This excerpt taken from the PBR 6-K filed Jun 13, 2007.
a) Pesa Issues Notes
On May 07, 2007, Petrobras Energia S.A. (Pesa), a company indirectly controlled by Petrobras, issued notes amounting to US$300 with a term of 10 years and 5.875% interest p.a. Interest will be paid semiannually and the principal will be paid in a single installment at maturity. The issuance was made both in the Argentinean market and in the International market.