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v3.23.1

Subsequent events (Details 4) - bbl bbl in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Consolidated Entitie 1 [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Beginning balance | 8,650 | 7,572 | 8,549
Revisions of previous estimates | 1,682 | 1,802 | (222)
Extensions and discoveries |  |  | 36
Sales of reserves | (425) | (15) | (42)
Production for the year | (647) | (709) | (749)
Ending balance | 9,261 | 8,650 | 7,572
Equity Method Investees 1 [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Beginning balance | 8,657 | 7,580 | 8,605
Revisions of previous estimates | 1,682 | 1,802 | (222)
Extensions and discoveries |  |  | 36
Sales of reserves | (425) | (15) | (90)
Production for the year | (648) | (710) | (750)
Ending balance | 9,267 | 8,657 | 7,580
Brazil [Member] | Consolidated Entitie 1 [Member] | Natural Gas [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Beginning balance | 8,455 | 7,547 | 8,381
Revisions of previous estimates | 1,667 | 1,615 | (93)
Extensions and discoveries |  |  | 36
Sales of reserves | (408) | (15) | (42)
Production for the year | (626) | (692) | (735)
Ending balance | 9,088 | 8,455 | 7,547
Brazil [Member] | Consolidated Entitie 1 [Member] | Synthetics Gas 1 [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Beginning balance | 18 |  | 12
Revisions of previous estimates |  | 19 | (11)
Sales of reserves | (17) |  |
Production for the year | (1) | (1) | (1)
Ending balance |  | 18 |
South America [Member] | Consolidated Entitie 1 [Member] | Natural Gas [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Beginning balance | 177 | 26 | 156
Revisions of previous estimates | 16 | 167 | (119)
Production for the year | (20) | (16) | (12)
Ending balance | 173 | 177 | 26
North America [Member] | Equity Method Investees 1 [Member] | Natural Gas [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Beginning balance | 7 | 8 | 9
Sales of reserves | (1) |  |
Production for the year | (1) | (1) | (2)
Ending balance | 6 | 7 | 8
Africa [Member] | Equity Method Investees 1 [Member] | Natural Gas [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Beginning balance |  |  | 47
Sales of reserves |  |  | (47)

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