Gasoline prices continue to rise. According to Triple-A, rising tensions in the Middle East coupled with a decrease in both gasoline inventories and oil supplies have kept prices elevated. The statewide average price for regular gas in Mississippi is three-18, up 11 cents from a week ago. However, that’s still well below the national average of three-47. Gas-buddy-dot-com reports the price of regular in Grenada ranges from three-10 to three-24 a gallon.