Related by context. Frequent words. (Click for all words.) 42 coal miners 41 coal mines 41 coal mine 40 coalmines 39 coalfield 39 coal mining 38 miners 37 trapped miners 37 Montcoal 37 Kemerovo 37 colliery 37 coalmine 35 mine 34 cave ins 34 Linfen 33 trapped underground 33 miners trapped 33 CEO Don Blankenship 33 coal miner 33 cavern 33 Sago 33 Sago Mine 32 Randal McCloy Jr. 32 Cabin Creek 32 Sago mine 32 Peter Whittall 32 Sergei Shoigu 32 coalfields 32 Crandall Canyon 32 Mine Safety 32 Crandall Canyon mine 31 underground 31 collieries 30 explosion 30 MSHA 30 Kevin Stricklin 30 mine shaft 30 Shanxi province 30 coal 30 Colliery 30 Crandall Canyon Mine 29 mineworkers 29 methane 29 Li Yizhong 29 near Copiapo Chile 29 West Virginians 29 Manchin 29 Oppegard 29 Edison Pena 28 steelworkers 28 fatal accidents 28 mines 28 steelworks 28 Tangshan 28 Minister Laurence Golborne 28 mine shafts 28 rockfall 28 Shanxi Province 27 Brant Webb 27 coal seams 27 Governor Joe Manchin 27 Chornobyl 27 CONSOL 27 Gov. Joe Manchin 27 Chernobyl 27 Hunan province 27 Wheeling Jesuit University 27 tragedies 27 Consol Energy 27 Copiapo Chile 27 disasters 27 Massey Energy 27 miner 27 poisonous gases 27 cave 27 Guizhou province 26 rescuers 26 central Henan province 26 Mine Workers 26 Kanawha Valley 26 Chilean miners 26 Jay Rockefeller 26 brick kilns 26 coal seam 26 China Henan Province 26 Shanxi 26 Zijin 26 UMWA 26 breathable air 26 Manalich 26 Coal Mine 26 West Virginia 26 furnaces 25 mountaintop removal 25 methane gas 25 Patriot Coal 25 mining 25 Pisco 25 Gansu province 25 WV 25 mountaintop removal coal