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Accounting For Suspended Exploratory Well Costs (Tables) | 12 Months Ended
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Dec. 31, 2024
Oil and Gas, Capitalized Exploratory Well Cost [Abstract] |
Change In Capitalized Suspended Exploratory Well Costs |
Change in capitalized suspended exploratory well costs (millions of dollars) |  | 2024 |  | 2023 |  | 2022
Balance beginning at January 1 |  | 3,559 |  |  | 3,512 |  |  | 4,120 |
Additions pending the determination of proved reserves |  | 453 |  |  | 200 |  |  | 378 |
Charged to expense |  | (69) |  |  | (95) |  |  | (259) |
Reclassifications to wells, facilities and equipment based on the determination of proved reserves |  | (292) |  |  | (142) |  |  | (142) |
Divestments/Other |  | (51) |  |  | 84 |  |  | (585) |
Ending balance at December 31 |  | 3,600 |  |  | 3,559 |  |  | 3,512 |
Ending balance attributed to equity companies included above |  | 225 |  |  | 306 |  |  | 306 |
Period End Capitalized Suspended Exploratory Well Costs |
Period-end capitalized suspended exploratory well costs (millions of dollars) |  | 2024 |  | 2023 |  | 2022
Capitalized for a period of one year or less |  | 453 |  |  | 200 |  |  | 378 |
Capitalized for a period of between one and five years |  | 583 |  |  | 1,030 |  |  | 969 |
Capitalized for a period of between five and ten years |  | 1,544 |  |  | 1,411 |  |  | 1,410 |
Capitalized for a period of greater than ten years |  | 1,020 |  |  | 918 |  |  | 755 |
Capitalized for a period greater than one year - subtotal |  | 3,147 |  |  | 3,359 |  |  | 3,134 |
Total |  | 3,600 |  |  | 3,559 |  |  | 3,512 |
Number Of Projects With Capitalized Suspended Exploratory Well Costs |
|  | 2024 |  | 2023 |  | 2022
Number of projects that only have exploratory well costs capitalized for a period of one year or less |  | 5 |  |  | — |  |  | 10 |
Number of projects that have exploratory well costs capitalized for a period greater than one year |  | 24 |  |  | 31 |  |  | 26 |
Total |  | 29 |  |  | 31 |  |  | 36 |

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- Definition Tabular disclosure of oil and gas present activities. Includes, but is not limited to, number of wells in process of drilling, waterfloods in process of installation, and pressure maintenance operation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name Regulation S-K (SK) -Number 229 -Section 1206 -Publisher SEC + Details
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- Definition Tabular disclosure of the change in capitalized exploratory costs during the period. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 932 -SubTopic 235 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477215/932-235-50-1B + Details
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- Definition Tabular disclosure of aging for exploratory well cost capitalized for period of greater than one year after completion of drilling and number of related projects in oil- and gas-producing activities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 932 -SubTopic 235 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477215/932-235-50-1B + Details
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