For more than 50 years, Circle K Stores Inc. has been one of North Americas most popular operators of convenience stores. Based in Holbrook, Ariz., it has more than 3,300 stores across the United States and has over 4,000 international locations. It offers products , such as Premium Circle K Coffee, ThirstBuster fountain drinks, beer, snacks and candy, to name a few. In addition, Circle K Stores Inc. provides branded fuels, including Shell, BP, Citgo and Chevron.