Company: PBR
Filing Date: 2025-07-03
Form Type: 6-K
Source: 0001292814-25-002569
Chunk: 0

Company: PETROBRAS - PETROLEO BRASILEIRO SA
Filing Date: 2025-07-03
Form: 6-K
Chunk 0
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<div align='center'>UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

Report of Foreign Private
Issuer
Pursuant to Rule 13a-16 or 15d-16 of the

Securities Exchange
Act of 1934

For the month of July, 2025

Commission File Number 1-15106

PETRÓLEO BRASILEIRO S.A. – PETROBRAS

(Exact name of registrant
as specified in its charter)

Brazilian Petroleum Corporation – PETROBRAS

(Translation of Registrant's
name into English)

Avenida Henrique Valadares, 28 – 9th floor
20231-030 – Rio de Janeiro, RJ
Federative Republic of Brazil

(Address of principal
executive office)

Indicate by check mark
whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F ___X___ Form
40-F _______

Indicate by check mark
whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission
pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes _______ No___X____</div>

Petrobras announces investments in refining and petrochemicals in Rio de Janeiro—

Rio de Janeiro, July 3, 2025 –Petróleo Brasileiro S.A. – Petrobras announces that approximately R$33 billion in investments are planned for refining
and petrochemical projects in Rio de Janeiro, of which R$29 billion in Petrobras Capex and R$4 billion in another project that operates
in synergy with Petrobras assets.

The implementation of the integration
projects of the Boaventura Energy Complex (Itaboraí – RJ) and Reduc (Duque de Caxias – RJ) involves an estimated investment
of R$26 billion. This amount is included in the 2025-2029 Business Plan (PN 2025-2029), and service packages for the projects are currently
in the bidding phase.

This new structure will increase S-10
diesel production by 76 thousand barrels per day (bpd), 56 thousand of which from quality improvements and 20 thousand from additional
capacity. The project also provides for a 20