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Oil and Natural Gas Properties Oil and Natural Gas Properties (Tables)
 3 Months Ended
Mar. 31, 2020
Oil and Gas Exploration and Production Industries Disclosures [Abstract]  
Capitalized Costs Relating to Oil and Gas Producing Activities Disclosure
Capitalized costs, impairment, and depreciation, depletion and amortization relating to the Company’s oil and natural gas properties as of March 31, 2020 and December 31, 2019, are summarized below (in thousands):
 
March 31,
 
December 31,
 
2020
 
2019
Oil and gas properties, successful efforts method:
 
 
 
Proved properties
$
1,091,861

 
$
1,046,208

Accumulated impairment to proved properties
(100,652
)
 
(75,400
)
Proved properties, net of accumulated impairments
991,209

 
970,808

Unproved properties
301,666

 
305,961

Accumulated impairment to Unproved properties
(63,189
)
 
(45,690
)
Unproved properties, net of accumulated impairments
238,477

 
260,271

Land
5,382

 
5,382

Total oil and gas properties, net of accumulated impairments
1,235,068

 
1,236,461

Accumulated depreciation, depletion and amortization
(219,823
)
 
(195,567
)
Net oil and gas properties
$
1,015,245

 
$
1,040,894