Wintershall is a wholly owned subsidiary of BASF, which is based in Ludwigshafen, and specializes in energy. Wintershall is active in various regions of the world in the exploration and production of crude oil and natural gas. In Europe the BASF subsidiary trades and sells natural gas. Wintershall Holding AG also markets storage capacities for oil and gas, transportation capacities for gas as well as optic fiber capacities. Wintershall has been active in the exploration and production of oil and gas for more than 75 years, and with its headquarters in Kassel, Wintershall Holding AG is now Germany’s largest producer of crude oil and natural gas. In its exploration and production activities, Wintershall deliberately focuses on selected core regions where the company possesses a wealth of regional and technological expertise. These regions include Europe, North Africa, South America as well as Russia and the Caspian Sea region. In addition, these operations are complemented by the Wintershall Holding AG growing exploration activities in the Arabian Gulf.