Asset Retirement Obligations

6 Months Ended

Jun. 30, 2013

Asset Retirement Obligations [Abstract]

(4) Asset Retirement Obligations

The following table reconciles the beginning and ending aggregate recorded amount of our asset retirement obligations.


	Six Months Ended
	June 30, 2013
	(in thousands)
Balance at December 31, 2012	$	235,110
Accretion expense		12,198
Liabilities incurred		334
Revisions		10,261
Liabilities associated with assets sold		(3,965)
Liabilities settled		(26,771)
Balance at June 30, 2013		227,167
Less: End of period, current portion		28,162
End of period, noncurrent portion	$	199,005

- Definition

The entire disclosure for an asset retirement obligation and the associated long-lived asset. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

+ References+ Details