How much have Tennessee gas prices risen amid war in Iran?

Gas prices on March 5 have gone up 27 cents in both the U.S., and in Tennessee compared to one week ago, which likely relates to the war in Iran, according to AAA – The Auto Club Group.

The national average for a gallon of regular unleaded gasoline is $3.25. Tennessee’s average on March 5 is $2.84, according to AAA.

The last time the national average made a similar weekly jump was back in March of 2022 during the start of the Russia/Ukraine conflict, AAA said.

“Oil prices are rising largely due to growing instability in a region that is essential to global energy markets,” AAA spokesperson Megan Cooper said. “Although the U.S. does not import oil from Iran, the country remains a major producer, supplying nations such as China and India. Any potential disruption to Iranian oil infrastructure can influence global supply expectations.”

Middle Tennessee county averages include:

• Davidson County: $2.90
• Williamson County: $3.12
• Rutherford County: $2.87
• Wilson County: $2.88
• Sumner County: $2.89
• Robertson County: $2.90
• Cheatham County: $2.92
• Maury County: $2.85.

Crude oil pricing correlates to about 60% of what consumers pay at the pump, Cooper said. Recent global tensions tied to the conflict with Iran are adding upward pressure on crude oil prices, according to AAA. 

Also, the Strait of Hormuz is a critical connection for the Persian Gulf to open waters as a shipping lane for crude oil. Because oil is traded globally, a shortfall in one region can impact prices throughout the world.

Tennessee and the southeast portion of the U.S. consistently rank among the least expensive markets for fuel. Proximity to refineries and pipeline infrastructure are major reasons for less expensive gas, according to AAA.

Tennessee is currently the fourth least expensive market in the U.S. for gas. The last time Tennessee’s average was over $3 per gallon for regular unleaded gas was August 2024.

Refineries are also starting the process of producing summer-blend gasoline. which contains additives to help reduce evaporation during warmer months and adds to the cost. Gas demand generally increases with the spring break season and the expectation of more road trips.

Disclaimer: This story was created by reporter Andy Humbles at ahumbles@tennessean.com, with the assistance of Artificial Intelligence (AI). Journalists were involved in every step of information gathering, review, editing and publishing.

Learn more.