Related by context. Frequent words. (Click for all words.) 73 Arch Coal 68 Patriot Coal 56 Alpha Natural Resources 55 Consol Energy 54 Coal 53 Newmont Mining 53 Chesapeake Energy 52 Macarthur Coal 52 Cliffs Natural Resources 52 Barrick Gold 51 coal 51 Exelon 51 Massey Energy 50 Barrick Gold Corp. 49 Newmont Mining Corp. 49 Freeport McMoRan 48 ConocoPhillips 48 Cleveland Cliffs 48 Exelon Corp. 48 Marathon Oil 48 Chevron Corp. 47 thermal coal 47 BHP Billiton 47 Powder River Basin 47 Ameren 47 Rio Tinto Ltd 47 Burlington Northern 47 Rio Tinto 47 Range Resources 46 Monsanto Co. 46 coal gasification 46 Chalco 46 Norfolk Southern 46 BHP 45 Cameco 45 AK Steel 45 Allegheny Technologies 45 AK Steel Holding 45 BHP Billiton Ltd. 45 ArcelorMittal 45 Steel Dynamics 45 NRG Energy 45 Dynegy 45 Eldorado Gold 44 Smithfield Foods Inc. 44 Nalco 44 Doe Run 44 metallurgical coal 44 Emerson Electric 44 coal mining 44 Fortescue Metals Group 44 coal miner 44 AngloGold Ashanti 44 BHP Billiton Ltd 44 TransAlta 43 Alcoa 43 Xstrata 43 FutureGen 43 Monsanto 43 Archer Daniels Midland 43 iron ore miner 43 Exxon Mobil Corp. 43 Tyson Foods 43 Harrah Entertainment Inc. 43 AmerenUE 43 Consol 43 TransCanada Corp. 43 coking coal 43 Alcoa Inc 43 Fifth Third Bancorp 43 CF Industries Holdings 43 NYSE CAT 42 Anadarko Petroleum 42 Nucor 42 Molycorp 42 Arcelor Mittal 42 Smithfield Foods 42 Dominion Resources 42 Goldcorp 42 Suncor Energy 42 Exxon Mobil Corp 42 Tyson Foods Inc. 42 Sterlite Industries 42 CSX 42 coal mines 42 Exxon Mobil 41 Potash Corp. 41 Express Scripts 41 coal mine 41 Xcel Energy 41 Newcrest 41 Valero Energy 41 Xstrata Plc 41 Newmont 41 coal fired 41 TXU 41 AEP 41 Alcoa AA 41 ExxonMobil 41 E.On 41 Phelps Dodge