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Supplementary information on Oil and Gas Exploration and Production (unaudited) (Details 4) - bbl bbl in Billions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Consolidated Entitie 1 [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Beginning balance | 9,498 | 8,677 | 8,106
Extensions and discoveries | 7 | 794 |
Revisions of previous estimates | 815 | 668 | 1,575
Sales of reserves |  | (47) | (397)
Production for the year | (569) | (594) | (606)
Ending balance | 9,750 | 9,498 | 8,677
Equity Method Investees 1 [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Beginning balance | 9,504 | 8,683 | 8,113
Extensions and discoveries | 7 | 794 |
Revisions of previous estimates | 811 | 669 | 1,575
Sales of reserves |  | (47) | (398)
Production for the year | (570) | (595) | (607)
Ending balance | 9,752 | 9,504 | 8,683
Country Of Brazil [Member] | Consolidated Entitie 1 [Member] | Natural Gas [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Beginning balance | 9,335 | 8,504 | 7,912
Extensions and discoveries |  | 779 |
Revisions of previous estimates | 796 | 673 | 1,560
Sales of reserves |  | (47) | (382)
Production for the year | (549) | (573) | (586)
Ending balance | 9,582 | 9,335 | 8,504
Country Of Brazil [Member] | Consolidated Entitie 1 [Member] | Synthetics Gas 1 [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Beginning balance |  |  | 17
Sales of reserves |  |  | (15)
Production for the year |  |  | (1)
Country South America [Member] | Consolidated Entitie 1 [Member] | Natural Gas [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Beginning balance | 163 | 173 | 177
Extensions and discoveries | 7 | 15 |
Revisions of previous estimates | 19 | (5) | 16
Production for the year | (20) | (20) | (20)
Ending balance | 168 | 163 | 173
Country North America [Member] | Equity Method Investees 1 [Member] | Natural Gas [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Beginning balance | 7 | 6 | 7
Revisions of previous estimates | (4) | 1 |
Sales of reserves |  |  | (1)
Production for the year | (1) | (1) | (1)
Ending balance | 2 | 7 | 6

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