Gas prices are unchanged on average in Arizona this week. Triple-A Arizona says the average price of gas is $3.12 a gallon. Spokesman Aldo Vazquez we could see prices start to rise. He says, “August could be more expensive if crude oil prices, driven by the market concerns of rising COVID cases numbers, and how that could negatively affect oil demand in the near future.” In Flagstaff, gas prices are down a half-cent to $3.44 a gallon on average. Some stations are selling gas for $3.28 a gallon and lower. In Prescott, prices were up nearly two-cents a gallon over last week, sitting at $3.16 a gallon. Some stations are selling gas at $2.99 and lower.