They showed that average petrol pump prices in the UK have fallen back to 130.0p a litre having risen to 131.7p a litre at the beginning of July.
Motorists are now doing far better than they were a year ago when petrol averaged 137.5p a litre, rising to 138.38p a litre in mid-October.
The AA said average diesel prices were now down to 134.4p a litre after rising to 136.37p in early July 2014.
A year ago, pump diesel hit 141.74p a litre, on its way to a mid-September peak of 142.88p. Record prices remain 142.48p a litre for petrol, set in April 2012, and 147.93p for diesel in the same month.
AA president Edmund King said: "Crises in Iraq and the Ukraine helped to send oil prices to $115 a barrel in June, although a strong pound softened the impact for the UK driver.
"Since then, oil is now down around 10 dollars a barrel - partly because Libyan supplies grew again. However, consumer confidence has yet to recover."