The average price of gasoline has dropped a penny over the past three weeks, to $2.05 a gallon.

Industry analyst Trilby Lundberg said Sunday that with the slight decline the price remains the lowest since 2009.

Lundberg says prices may continue to go down as crude oil costs drop and refineries run at a high rate.

The current gas price is 15 cents per gallon under its year-ago point.

In the Lower 48 states, the highest average price of regular gasoline was $3.01 per gallon in Los Angeles. The lowest was $1.64 in St. Louis.

The U.S. average diesel price is $2.31 per gallon, down about 8 cents from 3 weeks ago.

(AP)