Consumers are enjoying low prices at the pump, but that’s making it harder to find certain fuels. Last week there was no premium unleaded gasoline in Iowa, said Dawn Carlson, president of Petroleum Markets and Convenience Stores of Iowa. Several local stores are members of the organization, a nonprofit trade association. Since Iowa is short on premium unleaded gasoline, retailers and distributors are having to go farther away to fill their tanks. Kent Hanstein, co-owner of Le Mars Truck Stop, said that could be Kansas City, Mo., or Sioux Falls, S.D. That adds to the cost of fuel for the retailer, he said. “It might be a difference of two to four cents a mile for freight, up to possibly 12 cents a mile for freight,” Hanstein said. Hanstein said fuel shortages in the fall with the harvest are common, but this year it’s a little […]