Petrobras, further to the Material Facts disclosed on 09/28/2017 and 10/16/2017, reports that it filed with the Securities and Exchange Commission of Brazil ("CVM") documents related to the secondary public offering of common shares issued by BR (“Offer”), in compliance with CVM’s requirements.

The company also reports that it disclosed, on this date, the notice to the market and the preliminary prospectus regarding the Offer, to be held in Brazil, in the non-organized over-the-counter market, pursuant to CVM Instruction no. 400/2003 ("CVM Instruction 400") and other applicable legal provisions, to be coordinated by financial institutions that are members of the securities distribution system, including international placement efforts.

The selling price of the shares, as it will be agreed upon the pricing date of the offer, will be determined after the assessment of the outcome of the procedure that gathers investment intentions with institutional investors, to be held in Brazil and abroad, pursuant to the provisions set forth in article 44 of CVM Instruction 400 (bookbuilding).

Petrobras clarifies that such Offer is subject to the granting of registrations by the CVM and to market conditions.

This Material Fact is exclusively informative, pursuant to the legislation in force, and should not be construed as a notice of offer of shares. No record of the Offer or shares shall be made at any agency or of capital markets regulator in any other country, except in Brazil, with CVM.

The shares offered were not, and will not be, registered under the terms of the U.S. Securities Act of 1933, as amended, and may not be offered or sold in the United States without due register or an applicable registration exemption.

Facts deemed relevant will be timely disclosed to the market.