The national average price for a gallon of unleaded remained essentially flat for the week ending Nov. 2 with the price falling four-tenths of a cent to $2.224 per gallon, according to federal data.

The price of gasoline is now 76.9 cents lower than it was a year ago, and fell in eight of the nine regions tracked by the U.S. Department of Energy. The price increased only in the Midwest where it rose 4 cents to $2.268. The sharpest decline came in the Rocky Mountain region, where it fell 6.2 cents to $2.24.

Among states, only three now have an average price above $2.50. Hawaii ($2.877), California ($2.83), and Nevada ($2.715) top the list of the AAA's Daily Fuel Gauge Report. Nine states now have gasoline costing less than $2 per gallon. South Carolina's $1.871 price is the nation's cheapest.

Meanwhile, the average price of diesel fell 1.3 cents to $2.485. Diesel fuel now costs $1.138 less than it did a year ago.