The national average price for a gallon of diesel climbed 10.1 cents to $4.545 a gallon after a recent downswing, according to Energy Information Administration data released Oct. 23.

The price of diesel fell in all 10 regions EIA surveys, ranging from a high of 11.4 cents in the Midwest to a low of 3.9 cents in California, where the price of a gallon costs $6.11.

Midwest -- $4.11 Rocky Mountain -- $4.13 ProMiles’ diesel averages during this most recent week also showed significant increases in numbers -- with prices rising by 19 cents to $4.04 per gallon.

Despite the recent surge, average California diesel prices are still 35 cents a gallon lower than they were at the same time last year — and they’re a far cry from the record price of $7.01 a ...