Company: PBR
Filing Date: 2025-06-25
Form Type: 6-K
Source: 0001292814-25-002499
Chunk: 0

Company: PETROBRAS - PETROLEO BRASILEIRO SA
Filing Date: 2025-06-25
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 Incentivized Debentures

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Rio de Janeiro, June 25, 2025 –
Petróleo Brasileiro S.A. – Petrobras, following up on the Material Facts disclosed on May 28 and May 30, 2025, announces
that it has concluded the bookbuilding process for the 8 (eighth) issuance of simple debentures, not convertible into shares,
unsecured, in the total amount of R$ 3,000,000,000.00 (three billion reais) (“Debenture Issuance”), which will be the
subject of a public distribution offering, pursuant to the Brazilian Securities and Exchange Commission (“CVM”) Resolution
No. 160, dated July 13, 2022, as amended (“CVM Resolution 160”), Law No. 12,431, dated June 24, 2011, as amended (“Law No. 12,431”), Decree No. 11,964, dated March 26, 2024, as amended (“Decree No