Related by context. Frequent words. (Click for all words.) 57 NYSE RSG 50 ENSCO International 50 MDRX 50 Ladenburg Thalmann Financial 50 NYSE NOV 50 NYSE RDC 49 Copano Energy LLC 49 Vanguard Natural Resources 48 Approach Resources 48 DYN 47 Transfer Equity 47 CVR Energy 47 National Oilwell 47 Bronco Drilling 47 Baker Hughes BHI 47 Copano Energy 47 Allis Chalmers Energy 47 ATLS 47 Crimson Exploration 46 Parallel Petroleum 46 Schlumberger NYSE SLB 46 Grey Wolf 46 Peyto Energy 46 Schlumberger SLB 46 Ensco International 46 Rosetta Resources 46 BBEP 46 QEP Resources 46 Brigham Exploration 46 Dril Quip 46 AmTrust Financial 45 Enterra Energy 45 Atlas Pipeline Partners 45 NYSE THC 45 NAL Oil 45 Cal Dive International 45 NYSE ARG 45 Precision Drilling Trust 45 Psychiatric Solutions 44 GMXR 44 Legacy Reserves 44 QLGC 44 Quanta Services 44 Sterling Bancshares 44 Loring Ward 44 Hercules Offshore Inc. 44 BRCD 44 National Oilwell Varco 44 Newfield Exploration Company 43 Cimarex Energy 43 Harvest Natural Resources 43 Diamond Offshore Drilling 43 ADTN 43 Precision Drilling 43 Helix Energy 43 Crosstex Energy 43 ONNN 43 EVEP 43 Hercules Offshore 43 HLTH 43 FPIC Insurance Group 43 Transfer Partners LP 43 ESRX 42 Comstock Resources 42 Nabors Industries Ltd. 42 Bois d' Arc 42 Hornbeck Offshore 42 NuStar GP Holdings 42 Exco Resources 42 Hydril 42 Grant Prideco 42 Whiting Petroleum 42 TODCO 42 SRCL 42 Carrizo Oil & 42 Royale Energy 42 LINN Energy 41 Trican 41 Atlas Pipeline 41 EXCO Resources Inc. 41 Quicksilver Gas Services 41 Teppco 41 Expro 41 NuStar Energy 41 Newfield Exploration 41 Toromont 41 Petrohawk 41 EnQuest 41 Quicksilver Resources 41 BPZ Energy 40 PetroQuest 40 Atwood Oceanics 40 CMCSA 40 PrimeWest Energy 40 Bonavista Energy 40 NTRS 40 Magnum Hunter 40 Exterran Holdings 40 Pacific Rubiales Energy 40 Targa Resources Partners LP 40 IESI BFC Ltd.