The average diesel price in the U.S. decreased three cents to $2.22 per gallon for the week of February 9, according the Energy Information Administration (EIA). This puts prices at their lowest level since May 2005, when they averaged $2.16.

Although diesel prices continue to fall, the price of crude oil has been rising, climbing above $41 a barrel as investors hope that the proposed U.S. stimulus package will counter falling crude demand, the Associated Press has reported.

The most expensive area for diesel fuel continues to be New England, where it averaged $2.58 per gallon. The least expensive area is the Gulf Coast region, where it averaged $2.16 per gallon.