Founded in 1966, Oklahoma Tank Lines / United Petroleum Transports, offers petroleum products and transportation services. The company also provides asphalt, lube oils and petrochemicals to customers. It maintains a fleet of more than 500 trailers that store various products, including petrochemicals, caustics, solvents, mineral spirits, antifreezes and lubricating oils. In addition, the company operates an apparel store, which offers men s and women s wear. Its Web site provides online newsletter and information on equipment available for sale. The company serves oil companies, convenience store operators and petroleum-based organizations. It has operations in Oklahoma, Kansas, Texas, Arizona and New Mexico. Oklahoma Tank Lines / United Petroleum Transports is located in Oklahoma City.