PBR.A Petroleo Brasileiro ADR

Changes in the Board of Directors

Rio de Janeiro, August 12, 2016 - Petróleo Brasileiro S.A. - Petrobras announces that the member of the Board of Directors Walter Mendes de Oliveira Filho resigned from the position of member of the Board of Directors and from the position of Chairman of the Statutory Audit Committee of the Company.

The Board of Directors of Petrobras approved the nomination of Mr. Walter Mendes for the position of President of Fundação Petrobras de Seguridade Social – Petros, which shall be assessed by the Deliberative Council of Petros.

In light of the resignation, the Board of Directors elected Mr. Marcelo Mesquita, appointed by Mr. Walter Mendes and by board member Guilherme Affonso Ferreira, as a member of the Board until the next General Shareholder’s Meeting of Petrobras, in accordance with Petrobras’ Bylaws and the Law 6,404/76, when it will be up to the minority shareholders holding common shares the election who will occupy this position.

The nomination of Mr. Walter Mendes and the election of Mr. Marcelo Mesquita complied with all the formalities of the analysis of integrity and of management and technical capacity, in accordance with the criteria, requirements and competences approved by the Board of Directors in October 2015.

Below is the curriculum of the new Board Member:

Marcelo Mesquita de Siqueira Filho - Has a degree in Economics from PUC-Rio, in French Studies from Nancy University II and an OPM (Owner/President Management) from Harvard, he is a co-founder partner of Leblon Equities (since 2008) and co-manager of equity funds and of Private Equity. He has 25 years of experience in the Brazilian stock market, having worked 10 years at UBS Pactual (1998-2008) and 7 years in Banco Garantia (1991-1998). At UBS Pactual, he was the co-responsible for the Capital Market area (2007-2008); co-responsible for the Stock area (2005-2007); and responsible for the Business and Strategist Analysis area (1998-2006). At Banco Garantia he was a commodities companies analyst of (1991-1997) and Investment Banker (1997-1998). Since 1995, he was appointed by investors as one of the leading analysts of Brazil according to several surveys made by Institutional Investor magazine. He was rated as "#1 Brazil Analyst" from 2003 to 2006 (#3 in 2002, #2 in 2001 and #3 in 2000). He was also rated as "#1 Stock Strategist in Brazil" from 2003 to 2005. Marcelo Mesquita worked in more than 50 transactions in the Brazilian stock market (IPOs), both in Garantia and UBS Pactual. Currently he is also a member of the Boards of Directors of BR Home Centers S.A., of Mills SI S.A. and of Tamboro Educacional S.A.

www.petrobras.com.br/ir

Contacts:

PETRÓLEO BRASILEIRO S.A. – PETROBRAS | Investor Relations Department I e-mail: petroinvest@petrobras.com.br

Av. República do Chile, 65 – 10th floor, 1002 – B – 20031-912 – Rio de Janeiro, RJ | Phone: 55 (21) 3224-1510 / 3224-9947

FORWARD-LOOKING STATEMENTS

This release includes forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, that are subject to risks and uncertainties. The forward-looking statements, which address the Company’s expected business and financial performance, among other matters, contain words such as “believe,” “expect,” “estimate,” “anticipate,” “optimistic,” “intend,” “plan,” “aim,” “will,” “may,” “should,” “could,” “would,” “likely,” and similar expressions. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date on which they are made. There is no assurance that the expected events, trends or results will actually occur. We undertake no obligation to publicly update or revise any forward-looking statements, whether as a result of new information or future events or for any other reason.

The Company’s actual results could differ materially from those expressed or forecast in any forward-looking statements as a result of a variety of assumptions and factors. These factors include, but are not limited to, the following: (i) failure to comply with laws or regulations, including fraudulent activity, corruption, and bribery; (ii) the outcome of ongoing corruption investigations and any new facts or information that may arise in relation to the “Lava Jato Operation”; (iii) the effectiveness of the Company’s risk management policies and procedures, including operational risk; and (iv) litigation, such as class actions or proceedings brought by governmental and regulatory agencies.   A description of other factors can be found in the Company’s Annual Report on Form 20-F for the year ended December 31, 2015, and the Company’s other filings with the U.S. Securities and Exchange Commission.