Petrobras finds new pre-salt hydrocarbons in Campos

Petróleo Brasileiro S.A. – Petrobras reported a new hydrocarbon discovery in the pre-salt of the Campos Basin.

Rhea-AI Filing Summary

Petróleo Brasileiro S.A. – Petrobras reported a new hydrocarbon discovery in the pre-salt of the Campos Basin. The exploratory well 1-BRSA-1404DC-RJS, in block C-M-477 (Sector SC-AP4), is located 201 km off the coast of Rio de Janeiro at 2,984 meters water depth.

Hydrocarbon presence was identified through electric logs, gas shows, and fluid sampling. Samples will be analyzed in laboratories to characterize reservoir conditions and fluids, supporting continued evaluation of the area’s potential. Petrobras operates the block with a 70% working interest, alongside bp with 30%, under a concession from ANP’s 16th Bidding Round, consistent with its strategy to replenish oil and gas reserves in frontier exploratory areas.

Insights

Energy sector analyst

Petrobras announces a pre-salt hydrocarbon discovery in Brazil’s Campos Basin with further evaluation pending.

The disclosure highlights that Petrobras has found hydrocarbons in an exploratory pre-salt well in block C-M-477, 201 km offshore Rio de Janeiro at 2,984 meters water depth. The interval was confirmed using electric logs, gas shows, and fluid sampling.

Laboratory analysis of the collected samples will define reservoir conditions and fluid characteristics, which are essential to assess commercial potential. The block is operated by Petrobras with a 70% working interest, partnered with bp at 30%, fitting Petrobras’ strategy to replenish oil and gas reserves in frontier exploratory areas.

The finding supports Petrobras’ focus on pre-salt exploration during the energy transition and mentions that drilling was completed safely with respect for people and the environment. Future technical results from ongoing evaluation will be key to understanding the scale and viability of this discovery, though they are not detailed here.

Key Figures

Offshore distance: 201 km Water depth: 2,984 meters Petrobras working interest: 70% +2 more

5 metrics

Offshore distance 201 km Distance of well 1-BRSA-1404DC-RJS from coast of Rio de Janeiro

Water depth 2,984 meters Water depth at the location of well 1-BRSA-1404DC-RJS

Petrobras working interest 70% Operating interest of Petrobras in block C-M-477

bp working interest 30% Partner interest of bp in block C-M-477

Bidding round 16th Block C-M-477 originated from ANP’s 16th Bidding Round

Key Terms

pre-salt, Campos Basin, exploratory well, working interest, +1 more

5 terms

pre-salt technical

"new hydrocarbon discovery in deep waters of the pre-salt of the Campos Basin"

Campos Basin technical

"new hydrocarbon discovery in deep waters of the pre-salt of the Campos Basin"

exploratory well technical

"in an exploratory well drilled in Sector SC-AP4 of the Campos Basin"

working interest financial

"Petrobras is the operator of block C-M-477 (70% working interest), in partnership with bp (30% working interest)."

The working interest is the percentage ownership one party holds in an oil or gas lease that gives them the right to a share of production and also the obligation to pay a proportional share of exploration, development and operating costs. Think of it like owning a slice of a cake but also agreeing to pay part of the bill to bake it: a larger working interest means bigger potential revenue when wells produce, but also larger exposure to costs and liabilities if things go wrong.

concession regime regulatory

"The block originated from ANP’s 16th Bidding Round, under a concession regime."

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

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

Petrobras announced a new hydrocarbon discovery in the pre-salt of Brazil’s Campos Basin. The company identified hydrocarbons in exploratory well 1-BRSA-1404DC-RJS in block C-M-477, supporting its strategy to replenish oil and gas reserves in frontier exploratory areas.

Where is Petrobras’ new Campos Basin discovery located?

The discovery is in the pre-salt of the Campos Basin, in Sector SC-AP4 of block C-M-477. The well lies 201 kilometers off the coast of Rio de Janeiro, at a water depth of 2,984 meters, highlighting its deepwater and offshore nature.

How did Petrobras confirm the presence of hydrocarbons in the new well?

Petrobras confirmed hydrocarbons through electric logs, gas shows, and fluid sampling in well 1-BRSA-1404DC-RJS. These measurements indicate hydrocarbon-bearing intervals, and the collected samples will undergo laboratory analysis to characterize reservoir conditions and the fluids present in the discovery area.

What is Petrobras’ working interest in block C-M-477 in the Campos Basin?

Petrobras holds a 70% working interest and acts as operator of block C-M-477. Its partner bp holds the remaining 30%. The block comes from ANP’s 16th Bidding Round under a concession regime, fitting Petrobras’ partnership-based exploration approach.

