As the national average for a gallon of gas has decreased, Arizona prices remain about the same, up .2 cents to $3.71 per gallon since last week.
AAA says the national average has dropped about 7.6 cents to $3.73 per gallon.
Tucson and Flagstaff have the lowest and highest state fuel averages, at $3.47 and $3.90 per gallon, respectively.
Phoenix has an average gas price per gallon of $3.71.
AAA says South Carolina and California hold the lowest and highest average prices in the lower 48 states at $3.47 and $4.54 per gallon, respectively.