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Note 17 - Supplemental Oil and Natural Gas Information (Unaudited) - Schedule of Proved Reserves (Details) | 12 Months Ended
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Dec. 31, 2023 bbl MMcf | Dec. 31, 2022 bbl MMcf
Oil [Member] |  |  |
Reserve quantities, beginning of year (Barrel of Oil) | bbl |  | 5,140,090 | 1,021,620
Revisions of previous estimates (Barrel of Oil) | bbl |  | (822,786) | (153,434)
Discoveries and extensions (Barrel of Oil) | bbl |  | 0 | 0
Purchases of minerals in place (Barrel of Oil) | bbl |  | 0 | 4,777,193
Sale of minerals in place (Barrel of Oil) | bbl |  | (742,798) | (108,833)
Production (Barrel of Oil) | bbl |  | (391,645) | (396,456)
Reserve quantities, end of year (Barrel of Oil) | bbl |  | 3,182,861 | 5,140,090
Natural Gas [Member] |  |  |
Reserve quantities, beginning of year (Barrel of Oil) | MMcf | [1] | 16,348,264 | 1,938,048
Revisions of previous estimates (Barrel of Oil) | MMcf | [1] | (3,421,047) | 4,066,007
Discoveries and extensions (Barrel of Oil) | MMcf | [1] | 0 | 0
Purchases of minerals in place (Barrel of Oil) | MMcf | [1] | 0 | 11,753,283
Sale of minerals in place (Barrel of Oil) | MMcf | [1] | (1,448,181) | (64,338)
Production (Barrel of Oil) | MMcf | [1] | (1,396,650) | (1,344,736)
Reserve quantities, end of year (Barrel of Oil) | MMcf | [1] | 10,082,386 | 16,348,264
[1] | Mcf equivalents (Mcfe) consist of natural gas reserves in mcf plus NGLs converted to mcf using a factor of 6 mcf for each barrel of NGL.

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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 -Name Form 20-F -Section Item 18 -Subsection Instruction 2 -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 932 -SubTopic 235 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482274/932-235-50-5 + 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 -Name Form 20-F -Section Item 18 -Subsection Instruction 2 -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 932 -SubTopic 235 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482274/932-235-50-4 + Details
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- Definition Production of proved reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Form 20-F -Section Item 18 -Subsection Instruction 2 -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 932 -SubTopic 235 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482274/932-235-50-5 + Details
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- Definition Purchase of minerals in place. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Form 20-F -Section Item 18 -Subsection Instruction 2 -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 932 -SubTopic 235 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482274/932-235-50-5 + 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 -Name Form 20-F -Section Item 18 -Subsection Instruction 2 -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 932 -SubTopic 235 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482274/932-235-50-5 + Details
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- Definition Sales of minerals in place. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Form 20-F -Section Item 18 -Subsection Instruction 2 -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 932 -SubTopic 235 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482274/932-235-50-5 + Details
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- Details
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- Details
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