Asset Retirement Obligations (Tables)

6 Months Ended

Jun. 30, 2013

Asset Retirement Obligations

Schedule of changes in the Company's ARO's

The following table reflects the changes in the Company’s AROs for the six months ended June 30, 2013 (in thousands):

Asset retirement obligations at January 1, 2013	$	15,245
Liabilities incurred	509
Liabilities assumed in Anadarko Basin Acquisition	6,296
Revisions	—
Liabilities settled	—
Current period accretion expense	567
Asset retirement obligations at June 30, 2013	$	22,617