Average gas prices dropped last week in Iowa, according to the latest fuel report from AAA and the Iowa Department of Agriculture and Land Stewardship.

The average cost of unleaded gas fell three cents in Iowa to $3.03 per gallon, while the national average increased by four cents to $3.23.

Average retail diesel costs rose by 12 cents per gallon to $3.60 this week. The national average also increased by 12 cents, settling at $3.72 per gallon.

Crude oil prices dropped this week, with West Texas Intermediate falling by $8.77 per barrel this week, while Brent crude prices dropped by $7.49. Both settled at $67.77 per barrel.