HOUSTON—Shell and Kroger Co. are expanding their exclusive alliance to continue helping customers save at the pump in multiple cities around the country. The fuel rewards loyalty program between Shell and Kroger provides shoppers the opportunity to save on fuels by using their Kroger Plus Card or other Kroger family of brand store loyalty card, and beginning July 26, Kroger customers in multiple states from Virginia to Arkansas can save money on their grocery bill and earn Fuel Points that can be used at the pump. New....