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Agreement
between Petrobras and YPFB
Rio de Janeiro, December 18, 2009
� Petr�leo Brasileiro S/A � Petrobras announces that it signed today an
amendment to the gas purchase & sale agreement with Yacimientos
Petrol�feros Fiscales Bolivianos (YPFB).
The amendment is a result of the agreement between
the two companies, announced on February 2007, which consider the payment for
the liquid hydrocarbon fractions of the natural gas imported from Bolivia
after May 2nd, 2007, that increase the calorific content above 8900
kilocalories (kcal) per cubic meter (m3). The amendment termination date is
the same of the original contract and the monthly payments will be calculated
based on the international market price, considering an annual minimum amount
of USD 100 million and maximum of USD 180 million.
Regarding the payments related to the period before
the execution of this agreement, it was already calculated the 2007 payment
amount of USD 100 million and the other payments will be calculated after an
agreement about the gas volume imported and its calorific content.
Petrobras reiterates the information that the gas
sale agreements, already executed with distribution companies in Brazil, will
not be amended.
Sincerely,
Investor Relations
Department
www.petrobras.com.br/ri/english
Contacts: PETR�LEO BRASILEIRO S. A. - PETROBRAS
Investor Relations Department I E-mail: petroinvest@petrobras.com.br /
acionistas@petrobras.com.br
Av. Rep�blica do Chile, 65 � 22nd floor - 20031-912 - Rio de Janeiro, RJ I
Tel.: 55 (21) 3224-1510 / 9947

This document may
contain forward-looking statements within the meaning of Section 27A of the
Securities Act of 1933, as amended (Securities Act), and Section 21E of the
Securities Exchange Act of 1934, as amended (Exchange Act) that merely
reflect the expectations of the Company�s management. Such terms as
�anticipate�, �believe�, �expect�, �forecast�, �intend�, �plan�, �project�,
�seek�, �should�, along with similar or analogous expressions, are used to
identify such forward-looking statements. These predictions evidently involve
risks and uncertainties, whether foreseen or not by the Company. Therefore,
the future results of operations may differ from current expectations, and
readers must not base their expectations exclusively on the information
presented herein.
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