Company: PBR
Filing Date: 2025-09-03
Form Type: 424B2
Source: 0001104659-25-086714
Chunk: 1

Company: PETROBRAS - PETROLEO BRASILEIRO SA
Filing Date: 2025-09-03
Form: 424B2
Chunk 1
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 each case, accrued and unpaid interest. Beginning , 20 with respect to the 20 Notes, and , 20 with respect to the 20 Notes, as applicable, PGF may redeem, in whole or in part, the Notes at a price equal to 100% of the principal amount of the Notes to be redeemed, plus accrued and unpaid interest. The Notes will also be redeemable in whole without premium prior to maturity at PGF’s option upon the imposition of certain withholding taxes. See “Description of the Notes—Optional Redemption.”

In connection with the offering, the underwriters are not acting for anyone other than the issuer. Neither the underwriters nor any of their affiliates regulated by the Financial Conduct Authority will be responsible to anyone other than the issuer for providing the protections afforded to their clients nor for providing advice in relation to the offering.

PGF intends to apply to have the Notes approved for listing on the New York Stock Exchange, or the “NYSE.”

See “Risk Factors” beginning on page S-14 to read about factors you should consider before buying the Notes offered in this prospectus supplement and the accompanying prospectus.

Neither the U.S. Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus supplement is truthful or complete. Any representation to the contrary is a criminal offense.

|       |     | Initial                 
 price to the public(1): |     |   |     |       |     | Underwriting 
 discount(2): |     |   |     |       |     | Proceeds,                
 before expenses, to PGF: |     |   |     |       |
|       |     | Per                     
 Note                    |     |   |     | Total |     | Per          
 Note         |     |   |     | Total |     | Per                      
 Note                     |     |   |     | Total |
| 20    
 Notes |     |                         |     | % |     | U.S.$ |     |              |     | % |     | U.S.$ |     |                          |     | % |     | U.S.$ |
| 20    
 Notes |     |                         |     | % |     | U.S.$ |     |              |     | % |     | U.S.$ |     |                          |     | % |     | U.S.$ |

| (1) | Plus                                                           
 accrued interest from       , 2025, if settlement occurs after 
 such