The national price increased 2 cents to $2.919 in the latest week and is 39.1 cents higher than a year ago.
Diesel will average $2.95 this year and $3.12 in 2011, the agency said.
For the first time in 17 months, the national average retail price of a gallon of diesel topped $3.
For a second week, the national average retail price of a gallon of diesel increased. The price gained 2.9 cents to $2.861, according to the Department of Energy. All regions reported higher prices, ranging from 0.7 ...
The price, which has climbed 15.3 cents since Dec. 21, is 56.5 cents higher than the same week last year.
The national average retail price of a gallon of diesel dropped 1.2 cents to $2.775.
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