Diesel aid: Petrobras (NYSE: PBR) backs R$1.12/liter subsidy

Rhea-AI Filing Summary

Petróleo Brasileiro S.A. – Petrobras reports that its Board of Directors approved adherence to a new Brazilian economic subvention for road-use diesel oil of R$ 1.12 per liter commercialized, created by Provisional Measure (MP) 1,363 of May 30, 2026.

The program aims to stabilize diesel prices and supply in Brazil after a supply shock linked to conflict in the Middle East. Adherence is optional, and Petrobras states it considers the measure compatible with the company’s interests and commercial strategy.

By joining MP 1,363, Petrobras must discontinue qualification processes for earlier diesel subventions under MPs 1,340 and 1,349, although rights to subventions already owed under those measures are preserved. The new adherence is complementary to that previously authorized under MP 1,358 and is described as maintaining flexibility in pricing and refining strategy.

Key Figures

New diesel subvention: R$ 1.12 per liter Initial 2026 diesel subvention: Up to R$ 0.32 per liter Increased producer subsidy: Up to R$ 0.80 per liter +2 more

5 metrics

New diesel subvention R$ 1.12 per liter Economic subvention under MP 1,363, from June 1 to December 31, 2026

Initial 2026 diesel subvention Up to R$ 0.32 per liter MP 1,340, from March 12 to December 31, 2026, now suspended

Increased producer subsidy Up to R$ 0.80 per liter Under MP 1,349 for producers, from April 7 to May 31, 2026, now suspended

Increased importer subsidy Up to R$ 1.20 per liter Under MP 1,349 for importers, from April 7 to May 31, 2026, now suspended

Complementary subvention R$ 0.35 per liter MP 1,358, from June 1 to July 31, 2026, remains active

Key Terms

economic subvention, Provisional Measure (MP), PIS/Cofins, MF Ordinance No. 1,584, +1 more

5 terms

economic subvention financial

"approved the company’s adherence to the economic subvention granted to producers and importers of road-use diesel oil"

Provisional Measure (MP) regulatory

"This subvention was established by Provisional Measure (MP) 1,363, dated May 30, 2026"

PIS/Cofins financial

"PM 1,358, of May 13 | R$ 0.35/liter (equivalent to PIS/Cofins)"

MF Ordinance No. 1,584 regulatory

"According to MF Ordinance No. 1,584, of May 29 | From 06/01 to 07/31"

road-use diesel oil financial

"economic subvention granted to producers and importers of road-use diesel oil in Brazil"

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Accepted by SEC EDGAR 06/02/2026 - 08:12 AM Learn about SEC filing dates

FAQ

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

Petrobras announced Board approval to join a new Brazilian economic subvention for road-use diesel oil at R$ 1.12 per liter. The measure, under Provisional Measure 1,363, seeks to stabilize fuel price and supply after a supply shock from conflict in the Middle East.

What is the value of the new diesel subsidy Petrobras (PBR) is adhering to?

The new diesel subsidy provides R$ 1.12 per liter of road-use diesel commercialized. It was created by Provisional Measure 1,363 of May 30, 2026 and applies from June 1 to December 31, 2026, aiming to support price and supply stability in Brazil.

How does the new MP 1,363 subsidy affect prior diesel subventions for Petrobras (PBR)?

Adherence to MP 1,363 requires suspending qualification processes for earlier diesel economic subventions under MPs 1,340 and 1,349. However, Petrobras retains the right to receive economic subventions already owed under those prior measures, so existing entitlements are not cancelled by the new program.

What earlier diesel subsidy measures related to Petrobras (PBR) are mentioned?

The filing lists MPs 1,340, 1,349, and 1,358 from 2026, with subsidies up to R$ 0.32, then up to R$ 0.80 or R$ 1.20, and R$ 0.35 per liter. MP 1,358 remains active, while qualification under MPs 1,340 and 1,349 is suspended after adherence to MP 1,363.

Does the new diesel subvention change Petrobras (PBR)’s pricing strategy?

Petrobras states that adherence to the new subvention preserves flexibility in its commercial strategy. The company emphasizes maintaining a strategy based on market share, sustainable optimization of refining assets, and profitability, avoiding passing short-term international price and exchange rate volatility directly into domestic diesel prices.

What period does the new Petrobras (PBR) diesel subsidy cover in 2026?

According to the summary table, Provisional Measure 1,363 sets the R$ 1.12 per liter diesel subvention for the period from June 1, 2026 to December 31, 2026. This follows earlier 2026 measures that applied in March–May and June–July with lower per-liter subsidy levels.

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, 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

—

Rio de Janeiro, June 2, 2026 – Petróleo Brasileiro S.A. – Petrobras informs that its Board of Directors, at a meeting held yesterday, approved the company’s adherence to the economic subvention granted to producers and importers of road-use diesel oil in Brazil, in the amount of R$ 1.12 per liter commercialized. This subvention was established by Provisional Measure (MP) 1,363, dated May 30, 2026, with the purpose of stabilizing price and supply to ensure the national availability of the fuel, in light of the supply shock resulting from the armed conflict in the Middle East.

Given the optional nature of the program and its potential benefit, this adherence is considered compatible with the company’s interests.

Petrobras also informs that, pursuant to MP 1,363, adherence to this new subvention requires the discontinuation of the qualification processes related to the economic subventions for road diesel oil previously established under MPs 1,340/2026 and 1,349/2026. This adherence, however, does not affect the right to receive economic subventions already owed to producers or importers under MPs 1,340 or 1,349.

Additionally, it should be noted that the adherence to the new subvention is complementary to the adherence previously authorized under MP 1,358, dated May 13, 2026.

Summary Table – Economic subvention related to road-use diesel oil:

Provisional Measure (PM)	Economic Subvention	Period (2026)	Qualification
PM 1,340, of March 12	Up to R$ 0.32/liter	From 03/12 to 12/31	Suspended
PM 1,349, of April 7	Increased the subsidy of PM 1,340 to up to R$ 0.80/liter for producers and up to R$ 1.20/liter for importers	From 04/07 to 05/31	Suspended
PM 1,358, of May 13	R$ 0.35/liter (equivalent to PIS/Cofins) According to MF Ordinance No. 1,584, of May 29	From 06/01 to 07/31	Active
PM 1,363, of May 30	R$ 1.12/liter	From 06/01 to 12/31	Active

Petrobras emphasizes that it maintains its commercial strategy, considering its market share and the sustainable optimization of its refining assets and profitability, avoiding the transfer to domestic prices of the short-term volatility of international quotations 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: June 2, 2026

PETRÓLEO BRASILEIRO S.A–PETROBRAS

By: /s/ Fernando Sabbi Melgarejo

______________________________

Fernando Sabbi Melgarejo

Chief Financial Officer and Investor Relations Officer