The population of Ploiești National Coal Company is 2,009.
National Hard Coal Company's population is 2,007.
Ploiești National Coal Company's population is 100.
National Hard Coal Company's population is 11,740.
The population of UK Coal is 2,010.
The population of Foundation Coal is 3,300.
The population of Bulga Coal is 600.
Patriot Coal's population is 3,500.
The population of Arch Coal is 2,006.
National Coal Board was created in 1946.
The population of Coal India Limited is 383,347.
Pike River Coal's population is 2,010.
New Hope Coal's population is 250.