The retail cost for both diesel and gasoline spiked again this week across the U.S., with the Energy Information Administration (EIA) reporting pump price increases for both fuels in every region of the country.

The EIA said the average U.S. retail price for diesel increased 8.2 cents this week to $4.104 per gallon, which is 16.1 cents per gallon higher compared to the same week in 2012.

California ($4.331 per gallon), New England ($4.226) and the Central Atlantic region ($4.216) were home to the highest average diesel prices in the country, according to the agency’s figures, with pump prices only along the Gulf Coast ($3.993) and Rocky Mountain region ($3.964) remaining under the $4 per gallon mark.

Gasoline prices shot up 7.3 cents this week to a U.S. average retail price of $3.611 per gallon, which is 8.8 cents per gallon higher compared to the same week in 2012, EIA noted.

The Rocky Mountain region and West Coast witnessed the highest one-week fuel prices spike 00 13 cents and 12.9 cents per gallon, respectively – with the highest average retail pump prices found in West Coast ($3.867 per gallon), New England ($3.736) and the Central Atlantic area ($3.73), the agency reported.