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Supplemental Information on Oil and Natural Gas Producing Activities (Unaudited) - Summary of Changes in Estimated Oil and Natural Gas Reserves (Unaudited) (Details)
Mcf in Thousands
 12 Months Ended
Dec. 31, 2021
MBoe
MBbls
Mcf
Dec. 31, 2020
MBoe
MBbls
Mcf
Dec. 31, 2019
MBoe
MBbls
Mcf
Proved Developed and Undeveloped Reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas)      
Proved developed and undeveloped reserves, Beginning balance (MBoe) | MBoe 36,879 89,885 160,176
Revisions of previous estimates (MBoe) | MBoe 43,340 (44,800) (58,514)
Acquisitions of new reserves (MBoe) | MBoe 1,446 1,076 0
Extensions and discoveries (MBoe) | MBoe 0 0 1,084
Sales of reserves in place (MBoe) | MBoe (3,587) (579) (905)
Production (MBoe) | MBoe (6,793) (8,703) (11,956)
Proved developed and undeveloped reserves, Ending balance (MBoe) | MBoe 71,285 36,879 89,885
Proved developed reserves (MBoe) | MBoe 71,285 36,879 62,086
Proved undeveloped reserves (MBoe) | MBoe 0 0 27,799
Oil      
Proved Developed and Undeveloped Reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas)      
Proved developed and undeveloped reserves, beginning balance 8,485 35,308 64,019
Revisions of previous estimates 3,627 (24,650) (25,530)
Acquisitions of new reserves 135 74 0
Extensions and discoveries 0 0 635
Sales of reserves in place (3,440) (163) (297)
Production (957) (2,084) (3,519)
Proved developed and undeveloped reserves, ending balance 7,850 8,485 35,308
Proved developed reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas) 7,850 8,485 14,078
Proved undeveloped reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas) 0 0 21,230
NGL      
Proved Developed and Undeveloped Reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas)      
Proved developed and undeveloped reserves, beginning balance 11,245 15,859 28,175
Revisions of previous estimates 14,924 (2,246) (9,277)
Acquisitions of new reserves 438 437 0
Extensions and discoveries 0 0 94
Sales of reserves in place (28) (111) (223)
Production (2,266) (2,694) (2,910)
Proved developed and undeveloped reserves, ending balance 24,313 11,245 15,859
Proved developed reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas) 24,313 11,245 14,532
Proved undeveloped reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas) 0 0 1,327
Natural gas      
Proved Developed and Undeveloped Reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas)      
Proved developed and undeveloped reserves, beginning balance | Mcf 102,893 232,307 407,891
Revisions of previous estimates | Mcf 148,736 (107,426) (142,239)
Acquisitions of new reserves | Mcf 5,235 3,391 0
Extensions and discoveries | Mcf 0 0 2,127
Sales of reserves in place | Mcf (716) (1,827) (2,308)
Production | Mcf (21,417) (23,552) (33,164)
Proved developed and undeveloped reserves, ending balance | Mcf 234,731 102,893 232,307
Proved developed reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas) | Mcf 234,731 102,893 200,853
Proved undeveloped reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas) | Mcf 0 0 31,454