BMO Upgraded Africa Oil, Kosmos Energy This Morning: Here's Why By: Benzinga via Benzinga July 02, 2015 at 11:10 AM EDT In two separate reports published Thursday, BMO Capital Markets analyst Brendan Warn upgraded shares of AFRICA OIL CORP. (OTCMKTS: ... Read More >> Related Stocks: Africa Oil Corp Kosmos Energy Ltd iPath Dow Jones-Goldman Sachs Crude Oil Fund