RIO DE JANEIRO, Brazil, April 30 /PRNewswire-FirstCall/ -- Petrobras (NYSE: PBR, PBRA; BOVESPA: PETR4) announces the following webcast: What: Production Going on Stream at the PETROBRAS Tupi Field When: Thursday, April 30, 2009 at 2:30 PM ET Where: http://www.agenciapetrobrasdenoticias.com.br/ How: Live over the Internet -- Simply log on to the web at the address above. Contact: Press Management for Corporate Communications, +55 21 3224-1306 / +55 21 3224-2312, or e-mail, If you are unable to participate during the live webcast, the call will be archived at www.petrobras.com.br/ri/ingles. To access the replay, click on the Investor Relations section. About the event: Chief of Staff, Dilma Rousseff, and Mines & Energy minister, Edison Lobao, will participate in a press conference today with Petrobras' president and CEO Jose Sergio Gabrielli de Azevedo, and Exploration & Production director, Guilherme Estrella, about production going on stream at the Tupi field, the Company's biggest discovery in Brazil, with reserves estimated between five and eight billion barrels of oil equivalent (oil & gas). http://www.agenciapetrobrasdenoticias.com.br/DATASOURCE: Petrobras CONTACT: Press Management for Petrobras Corporate Communications, +011-55-21-3224-1306, or +011-55-21-3224-2312, Web site: http://www.petrobras.com.br/

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