A new survey finds just a penny-per-gallon drop in the price of gasoline in Iowa this week. 

The survey checked fuel prices on Tuesday. The average price for a gallon of regular unleaded gas in Iowa was $3.43 on Tuesday. That is a penny less than it was a week ago. The national price of gasoline fell three-cents per gallon in the past week.

The average price for diesel in Iowa is $3.80, which is six-cents below the national average.

According to information released by the Iowa Department of Agriculture, heating fuel prices held steady in the past week. Propane is selling for an average of $1.91 per gallon. Home heating oil is selling for $3.50 a gallon.  Natural gas prices were up just slightly from last week.