Wyo-Ben offers consistent quality drilling fluids for oil and gas exploration. We manufacture to API specifications and our Hydrogel® (API 13A Sec. 4) and Naturalgel® (API 13 Sec. 5) products meet and exceed these requirements. These materials are available in 100# bags, bulk bags, and bulk shipped in trucks or by rail. For further details on API requirements you can see their Web site at http://www.api.org.