XML 75 R36.htm IDEA: XBRL DOCUMENT v2.4.1.9
Asset Retirement Obligations (Tables)
 12 Months Ended
Dec. 31, 2014
Asset Retirement Obligation Disclosure [Abstract]  
Schedule Of Asset Retirement Obligations [Table Text Block]
The following table shows certain information about our AROs for the periods indicated:
 
2014
 
2013
 
 
(In thousands)
 
ARO liability, January 1:
$
133,657

 
$
146,159

 
Accretion of discount
4,599

 
5,450

 
Liability incurred
6,246

 
4,857

 
Liability settled
(4,490
)
 
(4,751
)
 
Liability sold
(1,206
)
 
(2,622
)
 
Revision of estimates (1)
(38,239
)
 
(15,436
)
 
ARO liability, December 31:
100,567

 
133,657

 
Less current portion
3,204

 
2,954

 
Total long-term ARO liability
$
97,363

 
$
130,703

 
_________________________
(1)
Plugging liability estimates were revised in both 2014 and 2013 for updates in the cost of services used to plug wells over the preceding year. We had various upward and downward adjustments as well as changes in estimated timing of cash flows.