Gas price tracking website GasBuddy reports the price in Virginia for regular dropped by 2-1/2 cents per gallon in the last week, averaging $3.31. That’s over 22 cents a gallon lower than a month ago. The national price of gasoline is up by a half-cent a gallon in the last week, averaging $3.51. Analysts say oil prices have been rising so they expect gas prices to rise as Memorial Day approaches.