Company: PBR
Filing Date: 2025-09-11
Form Type: 6-K
Source: 0001292814-25-003264
Chunk: 0

Company: PETROBRAS - PETROLEO BRASILEIRO SA
Filing Date: 2025-09-11
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 September, 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 the settlement of its global notes offering—

Rio de Janeiro, September 10, 2025 –Petróleo Brasileiro S.A. – Petrobras, following up on the statements disclosed on September 3, 2025, announces
the settlement of its global notes offering in the international capital markets, totaling US$ 1 billion with maturity in 2030 and US$
1 billion with maturity in 2036, issued through its wholly-owned subsidiary Petrobras Global Finance B.V. (“PGF”).

The transaction was priced on September
3, 2025, and achieved the lowest spread over Brazilian Republic bonds since 2006 for the notes maturing in 2036, and the lowest since
2002 for the notes maturing in 2030. Additionally, it achieved the lowest spread over U.S. Treasury bonds since 2011 for the notes maturing
in 2036, and the lowest since 2001 for the notes maturing in 2030.

The total demand for the offering was
approximately 3.4 times higher than the volume issued