Related by context. Frequent words. (Click for all words.) 51 Diamond Offshore Drilling 48 Patterson UTI Energy 46 Diamond Offshore 46 National Oilwell Varco 44 Helix Energy 44 FMC Technologies 44 XTO Energy Inc. 43 Schlumberger 42 Willbros 42 Chesapeake Energy 41 Ensco 40 Transocean 40 Marathon Oil 40 oilfield 40 Pioneer Drilling 40 Chevron CVX 40 NYSE HAL 39 Occidental Petroleum 39 Chevron NYSE CVX 39 Pioneer Natural Resources 39 Halliburton 39 Chevron 39 Hornbeck Offshore Services 39 Mariner Energy 39 Schlumberger Ltd. 38 Carrizo Oil & 38 Kerr McGee 38 DryShips 38 Anadarko Petroleum 38 drilling rig 38 CVX 38 ConocoPhillips COP 38 XTO Energy 37 Halliburton Co. 37 Geokinetics 37 EOG Resources 37 Ultra Petroleum 37 Overseas Shipholding Group 37 Occidental Petroleum Corp. 37 EnCana 37 XTO 37 Syntroleum 36 ConocoPhillips 36 Energen 36 Oilfield 36 rigs 36 Atmos Energy 35 Anadarko Petroleum Corporation 35 Exxon Mobil 35 ONEOK 35 drilling rigs 35 Petrohawk 35 driller 35 Goodrich Petroleum 35 Consol Energy 35 Weatherford 35 Freeport McMoRan 35 Chevron Texaco 34 Repsol YPF 34 Piedmont Natural Gas 34 PEMEX 34 EOG Resources Inc. 34 ChevronTexaco 34 Tyson Foods 34 Chevron Corp. 34 Massey Energy 34 & Coots 34 Cabot Oil 34 Commercial Metals 34 ExxonMobil 34 Anadarko Petroleum Corp. 34 Dollar Thrifty Automotive 34 rig 34 Petrobras 34 Tyson Foods Inc. 33 Amerada Hess 33 Drilling 33 EDS 33 Exxon Mobil XOM 33 offshore drilling contractor 33 Questar 33 Sanderson Farms 33 Quicksilver Resources 33 Range Resources 33 EOG 33 XOM 33 ENSCO 33 rig Deepwater Horizon 32 Pemex 32 offshore rigs 32 McMoRan 32 Expro 32 Venoco 32 NYSE COP 32 CNX Gas 32 blowout preventer 32 downhole 32 Wireline 32 Pilgrim Pride 32 Repsol 32 Flowserve