UPDATE 4-Exxon leads big bets by oil majors on Brazil's offshore reserves
March 29, 2018 at 17:07 PM EDT
RIO DE JANEIRO, March 29 (Reuters) - Exxon Mobil Corp roared into Brazil's prolific offshore oil fields again on Thursday, clinching eight blocks in partnership with other oil firms eager to lap up the country's choice reserves ahead of presidential elections later this year.