The diesel benchmark price used for most fuel surcharges took its biggest one-week leap Monday since January.
The Department of Energy/Energy Information Administration average weekly retail diesel price rose 6 cents a gallon to $3.536. It ends a streak of five consecutive declines and is the biggest increase since the price of Jan. 20. But the price now is only 0.2 cents a gallon more than where it was four weeks ago, on April 21.
The futures price for ultra low sulfur diesel (ULSD) on the CME...