Benzinga's Top Upgrades By: Benzinga via Benzinga November 03, 2015 at 09:08 AM EST Analysts at iBERIA Capital Partners upgraded Diamond Offshore Drilling Inc (NYSE: DO) from Underperform to Sector Perform. The price ... Read More >> Related Stocks: Chevron Corp Diamond Offshore Drilling MBIA Inc Red Hat Ringcentral Inc Tata Motors Ltd ADR Williams Partners LP