Asset Retirement Obligations (Tables)

3 Months Ended

Mar. 31, 2016

Asset Retirement Obligation Disclosure [Abstract]

Schedule Of Asset Retirement Obligations

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

	Three Months Ended
	March 31,
	2016			2015
	(In thousands)
ARO liability, January 1:	$	98,297		$	100,567
Accretion of discount	879			932
Liability incurred	90			5,174
Liability settled	(375		)	(760		)
Liability sold (1)	(9,950		)	(240		)
Revision of estimates (2)	(18,182		)	(10,232		)
ARO liability, March 31:	70,759			95,441
Less current portion	3,499			3,467
Total long-term ARO	$	67,260		$	91,974

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(1) We sold approximately 1,000 wells to unaffiliated third-parties during the first quarter of 2016.

(2) Plugging liability estimates were revised in both 2016 and 2015 for updates in the cost of services used to plug wells over the preceding year. We had various upward and downward adjustments.