The average price of regular unleaded gas dipped back below $3 in Iowa this week, according to the latest fuel report from AAA and the Iowa Department of Agriculture and Land Stewardship.

Average gas prices fell four cents to $2.99 in Iowa. They fell three cents nationally to $3.17.

Retail diesel prices also dropped on average, decreasing by three cents both in Iowa and nationally. Prices settled at $3.57 on average in the Hawkeye state and $3.69 nationally.

Crude oil prices continued to fluctuate this week. Brent crude oil dropped by 37-cents and is currently priced at $67.40, while West Texas Intermediate crude oil prices increased by 66-cents per barrel to $65.67.