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Supplemental Information on Oil and Natural Gas Operations (Unaudited) - Oil, Natural Gas and NGL Quantities (Details) bbl in Thousands, Mcf in Thousands, Boe in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2021 Boe bbl Mcf | Dec. 31, 2022 Boe bbl Mcf | Sep. 30, 2021 Boe bbl Mcf
Proved Developed and Undeveloped Reserve (Energy) [Roll Forward] |  |  |
Beginning balance | Boe | 72,163 | 73,407 | 56,787
Extensions and discoveries | Boe | 2,026 | 14,796 | 13,759
Revisions | Boe | 133 | (6,331) | 4,772
Production | Boe | (915) | (4,199) | (3,155)
Ending balance | Boe | 73,407 | 77,673 | 72,163
Proved Developed Reserves, Included Above | Boe | 43,041 | 49,122 | 41,516
Proved Undeveloped Reserves, Included Above | Boe | 30,366 | 28,551 | 30,647
Oil |  |  |
Proved Developed and Undeveloped Reserves [Roll Forward] |  |  |
Beginning balance | 46,263 | 47,021 | 37,158
Extensions and discoveries | 1,328 | 9,949 | 9,308
Revisions | 99 | (4,871) | 2,138
Production | (669) | (3,217) | (2,341)
Ending balance | 47,021 | 48,882 | 46,263
Proved Developed Reserves, Included Above | 27,096 | 29,632 | 26,170
Proved Undeveloped Reserves, Included Above | 19,925 | 19,250 | 20,093
Natural Gas |  |  |
Proved Developed and Undeveloped Reserves [Roll Forward] |  |  |
Beginning balance | Mcf | 76,019 | 77,486 | 53,683
Extensions and discoveries | Mcf | 1,961 | 13,178 | 12,089
Revisions | Mcf | 350 | (1,417) | 12,850
Production | Mcf | (844) | (3,229) | (2,603)
Ending balance | Mcf | 77,486 | 86,018 | 76,019
Proved Developed Reserves, Included Above | Mcf | 47,974 | 59,314 | 46,173
Proved Undeveloped Reserves, Included Above | Mcf | 29,512 | 26,704 | 29,846
NGLs |  |  |
Proved Developed and Undeveloped Reserves [Roll Forward] |  |  |
Beginning balance | 13,229 | 13,471 | 10,681
Extensions and discoveries | 371 | 2,651 | 2,436
Revisions | (24) | (1,224) | 492
Production | (105) | (444) | (380)
Ending balance | 13,471 | 14,454 | 13,229
Proved Developed Reserves, Included Above | 7,949 | 9,604 | 7,650
Proved Undeveloped Reserves, Included Above | 5,522 | 4,850 | 5,579

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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Energy measure of increase in quantity of proved reserve of oil and gas resulting from the extension of the proved acreage of previously discovered reservoir or discovery of new field with proved reserve or of new reservoir of proved reserve in old field, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher SEC -Name Form 20-F -Section Item 18 -Subsection Instruction 2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 5 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126939881&loc=d3e61831-109447 + Details
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- Definition Energy measure of proved reserve of oil and gas, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Form 20-F -Section Item 18 -Subsection Instruction 2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=126939881&loc=d3e61797-109447 + Details
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- Definition Energy measure of increase (decrease) in quantity of proved reserve of oil and gas related to revision of a previous estimate resulting from new information, except for an increase in proved acreage, or change in economic factors, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher SEC -Name Form 20-F -Section Item 18 -Subsection Instruction 2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 5 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126939881&loc=d3e61831-109447 + Details
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- Definition Additions to proved reserves that result from (1) extension of the proved acreage of previously discovered (old) reservoirs through additional drilling in periods after discovery and (2) discovery of new fields with proved reserves or of new reservoirs of proved reserves in old fields. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Form 20-F -Section Item 18 -Subsection Instruction 2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 5 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126939881&loc=d3e61831-109447 + Details
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- Definition The net quantity of proved reserves as of the balance sheet date. Proved oil reserves are the estimated quantities of crude oil and natural gas liquids which geological and engineering data demonstrate with reasonable certainty to be recoverable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Form 20-F -Section Item 18 -Subsection Instruction 2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=126939881&loc=d3e61797-109447 + Details
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- Definition Revisions represent changes in previous estimates of proved reserves, either upward or downward, resulting from new information (except for an increase in proved acreage) normally obtained from development drilling and production history or resulting from change in economic factors. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Form 20-F -Section Item 18 -Subsection Instruction 2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 5 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126939881&loc=d3e61831-109447 + Details
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- Definition Energy measure of interests in proved developed reserves of crude oil, including condensate and natural gas liquids, natural gas, synthetic oil and gas, or other nonrenewable natural resource that is intended to be upgraded into synthetic oil and gas. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Form 20-F -Section Item 18 -Subsection Instruction 2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=126939881&loc=d3e61797-109447 + Details
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- Definition Net quantities of an enterprise's interests in proved developed reserves of either crude oil (including condensate and natural gas liquids), natural gas, synthetic oil and gas, or other nonrenewable natural resource that is intended to be upgraded into synthetic oil and gas as of the beginning and the end of the year. "Net" quantities of reserves include those relating to the enterprise's operating and nonoperating interests in properties. Quantities of reserves relating to royalty interests owned are included in "net" quantities if the necessary information is available to the enterprise. "Net" quantities does not include reserves relating to interests of others in properties owned by the enterprise. The unit of measure for reserve quantities is defined as "barrels" for oil and synthetic oil reserves or "cubic feet" or "cubic meters" for natural gas and synthetic gas reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Form 20-F -Section Item 18 -Subsection Instruction 2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=126939881&loc=d3e61797-109447 + Details
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