The cost of regular gas in Kentucky is up two-cents-a-gallon from a week ago. Triple-A says the average price per gallon in the state is two-dollars-and-75-cents today, while the national average is two-87. Drivers in the Huntington-Ashland area are paying the most in the Commonwealth at two-90 a gallon. The lowest prices are posted in the Elizabethtown-Fort Knox area at two-59.