Tennessee Gas Prices Have Fallen By One Cent Over The Past Week, Averaging $2.73 Per Gallon—The Same As This Time Last Year But 10 Cents Higher Than Last Month. AAA Spokeswoman Megan Cooper Says Uncertainty In The Oil Market, Including Recent Winter Weather And U.S. Sanctions On Russian Petroleum, Could Impact Future Prices. Nationally, Gas Prices Remain Steady At $3.06 Per Gallon. Tennessee Remains The Eighth Least Expensive Gas Market In The Nation.