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MINERAL PROPERTY INTERESTS AND ASSET RETIREMENT OBLIGATIONS (Tables)
3 Months Ended
Mar. 31, 2013
MINERAL PROPERTY INTERESTS AND ASSET RETIREMENT OBLIGATIONS  
Schedule of changes in asset retirement obligations

Changes in the Company’s asset retirement obligations for the three months ended March 31, 2013 and year ended December 31, 2012 are as follows (in thousands):

 

 

 

Three Months Ended

 

Year Ended

 

 

 

March 31, 2013

 

December 31, 2012

 

Asset retirement obligation liability - opening balance

 

$

6,359

 

$

6,253

 

Settlements

 

 

(47

)

Accretion of liability

 

113

 

447

 

Adjustment reflecting updated estimates

 

 

(294

)

Asset retirement obligation liability - ending balance

 

$

6,472

 

$

6,359