Utah no longer has low-priced gasoline. For quite a while now, Utah has had either the lowest gas prices or the second-lowest prices nationwide. Now, 30 states have lower prices, according to travel-services agency AAA, which tracks gas prices nationally. The average cost of a gallon of unleaded gasoline in Utah is $2.09, which is now just three pennies shy of the national average of $2.06. (For a state by state comparison, go here.) Economists predict gasoline to creep up to the $2.30 range by summer. Gasoline always tends to rise during the warm months when many families hit the road on summer vacations.