Related by context. Frequent words. (Click for all words.) 58 PXP 51 XTO Energy 51 Anadarko Petroleum 51 XTO 50 Cabot Oil 48 Venoco 48 Petrohawk 47 Anadarko Petroleum Corp. 46 Pioneer Natural Resources 46 Chesapeake Energy 46 NYSE APC 45 McMoRan 45 Kerr McGee 44 Anadarko 44 Quicksilver Resources 44 drillers 44 SandRidge 44 Carrizo Oil & 44 Diamond Offshore Drilling 44 Magnum Hunter 44 XTO Energy Inc. 44 Energy XXI 43 EOG Resources 43 Ultra Petroleum 43 National Oilwell Varco 43 Chevron NYSE CVX 43 Mariner Energy 43 Goodrich Petroleum 43 CNOOC Ltd. 43 Exxon Mobil Corp 42 Unocal Corp. 42 Encana 42 Unocal 41 ConocoPhillips 41 Occidental Petroleum 41 BP PLC BP 41 Hyperdynamics 41 CNOOC 41 Roan Plateau 41 Cimarex 41 Crosstex Energy 41 Western Refining 41 Repsol YPF SA 40 Helix Energy 40 EOG 40 EnCana 40 Denbury 40 EOG Resources Inc. 40 Range Resources 40 TXCO 40 Hercules Offshore 40 Barnett Shale 40 deepwater exploration 39 CNX Gas 39 ConocoPhillips COP 39 ANWR 39 WMB 39 Piceance Basin 39 Cnooc 39 Gas Drilling 39 Talisman Energy Inc. 39 Haynesville Shale 39 Transfer Partners LP 39 Kosmos Energy 39 drilling 39 Chevron CVX 38 Carrizo 38 Ecopetrol 38 Ensco 38 Exxon Mobil 38 Petrobras 38 VAALCO 38 shale 38 Duvernay 38 CNOOC Ltd 38 Afren 38 Pemex 38 Occidental Petroleum Corp. 38 Marathon Oil 37 Chevron 37 Tanox 37 Exxon 37 Grey Wolf 37 Oneok 37 Statoil ASA 37 Kerr McGee Corp. 37 Calpine 37 offshore drilling 37 Pioneer Drilling 37 Kinder Morgan 37 Exxon Mobil XOM 37 coalbed methane 37 NYSE COP 37 Talisman Energy 37 Hornbeck Offshore Services 37 deepwater 37 shale gas 37 Exxon Mobil Corp. 37 FMC Technologies 37 Schlumberger 36 Chevron Corp.