Gas prices increased more than 30 cents a gallon in some places Tuesday.
Some think the prices are a sign the economy is improving.
Experts at the University of Kentucky College of Business and Economics say the higher the gas prices, often that means more demand for crude oil, and other services.
But some drivers are worried that higher gas prices will cause them to cut back on their summer travel plans this summer.
Prices jumped more than 25 cents at many stations around Lexington. Most are now selling a gallon of regular unleaded for $2.25.
Nationally, prices are an average of $2.09 and one year ago, the average price was $3.60.