Company: PBR
Filing Date: 2025-06-03
Form Type: 6-K
Source: 0001292814-25-002328
Chunk: 0

Company: PETROBRAS - PETROLEO BRASILEIRO SA
Filing Date: 2025-06-03
Form: 6-K
Chunk 0
---
<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 June, 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 informs about Moody's global rating outlook

—

Rio de Janeiro, June 2, 2025–
Petróleo Brasileiro S.A. – Petrobras informs that the Moody's rating agency has changed the company's global credit rating
outlook from positive to stable. According to the agency, the decision follows the change in the outlook for Brazil's sovereign rating,
which took place on May 30, 2025.

Moody's reaffirmed Petrobras' credit rating
at “Ba1”, reflecting the company's solid credit metrics and positive track record of operational and financial improvement.

www.petrobras.com.br/ri

For more information:

PETRÓLEO BRASILEIRO S.A. – PETROBRAS | Investor Relations

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

Av. Henrique Valadares 28 – 9º andar –
20031-030 – Rio de Janeiro, RJ

Phone: 55 (21) 3224-1510/9947

This document