Company: PBR
Filing Date: 2025-09-05
Form Type: 424B2
Source: 0001104659-25-087755
Chunk: 87

Company: PETROBRAS - PETROLEO BRASILEIRO SA
Filing Date: 2025-09-05
Form: 424B2
Chunk 87
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 warrants accompanied by guaranties
of Petrobras. Additionally, the selling shareholders to be named in the applicable supplements to this prospectus and their respective
transferees, distributees, pledgees, donees, assignees or other successors may from time to time offer preferred shares and common shares
of Petrobras. This prospectus describes some of the general terms that may apply to these securities and the general manner in which they
may be offered. When we or the selling shareholders offer securities, the specific terms of the securities, including the offering price,
and the specific manner in which they may be offered, will be described in supplements to this prospectus.

Investing in our securities involves risks. See
the “Risk Factors” section set forth in our most recent annual report on Form 20-F, which is incorporated by reference
herein, and, if any, in the relevant prospectus supplement.

Neither the U.S. Securities and Exchange Commission
nor any state securities commission has approved or disapproved of these securities or passed upon the accuracy or adequacy of this prospectus.
Any representation to the contrary is a criminal offense.

December 20, 2024

<div align='center'>Table of Contents</div>

| About this Prospectus                                                |  2 |
| Forward-Looking Statements                                           |  3 |
| Petrobras                                                            |  5 |
| PGF                                                                  |  6 |
| Use of Proceeds                                                      |  7 |
| The Securities                                                       |  8 |
| Legal Ownership                                                      |  9 |
| Description of Debt Securities                                       | 12 |
| Description of Mandatory Convertible Securities                      | 29 |
| Description of Warrants                                              | 30 |
| Description of the Guaranties                                        | 36 |
| Description of Shares and American Depositary Shares                 | 37 |
| Form of Securities, Clearing and Settlement                          | 49 |
| Selling Shareholders                                                 | 54 |
| Plan of Distribution                                                 | 55 |
| Experts                                                              | 57 |
| Validity of Securities                                               | 58 |
| Difficulties of Enforcing Civil Liabilities Against Non-U.S. Persons | 59 |
| Where You Can Find More Information                                  | 61 |
| Incorporation of Certain Documents by Reference                      | 62 |

| EX-4.3:  | PETROBRAS INDENTURE                                     |
| EX-4.4:  | PGF INDENTURE                                           |
| EX-5.