Related by context. Frequent words. (Click for all words.) 66 Allis Chalmers Energy 65 Newfield Exploration 63 Comstock Resources 63 Cimarex Energy 63 Hercules Offshore 61 Brigham Exploration 61 Ultra Petroleum 61 ENSCO International 61 Magnum Hunter 60 Bronco Drilling Company 60 Approach Resources 60 Sterling Bancshares 59 Petrohawk 59 Whiting Petroleum 59 Vanguard Natural Resources 58 SandRidge Energy Inc. 58 GMXR 57 Concho Resources Inc. 57 Rosetta Resources 57 GeoResources Inc. 56 Cheniere Energy 56 Ensco International 56 Eagle Bulk Shipping 56 Copano Energy 56 Harvest Natural Resources 56 SandRidge Energy 56 Quicksilver Resources 56 OGE Energy 55 Cal Dive International 55 EOG Resources 55 Teekay Tankers 55 Crosstex Energy 55 Pioneer Drilling 55 BPZ 55 Hercules Offshore Inc. 55 Legacy Reserves 55 Carrizo Oil & 54 PetroQuest 54 Nabors Industries Ltd. 54 Parallel Petroleum 54 Atlas Pipeline Partners 54 Trico Marine Services 54 SandRidge 54 ExpressJet Holdings Inc. 54 McMoRan Exploration Co. 53 Pioneer Natural Resources 53 Helix Energy 53 Whiting Petroleum Corporation 53 EXCO Resources Inc. 53 Patterson UTI Energy 53 National Oilwell 53 Transfer Equity 53 NYSE RRC 53 TODCO 53 Bois d' Arc 52 EVEP 52 Cal Dive 52 GeoResources 52 Diamond Offshore Drilling 52 Enterra Energy 52 Grant Prideco 52 Quest Resource 52 XTO 52 TXCO 51 GlobalSantaFe 51 NFX 51 Gasco Energy 51 Petrohawk Energy Corporation 51 Denbury Resources Inc. 51 Mariner Energy 51 Cimarex 51 Gran Tierra 51 BPZ Energy 51 Cimarex Energy Co. 51 Applied Signal 51 Chesapeake Energy 51 National Oilwell Varco 51 McMoRan 50 Denbury Resources 50 Nabors Industries 50 Grey Wolf 50 Denbury 50 Royale Energy 50 NYSE TSO 50 Lexington Realty Trust 50 BreitBurn 50 FelCor Lodging Trust 50 Plains Exploration 50 Buckeye GP 50 MetroPCS Communications 50 Precision Drilling Trust 50 Energy XXI 50 Brigham Exploration Company 50 Precision Drilling 50 Petroflow 49 Allis Chalmers 49 EOG 49 XTO Energy Inc. 49 Ensco 49 RAIT Financial Trust 49 Martin Midstream Partners