Company: PBR
Filing Date: 2025-09-05
Form Type: 424B2
Source: 0001104659-25-087755
Chunk: 99

Company: PETROBRAS - PETROLEO BRASILEIRO SA
Filing Date: 2025-09-05
Form: 424B2
Chunk 99
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 also include references in parentheses to some sections
of the indentures. Whenever we refer to particular sections or defined terms of our indentures in this prospectus or in any prospectus
supplement, those sections or defined terms are incorporated by reference herein or in such prospectus supplement.

We may issue the debt securities at par, at a premium
or as original issue discount securities, which are debt securities that are offered and sold at a substantial discount to their stated
principal amount. We may also issue the debt securities as indexed securities or securities denominated in currencies other than the U.S.
dollar, currency units or composite currencies, as described in more detail in the prospectus supplement relating to any such debt securities.
We will describe the U.S. federal income tax consequences and any other special considerations applicable to original issue discount,
indexed or foreign currency debt securities in the applicable prospectus supplement(s).

<div align='center'>12</div>

In addition, the material financial, legal and
other terms particular to a series of debt securities will be described in the prospectus supplement(s) relating to that series.
Those terms may vary from the terms described here. Accordingly, this summary also is subject to and qualified by reference to the description
of the terms of the series described in the applicable prospectus supplement(s).

The prospectus supplement relating to a series
of debt securities will describe the following terms of the series:

| · | the title of the debt securities of the series; |

| · | any limit on the aggregate principal amount of the debt securities of the series (including any provision for the future offering 
 of additional debt securities of the series beyond any such limit);                                                               |

| · | whether the debt securities will be issued in registered form; |

| · | whether the debt securities will be accompanied by a guaranty or other credit enhancements, including letters of credit, political 
 risk insurance or other similar instruments;                                                                                       |

| · | the date or dates on which the debt securities of the series will mature and any other date or dates on which we will pay the principal 
 of the debt securities of the series;                                                                                                   |

| · | the annual rate or rates, which may be fixed or variable, at which the debt securities will bear interest, if any, and the date or 
 dates from which that interest will accrue;                                                                                        |

| · | the date or dates on which any interest on the debt securities of the series will be payable and the regular record date or dates 
 we will use to determine