ASSET RETIREMENT OBLIGATION (Tables)

3 Months Ended

Mar. 31, 2013

ASSET RETIREMENT OBLIGATION

Asset Retirement Obligation

(In thousands)
Balance at December 31, 2012	$	67,016
Liabilities incurred	1,396
Liabilities settled	(195		)
Accretion expense	876
Balance at March 31, 2013	$	69,093