Asset Retirement Obligations (Tables)

6 Months Ended

Jun. 30, 2017

Asset Retirement Obligation Disclosure [Abstract]

Schedule Of Asset Retirement Obligations

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

	Six Months Ended
	June 30,
	2017			2016
	(In thousands)
ARO liability, January 1:	$	70,170		$	98,297
Accretion of discount	1,458			1,513
Liability incurred	1,018			212
Liability settled	(1,224		)	(605		)
Liability sold (1)	(1,412		)	(10,308		)
Revision of estimates (2)	39			(18,183		)
ARO liability, June 30:	70,049			70,926
Less current portion	2,825			3,523
Total long-term ARO	$	67,224		$	67,403

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(1) We sold our interest in a number of non-core wells to unaffiliated third-parties during the first six months of 2017 and 2016, respectively.

(2) Plugging liability estimates were revised in both 2017 and 2016 for updates in the cost of services used to plug wells over the preceding year. We had various upward and downward adjustments.