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Exploration and evaluation of oil and gas reserves | 6 Months Ended
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Jun. 30, 2024
Notes and other explanatory information [abstract] |
Exploration and evaluation of oil and gas reserves |
| 20. | Exploration and evaluation of oil and gas reserves
Changes in the balances of capitalized costs directly associated with exploratory wells pending determination of proved reserves and the balance of amounts paid for obtaining rights and concessions for exploration of oil and natural gas (capitalized acquisition costs) are set out in the following table:
Schedule of changes in capitalized costs |  |
Capitalized Exploratory Well Costs / Capitalized Acquisition Costs (1) | Jan-Jun/2024 | Jan-Jun/2023
Property plant and equipment |  |
Opening Balance | 1,512 | 1,876
Additions | 184 | 158
Write-offs | (25) | (1)
Transfers | - | (44)
Translation adjustment | (198) | 155
Closing Balance | 1,473 | 2,144
Intangible assets |  |
Opening Balance | 2,313 | 2,406
Additions | − | 147
Write-offs | − | (36)
Transfers | − | (31)
Translation adjustment | (299) | 227
Closing Balance | 2,014 | 2,713
Capitalized Exploratory Well Costs / Capitalized Acquisition Costs | 3,487 | 4,857
(1) | Amounts capitalized and subsequently expensed in the same period have been excluded from this table.
Exploration costs recognized in the statement of income and cash used in oil and gas exploration and evaluation activities are set out in the following table:
Schedule of exploration costs |  |  |  |
| Jan-Jun/2024 | Jan-Jun/2023 | Apr-Jun/2024 | Apr-Jun/2023
Exploration costs recognized in the statement of income |  |  |  |
Geological and geophysical expenses | (193) | (317) | (111) | (192)
Exploration expenditures written off (includes dry wells and signature bonuses) | (105) | (38) | (55) | (6)
Contractual penalties on local content requirements | (4) | 7 | (2) | 7
Other exploration expenses | (7) | - | (5) | -
Total expenses | (309) | (348) | (173) | (191)
Cash used in: |  |  |  |
Operating activities | 200 | 317 | 116 | 192
Investment activities | 271 | 306 | 144 | 241
Total cash used | 471 | 623 | 260 | 433

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- Definition The entire disclosure for exploration and evaluation assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 6 -IssueDate 2023-01-01 -Section Disclosure -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=6&code=ifrs-tx-2023-en-r&doctype=Standard&dita_xref=IFRS06_g23-25_TI -URIDate 2023-03-23 + Details
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