U.S.-listed shares of Petrobras Brasileiro ( PBR ) are down near 5% after the state-owned energy company from Brazil raised the price of gasoline by 6.6% and boosted the price of diesel fuel by 5.4%, effective at midnight today, according to a U.S. regulatory filing this morning. The price hikes were less than many traders were expecting, according to Credit Suisse, leaving PBR's gasoline prices 13% below the international average. The Latin American markets are mixed, with Brazil's Ibovespa down and weakening further in late trade Wednesday.