Bank Of America Upgrades Petrobras, Says Return To Financial Health Likely By: Benzinga via Benzinga May 10, 2018 at 15:49 PM EDT Improving oil prices mean a "major change" to the investment profile of Brazil-based Petroleo Brasil/ADR (NYSE: PBR), ... Read More >> Related Stocks: Crude Oil Petrobras - Petroleo Brasileiro S.A.