Gasoline prices in Arizona are down again this week.
Officials with AAA Arizona said Thursday that the average price around the state for unleaded regular gasoline is $3.36 a gallon at the pumps. That's down by more than 4 cents from last week.
This week's national average is $3.39 per gallon, down by more than 6 cents from last week.
Analysts say prices are lower because the price of crude oil fell and there is a continued increase of gasoline inventories.
Tucson has the lowest average gasoline price in Arizona at $3.25 a gallon while Flagstaff has the highest price at $3.59.
Missouri has the lowest average gas prices in the continental U.S. at $3.11 a gallon with California having the highest at $3.80 a gallon.