The group's principal activities are to explore, develop and produce oil and gas and mines leonardite (oxidized lignite coal). It operates through three primary segments: oil and gas exploration and production; oil and gas drilling and leonardite mining and processing. The group manufactures leonardite-based products, which are sold as oil and gas drilling mud additives. The group operates a leonardite mine and processing plant in Williston, North Dakota. The group owns a non-producing silver property in Arizona and minor amount of geothermal and other mineral rights in Oregon.
