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Supplemental Oil and Gas Disclosures (Unaudited) (Future Net Cash Flows From Proved Oil and Gas Reserves) (Details) - USD ($) | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Gross Amounts |  |  |
Future cash inflows | $ 119,534 | $ 122,286 |
Future production costs | 33,308 | 27,487 |
Future net cash flows before income tax expense | 86,226 | 94,799 |
10% discount to reflect timing of cash flows | (32,580) | (33,521) |
Standardized measure of discounted cash flows | 53,646 | 61,278 | $ 116,526
Net Amounts |  |  |
Future net cash flows before income tax expense | 68,119 | 74,891 |
10% discount to reflect timing of cash flows | (25,739) | (26,481) |
Standardized measure of discounted cash flows | $ 42,380 | $ 48,410 |

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- Definition Amount of estimated future accumulated cash inflow from the sale of proved oil and gas reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Form 20-F -Number Part II -Section Item 18 -Subparagraph (Instruction 2) -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 932 -SubTopic 235 -Name Accounting Standards Codification -Section 55 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477916/932-235-55-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 932 -SubTopic 235 -Name Accounting Standards Codification -Section 50 -Paragraph 33 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477215/932-235-50-33 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 932 -SubTopic 235 -Name Accounting Standards Codification -Section 50 -Paragraph 29 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477215/932-235-50-29 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 932 -SubTopic 235 -Name Accounting Standards Codification -Section 50 -Paragraph 31 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477215/932-235-50-31 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 932 -SubTopic 235 -Name Accounting Standards Codification -Section 50 -Paragraph 33 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477215/932-235-50-33 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 33 -SubTopic 235 -Topic 932 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477215/932-235-50-33 + Details
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