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Asset Retirement and Reclamation Liabilities (Tables)
 6 Months Ended
Jun. 30, 2012
Asset Retirement and Reclamation Liabilities  
Summary of activity in the Velardena Operations ARO

 

 

 

 

June 30,

 

December 31,

 

 

 

2012

 

2011

 

 

 

(in thousands)

 

(in thousands)

 

Beginning balance

 

$

3,577

 

$

—

 

 

 

 

 

 

 

ARO arising in the period (acquired at merger)

 

—

 

3,506

 

Changes in estimates, and other

 

(1,656

)

—

 

Liabilities settled

 

—

 

—

 

Accretion expense

 

78

 

71

 

Ending balance

 

$

1,999

 

$

3,577