Coal, Grade : A Grade

Coal is a combustible sedimentary rock made up mostly of carbon. It is a fossil fuel that is abundant throughout the United States. Its origins began millions of years ago and are the altered remains of prehistoric vegetation that accumulated over time. These prehistoric plants were buried with the solar energy they once absorbed and over time the plant material was subjected to high temperature and pressures, eventually forming the energy source we know as coal.
Oxbow Carbon provides bituminous coal which is the most common type mined in the United States and the type of coal primarily used to generate electric power.