Gas prices are rising across Pennsylvania. Triple A says the average cost for a gallon of gas in the state is now at three-dollars and 38-cents per gallon, which is up about nine-cents compared to the week prior. Here at home the average cost of a gallon of gas is three-dollars-and-65 cents. Nationally, the average cost per gallon has risen to three-dollars and 22-cents per gallon. Prices are expected to continue to rise amid ongoing conflict in the Middle East.