Total consideration for the acquisition included a cash payment of $76.5m and assumption of about $118m in certain liabilities.

Westmoreland president and CEO Keith Alessi said the Kemmerer mine is an excellent strategic acquisition for Westmoreland and represents both growth and diversification for the company’s business.

Over the last five years, the mine has produced, on average, 4.8 million tons of high-quality sub-bituminous coal for sale to the adjacent Naughton power station, as well as various industrial customers located in the proximate geographic region.