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Oil and Gas Properties (Tables)
 9 Months Ended
Sep. 30, 2014
Extractive Industries [Abstract]  
Net Capitalized Costs Related to Oil and Gas Producing Activities
Net capitalized costs, utilizing the successful efforts method of accounting, related to our oil and gas producing activities follows:
 
Third
Quarter-End
 
Year-End
 
2014
 
2013
 
(In thousands)
Unproved oil and gas properties
$
97,824

 
$
100,320

Proved oil and gas properties
201,905

 
155,262

Total capitalized costs
299,729

 
255,582

Less: accumulated depreciation, depletion and amortization
(39,974
)
 
(22,941
)
 
$
259,755

 
$
232,641