The average price of a gallon of regular unleaded increased 1 cent to $2.47 in the past week as prices have shown some volatility depending on the region, reports AAA.

While drivers in 25 states are paying more than a week ago, drivers in 17 other states are paying less. Drivers in nine states are paying the same.

The sharpest increases came in Great Lakes and Central states, where prices increased 6 cents in Missouri and 12 cents in Ohio. Indiana and Illinois saw an increase of 8 cents and 7 cents respectively.

"Depending on where in the country you are filling up your tank, gasoline prices are playing tricks on some motorists with large increases on the week and treating others to lower gas prices," said Jeanette Casselano, AAA's spokesperson. "The price volatility can be attributed to a new trend that has emerged during October in the last few years, which is an unexpectedly steady demand for gasoline after the end of the summer driving season."

States with the biggest price fluctuation include Georgia (down 27 cents), Florida (down 23 cents), Alabama (down 22 cents), Tennessee (down 22 cents), South Carolina (down 21 cents), Mississippi (down 20 cents), North Carolina (down 20 cents), Texas (down 19 cents), Indiana (up 16 cents) and Virginia (down 14 cents), according to AAA.

States with the lowest-priced gasoline include Mississippi ($2.19), Alabama ($2.19), South Carolina ($2.21), Louisiana ($2.22), Arkansas ($2.22), Texas ($2.23), Tennessee ($2.25), Virginia ($2.26), Missouri ($2.26) and Oklahoma ($2.30).

Meanwhile, the average price of diesel increased 2.2 cents to $2.819, which is 34 cents higher than a year ago, according to the U.S. Energy Information Administration.