Triple-A says the cost of a gallon of regular gas in KentucKY is four-cents higher than a week ago. The average price at the pump in the Commonwealth is two-dollars-and-76-cents today, while the national average is two-85. Drivers in Covington are paying the most per gallon at two-98 for regular. Owensboro and Elizabethtown are posting the lowest average price at two-56 a gallon.