ASSET RETIREMENT OBLIGATION (Tables)

3 Months Ended

Mar. 31, 2015

ASSET RETIREMENT OBLIGATION

Schedule of reconciliation of the Company's asset retirement obligations

	March 31, 2015
	(in thousands)
Balance at beginning of period	$	29,771
Liabilities incurred in current period	9
Liabilities settled in current period	(288		)
Accretion expense	698
Balance at end of period	$	30,190