How does the new discovery align with Petrobras (PBR) strategy?

The discovery aligns with Petrobras’ strategy to replenish oil and gas reserves in frontier exploratory areas. Operations in block C-M-477 are described as supporting national energy supply during the energy transition, combining reserve growth with deepwater exploration capabilities and partnerships with other companies.

What are the next steps after Petrobras’ Campos Basin discovery?

Next, Petrobras will send collected fluid samples for laboratory analysis to characterize reservoir conditions and fluid properties. These results will enable continued evaluation of the area’s potential, helping determine the technical and economic relevance of the pre-salt hydrocarbon discovery in block C-M-477.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/13/2026 - 07:59 AM EDT Learn about SEC filing dates

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 April, 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____

 

New hydrocarbon discovery in deep waters of the pre-salt of the Campos Basin
—

Rio de Janeiro, April 13, 2026 - Petróleo Brasileiro S.A. – Petrobras has identified the presence of hydrocarbons in the pre-salt of the Campos Basin, in an exploratory well drilled in Sector SC-AP4 of the Campos Basin, block C-M-477. Well 1-BRSA-1404DC-RJS is located 201 km off the coast of the state of Rio de Janeiro, at a water depth of 2,984 meters.

The hydrocarbon-bearing interval was identified through electric logs, gas shows, and fluid sampling. The samples will subsequently be sent for laboratory analysis, which will allow the characterization of the reservoir conditions and the fluids found, enabling the continuation of the evaluation of the area’s potential. The drilling of the well was completed safely, with full respect for the environment and for people.

Petrobras’ operations in block C-M-477, in the Campos Basin, are aligned with the Company’s strategy to replenish oil and gas reserves through activities in frontier exploratory areas, in partnership with other companies, ensuring the supply of national energy demand during the energy transition.

Petrobras is the operator of block C-M-477 (70% working interest), in partnership with bp (30% working interest). The block originated from ANP’s 16th Bidding Round, under a concession regime.

www.petrobras.com.br/ri

Para mais informações:

PETRÓLEO BRASILEIRO S.A. – PETROBRAS | Relações com Investidores

E-mail: petroinvest@petrobras.com.br/acionistas@petrobras.com.br

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

Tel.: 55 (21) 3224-1510/9947

Este documento pode conter previsões segundo o significado da Seção 27A da Lei de Valores Mobiliários de 1933, conforme alterada (Lei de Valores Mobiliários) e Seção 21E da lei de Negociação de Valores Mobiliários de 1934 conforme alterada (Lei de Negociação) que refletem apenas expectativas dos administradores da Companhia. Os termos: “antecipa”, “acredita”, “espera”, “prevê”, “pretende”, “planeja”, “projeta”, “objetiva”, “deverá”, bem como outros termos similares, visam a identificar tais previsões, as quais, evidentemente, envolvem riscos ou incertezas, previstos ou não, pela Companhia. Portanto, os resultados futuros das operações da Companhia podem diferir das atuais expectativas, e, o leitor não deve se basear exclusivamente nas informações aqui contidas.

 

Map indicates the location of the discovery in the Campos Basin

www.petrobras.com.br/ri

Para mais informações:

PETRÓLEO BRASILEIRO S.A. – PETROBRAS | Relações com Investidores

E-mail: petroinvest@petrobras.com.br/acionistas@petrobras.com.br

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

Tel.: 55 (21) 3224-1510/9947

Este documento pode conter previsões segundo o significado da Seção 27A da Lei de Valores Mobiliários de 1933, conforme alterada (Lei de Valores Mobiliários) e Seção 21E da lei de Negociação de Valores Mobiliários de 1934 conforme alterada (Lei de Negociação) que refletem apenas expectativas dos administradores da Companhia. Os termos: “antecipa”, “acredita”, “espera”, “prevê”, “pretende”, “planeja”, “projeta”, “objetiva”, “deverá”, bem como outros termos similares, visam a identificar tais previsões, as quais, evidentemente, envolvem riscos ou incertezas, previstos ou não, pela Companhia. Portanto, os resultados futuros das operações da Companhia podem diferir das atuais expectativas, e, o leitor não deve se basear exclusivamente nas informações aqui contidas.

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: April 13, 2026

PETRÓLEO BRASILEIRO S.A–PETROBRAS

By: /s/ Fernando Sabbi Melgarejo

______________________________

Fernando Sabbi Melgarejo

Chief Financial Officer and Investor Relations Officer