Gas prices headed up this week around Arizona. Triple-A Arizona says the price of gas rose nearly five-cents a gallon to $2.88 on average. The average price of gas in Flagstaff rose three-and-a-half cents to $2.95 a gallon. However, some stations are selling gas for $2.69 and lower. In Prescott, gas prices went up a cent-and-a-half to $3.02 a gallon. Some stations are selling gas for $2.85 and lower. Officials say the rise is due to the drone attack on oil production facilities in Saudi Arabia. They say the markets are still adjusting to what happened and it might take prices the rest of the month to adjust.