The department's energy information administration announced an average price of $1.405 yesterday, down 2.2 cents from the previous week and down 6.4 cents since October 21. The price is the lowest since September 9, when it was $1.396.
The price may fall further in the near future. Crude oil fell below $25 a barrel last week after Iraq accepted a United Nations resolution that gives inspectors unfettered access to suspected weapons sites.
California still has the highest price at $1.524, while the West Coast fell to an even $1.50. The lowest prices are in the Gulf Coast ($1.346) and Lower Atlantic ($1.347) regions.