Company: PBR
Filing Date: 2025-10-23
Form Type: 6-K
Source: 0001292814-25-003599
Chunk: 0

Company: PETROBRAS - PETROLEO BRASILEIRO SA
Filing Date: 2025-10-23
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 October, 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 results of ANP bidding process

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Rio de Janeiro, October 22, 2025 –Petróleo Brasileiro S.A. – Petrobras announces that it has acquired both blocks in the Campos Basin for which it submitted
offers during the 3rd Cycle of the Permanent Production Sharing Offer conducted by Brazil’s National Agency of Petroleum, Natural
Gas and Biofuels (ANP), successfully securing 100% of the bids submitted.

Petrobras acquired the Jaspe block in
partnership with Equinor Brasil Energia Ltda. The consortium will have Petrobras as the operator, holding a 60% stake, with Equinor holding
the remaining 40%. Petrobras also fully acquired the Citrino block.

The percentage of surplus oil to be made
available to the Federal Union was the sole criterion adopted by the ANP to determine the winning bid, as the fixed value of the signing
bonus was already established in the tender notice.

The signing bonus to be paid by the company
in March 2026 amounts to approximately R$ 37 million.