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 March, 2020

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 República do Chile, 65 
20031-912 - 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 on E&P assets in the Santos Basin

Rio de Janeiro, March 31, 2020 - Petróleo Brasileiro S.A. - Petrobras, following up on the release dated 02/27/2020, announces the beginning of the binding phase referring to the sale of all its equity interest in Merluza and Lagosta fields, located in the shallow waters of Santos Basin.

Qualified parties for this phase will receive a process letter with detailed instructions on the divestment process, including guidelines for due diligence and submission of binding proposals.

This disclosure complies with Petrobras' divestment guidelines and is aligned with the provisions of the special procedure for assignment of rights on exploration, development and production of oil, natural gas and other fluid hydrocarbons, provided for in Decree 9,355/2018.

This transaction is in line with the portfolio optimization and the improvement of the company's capital allocation, aiming at generation value for its shareholders.

About Merluza and Lagosta fileds

Operating since 1993, the Merluza fixed platform (PMLZ-1), located in a 135-meter water depth, is the oldest in operation in the Santos Basin and was installed for the production of natural gas and condensate from the field. Since April 2009, the offshore unit has also been responsible for the production of natural gas and condensate from the Lagosta field. The average production of the fields, in 2019, was 3.6 thousand boe/day.

Petrobras is the exclusive concessionaire of both concessions.

www.petrobras.com.br/ri

For more information:

PETRÓLEO BRASILEIRO S.A. – PETROBRAS | Investors Relations

email: petroinvest@petrobras.com.br/acionistas@petrobras.com.br

Av. República do Chile, 65 – 1803 – 20031-912 – Rio de Janeiro, RJ.

Tel.: 55 (21) 3224-1510/9947 | 0800-282-1540

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: March 31, 2020.

PETRÓLEO BRASILEIRO S.A—PETROBRAS

By: /s/ Andrea Marques de Almeida

______________________________

Andrea Marques de Almeida

Chief Financial Officer and Investor Relations Officer