Gas prices have ticked up a smidge over the past week, two cents per gallon nationally, with an increase in oil prices as the driving factor.
GasBuddy has the national average at $3.11 per gallon, which is still down half a cent from the average a month ago.
Virginia drivers are paying 4.3 cents per gallon less than last week, with the statewide average at $2.99 per gallon…