PHOENIX -- Gasoline prices around Arizona are only slightly higher at the pump this week.
Officials with Triple-A Arizona said Thursday that the average statewide price for unleaded regular gasoline is $3.15 a gallon. That's up by half a penny from last week.
This week's national average is at $3.25 per gallon, unchanged from the previous week.
Tucson has Arizona's lowest average gasoline price at $3.06 a gallon and Flagstaff has the highest at $3.34.
Missouri has the lowest average gas prices in the continental U.S. at $2.90 a gallon with Connecticut having the highest at $3.66 a gallon.