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Property and Equipment (Tables)
9 Months Ended
Sep. 30, 2018
Property, Plant and Equipment [Abstract]  
Summary of Property and Equipment
The following table summarizes our property and equipment as of the dates presented: 
 
September 30,
 
December 31,
 
2018
 
2017
Oil and gas properties:
 

 
 

Proved
$
864,426

 
$
460,029

Unproved
132,576

 
117,634

Total oil and gas properties
997,002

 
577,663

Other property and equipment
18,701

 
12,712

Total properties and equipment
1,015,703

 
590,375

Accumulated depreciation, depletion and amortization
(156,937
)
 
(61,316
)
 
$
858,766

 
$
529,059