ASSET RETIREMENT OBLIGATION

6 Months Ended

Jun. 30, 2013

ASSET RETIREMENT OBLIGATION

ASSET RETIREMENT OBLIGATION

12. ASSET RETIREMENT OBLIGATION

Activity related to the Company’s asset retirement obligation is as follows:

(In thousands)
Balance at December 31, 2012	$	67,016
Liabilities incurred	2,354
Liabilities settled	(757		)
Accretion expense	1,777
Balance at June 30, 2013	$	70,390

As of June 30, 2013, approximately $2.0 million, which represents the current portion of the Company’s asset retirement obligation, is included in accrued liabilities in the Condensed Consolidated Balance Sheet.