CST Brands
 CST Brands Inc. (NYSE: CST) is the second-largest publicly traded fuel and convenience retailer in North America with 1900 outlets in the U.S. and Canada. CST Brands had 2013 revenues of about $12.8 billion and made approximately $360 million in EBITDA. Stores are concentrated in the central and southwestern U.S. states and in eastern Canada. It also sells fuel under the Valero and Diamond Shamrock brands.