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Asset Retirement Obligations (Tables)
 9 Months Ended
Sep. 30, 2015
Asset Retirement Obligation Disclosure [Abstract]  
Schedule Of Asset Retirement Obligations
The following table shows certain information about our AROs for the periods indicated:
 
 
Nine Months Ended
 
 
September 30,
 
 
2015
 
2014
 
 
(In thousands)
ARO liability, January 1:
 
$
100,567

 
$
133,657

Accretion of discount
 
2,599

 
3,538

Liability incurred
 
6,505

 
2,889

Liability settled
 
(1,933
)
 
(3,936
)
Liability sold
 
(249
)
 
(1,206
)
Revision of estimates (1)
 
(12,881
)

(38,263
)
ARO liability, September 30:
 
94,608

 
96,679

Less current portion
 
3,481

 
2,718

Total long-term ARO
 
$
91,127

 
$
93,961

_______________________ 
(1)
Plugging liability estimates were revised in both 2015 and 2014 to account for changes in the cost of services used to plug wells over the preceding year. We had various upward and downward adjustments.