Petroleo Brasileiro Petrobras : Reduction of Significant Shareholding Interest

Rio de Janeiro, June 18, 2017 - Petróleo Brasileiro S.A. - Petrobras, in compliance with article 12 of CVM Instruction no. 358, dated of 1/3/2002, informs that it was notified by BlackRock, Inc. ('BlackRock') that the latter has sold preferred shares issued by the company, and as of June 14, 2018 it manages shareholding interest less than 5% of the preferred shares issued by Petrobras, and no longer qualifies as holder of significant shareholding interest in the capital stock of the company, as per the information below.

I. share interests held by BlackRock reached a combined 247,243,299 preferred shares and 31,943,412 American Depositary Receipts (ADRs), which represent preferred shares, totaling 279,186,711 preferred shares, equivalent to approximately 4.98% of total preferred shares issued by the company.

II. the purpose of the aforementioned share interests is strictly investment, with no intention to alter shareholding control or the administrative structure of Petrobras;

III. BlackRock did not celebrate any contracts or agreements governing the exercise of voting rights or the purchase and sale of securities issued by Petrobras;

IV. BlackRock has registered headquarters at 55 East 52nd Street, New York City, New York State, 10022-0002, United States of America.