Company: PBR
Filing Date: 2025-06-02
Form Type: 6-K
Source: 0001292814-25-002297
Chunk: 0

Company: PETROBRAS - PETROLEO BRASILEIRO SA
Filing Date: 2025-06-02
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 May, 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 update on agreement with Proquigel

—

Rio de Janeiro, May 30, 2025–
Petróleo Brasileiro S.A. – Petrobras, announces, following up on the disclosure made on May 23, 2025, that the agreement
with Proquigel, a subsidiary of Unigel, was ratified today by the Arbitral Tribunal and, as of this date, is now in effect.

The agreement resolves the existing contractual
disputes and litigation between the parties. As previously disclosed to the market, the agreement provides for the reinstatement of Petrobras'
possession of the fertilizer plants (FAFENs) in Bahia and Sergipe and the resumption of operations by Petrobras through a bidding process
for the contracting of Operation and Maintenance services, in compliance with applicable governance practices and internal procedures.

www.petrobras.com.br/ri

For more information:

PETRÓLEO BRASILEIRO S.A. – PETROBRAS | Investor Relations

Email: petroinvest@petrobras.com.br/acionistas@pet