Motorists Are Enjoying Some Of The Lowest Gas Prices Of The Year. AAA Says The Average Price Of Gas This Week Across Tennessee Is $2.05, With Prices In Johnson City Averaging $2.03. In Virginia, Motorists Are Paying On Average $2.07 A Gallon. One Of The Main Factors Affecting The Lower Gas Prices Is That Crude Oil Hit An 8-Month Low Last Week.