PHOENIX (AP) -- Gas prices in Arizona remain the lowest across the country for the fourth consecutive week.
AAA Arizona says that statewide, drivers are paying an average of $3.39 a gallon, an increase of a penny over last week's price.
Nationwide, drivers are filling up the tank for $3.70 a gallon.
Peoria has the cheapest gas in Arizona at $3.29 a gallon. Flagstaff has the highest, at $3.60 a gallon.
AAA Arizona says that the price of crude oil fell this week to a five-week low and is now trading in the low $90-a-barrel range.
The agency says the drop is because of this week's market reaction to concerns about the U.S. economy and ongoing global debt concerns.