HOUSTON--(BUSINESS WIRE)--Shell Oil Company (Shell), the largest fuel network in the United States, and Dunkin’ just announced a national expansion of their partnership with the Fuel Rewards® program.

CINCINNATI and HOUSTON, Sept. 23 /PRNewswire/ -- The Kroger Co., the nation's largest traditional supermarket retailer, and Shell, the no. 1 selling gasoline brand in the U.S., today announced the ...