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Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Oil and natural gas properties    
Proved $ 1,459,713 $ 1,454,016
Unproved 12,478 12,255
Total oil and natural gas properties 1,472,191 1,466,271
Less: accumulated depreciation, depletion and impairment (1,374,767) (1,373,217)
Net oil and natural gas properties 97,424 93,054
Property, Plant and Equipment, net    
Financing leases 1,252 1,384
Total 128,494 128,581
Less: accumulated depreciation and amortization (32,212) (30,790)
Other property, plant and equipment, net 96,282 97,791
Total property, plant and equipment, net 193,706 190,845
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 1,620 1,575
Buildings and structures    
Property, Plant and Equipment, net    
Property, plant and equipment, gross $ 3,603 $ 3,603