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ASSET RETIREMENT OBLIGATION (Tables)
9 Months Ended
Sep. 30, 2012
ASSET RETIREMENT OBLIGATION.  
Asset Retirement Obligation

 

 

(In thousands)

 

 

 

Balance at December 31, 2011

 

$

60,142

 

Liabilities incurred

 

1,731

 

Liabilities settled

 

(1,050

)

Accretion expense

 

2,283

 

Change in Estimate

 

(37

)

Balance at September 30, 2012

 

$

63,069