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Oil and Natural Gas Properties (Tables)
 12 Months Ended
Dec. 31, 2018
Oil and Gas Exploration and Production Industries Disclosures [Abstract]  
Schedule of Non-Cash Asset Impairment Charges
The Company had the following non-cash asset impairment charges to its oil and natural gas properties for the years ended December 31, 2018 and 2017 (in thousands): 
 
Years Ended December 31,
 
2018
 
2017
Proved property
$
—

 
$
63,131

Unproved property
4,581

 
9,060

Total
$
4,581

 
$
72,191