Wyo-Ben, Inc. is a leading manufacturer of Bentonite Clay based products. Our materials are used worldwide in applications such as oil, gas, and water well drilling, metalcasting, environmental construction and remediation, hazardous waste treatment, cat litter, cosmetics and pharmaceuticals, as well as many other industrial and consumer related products. Headquartered in Billings, Montana, Wyo-Ben mines its reserves from the Big Horn Basin region of Wyoming, the richest deposit of benonite ...