Company: PBR
Filing Date: 2025-02-27
Form Type: 6-K
Source: 0001292814-25-000670
Chunk: 13

Company: PETROBRAS - PETROLEO BRASILEIRO SA
Filing Date: 2025-02-27
Form: 6-K
Chunk 13
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 amounts of oil and gas properties assets. Information on uncertainties related
to reserve volume estimates are presented in note 4.1.

Therefore, assuming all other variables remain
constant, a decrease in estimated proved reserves would increase, prospectively, depreciation, depletion and amortization expense, while
an increase in reserves would reduce depreciation, depletion and amortization.

| 17 |

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

| 4.4. | Sources of estimation uncertainty                          
 related to pension plan and other post-employment benefits |

The net actuarial liability represents the Company's
actuarial obligations, net of fair value of plan assets (when applicable), at present value, as described in note 18.3.2.

The actuarial obligations and net expenses related
to defined benefit pension and health care post-employment plans are computed based on several financial and demographic assumptions,
of which the most significant are:

a) Discount rate: comprises the projected future
inflation in addition to an equivalent discounted interest rate that matches the duration of the pension and health care obligations with
the future yield curve of long-term Brazilian Government Bonds; and

b) Medical costs: comprise the projected growth
rates based on per capita health care benefits paid over the last five years, which are used as a basis for projections, converged to
the general price inflation index within 30 years.

In conjunction with other actuarial assumptions,
the discount rate and rate of variation of medical and hospital costs are reviewed annually and may differ from actual results due to
changes in market and economic conditions.

The measurement uncertainties associated with the
defined benefit obligation and a sensitivity analysis of discount rates and changes in medical costs are disclosed in notes 18.3.6 and
18.3.7, respectively.

| 4.5. | Sources of estimation uncertainty                             
 related to provisions for legal proceedings and contingencies |

The Company is part in arbitrations and in legal
and administrative proceedings involving civil, tax, labor and environmental issues arising from the normal course of its business and
makes use of estimates to recognize the amounts and the probability of outflow of resources, based on reports and technical assessments
from legal advisors and on management’s assessment.

These estimates are performed individually, or
aggregated if there are cases with similar characteristics, primarily considering factors such as assessment of the plaintiff’s
demands, consistency of the existing evidence, jurisprudence on similar cases and doctrine