Related by context. Frequent words. (Click for all words.) 54 TXCO 53 Petrohawk 53 GreenHunter Energy 52 Keyera 52 Magnum Hunter 52 Enogex 51 Legacy Reserves 51 Parallel Petroleum 51 PXP 51 Venoco 51 Petrodelta 51 SulphCo 51 Genoil 51 Wescorp 51 MMLP 51 Crosstex Energy 51 Gran Tierra 50 Sunoco Logistics 50 Energen Resources 50 TEPPCO 50 Harvest Natural Resources 50 GeoResources 50 MarkWest 50 Xtreme Coil 50 Martin Midstream Partners 50 GeoResources Inc. 50 OGE Energy 50 VAALCO 50 Quicksilver Gas Services 50 GMXR 50 BPZ Energy 49 Flotek 49 Cimarex 49 Petroflow 49 Vanguard Natural Resources 49 Cano Petroleum 49 Petro Andina 48 Calfrac 48 Stratic 48 Unicorp 48 Petro Vista 48 Atlas Pipeline 48 PetroQuest 48 ENGlobal 48 Canacol 48 Comstock Resources 47 Cheniere Energy 47 CVR Energy 47 Copano 47 Bois d' Arc 47 Royale Energy 47 IESI 47 Dynegy 47 Highpine 47 Waste Connections 47 Arkoma Basin 46 EOR 46 Ivanhoe Energy 46 PetroSun 46 TCEQ 46 Covanta 46 NuStar GP Holdings 46 Sempra Generation 46 Allis Chalmers Energy 46 Rentech 46 Approach Resources 46 NACEL Energy 46 BOEPD 46 Cenovus 46 Twin Butte 46 Gasco Energy 46 Bronco Drilling Company 45 Pan Orient 45 Denbury 45 McMoRan 45 Omega Protein 45 Sterling Bancshares 45 Midstream 45 Hercules Offshore 45 Hyperdynamics 45 Grant Prideco 45 BPZ 45 Cheniere 45 fracture stimulation 45 Syntroleum 45 Crosstex 45 ProspEx 45 EVEP 45 Magellan Midstream Partners LP 45 ENSCO International 45 Newpark 45 GreenShift 45 Willbros 45 Energy XXI 45 Gran Tierra Energy 45 BioFuels 45 Pengrowth 45 frac 45 Gulfsands 44 Piceance 44 fracing