Company: PBR
Filing Date: 2025-11-07
Form Type: 6-K
Source: 0001292814-25-003833
Chunk: 0

Company: PETROBRAS - PETROLEO BRASILEIRO SA
Filing Date: 2025-11-07
Form: 6-K
Chunk 0
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<div align='center'>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 November, 2025

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____</div>

<div align='center'>3Q25 — P-78 Arrival at the Búzios Field in September 2025 Performance Report 3Q25 I 2 DISCLAIMER Table of Contents Highlights
– 3Q25 4 Main items 6 Consolidated results 7 One-off events 8 Capex 10 Liquidity and capital resources 14 Debt metrics 16 Results
by business segment 17 Exploration and Production 17 Refining, Transportation and Marketing 19 Gas and Low Carbon Energies 20 Reconciliation
of Adjusted EBITDA 21 Exhibits 22 Financial statements 22 Financial information by business segment 31 Glossary 40 Performance Report
3Q25 I 3 DISCLAIMER Disclaimer This report may contain forward-looking statements about future events. Such forecasts reflect only the
expectations of the company's management about future economic conditions, as well as the company's industry, performance and financial
results, among others. The terms "anticipates", "believes", "expects", "predicts", "intends", "plans", "projects", "aims", "should", as