National average retail diesel fuel pricing starting out for Spring 2023 decreased across the board once again to $4.13 per gallon as of March 28, 2023, according to the U.S. Energy Information Administration (EIA).
This average price represents a decrease of 6 cents per gallon compared to the prior week and a decrease of about $1.06 per gallon compared to one year prior.
Digging into U.S. Regional Diesel Fuel Prices
All regions again saw a price decrease for diesel fuel week-over-week and year-over-year. West Coast average prices have remained below the $5 per gallon mark (except for California, which still averages $5.17 per gallon of diesel).
The biggest week-over-week decrease was seen in the Rocky Mountain region for a second consecutive week at almost 12 cents below last week. The highest year-over-year decrease was seen in the Gulf Coast yet again, dipping $1.03 below the same time last year. Currently, two regions have dipped below the $4 per gallon mark: the Midwest and Gulf Coast.