(Undated) — North Dakota motorists continue to pay slightly less than the national average as they top off the tank. As reported by Triple-A, the average price for a gallon of regular was unchanged yesterday in the Bismarck State at a tenth under three dollars, 41 cents, this as the corresponding national figure also increased to settle at a little over three fifty-eight. The cheapest gas – at just under three oh seven – was found yesterday in Colorado. At the opposite end of the spectrum, California motorists were paying an average of just over five bucks, 27 cents per gallon.