Related by context. Frequent words. (Click for all words.) 63 NYSE MRO 61 Anadarko Petroleum 61 NYSE COP 60 Newfield Exploration 59 Anadarko 59 McMoRan Exploration Co. 59 NYSE CHK 58 Harvest Natural Resources 57 Exxon Mobil NYSE XOM 57 Rosetta Resources 57 GMXR 57 Anadarko Petroleum Corp. 57 NYSE HES 56 Chevron NYSE CVX 56 NYSE TSO 55 Exxon Mobil XOM 55 Pioneer Natural Resources 55 NYSE ECA 55 Comstock Resources 55 ConocoPhillips COP 54 Whiting Petroleum Corporation 54 ENSCO International 54 Approach Resources 54 Ultra Petroleum 54 Carrizo Oil & 54 ExxonMobil XOM 54 Allis Chalmers Energy 53 Anadarko Petroleum Corporation 53 Legacy Reserves 53 Petroleo Brasileiro 53 Schlumberger SLB 53 XOM 53 Crosstex Energy 52 Transocean RIG 52 Nabors Industries Ltd. 52 EXCO Resources Inc. 52 NYSE PBR 52 NYSE CNX 52 Petrohawk 52 NFX 52 NYSE TOT 51 NYSE XOM 51 Vanguard Natural Resources 51 Denbury Resources Inc. 51 NYSE CVX 51 ExxonMobil NYSE XOM 51 Woodford Shale 51 Barrick Gold ABX 50 Diamond Offshore Drilling 50 Chevron CVX 50 EOG Resources Inc. 50 BPZ 50 Magnum Hunter 50 Chesapeake Energy 49 EOG 49 CVX 49 AMLN 49 Occidental Petroleum Corporation 49 NYSE ABX 49 Energy XXI 49 Patterson UTI Energy 49 Royale Energy 49 VLO 49 NYSE EPD 48 Marathon Oil 48 AUY 48 Range Resources 48 EOG Resources 48 Talisman Energy Inc. 48 SandRidge Energy Inc. 48 WMB 48 Kosmos Energy 48 Mariner Energy 48 Bronco Drilling 48 Quicksilver Resources 48 ConocoPhillips 48 Roc Oil 47 Corp. VLO 47 BP PLC BP 47 Halliburton HAL 47 Ensco International 47 Hercules Offshore 47 EVEP 47 Transfer Equity 47 MarkWest Energy Partners LP 47 Burren Energy 47 Goodrich Petroleum 47 Cimarex 47 Cal Dive International 47 Denbury Resources 46 Regal Petroleum 46 MarkWest Energy Partners 46 Weingarten Realty Investors 46 deepwater Gulf 46 Atlas Pipeline 46 Statoil ASA 46 Questar Corp. 46 CHK 46 XTO 46 McMoRan 46 Plains Exploration