Leonardite Products LLC is an independently owned and operated mining and processing company located in Williston, North Dakota, an area boasting one of the richest Leonardite deposits in the world. Leonardite is the only material mined and processed at our plant.

We’re dedicated to providing high quality Leonardite in convenient and economical forms. Most Leonardite Products employees are also owners of the company, and as such take pride in the personal attention and hands-on service only a smaller, employee-owned company like ours can provide for our customers.

MSHA Mine ID # 32-00652
Federal lease NDM 065329
Mine Permit - GRGR-0501