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v3.25.1

Supplementary Oil And Gas Information (Unaudited) - Proved and Proved Developed Oil and Natural Gas Liquids, Net of Royalties (Details) - MMBbls | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Proved Developed And Undeveloped Reserves [Roll Forward] |  |  |  |
Sales of reserves in place (in MMbbl) | (2) |  |  |
Synthetic Crude Oil | North America |  |  |  |
Proved Developed And Undeveloped Reserves [Roll Forward] |  |  |  |
Proved reserves, net, beginning balance | 5,840 | 5,390 | 5,944 |
Extensions and discoveries (in MMbbl) | 0 | 162 | 0 |
Improved recovery (in MMbbl) | 1 | 28 | 29 |
Purchases of reserves in place (in MMbbl) | 701 | 0 | 0 |
Sales of reserves in place (in MMbbl) | 0 | 0 | 0 |
Production (in MMbbl) | (141) | (141) | (128) |
Economic revisions due to prices (in MMbbl) | (106) | 333 | (455) |
Revisions of prior estimates (in MMbbl) | 18 | 68 | 0 |
Proved reserves, net, ending balance | 6,313 | 5,840 | 5,390 |
Net proved developed reserves (in MMbbl) | 6,268 | 5,804 | 5,389 | 5,929
Bitumen | North America |  |  |  |
Proved Developed And Undeveloped Reserves [Roll Forward] |  |  |  |
Proved reserves, net, beginning balance | 2,669 | 2,546 | 2,289 |
Extensions and discoveries (in MMbbl) | 62 | 67 | 195 |
Improved recovery (in MMbbl) | 7 | 9 | 5 |
Purchases of reserves in place (in MMbbl) | 1 | 0 | 267 |
Sales of reserves in place (in MMbbl) | 0 | 0 | 0 |
Production (in MMbbl) | (101) | (102) | (91) |
Economic revisions due to prices (in MMbbl) | (38) | 123 | (263) |
Revisions of prior estimates (in MMbbl) | 77 | 26 | 144 |
Proved reserves, net, ending balance | 2,676 | 2,669 | 2,546 |
Net proved developed reserves (in MMbbl) | 629 | 610 | 582 | 584
Crude Oil and NGLs | North America |  |  |  |
Proved Developed And Undeveloped Reserves [Roll Forward] |  |  |  |
Proved reserves, net, beginning balance | 767 | 696 | 708 |
Extensions and discoveries (in MMbbl) | 31 | 51 | 11 |
Improved recovery (in MMbbl) | 13 | 37 | 21 |
Purchases of reserves in place (in MMbbl) | 137 | 0 | 21 |
Sales of reserves in place (in MMbbl) | (2) | (1) | 0 |
Production (in MMbbl) | (49) | (47) | (45) |
Economic revisions due to prices (in MMbbl) | (35) | 29 | (73) |
Revisions of prior estimates (in MMbbl) | 42 | 1 | 54 |
Proved reserves, net, ending balance | 903 | 767 | 696 |
Net proved developed reserves (in MMbbl) | 359 | 337 | 359 | 370
Crude Oil and NGLs | North Sea |  |  |  |
Proved Developed And Undeveloped Reserves [Roll Forward] |  |  |  |
Proved reserves, net, beginning balance | 9 | 11 | 79 |
Extensions and discoveries (in MMbbl) | 0 | 0 | 0 |
Improved recovery (in MMbbl) | 0 | 0 | 0 |
Purchases of reserves in place (in MMbbl) | 0 | 0 | 0 |
Sales of reserves in place (in MMbbl) | 0 | 0 | 0 |
Production (in MMbbl) | (4) | (5) | (5) |
Economic revisions due to prices (in MMbbl) | 0 | 0 | 1 |
Revisions of prior estimates (in MMbbl) | 1 | 3 | (64) |
Proved reserves, net, ending balance | 6 | 9 | 11 |
Net proved developed reserves (in MMbbl) | 6 | 6 | 5 | 39
Crude Oil and NGLs | Offshore Africa |  |  |  |
Proved Developed And Undeveloped Reserves [Roll Forward] |  |  |  |
Proved reserves, net, beginning balance | 54 | 57 | 64 |
Extensions and discoveries (in MMbbl) | 0 | 0 | 0 |
Improved recovery (in MMbbl) | 0 | 0 | 0 |
Purchases of reserves in place (in MMbbl) | 0 | 0 | 0 |
Sales of reserves in place (in MMbbl) | 0 | 0 | 0 |
Production (in MMbbl) | (4) | (4) | (5) |
Economic revisions due to prices (in MMbbl) | 0 | 1 | (2) |
Revisions of prior estimates (in MMbbl) | (2) | 1 | 0 |
Proved reserves, net, ending balance | 48 | 54 | 57 |
Net proved developed reserves (in MMbbl) | 25 | 30 | 34 | 38
Crude Oil, Synthetic Crude Oil, Bitumen, Natural Gas, Natural Gas Liquids |  |  |  |
Proved Developed And Undeveloped Reserves [Roll Forward] |  |  |  |
Proved reserves, net, beginning balance | 9,339 | 8,700 | 9,083 |
Extensions and discoveries (in MMbbl) | 93 | 280 | 205 |
Improved recovery (in MMbbl) | 21 | 75 | 56 |
Purchases of reserves in place (in MMbbl) | 839 | 0 | 288 |
Sales of reserves in place (in MMbbl) | (2) | (1) | 0 |
Production (in MMbbl) | (299) | (298) | (274) |
Economic revisions due to prices (in MMbbl) | (179) | 485 | (792) |
Revisions of prior estimates (in MMbbl) | 136 | 98 | 134 |
Proved reserves, net, ending balance | 9,947 | 9,339 | 8,700 |
Net proved developed reserves (in MMbbl) | 7,288 | 6,787 | 6,369 | 6,960
Crude Oil, Synthetic Crude Oil, Bitumen, Natural Gas, Natural Gas Liquids | North America |  |  |  |
Proved Developed And Undeveloped Reserves [Roll Forward] |  |  |  |
Proved reserves, net, beginning balance | 9,276 | 8,632 | 8,941 |
Extensions and discoveries (in MMbbl) | 93 | 280 | 205 |
Improved recovery (in MMbbl) | 21 | 75 | 56 |
Purchases of reserves in place (in MMbbl) | 839 | 0 | 288 |
Sales of reserves in place (in MMbbl) | (2) | (1) | 0 |
Production (in MMbbl) | (291) | (289) | (265) |
Economic revisions due to prices (in MMbbl) | (180) | 484 | (791) |
Revisions of prior estimates (in MMbbl) | 136 | 94 | 198 |
Proved reserves, net, ending balance | 9,892 | 9,276 | 8,632 |
Net proved developed reserves (in MMbbl) | 7,256 | 6,752 | 6,330 | 6,883

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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 -Number Part II -Section Item 18 -Subparagraph (Instruction 2) -Publisher SEC + Details
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- Definition Changes in proved reserve estimates resulting from application of improved recovery techniques. + 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 + 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 -Number Part II -Section Item 18 -Subparagraph (Instruction 2) -Publisher SEC + 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 -Number Part II -Section Item 18 -Subparagraph (Instruction 2) -Publisher SEC + 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 -Name Form 20-F -Number Part II -Section Item 18 -Subparagraph (Instruction 2) -Publisher SEC + Details
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