Heading into the final weekend in May, gas prices in Minnesota are up 8 cents from last week, while prices in Iowa are up 10 cents from last Friday.
The average price per gallon in Iowa is $4.26 and the average price per gallon in Minnesota is at $4.22.
Oklahoma has the lowest price in the nation at $4.10 per gallon.
The national average price per gallon if $4.59.