As of Wednesday, the price of regular unleaded gasoline averaged $2.97 across Iowa according to AAA. Prices rose 2 cents from last week’s price and are up 13 cents from a year ago. The national average on Wednesday was $3.13, up 1 cent from last week’s price. Retail diesel prices in Iowa rose 5 cents this week with a statewide average of $3.47. One year ago, diesel prices averaged $3.53 in Iowa. The current Iowa diesel price is 20 cents lower than the national average of $3.67. Propane prices averaged $1.68 per gallon in Iowa. Home heating oil prices had a statewide average of $3.03 per gallon. Tips for saving energy on the road or at home are available at energy.gov and fueleconomy.gov.