The EIA reported that the national average diesel fuel price increased three cents from last week to $3.90 per gallon in the Gasoline and Diesel Fuel Update released January 27, 2014. The average diesel fuel price on the East Coast had the largest increase jumping five cents to $4.00 per gallon. Increasing four cents, the average diesel fuel price in the Midwest is now $3.87 per gallon. On the West Coast the average diesel fuel price only increased one cent to $3.98 per gallon. Both the Gulf Coast and Rocky Mountain regions remained unchanged from last week with an average diesel fuel price of $3.77 per gallon on the Gulf Coast, and $3.86 per gallon in the Rocky Mountain region.