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Property, Plant and Equipment (Details) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Oil and natural gas properties    
Proved $ 1,538,863 $ 1,507,690
Unproved 11,189 11,516
Total oil and natural gas properties 1,550,052 1,519,206
Less: accumulated depreciation, depletion and impairment (1,388,781) (1,380,574)
Net oil and natural gas properties 161,271 138,632
Property, Plant and Equipment, net    
Financing leases 1,307 1,468
Total 128,585 128,734
Less: accumulated depreciation and amortization (40,761) (36,490)
Other property, plant and equipment, net 87,824 92,244
Total property, plant and equipment, net 249,095 230,876
Land    
Property, Plant and Equipment, net    
Property, plant and equipment, gross 200 200
Electrical infrastructure    
Property, Plant and Equipment, net    
Property, plant and equipment, gross 121,819 121,819
Other non-oil and natural gas equipment    
Property, Plant and Equipment, net    
Property, plant and equipment, gross 1,656 1,644
Building and structures    
Property, Plant and Equipment, net    
Property, plant and equipment, gross $ 3,603 $ 3,603