset Retirement Obligation Disclosure [Abstract]

Schedule Of Asset Retirement Obligations [Table Text Block]

The following table shows certain information about our AROs for the periods indicated:

	2019		2018
	(In thousands)
ARO liability, January 1:	$	64,208	$	69,444
Accretion of discount	2,343		2,393
Liability incurred	4,373		2,632
Liability settled	(3,261)		(4,493)
Liability sold	(2,953)		(281)
Revision of estimates (1)	1,917		(5,487)
ARO liability, December 31:	66,627		64,208
Less current portion	2,920		1,437
Total long-term ARO liability	$	63,707	$	62,771

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1.Plugging liability estimates were revised in both 2019 and 2018 for updates in the cost of services used to plug wells over the preceding year. We had various upward and downward adjustments and changes in estimated timing of cash flows.