The average price of a gallon of on-highway diesel decreased 5.4 cents from last week to $2.284 per gallon for the week ending Monday, Dec. 21. This marks the lowest nationwide weekly average since May 25, 2009, when diesel prices were $2.274.
Diesel price averages went down in all 10 regions in the U.S., according to the Energy Information Administration. The largest average decrease was in the Rocky Mountain region, where prices at the pump dropped 7.1 cents per gallon. Prices were down 3.1 cents in the Gulf Coast region, the smallest decrease in the nation.
Following are the average prices by region as reported by the EIA:
U.S. – $2.284, down 5.4 cents
East Coast – $2.318, down 5.4 cents
New England – $2.397, down 5.6 cents
Central Atlantic – $2.438, down 6.3 cents
Lower Atlantic – $2.210, down 4.8 cents
Midwest – $2.227, down 6.7 cents
Gulf Coast – $2.181, down 3.1 cents
Rocky Mountain – $2.304, down 7.1 cents
West Coast – $2.505, down 4.7 cents
West Coast less California – $2.373, down 5.8 cents
California – $2.611, down 3.9 cents