The national average retail price of a gallon of diesel dropped for a third straight week in mid July, noted eTrucker and reported by the U.S. Energy Information Administration.
The national price declined 2.1 cents to $2.903 in the latest week.
Diesel prices have declined eight weeks out of the past nine.
The price is 36 cents higher than a year ago.
All regions declined in price led by a 3.3-cent drop to $3.022 in the Central Atlantic.
California diesel fell less than a penny to $3.123, remaining the most expensive in the U.S.
The cheapest diesel remained on the Gulf Coast at $2.857 a gallon.