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Diesel Fuel Statistics and Data


photo image of old gasoline pump with prices behind it from iStockphoto iStock_000004626121XSmall

October 05, 2015 - Still on that downward slide for a seventh week. Regular is again lower than last week's price by several cents.

The average price in California for regular gasoline decreased 4.5-cents from the previous week. The average statewide price for regular was $2.949. Mid-grade and premium prices decreased as well.

The national average for self-serve regular is at $2.318, down 0.4 of a cent from the previous week.This is 63.1 cents lower than the price of regular in California.

California Retail Gasoline
Prices Per Gallon
  California Retail Diesel
Prices Per Gallon
  9/28/2015 10/5/2015   9/30/2015 10/7/2015
Regular $2.994 $2.949 Northern
$2.731 $2.772
Mid-Grade $3.114 $3.065 Central
$2.686 $2.696
Premium $3.228 $3.183 Southern
$2.653 $2.697


Diesel fuel is the second largest transportation fuel in California behind gasoline. In 2007, more than three billlion gallons of diesel were sold, according to the state Board of Equalization.

According to the U.S. Department of Energy's Energy Information Administraiton, "Nearly all semi-trucks, delivery vehicles, buses, trains, ships, boats and barges, farm, construction and military vehicles and equipment have diesel engines. In 2006, diesel fuel accounted for about 16% of total refined petroleum products and 77% of the total distillate consumed in the U.S. On-highway motor vehicles use about 75% of total diesel fuel, with the rest consumed by "off-highway" construction, farming equipment, military and railroad vehicles and equipment, and marine craft." (Source: EIA Petroleum Navigator: Product Supplied)