Average national fuel prices could drop to $2.50 per gallon by Dec. 25, AAA said Monday.

Since the peak price of oil in April at $3.70 per gallon, there’s already been over a $1 per gallon drop. Today, the national average is $2.67, according to the AAA’s Daily Fuel Gauge Report.

That’s the lowest price for oil since Feb. 23, 2010. The report also suggests that the average could dip below 2009 levels in the next few days.

Since just last week, the price of a gallon of gas is down nationally by an average of a nickel, according to AAA.

In New York, gas prices average $3.08 and $2.98 in California, according to AAA. In Florida, drivers pay an average of $2.70 and only $2.44 in Texas and Mississippi.

Prices at the pump are dropping because of a sharp decline in oil prices, in part because of increased production in the United States. Last month, the Organization of Petroleum Exporting Countries’ (OPEC) decided to maintain current production levels despite calls by some member countries to drop it.

For an in-depth explainer on why oil prices have dropped so precipitously over the last few months, check out this recent Fortune article.