The national average diesel fuel price declined by one cent from last week to $3.96 per gallon according to the EIA’s Gasoline and Diesel Fuel Update. Diesel fuel prices decreased across the nation, however the Rocky Mountain’s average diesel fuel price declined by less than a penny keeping the price at the same rate as last week, $3.98 per gallon. The East Coast and West Coast regions had a price decrease of one cent, bring the average price per gallon of diesel fuel in both regions down to $4.05. The Midwest’s average price per gallon of diesel fuel is now $3.94, one penny lower than last week. At $3.81 per gallon, down one cent, the Gulf Coast has the lowest average price in the nation.