We saw a big spike in gas prices in the past few days.
Knoxville's average is up 7 cents to $3.64 a gallon of regular.
Nationwide, prices rose 5 cents.
The jump comes after Hurricane Isaac forced several Gulf Coast oil refineries to close or cut production.
AAA's Don Lindsey was on 10News at 5 to explain why; watch the video above for his answers.