Company: PBR
Filing Date: 2025-09-03
Form Type: 424B2
Source: 0001104659-25-086714
Chunk: 8

Company: PETROBRAS - PETROLEO BRASILEIRO SA
Filing Date: 2025-09-03
Form: 424B2
Chunk 8
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| · | Petrobras’s ability to successfully implement                                                                                          
 its Strategic Plan 2050 and Business Plan 2025-2029, whether those strategic and business plans remains in place, and the direction of 
 any subsequent strategic and business plans;                                                                                           |

| · | the outcome of ongoing corruption investigations                                                                                    
 and any new facts or information that may arise in relation to past investigations related to alleged irregularities or corruption; |

| · | the effectiveness of Petrobras’s risk management     
 policies and procedures, including operational risk; |

| · | potential changes to the composition of Petrobras’s 
 board of directors and management team; and         |

| · | litigation, such as class actions or enforcement                      
 or other proceedings brought by governmental and regulatory agencies. |

For additional information
on factors that could cause our actual results to differ from expectations reflected in forward-looking statements, please see “Risk
Factors” in this prospectus supplement and in documents incorporated by reference in this prospectus supplement and the accompanying
prospectus.

All forward-looking statements attributed to us
or a person acting on our behalf are expressly qualified in their entirety by this cautionary statement, and you should not place undue
reliance on any forward-looking statement included in this prospectus supplement or the accompanying prospectus. We undertake no obligation
to publicly update or revise any forward-looking statements, whether as a result of new information or future events or for any other
reason.

<div align='center'>S-4

INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE</div>

Petrobras is incorporating
by reference into this prospectus supplement the following documents that it has filed with the U.S. Securities and Exchange Commission
(“SEC”):

| (1) | The Petrobras Annual Report on Form 20-F for the year ended December 31, 2024 filed with the SEC on April 3, 2025, film number 25810793 (the “2024 Form 20-F”). |

| (2) | The Petrobras Report on Form 6-K furnished to the SEC on August 8, 2025, film number 251196802,                                                                                                                                                                                      
 containing Petrobras’s unaudited condensed consolidated interim financial statements in U.S. dollars as of June 30, 2025, and                                                                                                                                                        
 for the three-month and six-month periods ended June 30, 2025 and 2024, prepared in accordance with IAS 34 – “Interim