The price of a gallon of regular gas has tumbled by double-digits in St. Louis this week.
According to GasBuddy.com, the average gallon has fallen nearly 17 cents in the past week, averaging $2.94 a gallon on Sunday.
GasBuddy.com conducts daily surveys of nearly one-thousand gas outlets in St. Louis.
The national average has fallen about 6 cents per gallon in the last week to $3.30 per gallon of regular.
The price per gallon in St. Louis is about 20 cents lower than the same day one year ago and about 23 cents lower than one month ago.