1 MIN. DE LECTURA
SAO PAULO, July 18 (Reuters) - Shares of Brazil's state-run oil company Petrobras rose over 5 percent on the Sao Paulo stock exchange early on Friday after the results of a presidential poll showed greater odds of a new administration after the October election.
The Datafolha poll showed a technical tie between President Dilma Rousseff and her main challenger, Aecio Neves, in the second round. Rousseff's administration has kept down gasoline prices to control inflation, forcing Petrobras to import and sell fuel at a steep loss. (Reporting by Brad Haynes and Reese Ewing; Editing by Jeffrey Benkoe)