Vt. gas prices spike 6.8 cents in week (AP) - Gasoline prices in Vermont are continuing to go up. The website Vermontgasprices.com says the price of gasoline went up 6.8 cents in the last week to a statewide average of $3.76. That price is up almost 23 cents over the last month and 35 cents over a year ago. Analysts say the price spike is caused by instability in the Middle East, which is driving speculation.