SAO PAULO/NEW YORK (Reuters) – Petróleo Brasileiro SA (PETR4.SA) has hired JPMorgan Chase & Co to handle $3 billion in planned asset sales this year, as fallout from a corruption scandal has shut access to financing for Brazil’s state-controlled oil producer, two sources with direct knowledge of the situation said on Wednesday. JPMorgan (JPM.N) will be tasked with luring the largest number of bidders possible for the assets and then structuring their sale, said a first source, who asked for anonymity since the process is private.