We'll go over the relationship between both of these indicators in other stocks similar to SandRidge Energy Inc. (NYSE:SD). These stocks are EV Energy Partners, L.P. (NASDAQ: EVEP ), Enerplus Corp (USA) (NYSE: ERF ), Halcon Resources Corp (NYSE: HK ), Kodiak Oil & Gas Corp (USA) (NYSE: KOG ), and Pengrowth Energy Corp (USA) (NYSE: PGH ). This group of stocks are the members of the oil & gas drilling & exploration industry and their market caps resemble SD's market cap.