Petrobras - Petroleo Brasileiro SA 6-K, filed May 18, 2020

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, 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, RJFederative 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 starts Gaspetro's non-binding phase

— ****

Rio de Janeiro, May 15, 2020 - Petróleo Brasileiro S.A. – Petrobras, following up on the press release disclosed on May 4, 2020, announces the beginning of the non-binding phase regarding the sale of its entire 51% stake in Petrobras Gás S.A. (Gaspetro).

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

The main subsequent stages of each project will be reported to the market in due course.

This disclosure complies with Petrobras' divestment guidelines and the special regime of asset divestment by federal mixed capital companies, provided for in Decree 9,188/2017.

These transactions are in line with the portfolio optimization and the improvement of Petrobras’ capital allocation, aiming at maximizing value for its shareholders.

About Gaspetro

Gaspetro is a holding company with equity interests in several natural gas distribution companies, located in all regions of Brazil. In 2019, the total volume of gas distributed was 29 million m^3^/day, serving about 500 thousand customers through a distribution network of more than 10 thousand km of gas pipelines.

Its corporate structure is formed by Petrobras, with 51% of the shares, and Mitsui Gás e Energia do Brasil Ltda., which holds the remaining 49% of the shares.

www.petrobras.com.br/ir

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: May 15, 2020

PETRÓLEO BRASILEIRO S.A—PETROBRASBy: /s/ Andrea Marques de Almeida

______________________________

Andrea Marques de Almeida

Chief Financial Officer and Investor Relations Officer