Company: PBR
Filing Date: 2025-06-16
Form Type: 6-K
Source: 0001292814-25-002424
Chunk: 1

Company: PETROBRAS - PETROLEO BRASILEIRO SA
Filing Date: 2025-06-16
Form: 6-K
Chunk 1
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 the premises of the
2025-2029 Business Plan. The decision was submitted for approval by the competent bodies, in accordance with the company's governance
procedures.

The UCR will have the potential to process
up to 75,000 barrels/day of cargo, while the UHDT-D will be able to operate with up to 82,000 barrels/day. The UDA will have a capacity
of 130,000 barrels/day. These volumes highlight the importance of RNEST in expanding the production of higher value-added oil products
in Petrobras' refining system, promoting gains in productivity and contributing to the supply of low-sulphur fuels.

The units are expected to start operation
in 2029, doubling the refinery's installed capacity from the current 130,000 barrels/day to 260,000 barrels/day, making it Petrobras'
second largest refinery in terms of oil processing capacity.

www.petrobras.com.br/ri

For more information:

PETRÓLEO BRASILEIRO S.A. – PETROBRAS | Investor Relations

Email: petroinvest@petrobras.com.br/acionistas@petrobras.com.br

Av. Henrique Valadares 28 – 9º andar –
20031-030 – Rio de Janeiro, RJ

Phone: 55 (21) 3224-1510/9947

This document may contain forecasts
within the meaning of Section 27A of the Securities Act of 1933, as amended (Securities Act), and Section 21E of the Securities Exchange
Act of 1934, as amended (Exchange Act) that reflect the expectations of the Company's officers. The terms “anticipates,” “believes,”
“expects,” “predicts,” “intends,” “plans,” “projects,” “aims,”
“should,” and similar terms, aim to identify such forecasts, which evidently involve risks or uncertainties, predicted or
not by the Company. Therefore, future results of the Company's operations may differ from current expectations, and the reader should
not rely solely on the information contained herein.

<div align='center'>SIGNATURES</div>

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.

Date: June 16, 2025

PETRÓLEO BRASILEIRO S.A