Related by context. Frequent words. (Click for all words.) 69 ENSCO International 63 Ensco International 63 Diamond Offshore Drilling 62 NYSE NOV 61 Oceaneering International 61 NYSE FTI 60 NYSE HAL 60 NYSE RRC 59 Allis Chalmers Energy 58 Dril Quip 58 Schlumberger NYSE SLB 57 Hercules Offshore 56 National Oilwell Varco 56 NYSE CNX 56 NYSE PDE 56 Approach Resources 56 Crimson Exploration 55 Transocean NYSE RIG 55 FMC Technologies Inc. 55 Overseas Shipholding 54 Brigham Exploration 54 Comstock Resources 54 NYSE FLR 54 NYSE XTO 54 Newfield Exploration 54 Quanta Services 54 Schlumberger SLB 54 Patterson UTI Energy 54 NYSE URS 54 Newfield Exploration Company 54 GeoResources Inc. 53 Nabors Industries Ltd. 53 NYSE APC 53 McMoRan Exploration Co. 53 Harvest Natural Resources 53 EXCO Resources Inc. 53 Sempra Energy NYSE SRE 53 Callon Petroleum Company 53 NYSE TSO 53 Cal Dive International 53 Cimarex Energy 52 Bronco Drilling 52 Vanguard Natural Resources 52 Rosetta Resources 52 Ensco 52 NYSE HES 52 Brigham Exploration Company 52 Parallel Petroleum 52 Diamond Offshore 51 Newfield Exploration Co. 51 National Oilwell 51 Carrizo Oil & 51 Chevron NYSE CVX 51 offshore drilling contractor 51 Helix Energy 51 Transocean RIG 51 Concho Resources Inc. 51 EQT Corporation 51 PetroQuest 50 Royale Energy 50 Pioneer Drilling 50 NYSE ECA 50 Gasco Energy 50 NYSE ARG 50 FWLT 50 Exxon Mobil NYSE XOM 50 Hercules Offshore Inc. 50 Grant Prideco 50 Boardwalk Pipeline Partners LP 49 Bronco Drilling Company 49 Crosstex Energy 49 Whiting Petroleum 49 Halliburton HAL 49 NYSE MRO 49 GMXR 49 Uranium Resources 49 Flotek 49 Whiting Petroleum Corporation 49 NYSE PGN 49 BBBY 49 FMC Technologies 49 Trico Marine Services 49 Denbury Resources 49 Ultra Petroleum 49 CIRCOR International 49 NFX 48 EMCOR Group 48 PowerSecure International 48 Hornbeck Offshore Services 48 TDW 48 Legacy Reserves 48 Pioneer Natural Resources 48 Westlake Chemical 48 Schlumberger Limited 48 Exterran Holdings 48 Island Fabrication 47 Annaly Capital Management 47 EOG Resources 47 Nabors Industries 47 Hatteras Financial 47 NYSE DPL