The second week of the year saw an increase in fuel prices for Iowa. As of Wednesday, the price of regular unleaded gasoline averaged $2.91 a gallon across Iowa according to AAA. Prices rose 15 cents from last week’s price and are up 12 cents from a year ago. The national average on Wednesday was $3.07, up 3 cents from last week’s price. Retail diesel prices in Iowa rose 6 cents this week with a statewide average of $3.34 a gallon. One year ago, diesel prices averaged $3.60 in Iowa. The current Iowa diesel price is 20 cents lower than the national average of $3.54. Propane prices averaged $1.58 per gallon in Iowa, and home heating oil prices had a statewide average of $2.88 per gallon. Tips for saving energy on the road or at home are available at energy.gov and fueleconomy.gov.