Accident aboard FPSO Cidade de São Mateus

Rio de Janeiro, February 11, 2015 – Petróleo Brasileiro S.A. – Petrobras regretfully announces that an explosion took place aboard FPSO Cidade de São Mateus today, February 11^th, at approximately 12:50 p.m. The FPSO is operated by BW Offshore and is chartered by Petrobras. The unit has been operating since June 2009 in the post-salt of the Camarupim and Camarupim Norte fields, off the coast of Espírito Santo state, 120 km offshore. Out of 74 workers onboard, three have succumbed to their injuries and died on site; ten sustained injuries and have already been transferred by helicopter to receive medical care in the city of Vitória; and six are still missing.

BW Offshore is providing all the necessary assistance to its employees and family members with Petrobras support. The accident was controlled by the immediate deployment of the Contingency Plan, mobilizing all the necessary recourses. FPSO operations have been shut down. Production at this platform was of around 2.2 million cubic meters of natural gas per day, which represents approximately 3% of Petrobras natural gas production in Brazil.

Petrobras has officially notified the Brazilian Navy as well as Brazil’s National Petroleum, Natural Gas and Biofuels Agency (ANP). The Camarupim concession is operated by Petrobras (100%) and the Camarupim Norte concession is a partnership between Petrobras (65%) and Ouro Preto Energia (35%).

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

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