Change in Petrobras extension


Rio de Janeiro, Janurary 31 2005 – PETRÓLEO BRASILEIRO S/A - PETROBRAS, [Bovespa: PETR3/PETR4, NYSE: PBR/PBRA, Latibex: XPBR/XPBRA], a Brazilian international energy company, announces that, from February 5 2005 on, its phone prefix will have its 4 first digits altered from 2534 to 3224.
In spite of minimizing the inconvenient of this change, for 6 months the calls to the old prefix (2534) will be intercepted and a recorded message will inform the new prefix (3224).

The objective of this change is the magnification of the phone system, in order to improve the quality the reliability of the calls.