According to USA Today, nearly 1 in 5 U.S. fuel stations are charging less than $2 per gallon of gasoline as falling oil prices deliver holiday savings for American motorists.

As many as eight states could have an average price of less than $2 by the end of the week, said Patrick DeHaan, senior petroleum analyst for GasBuddy.

Missouri's already there with an average of $1.96 on Tuesday, according to AAA.  Others within cents of the two dollar threshold:  Texas, Oklahoma, Arkansas, Mississippi, Alabama, Louisiana and South Carolina.

As of late Monday morning, 31 states had at least one station with fuel for less than $2, according to GasBuddy.

The highest ever national average was $4.11 on July 17, 2008.  For more information, please click on the above link.