Cloud Peak Energy, the third largest coal producer in the U.S., is expected to go public this week.

Reuters reports: “analysts cautioned that demand for the offering could be tepid. The IPO is priced at a premium compared with competitors.”

Formed in 1993, Cloud Peak Energy operates three coal mines located in Montana and Wyoming. Cloud Peak coal is sold primarily to utilities and accounts for 6% of the electricity generated in the US.

Cloud Peak is subsidiary of Rio Tinto, which produces about 100 million tons of coal annually and controls 1 billion tons in proved and probable reserves. Cloud Peak is set to start trading this week under the ticker symbol “CLD.”

Madd Money‘s Jim Cramer said, “Cloud Peak Energy could quickly become the premium coal company in this country.”