Ven-Trol 401™ is a multipurpose drilling fluid additive designed to stabilize shale, prevent cuttings dispersion and provide lubricity in both water and oil base muds. Ven-Fyber 401™ is designed to reduce problems associated with drilling fluid sensitive shales. Ven-Trol 401™ incorporate an oil dispersible resin on a micronized cellulose fiber. The fibrous base provides a significant increase in seepage loss control, thereby improving the shale stabilizing capabilities of the oil dispersible resin.