The national average price for on-highway diesel increased 2 cents from $2.829 per gallon to $2.849 for the week ending Monday, July 9, 2007.
Within that price, ultra-low sulfur diesel increased 1.7 cents to $2.859 per gallon, according to the U.S. Energy Information Administration, while remaining supplies of low-sulfur diesel climbed 3 cents to $2.809.
ULSD is now averaging $3.090 per gallon on California, the highest average regional price by nearly a dime.
ULSD is approaching the $3 mark in several other regions, including in the West Coast region where ULSD averaged $2.996, 1.4 cents per gallon higher than the previous week.
The Rocky Mountain region had an average ULSD price of $2.962, up 2 cents.
The largest average increase occurred in the Lower Atlantic region, where ULSD jumped 2.9 cents from $2.786 to average $2.815.
ULSD in the East Coast region jumped an average of 2.5 cents from $2.841 to $2.866.
The cheapest average was still found in the Gulf Coast region, where ULSD averaged $2.787, up 1.7 cents from $2.770.
ULSD in the Midwest region averaged $2.832, up 1.3 cents from $2.819 per gallon.
The Central Atlantic region had an average of $2.933 for ULSD, up 1.9 cents from $2.914, while ULSD in the New England region averaged $2.941, up 1.2 cents per gallon.
The national average for all on-highway diesel during the reporting period was 6.9 cents cheaper than the same week last year.