Company: PBR
Filing Date: 2025-09-04
Form Type: 6-K
Source: 0001104659-25-087159
Chunk: 3

Company: PETROBRAS - PETROLEO BRASILEIRO SA
Filing Date: 2025-09-04
Form: 6-K
Chunk 3
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 such persons together being referred to as “relevant persons”). This announcement and any other documents related to the Notes offering are directed only at relevant persons and must not be acted on or relied on by persons who are not relevant persons. Any investment or investment activity to which this press release and any other documents related to the Notes offering are available only to relevant persons and will be engaged in only with relevant persons.

Forward-Looking Statements

This announcement contains forward-looking statements. Forward-looking
statements are information of a non-historical nature or which relate to future events and are subject to risks and uncertainties. No
assurance can be given that the transactions described herein will be consummated or as to the ultimate terms of any such transactions.
Petrobras undertakes 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'>SIGNATURE</div>

Pursuant to the requirements of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

| PETRÓLEO BRASILEIRO S.A--PETROBRAS |                              |
| By:                                | /s/ Andre Gameiro Rua        |
|                                    | Name: Andre Gameiro Rua      |
|                                    | Title: Attorney-in-fact      |
| By:                                | /s/ Lucas Tavares de Mello   |
|                                    | Name: Lucas Tavares de Mello |
|                                    | Title: Attorney-in-fact      |

Date: September 3, 2025