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Asset Retirement Obligations (Tables)
3 Months Ended
Mar. 31, 2014
Asset Retirement Obligations [Abstract]  
Reconciliation of the total liability for asset retirement obligations
The following is a reconciliation of the total liability for asset retirement obligations:

        
   
(In thousands)
 
   
March 31,
  
December 31,
 
   
2014
  
2013
 
Beginning asset retirement obligation
 $812  $686 
Accretion of discount
  10   38 
Liabilities incurred
  76   131 
Liabilities settled
  --   (43)
Ending asset retirement obligation
 $898  $812 
          
Mineral properties
 $178  $175 
Oil & Gas wells
  720   637 
Ending asset retirement obligation
 $898  $812