The average price of a gallon of diesel jumped nearly a nickel as crude oil prices hit a new two-year high.
The current average price of $3.116 per gallon is at the highest level since May 10, 2010, according to the weekly diesel price report from the Department of Energy Monday.

The weekly diesel price report from the DOE's Energy Information Administration showed an average nationwide retail price of $3.116 a gallon, up 4.9 cents from the previous week. That's also 31.5 cents higher than it was a year ago.

The highest prices were seen in the West Coast region, where they rose 3.1 cents to $3.273 per gallon. The Central Atlantic region was also over $3.20 per gallon at $3.225. The lowest prices were reported in the Gulf Coast region at $3.03. Every region saw the price of diesel increase, with the largest jump in the Rocky Mountains region (5.8 cents).

The EIA also reported today that the price of regular grade gasoline now stands at $2.865 per gallon, up 5.9 cents from last week. The price of gasoline is 7.5 percent or 19.9 cents more expensive than a year ago. Diesel costs 25.1 cents more than gasoline.

Meanwhile, the price of crude oil was up Monday for the sixth day in a row to a two-year high. Crude oil for December delivery was up 21 cents on the New York Mercantile Exchange Monday, closing the day at $87.06 a barrel -- the highest it's been since Oct. 8, 2008.