The national average diesel fuel price decreased one cent from last week to $3.87 per gallon according to the Gasoline and Diesel Fuel Update released by the EIA. Both the Rocky Mountain and East Coast diesel fuel prices increased by less than a penny to remain at $3.85 per gallon and $3.91 per gallon, respectively. Declining one cent, the Gulf Coast’s average diesel fuel price is now $3.76. Also declining by only one cent from last week the West Coast’s average diesel fuel price is now at $3.98 per gallon. The largest diesel fuel price decrease was in the Midwest where the average price per gallon went down two cents to $3.85 per gallon.