Gas prices could be below three-dollars a gallon on average very soon. Triple-A Arizona says the average price of gas in Arizona is down nearly seven-cents a gallon this week to $3.02. In Flagstaff, gas price were down a cent to $3.25 a gallon on average. Some stations are selling gas for $3.07 and lower. In Prescott, gas was down just over three-cents a gallon to $3.17 on average. Gas prices have fallen below three-dollars at some stations. Some stations are selling gas for $2.91 and lower. Officials say supply has finally caught up with demand and crude oil prices are lower, so prices at the pump are expected to keep falling in the near future.