The average price for a gallon of diesel jumped 3.1 cents during the week ending July 2, according to the Energy Information Administration. Although this didn’t quite erase the 4.8-cent drop in the prior week, it marked a 55-cent premium compared with the same week last year.

The largest price spike was in the Midwest region, where prices rose 6.8 cents to $2.887. Not all regions posted an increase—in California prices fell the most (2.1 cents) to $3.119. The California region still had the highest prices nationally however. The cheapest diesel could be found in the Lower Atlantic region at $2.834, despite a 1.8-cent increase.

For more detailed diesel price information, go to www.fleetowner.com/diesel.xls