The national average diesel fuel price declined to $3.39 per gallon according to the EIA’s weekly Gasoline and Diesel Fuel Update, a 1.4 cent decrease from last week. In both the Rocky Mountain and Midwest regions the average price per gallon of diesel dropped two cents from last week to $3.95 per gallon and $3.90 per gallon respectively. Declining one cent from last week the average price of diesel fuel is now $4.03 per gallon in both the West Coast and East Coast regions. At $3.79 per gallon, one cent lower than last week, the Gulf Coast currently has the lowest average diesel fuel price in the nation.