Benzinga's Top Upgrades By: Benzinga via Benzinga June 13, 2016 at 09:07 AM EDT Analysts at Raymond James upgraded Penn West Petroleum Ltd (USA) (NYSE: PWE) from Underperform to Outperform. Penn West Petroleum ... Read More >> Related Stocks: Aptose Bioscns Endo Int'l Plc Endologix Inc Estee Lauder Co NVIDIA Corp On Semiconductor Pra Health