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Decommissioning and Other Asset Retirement Obligations (Tables)
3 Months Ended
Mar. 31, 2014
Decommissioning and Other Asset Retirement Obligations (Tables)  
Decommissioning and Other Asset Retirement Obligations Table
 
Three Months Ended 
 March 31, 2014
 
(In Thousands)
Beginning balance for the period, as reported
$
50,904

Activity in the period:
 

Accretion of liability
190

Revisions in estimated cash flows
9,380

Settlement of retirement obligations
(13,307
)
Ending balance as of March 31
$
47,167