Casey's General Stores' aptitude for making shrewd acquisitions and delicious pizzas is proving to be a winning combination. Founded in 1959, Iowa-based Casey's General Stores (CASY 0.49%) has steadily expanded through the Midwest to become the third-largest convenience chain by store count in the United States. While this size alone makes Casey's a major player in the convenience store (c-store) industry, it is the company's beloved pizza that sets it apart from the crowd. As the fifth-largest pizza chain ...