Oppenheimer Technical Analysis Is In: Buy Refiners, Sell Materials And E&P By: Benzinga via Benzinga July 13, 2015 at 10:52 AM EDT Oppenheimer’s newest technical analysis report is in, and it’s not quite as bullish as past reports. According to analyst ... Read More >> Related Stocks: Airgas Cummins FMC Technologies Parker-Hannifin Praxair Southwestern Energy Tesoro Petroleum Co Valero Energy