Asset Retirement Obligations Asset Retirement Obligations (Tables)

3 Months Ended

Mar. 31, 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	1,365
Liabilities incurred for new wells and facilities construction	43
Reductions due to sold and abandoned wells and facilities	(3,514		)
Revisions in estimates	(215		)
Asset Retirement Obligations as of March 31	$	70,510