The national average price for a gallon of diesel took nearly a double-digit dive for the week ending Nov. 13 as prices fell 9.6 cents to $2.602, the Energy Information Administration said. This marked the third consecutive week of sharp declines, as prices fell 55.5 cents since the week ending Oct. 23.

Prices took the most dramatic dive in the regions that needed it the most, with the Rocky Mountain region posting a 14.1-cent drop to $2.766. Despite this, it remained the most expensive region in which to fill up. Prices held the steadiest in New England, as prices fell only 4.5 cents to $2.699. The cheapest region in which to buy diesel was once again the Lower Atlantic region, at $2.50 after a 10.8-cent rollback.

Despite the sizable rundowns, diesel prices were 47 cents above the year-earlier period.

For more detailed information on diesel prices, go to www.fleetowner.com/diesel.xls.