In the oil field, Leonardite is better known as “Lignite” and is predominantly used in water - based drilling mud. Leonardite Products oil field line of products is called LEN-OX. The colloidal and soluble properties (loss on ignition tests are 62% or higher)of LEN-OX help in fluid loss control, serve as clay deflocculants and improve filter cake quality. LEN-OX can be blended on site with caustic soda, and because of its unique organophilic properties, Leonardite can also be modified for use in oil-based drilling fluids.

Our Source™ line of products is used as a soil amendment and fertilizer additive. Leonardite adds organic matter to marginal soils improving texture, moisture holding capacity and pH stability. As a fertilizer enhancement, Leonardite improves a crop’s ability to absorb nutrients, resulting in faster growth, healthier and higher yields.

Foundries use Leonardite as an additive in green sand molding. It reduces clay viscosity, increases mold permeability, absorbs and retains water and improves mold shakeout. The use of Leonardite in green sand systems also improves the foundry environment for workers.

Leonardite is used for soil remediation with great success. Sodic and calcareous soils benefit greatly from the organic matter Leonardite adds to soil. Bacteria occur naturally in Leonardite, lending to a quicker recovery of once-contaminated soils.