Gerald Calk had specific requirements in mind when the state of South Carolina went out to bid for a new fuel card company a couple of years ago. Calk, who is state fleet manager for South Carolina, wanted to replace the current card he had with one that was compatible with state fuel sites and commercial fueling sites. He wanted the vendor to own an inventory of fuel in the state's underground storage tanks. He also wanted the price of the fuel to be connected to the Oil Price Information Service, an independently published price report for wholesale distribution racks.