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Decommissioning Liabilities (Tables)
 9 Months Ended
Sep. 30, 2014
Decommissioning Liabilities [Abstract]  
Summary the activity for company's decommissioning liabilities

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Nine Months Ended September 30,

 

 

2014

 

2013

Decommissioning liabilities, December 31, 2013 and 2012, respectively

 

$
83,519 

 

$
93,053 

Liabilities acquired and incurred

 

 
866 

 

 
360 

Liabilities settled

 

 

 -

 

 
(87)

Accretion

 

 
3,324 

 

 
4,269 

Revision in estimated liabilities

 

 
(266)

 

 

 -

Total decommissioning liabilities, September 30, 2014 and 2013, respectively

 

$
87,443 

 

$
97,595