Asset Retirement Obligations

6 Months Ended

Jun. 30, 2017

Asset Retirement Obligation Disclosure [Abstract]

ASSET RETIREMENT OBLIGATIONS

The following table summarizes the changes in the Company’s asset retirement obligations for the six months ended June 30, 2017 (in thousands).

Beginning asset retirement obligations	$	20,640
Liabilities incurred during period	1,222
Liabilities settled during period	(176		)
Revisions in estimated cash flows	794
Accretion expense	614
Ending asset retirement obligations	23,094
Less: current asset retirement obligations(1)	(703		)
Long-term asset retirement obligations	$	22,391

 _______________

(1) Included in accrued liabilities in the Company’s interim unaudited condensed consolidated balance sheet at June 30, 2017.