JP Morgan Upgrades Petrobras To Overweight By: Benzinga via Benzinga June 15, 2015 at 09:21 AM EDT Analysts at JP Morgan upgraded Petroleo Brasileiro Petrobras SA (ADR) (NYSE: PBR) from Neutral to Overweight. The price target for ... Read More >> Related Stocks: Petrobras - Petroleo Brasileiro S.A.