ASSET RETIREMENT OBLIGATION (Tables)

6 Months Ended

Jun. 30, 2012

ASSET RETIREMENT OBLIGATION.

Asset Retirement Obligation

Activity related to the Company’s asset retirement obligation during the six months ended June 30, 2012 is as follows:

(In thousands)
Carrying amount of asset retirement obligations at beginning of period	$	60,142
Liabilities incurred	1,054
Liabilities settled	(748		)
Accretion expense	1,504
Carrying amount of asset retirement obligations at end of period	$	61,952