Company: PBR
Filing Date: 2025-06-09
Form Type: 6-K
Source: 0001292814-25-002378
Chunk: 0

Company: PETROBRAS - PETROLEO BRASILEIRO SA
Filing Date: 2025-06-09
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 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 lawsuit involving Sete Brasil

—

Rio de Janeiro, June 6, 2025 –
Petróleo Brasileiro S.A. – Petrobras announces that it has been served in a lawsuit filed by Sete Brasil Participações
S.A. and its subsidiaries (SPEs), seeking, in general terms, compensation for alleged losses related to the Drilling Rigs Project (“Projeto
Sondas”). The amount unilaterally claimed by Sete Brasil in the lawsuit is R$ 36 billion.

Petrobras considers the allegations made
by Sete Brasil to be unfounded and does not acknowledge any responsibility for the alleged losses. Furthermore, the company informs that
it will vigorously defend itself in the proceedings as soon as the time frame for its response begins, which has not yet occurred, adopting
all necessary measures to protect its interests and those of its investors. The filing of this lawsuit will not impact Petrobras’
financial statements for the second quarter of 2025.

www.petrobras.com.br/ri

For more information:

PETRÓLEO