Related by context. Frequent words. (Click for all words.) 70 Calpine 66 TXU 64 Mirant 61 NRG Energy 60 TXU Corp. 58 NRG 57 AEP 55 Lyondell 55 Sempra 55 NiSource 53 Reliant Energy 52 Cinergy 51 Allegheny Energy 51 Exelon 51 Constellation Energy 51 Exelon Corp. 50 TransAlta 50 ERCOT 50 Pilgrim Pride 50 VeraSun 50 CenterPoint Energy 50 CF Industries 49 Dominion Resources 49 Entergy 49 NorthWestern 49 CenterPoint 49 Nicor 48 AGL 48 Enron 48 Alinta 48 WorldCom 48 FERC 48 ONEOK 48 Wheeling Pitt 48 Gas Natural 47 ConocoPhillips 47 Ameren 47 FPL Group 47 Kinder Morgan 47 MidAmerican 47 SWEPCO 46 natural gas 46 Arch Coal 46 Spectra Energy 46 Temple Inland 46 Cleco 45 Tenneco 45 Sempra Energy 45 Vectren 45 NextEra Energy 45 Boralex 45 Emera 45 Agrium 45 AmeriCredit 45 Peabody Energy 44 Aquila 44 RWE 44 Covanta 44 Endesa 44 FirstEnergy 44 Grey Wolf 44 Airgas 44 Nucor 44 MBIA 44 E.On 43 coal fired 43 Oncor 43 Progress Energy 43 Asarco 43 Corn Products 43 Comverge 43 PSEG 43 Cleveland Cliffs 43 Iberdrola 43 XTO Energy 43 Dean Foods 43 Alpha Natural Resources 43 Westar Energy 43 Chesapeake Energy 43 Crown Castle 43 FutureGen 43 Stelco 43 FirstEnergy Corp. 42 Cumulus 42 ConAgra 42 AbitibiBowater 42 Phelps Dodge 42 Altria 42 LyondellBasell 42 Enbridge 42 Emmis 42 Independent System Operator 42 Tronox 42 FPL 42 Omnicare 42 Pacific Ethanol 42 Xcel Energy 42 Refco 42 E.ON 42 Celanese 42 Genesco