Saudi Aramco Base Oil Company Luberef produces and sells base oils and various by-products in the Kingdom of Saudi Arabia and internationally. It offers various group I and group II base oils; and byproducts, such as asphalt, marine heavy fuel oil, slack wax, extract, and sulfur, as well as white products, including ultra-low sulfur diesel, naphtha, and drilling fluid. The company was incorporated in 1976 and is headquartered in Jeddah, the Kingdom of Saudi Arabia. Saudi Aramco Base Oil Company Luberef is a subsidiary of Saudi Arabian Oil Company.