According to AAA, the national average diesel fuel price is $6.31 per gallon. That compares to $6.26 one week ago and $3.63 per gallon one year ago. In Minnesota, the statewide average diesel fuel price is $6.20 per gallon. It is $6.06 in South Dakota and $6.05 per gallon in North Dakota. The average regular gas price nationwide is $4.29 per gallon. That compares to a pump price of just over $3 per gallon one year ago.
