Related by context. Frequent words. (Click for all words.) 55 TransCanada 54 Kinder Morgan 53 El Paso Pipeline 51 ConocoPhillips 51 TransCanada Corp. 51 Enbridge 51 NiSource 50 Natural Gas 50 natural gas 49 ONEOK 49 CenterPoint Energy 49 TransAlta 49 Petrohawk 49 Atmos Energy 48 Midstream 48 Marathon Oil 48 AGL Resources 48 Teekay 48 AEP 48 XTO 47 Kinder Morgan Energy 47 Nexen 47 ExxonMobil 47 Dominion Resources 47 Emera 46 Chesapeake Energy 46 Petro Canada 46 Husky Energy 46 Denbury 46 Encana 46 EnCana 46 Dynegy 46 Northeast Utilities 46 Gas Pipeline 45 Vectren 45 Piedmont Natural Gas 45 Foster Wheeler 45 Quanta Services 45 Oil Sands 45 Suncor 45 Allegheny Energy 45 Inergy 45 Products Partners LP 45 FMC Technologies 45 Energy Partners LP 45 SCANA 45 Ultra Petroleum 44 SandRidge 44 KeySpan 44 CenterPoint 44 Cabot Oil 44 Pengrowth 44 National Oilwell Varco 44 Exxon Mobil 44 UGI 44 ConocoPhillips COP 43 Calpine 43 Suncor Energy 43 Talisman Energy Inc. 43 NYSE COP 43 Nicor 43 Norfolk Southern 43 XTO Energy 43 Constellation Energy 43 Enbridge Energy 43 Questar 43 SaskPower 43 TXU 42 Progress Energy 42 Domtar 42 Sunoco 42 Willbros 42 Nucor 42 NRG Energy 42 Suncor Energy Inc. 42 LS Power 42 Anadarko Petroleum 42 EQT 42 Imperial Oil 42 Range Resources 42 Anadarko 42 Limited Brands 42 NSTAR 42 EOG 41 Cinergy 41 Grey Wolf 41 NorthWestern Energy 41 Conoco Phillips 41 Exelon 41 Pioneer Natural Resources 41 Pipeline 41 midstream 41 EnCana Corp. 41 Celanese 41 Canfor 41 Reliant Energy 41 PPL 41 Entergy 40 Talisman Energy 40 Anadarko Petroleum Corp. 40 Xcel Energy