They've fallen to the lowest level since May of 2009 at an average of $2.30 a gallon. That's according to Triple-A. A spokesman for the auto group says prices have fallen 92 straight days -- which has never happened before.
Missouri is the first state since 2009 to see an average of under $2.00 per gallon at $1.98.
To track the Daily Fuel Gauge Report by AAA, click here.