The national average retail diesel price fell 4.8 cents to $3.956 a gallon for the week ended Monday, May 21, according to the U.S. Department of Energy’s Energy Information Administration. The price has fallen 19.2 cents in the last six weeks and fell below $4 a gallon for the first time since the week ended Feb. 20 and is 4.1 cents below the same week in 2011.
Average retail prices fell in all regions, led by a 6.2-cent decrease in the New England. The nation’s cheapest diesel was $3.854 in the Midwest, while the most expensive was $4.303 in California.
Complete diesel price information is available on EIA’s Website