Petrobras joins new Brazilian fuel subvention program

Petróleo Brasileiro S.A. – Petrobras reports that its Board of Directors approved the company’s adherence to a new Brazilian federal economic subvention program for producers and importers of gasoline and road diesel oil, created by Provisional Measure 1,358.

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Form Type

6-K

Rhea-AI Filing Summary

Petróleo Brasileiro S.A. – Petrobras reports that its Board of Directors approved the company’s adherence to a new Brazilian federal economic subvention program for producers and importers of gasoline and road diesel oil, created by Provisional Measure 1,358.

The program is optional, and Petrobras considers participation compatible with its interests and complementary to existing subvention programs for road diesel commercialization in Brazil. Final adherence will depend on an ordinance from the Minister of Finance and related regulations. The company states that this move preserves its flexibility to maintain its current commercial strategy, which seeks to avoid passing short-term international price and exchange-rate volatility directly to the domestic market while optimizing refining asset profitability.

Key Terms

economic subvention program, Provisional Measure (MP) 1,358, commercial strategy, cyclical volatility of international prices

4 terms

economic subvention program financial

"approved the company’s adherence to the economic subvention program for producers and importers"

Provisional Measure (MP) 1,358 regulatory

"established by Provisional Measure (MP) 1,358, dated May 13, 2026"

commercial strategy financial

"Petrobras maintains its commercial strategy, considering its market share and the sustainable optimization"

cyclical volatility of international prices financial

"avoiding the transfer to domestic market of the cyclical volatility of international prices and the BRL exchange rate"

FAQ

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What did Petrobras (PBR) announce in this Form 6-K?

Petrobras announced Board approval to join a new Brazilian economic subvention program for gasoline and road diesel producers and importers. The program was created by Provisional Measure 1,358 and is intended to complement existing diesel subvention programs in Brazil.

What is the new economic subvention program Petrobras (PBR) is joining?

The program is a Brazilian federal economic subvention for producers and importers of petroleum-based fuels, specifically gasoline and road diesel oil. It was established by Provisional Measure 1,358 of May 13, 2026, and aims to support fuel production and importation under defined legislation.

Is Petrobras’ participation in the new subvention program already effective?

Participation is not yet fully effective. Petrobras’ adherence still depends on the publication and analysis of an ordinance by the Minister of Finance and related regulations. These steps are required for the new economic subvention program’s practical implementation as outlined in Provisional Measure 1,358.

How does this new program relate to Petrobras’ existing subventions?

The new adherence adds to existing economic subvention programs already in place for road diesel oil commercialization in Brazil. Petrobras indicates the new program is complementary, expanding the framework under which the company can benefit from federal subventions tied to fuel activities in the domestic market.

Does the new subvention change Petrobras’ fuel pricing strategy?

Petrobras states that its commercial strategy remains unchanged. The company continues to consider market share, refining asset optimization, and profitability, while seeking to avoid directly transferring cyclical international price and exchange-rate volatility to Brazilian consumers in the domestic fuel market.

Why does Petrobras consider adherence to the program in its interest?

The company notes the program is optional but highlights its potential benefit, stating that adherence is compatible with its interests. It also emphasizes that joining the program preserves flexibility to implement its established commercial strategy while operating under the new federal economic subvention framework.

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Accepted by SEC EDGAR 05/20/2026 - 07:39 PM EDT

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 May, 2026

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____

Petrobras announces adherence to the new economic subvention program

—

Rio de Janeiro, May 20, 2026 – Petróleo Brasileiro S.A. – Petrobras, announces that its Board of Directors, at a meeting held today, approved the company’s adherence to the economic subvention program for producers and importers of petroleum-based fuels, established by Provisional Measure (MP) 1,358, dated May 13, 2026. The economic subvention established under this MP covers amounts related to the production and importation of gasoline and road diesel oil, in accordance with applicable legislation.

Given the optional nature of the program and its potential benefit, this adherence is considered compatible with the company’s interests. This new adherence adds to the existing subvention programs related to the commercialization of road diesel oil in Brazil’s national territory already established by the Brazilian Federal Government.

The effective signing of the new adherence agreement will be subject to the publication and analysis of the ordinance to be issued by the Minister of Finance, as well as the related regulation necessary for the implementation of the economic subvention, as provided for in MP 1,358.

It is important to note that Petrobras maintains its commercial strategy, considering its market share and the sustainable optimization of its refining assets and profitability, avoiding the transfer to domestic market of the cyclical volatility of international prices and the BRL exchange rate.

This adherence preserves the company’s flexibility in implementing its commercial strategy. Petrobras remains committed to responsible, balanced, and transparent conduct.

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 – 9th floor – 20231-030 – Rio de Janeiro, RJ.

Tel.: 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 Trading Act of 1934, as amended (Trading 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 included herein.

SIGNATURES

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: May 20, 2026

PETRÓLEO BRASILEIRO S.A–PETROBRAS

By: /s/ Fernando Sabbi Melgarejo

______________________________

Fernando Sabbi Melgarejo

Chief Financial Officer and Investor Relations Officer

Source: View Original Filing on SEC EDGAR