Diesel rose 2.3 cents to $4.01 a gallon, and has topped $4 per gallon for the first time in more than six months.
The Department of Energy has also reported that Gasoline has dropped 6.8 cents to $3.368, which is its biggest decline in seven weeks.
Diesel is now 83.9 cents over the same week last year and Gasoline is now 49.2 cents over a year ago according to the DOE.