Annual report pursuant to Section 13 and 15(d)

Asset Retirement Obligations (Tables)

v2.4.0.6
Asset Retirement Obligations (Tables)
 12 Months Ended
Dec. 31, 2012
Asset Retirement Obligation [Abstract]  
Schedule of Change in Asset Retirement Obligation
The following table summarizes the activity for the Company’s asset retirement obligations:
 
For the year ended December 31,
 
2012
 
2011
Asset retirement obligations at beginning of the period
$
13,938

 
$
15,925

Accretion expense
2,253

 
2,338

Liabilities incurred
205

 
36

Liabilities settled
(1,950
)
 
(3,797
)
Revisions to estimate
(1,145
)
 
(564
)
Asset retirement obligations at end of period
13,301

 
13,938

Less: current asset retirement obligations
(2,336
)
 
(1,260
)
Long-term asset retirement obligations at the end of the period
$
10,965

 
$
12,678