Company: PBR
Filing Date: 2025-02-27
Form Type: 6-K
Source: 0001292814-25-000670
Chunk: 16

Company: PETROBRAS - PETROLEO BRASILEIRO SA
Filing Date: 2025-02-27
Form: 6-K
Chunk 16
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 from other comprehensive income to the statement
of income.

For the long-term, future exports forecasts are
reviewed whenever the Company reviews its Strategic Plan assumptions, while for the short-term future exports are reviewed monthly. The
approach for determining highly probable future exports is reviewed annually, at least.

See note 33.4.1 for more detailed information about
cash flow hedge accounting and a sensitivity analysis of the cash flow hedge involving future exports.

| 4.9. | Sources of estimation uncertainty 
 related to income taxes           |

Income taxes rules and regulations may be interpreted
differently by tax authorities, and situations may arise in which these interpretations differ from the Company's understanding.

Uncertainties over income taxes treatments represent
the risks that the tax authority does not accept a certain tax treatment applied by the Company, mainly related to different interpretations
of deductions and additions to the income taxes (Imposto de Renda sobre Pessoa Jurídica - IRPJ and Contribuição Social
sobre Lucro Líquido – CSLL) calculation basis. The Company evaluates each uncertain tax treatment separately or in a group
where there is interdependence in relation to the expected result.

The Company estimates the probability of acceptance
of an uncertain tax treatment by the tax authority based on technical assessments by its legal advisors, considering precedent jurisprudence
applicable to current tax legislation, which may be impacted mainly by changes in tax rules or court decisions which may affect the analysis
of the fundamentals of uncertainty. The tax risks identified are evaluated, treated and, when applicable, follows a pre-determined tax
risk management methodology.

If it is probable that the tax authorities will
accept an uncertain tax treatment, the amounts recorded in the financial statements are consistent with the tax records and, therefore,
no uncertainty is reflected in the measurement of current or deferred income taxes. If it is not probable that the tax authorities will
accept an uncertain tax treatment, the uncertainty is reflected in the measurement of current or deferred income taxes in the financial
statements.

| 19 |

| NOTES TO THE FINANCIAL STATEMENTSPETROBRAS(In millions of reais, unless otherwise indicated) |

To the extent that the Company concludes that it
is unlikely that the tax authorities will accept an uncertain tax treatment, the amounts recorded in the financial statements must reflect
this uncertainty in the measurement of current or deferred income taxes.

The effect of uncertainty for each uncertain tax
treatment is estimated by using the method that provides the best prediction of the resolution of the