Rio de Janeiro, April 29th, 2013 – Petróleo Brasileiro S.A – Petrobras announces that its has filed its annual report on Form 20-F for the fiscal year ended December 31, 2012 (the “2012 Annual Report”) with the U.S.

Securities and Exchange Commission (the “SEC”).

The 2012 Annual Report can be accessed by visiting either the SEC’s website at www.sec.gov or the Company’s website at www.petrobras.com.br/ir.

In addition, shareholders may receive a hard copy of the Company’s complete audited financial statements free of charge by requesting a copy from the Investor Relations Department through the website or at +55 21 3224 1510 or by sending an email to: .

For further information or questions regarding the 2012 Annual Report on Form 20-F, please contact the Investor Relations Department.

Sincerely,