Asset Retirement Obligations Asset Retirement Obligations (Tables)

6 Months Ended

Jun. 30, 2015

Asset Retirement Obligation Disclosure [Abstract]

Roll-forward of our asset retirement obligations

The following provides a roll-forward of our asset retirement obligation (in thousands):

	2015
Asset Retirement Obligations recorded as of January 1	$	72,831
Accretion expense	2,746
Liabilities incurred for new wells and facilities construction	142
Reductions due to sold and abandoned wells and facilities	(3,515		)
Revisions in estimates	(31		)
Asset Retirement Obligations as of June 30	$	72,173