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Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Oil and natural gas properties    
Proved $ 1,489,793 $ 1,484,359
Unproved 22,753 24,603
Total oil and natural gas properties 1,512,546 1,508,962
Less: accumulated depreciation, depletion and impairment (1,335,830) (1,129,622)
Net oil and natural gas properties 176,716 379,340
Property, Plant and Equipment, net    
Property, plant and equipment, gross 129,107 222,804
Less accumulated depreciation and amortization (22,442) (34,201)
Other property, plant and equipment, net 106,665 188,603
Total property, plant and equipment, net 283,381 567,943
Land    
Property, Plant and Equipment, net    
Property, plant and equipment, gross 200 4,400
Electrical infrastructure    
Property, Plant and Equipment, net    
Property, plant and equipment, gross 121,818 126,482
Other non-oil and natural gas equipment    
Property, Plant and Equipment, net    
Property, plant and equipment, gross 1,934 12,665
Buildings and structures    
Property, Plant and Equipment, net    
Property, plant and equipment, gross 3,603 77,148
Financing leases    
Property, Plant and Equipment, net    
Property, plant and equipment, gross $ 1,552 $ 2,109