Its primary business consists of the mining, sale and distribution of coal, which is purchased for use in electricity generation and steelmaking. Peabody also markets, brokers and trades coal through offices in China, Australia, the United Kingdom and the United States.
In 2016, Peabody recorded sales of 186.8 million tons of coal. Peabody markets coal to electricity generating and industrial customers in more than 25 nations on five continents. As of December 31, 2016, the company had approximately 5.6 billion tons of proven and probable coal reserves.
Peabody maintains ownership of majority interests in 23 surface and underground mining operations located throughout the United States and Australia. In the United States, company-owned mines are located in Wyoming, Colorado, Arizona, New Mexico, Illinois, and Indiana. Peabody's largest operation is the North Antelope Rochelle Mine located in Campbell County, Wyoming, mining more than 92 million tons of coal in 2016. Peabody spun off coal mining operations in West Virginia and Kentucky into Patriot Coal Corporation in October 2007. In October 2011, Peabody acquired a majority ownership stake in Queensland-based Macarthur Coal Ltd, which specializes in the production of metallurgical coal, primarily seaborne pulverized injection coal.
According to wikipedia