CHARLESTON, W.Va. -- Gasoline prices have risen in West Virginia over the past week. AAA East Central says the average price for a gallon of regular, unleaded gasoline in the state is about $3.60. That's more than 6 cents higher than a week ago and about 24 cents higher than a year ago. Prices range from about $3.70 in Martinsburg to $3.50 in Huntington. Nationally, gas prices average $3.42 this week.