Petrobras (PBR)

1.1 Transitory Tax Regime

The amounts presented in the Quarterly Information as of September 30, 2009 take into consideration the adoption of the Transitory Tax Regime by the Company, as permitted by Law 11.941, of May 27, 2009, the purpose of which is to maintain the fiscal neutrality of the changes in the Brazilian corporation law introduced by Law 11.638/07 and Law 11.941/09. The definitive option for the Transitory Tax Regime was manifested at the time of delivery of the corporate economic and tax information return (DIPJ) for calendar year 2008 on October 15, 2009 and is applicable to the 2008/2009 biennium. The temporary tax affects generated on account of applying the Transitory Tax Regime, when applicable, are computed and presented in deferred income and social contribution taxes.

1.1 Transitory Tax Regime

The amounts presented in the Quarterly Information as of March 31, 2009 take into consideration the adoption of the Transitory Tax Regime by the Company as permitted by Provisional Measure 449/08, the purpose of which is to maintain the fiscal neutrality of the changes in the Brazilian corporation law introduced by Law 11.638/07. The definitive option for the Transitory Tax Regime will be manifested later in the year at the time of delivery of the corporate economic and tax information return (DIPJ). The temporary tax effects generated on account on applying the Transitory Tax Regime, when applicable, are computed and presented in Deferred income and social contribution taxes.