Average U.S. Gas Prices Dip Below $2.00 For First Time Since 2009 By: Benzinga via Benzinga December 21, 2015 at 07:34 AM EST According to Gas Buddy, the national average selling price of gas at the pumps dipped below $2 a gallon. The last time the ... Read More >> Related Stocks: SPDR S&P 500 ETF Trust United States Oil Fund