Company: PBR
Filing Date: 2025-11-17
Form Type: 6-K
Source: 0001292814-25-004008
Chunk: 18

Company: PETROBRAS - PETROLEO BRASILEIRO SA
Filing Date: 2025-11-17
Form: 6-K
Chunk 18
---
.

LTM Adjusted EBITDA – Adjusted EBITDA
for the last twelve months.

OCF -Net Cash provided by (used in) operating
activities (operating cash flow)

Operating income (loss) -Net income (loss)
before finance (expense) income, results in equity-accounted investments and income taxes.

Net Debt –Gross Debt less Adjusted
Cash and Cash Equivalents. Net Debt is not a measure defined in the IFRS Accounting Standards and should not be considered in isolation
or as a substitute for total long-term debt calculated in accordance with the IFRS Accounting Standards. Our calculation of Net Debt may
not be comparable to the calculation of Net Debt by other companies. Management believes that Net Debt is an appropriate supplemental
measure that helps investors assess our liquidity and supports leverage management.

Results by Business Segment – The information
by the company's business segment is prepared based on available financial information that is directly attributable to the segment or
that can be allocated on a reasonable basis, being presented by business activities used by the Executive Board to make resource allocation
decisions and performance evaluation.

When calculating segmented results, transactions with third
parties, including jointly controlled and associated companies, and transfers between business segments are considered. Transactions between
business segments are valued at internal transfer prices calculated based on methodologies that take into account market parameters, and
these transactions are eliminated, outside the business segments, for the purpose of reconciling the segmented information with the consolidated
financial statements of the company.

| 16 |

<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: November 17, 2025

PETRÓLEO BRASILEIRO S.A–PETROBRASBy: /s/ Fernando Sabbi Melgarejo

______________________________

Fernando Sabbi Melgarejo

Chief Financial Officer and Investor Relations
Officer