The price of gasoline nationwide keeps dropping.

Industry analyst Trilby Lundberg said Sunday that the average price of regular gas fell 4 cents in the past two weeks, to $2.06 per gallon. That’s the lowest price since April 2009.

Lundberg says the drop is due to another nosedive in the cost of crude oil and that prices may continue to fall.

For other types of gas, the average cost of midgrade is $2.35 per gallon. Premium averages $2.55.

In California, where prices are highest, a gallon of regular averages $2.61, with midgrade costing $2.74 and premium at $2.83.

In the Lower 48 states, the highest average price of regular gasoline is in Los Angeles, at $2.71, while Tulsa, Oklahoma has the lowest, at $1.72.

(AP)