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

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of September, 2024

Commission File Number 001-15106

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 
20241-030 - 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 of Form 20-F or Form 40-F.

Form 20-F x         Form 40-F ¨

This report on Form 6-K shall be deemed to be incorporated by reference into the Registration Statement on Form F-3 of Petróleo Brasileiro S.A. — Petrobras (No. 333-261817) and Petrobras Global Finance B.V. – PGF (No. 333-261817-01) and the related prospectus supplement dated September 3, 2024.

Exhibit 1.1 — Underwriting Agreement

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

PETRÓLEO BRASILEIRO S.A--PETROBRAS
By:	/s/ Guilherme Rajime Takahashi Saraiva
	Name: Guilherme Rajime Takahashi Saraiva
	Title: Attorney-in-fact
By:	/s/ Andre Luis Campos Silva
	Name: Lucas Tavares de Mello
	Title: Attorney-in-fact

Date: September 4, 2024