Goldman Sachs' Updated Outlook For E&Ps Based On $50 Oil Through 2020 By: Benzinga via Benzinga May 19, 2015 at 11:41 AM EDT Goldman Sachs readjusted ratings on several E&P stocks this week based on updated projections for OPEC productivity, shale ... Read More >> Related Stocks: Chesapeake Energy Continental Resources Gulfport Energy Corp Hess Corp Laredo Petroleum Holdings Inc Murphy Oil Newfield Exploration Occidental Petroleum Range Resources