What's Driving Up Petrobras And How Far Will It Go? By: Benzinga via Benzinga November 21, 2014 at 15:43 PM EST It would be an understatement to say that Petroleo Brasileiro Petrobras SA (ADR)(NYSE: PBR) shares have had a rough ride in the last ... Read More >> Related Stocks: Petrobras - Petroleo Brasileiro S.A.