All companies featured: Marathon Oil Corporation (NYSE:MRO), Noble Energy Incorporated (NYSE:NBL), ExxonMobil Corporation (NYSE:XOM), Clayton Williams Energy Incorporated (NYSE:CWEI), Apache Corporation (NYSE:APA), Diamondback Energy (NASDAQ:FANG), Occidental Petroleum (NYSE:OXY), EOG Resources Incorporated (NYSE:EOG), Pioneer Natural Resources Company (NYSE:PXD), Concho Resources Incorporated (NYSE:CXO), Cimarex Energy Company (NYSE:XEC), Southern Company (NYSE:SO),SCANA Corporation (NYSE:SCG)