Related by context. Frequent words. (Click for all words.) 74 coal 62 thermal coal 58 coal mining 57 metallurgical coal 57 coking coal 56 coal mine 56 coal mines 54 coal miner 54 Peabody Energy 54 Steel 53 Mining 51 Arch Coal 51 iron ore 51 Natural Gas 51 Massey Energy 50 coal fired 49 Iron ore 48 coal miners 48 Metals 48 Consol 48 Gas 48 ArcelorMittal 47 Uranium 47 Mineral 47 Aluminum 47 CIL 46 Petroleum 46 Minerals 46 Cement 45 Tata Steel 45 mining 45 natural gas 44 Reliance Power 44 steelmaking 44 mines 44 mine 44 steel mills 44 steelmakers 43 Aluminium 43 Copper 43 Carbon 43 Elk 43 Energy 43 Metallurgical 43 coal seam gas 42 Mittal Steel 42 Nuclear 42 Mine 42 Mines 42 shale gas 42 Oil 42 Xstrata 42 Massey 42 Rio Tinto 42 Nickel 42 bauxite 42 Electric Power 42 smelter 41 Zinc 41 steel mill 41 Miners 41 Powder River Basin 41 Severstal 41 miner 41 Iron 41 Fertilizer 41 manganese 41 Nalco 40 AK Steel 40 alumina 40 Mountaineer 40 Geothermal 40 Nuclear Power 40 BHP Billiton 40 Appalachia 40 rare earths 39 Biomass 39 miners 39 Oil Sands 39 Blankenship 39 oil sands 39 coke 39 Barrick Gold 39 potash 39 uranium 39 Chalco 39 BHP 39 fossil fuel 39 Vedanta 39 LNG 39 Chesapeake Energy 39 NTPC 39 PPL 39 smelters 39 gas 39 Biofuels 39 molybdenum 39 CBM 38 steelmaker 38 Posco 38 Cairn