Related by context. Frequent words. (Click for all words.) 69 ENSCO International 67 Allis Chalmers Energy 66 Dril Quip 66 Ensco International 66 Baker Hughes BHI 64 Harvest Natural Resources 64 Overseas Shipholding 63 Rowan Cos. 63 Rosetta Resources 63 PetroQuest Energy Inc. 62 Oceaneering International 62 Atwood Oceanics 62 Crimson Exploration 62 Flotek Industries Inc. 62 GeoResources Inc. 62 Newpark Resources Inc. 62 Whiting Petroleum 61 Energy XXI Bermuda 61 Emcor Group 61 Cal Dive International 61 National Oilwell 61 Comstock Resources 61 Newfield Exploration Co. 60 Atwood Oceanics Inc. 60 Newfield Exploration Company 60 Brigham Exploration 60 Cimarex Energy 60 Patterson UTI Energy 60 Newfield Exploration 59 NYSE SLB 59 Approach Resources 59 Concho Resources Inc. 59 Hercules Offshore Inc. 59 McMoRan Exploration 59 NYSE RDC 59 Vantage Drilling Company 59 Contango Oil & 59 Schlumberger SLB 59 Beacon Roofing Supply 58 NYSE NOV 58 National Oilwell Varco 58 Vanguard Natural Resources 58 Schlumberger NYSE SLB 58 NuStar Energy 58 MKS Instruments 58 Magnum Hunter Resources 58 Westlake Chemical 58 Dawson Geophysical Company 58 Carrizo Oil & 58 Trico Marine Services 58 Nabors Industries Ltd. 58 Parallel Petroleum 58 GMX Resources Inc. 58 NYSE RDS.A 58 Gastar Exploration 58 Anadarko Petroleum APC 57 McMoRan Exploration Co. 57 Diamond Offshore Drilling 57 NYSE OXY 57 FMC Technologies Inc. 57 Benchmark Electronics 57 NYSE RRC 57 NYSE MDR 57 Helix Energy 57 VAALCO Energy 56 NYSE RIG 56 Copano Energy LLC 56 Cimarex Energy Co. 56 Hercules Offshore 56 Halliburton HAL 56 Hornbeck Offshore 56 Callon Petroleum Company 56 Exco Resources 56 FelCor Lodging Trust 56 QEP Resources 56 oilfield 56 Hughes NYSE BHI 56 Rockwood Holdings 56 NYSE TSO 56 Royale Energy 55 Transocean Ltd. NYSE RIG 55 Crosstex Energy 55 Boardwalk Pipeline Partners LP 55 LNCR 55 Denbury Resources 55 Schlumberger Ltd 55 Magellan Midstream Partners 55 STR Holdings 55 NYSE EQT 55 Intrepid Potash 55 Schlumberger Limited 55 Willbros Group 55 offshore drilling contractor 55 BEXP 55 Exterran Holdings Inc. 55 Transocean RIG 55 Bronco Drilling Company 55 NYSE CNP 55 Mettler Toledo International 55 Cytec Industries 54 Grant Prideco