Asset Retirement Obligations Asset Retirement Obligations (Tables)

9 Months Ended

Sep. 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	4,156
Liabilities incurred for new wells and facilities construction	147
Reductions due to sold and abandoned wells and facilities	(4,574		)
Revisions in estimates	12
Asset Retirement Obligations as of September 30	$	72,572