Pittsburgh-based Consol is selling another 5% undivided interest in three coal mines known as the Pennsylvania Mining Complex (PAMC) to CNX Coal Resources Partnership, bringing CNX Coal’s stake in the mines to 25%.

The master limited partnership was created by Consol to hold its coal resources and then spun off to the market in an initial public offering on the New York Stock Exchange in June 2015, though Consol maintains a majority interest.