Founded in 1946, Rex Oil Company is a distributor of lubricants and motoring fuels. The company offers petroleum products for the commercial, mining and construction industries. It employs a staff of more than 60 employees and provides a selection of products under various brand names, including Citgo, Conco Philips and Sinclair. The company operates two service stations and has warehousing, distribution and office facilities. In addition, it specializes in fuel delivery, storage and marketing services. Rex Oil Company is also a division of the Commercial Fueling Network, which features more than three cardlock facilities. The company is headquartered in Denver.