XML 50 R20.htm IDEA: XBRL DOCUMENT v2.4.0.6
Decommissioning and Other Asset Retirement Obligations (Tables)
6 Months Ended
Jun. 30, 2012
Decommissioning and Other Asset Retirement Obligations (Tables)  
Decommissioning and Other Asset Retirement Obligations Table
Three Months Ended June 30,
 
   
2012
  
2011
 
   
(In Thousands)
 
        
Beginning balance for the period, as reported
 $126,844  $230,834 
Activity in the period:
        
   Accretion of liability
  501   1,264 
   Retirement obligations incurred
  -   - 
   Revisions in estimated cash flows
  7,876   16,045 
   Settlement of retirement obligations
  (22,083)  (103,618)
Ending balance as of June 30
 $113,138  $144,525 
 
 
11

 
 
   
Six Months Ended June 30,
 
   
2012
  
2011
 
   
(In Thousands)
 
        
Beginning balance for the period, as reported
 $139,835  $272,815 
Activity in the period:
        
   Accretion of liability
  1,021   3,158 
   Retirement obligations incurred
  -   - 
   Revisions in estimated cash flows
  10,106   25,809 
   Settlement of retirement obligations
  (37,824)  (157,257)
Ending balance as of June 30
 $113,138  $144,525