(Springfield, IL) — Gas prices are starting off the month of December just a tad lower than the start of last month. The Triple-A Daily Fuel Gauge Report shows the average price for a gallon of regular unleaded gas in Springfield is two-oh-one this morning. That’s about two-cents less than what it was to begin the month of November. Today’s average is also about 14-cents less than the national average of two-15.