Jun 13 Environment The Driving Force Behind Recent Coal Mergers? Metallurgical Coal The coal industry and politicians have done a good job making it clear that Kentucky is a coal state. But not all coal is equal. Not chemically, not geologically and not financially. And some types of coal are much more valuable than others. The relative value of different types of coal is one force behind […] By Erica Peterson Jun 13 Environment The Driving Force Behind Recent Coal Mergers? Metallurgical Coal Erica Peterson