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Decommissioning and Other Asset Retirement Obligations (Tables)
9 Months Ended
Sep. 30, 2012
Decommissioning and Other Asset Retirement Obligations (Tables)  
Decommissioning and Other Asset Retirement Obligations Table
 
 
Three Months Ended September 30,
 
2012
 
2011
 
(In Thousands)
 
 
 
 
 
 
 
 
Beginning balance for the period, as reported
$
113,138
 
 
$
144,525
 
Activity in the period:
 
 
 
 
 
 
 
Accretion of liability
 
285
 
 
 
631
 
Revisions in estimated cash flows
 
9,187
 
 
 
14,311
 
Settlement of retirement obligations
 
(23,104)
 
 
 
(25,872)
 
Ending balance as of September 30
$
99,506
 
 
$
133,595
 
 
 
 
 
 
 
 
 
 
 
Nine  Months Ended September 30,
 
2012
 
2011
 
(In Thousands)
 
 
 
 
 
 
 
 
Beginning balance for the period, as reported
$
139,835
 
 
$
272,815
 
Activity in the period:
 
 
 
 
 
 
 
Accretion of liability
 
1,306
 
 
 
3,789
 
Revisions in estimated cash flows
 
19,293
 
 
 
40,120
 
Settlement of retirement obligations
 
(60,928)
 
 
 
(183,129)
 
Ending balance as of September 30
$
99,506
 
 
$
133,595