CARBO Ceramics Inc. is the supplier of ceramic proppant and the resin-coated sand. The Company is the provider of the fracture simulation software, and a provider of fracture design and consulting services, and a range of technologies for spill prevention, containment and countermeasures. The Company sells its products and services to operators of oil and natural gas wells, and to oilfield service companies. The Company's products and services are primarily used in the hydraulic fracturing of natural gas and oil wells. The Company primarily manufactures five ceramic proppants. CARBOHSP and CARBOPROP are proppants designed primarily for use in deep oil and gas wells. It also sells fracture simulation software and provides fracture design, engineering and consulting services to oil and natural gas companies worldwide through its wholly owned subsidiary, StrataGen, Inc. The Company, during the year ended December 31, 2012, wound up its business in Applied Geomechanics, Inc.