 The average price of a gallon of gasoline in North Dakota went up more than 4 cents in the past week. That's according to GasBuddy.com. The website is saying the average price in North Dakota is now $3.35 a gallon. That's more than 15 cents higher than a month ago, but 8 cents lower than a year ago. Bill Dubinsky, NewsRadio 1310 KNOX and KNOXradio.com.