The average price of gasoline in North Dakota jumped 23 cents per gallon in the past week.
Gas Buddy dot Com says the average price is now $3.23 – 43 cents higher than a month ago, and four cents higher than a year ago.
The national average is $3.40 per gallon.
Gas Buddy says the higher prices are due to refinery maintenance, the switch to the summer blend, and higher demand.