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Provision for decommissioning costs | 12 Months Ended
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Dec. 31, 2024
Provision For Decommissioning Costs |
Provision for decommissioning costs |
| 20. | Provision for decommissioning costs
The following table details the amount of the provision for decommissioning costs by producing area:
Schedule of provision for decommissioning costs by producing area |  |
| 12.31.2024 | 12.31.2023
Onshore | 493 | 447
Shallow waters | 7,266 | 6,253
Deep and ultra-deep post-salt | 12,071 | 10,873
Pre-salt | 6,373 | 5,630
Total | 26,203 | 23,203
Current | 1,696 | 2,032
Non-current | 24,507 | 21,171
Changes in the provision for decommissioning costs are presented as follows:
Schedule of changes in the provision for decommissioning costs are presented |  |
Non-current liabilities | 2024 | 2023
Opening balance | 23,203 | 18,600
Adjustment to provision | 9,373 | 3,821
Transfers related to liabilities held for sale | (407) | (339)
Use of provisions | (1,464) | (1,227)
Interest accrued | 970 | 837
Others | 26 | (8)
Translation adjustment | (5,498) | 1,519
Closing balance | 26,203 | 23,203
In 2024, it includes the provision established for the Cherne cluster (US$ 664) in Rio de Janeiro, the Pescada cluster (US$ 46) in Rio Grande do Norte, and the reduction of the provision related to the Uruguá cluster, Uruguá and Tambaú fields, (US$ 338) in Rio de Janeiro. In 2023, it includes the provision established for the Uruguá cluster (US$ 381) and the reduction of the provision related to the Pescada cluster (US$ 41), as set out in note 29. The expected realization of the provisions is presented below:
Schedule of due date estimates for the obligations |  |  |  |  |  |  |
| 2025 | 2026 | 2027 | 2028 | 2029 | 2030 onwards | 12.31.2024
Provision for decommissioning costs | 1,696 | 2,593 | 2,153 | 2,340 | 1,724 | 15,697 | 26,203
The effect of a change in the discount rate (key assumption) may result in material variations of the provision, as outlined below.
Schedule of sensitivities in this key assumption |  |  |
Sensitivity to the discount rate (1) | Effects on provision for decommissioning costs | Effects on carrying amounts of assets | Effects on other income and expenses
Increase of 0.5 percentage points | (1,631) | (1,484) | (146)
Decrease of 0.5 percentage points | 1,796 | 1,629 | 166
(1) It includes liabilities held for sale. |  |  |
The transfer to liabilities held for sale refers to the register and revision of the provision associated with E&P assets in the divestment process and classified as assets held for sale. Accounting policy for decommissioning costs The initial recognition of legal obligations to remove equipment and restore land or sea areas at the end of operations occurs after the declaration of commercial feasibility of an oil and gas field. The calculations of the cost estimates for future environmental removals and recoveries are complex and involve significant uncertainties (as set out in note 4.6). The estimates of decommissioning costs are reviewed annually based on current information on expected costs and recovery plans. When the revision of the estimates results in an increase in the provision for decommissioning costs, there is a corresponding increase in assets. Otherwise, if a decrease in the liability exceeds the carrying amount of the asset, the excess shall be recognized immediately in profit or loss, within other income and expenses.

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