Just go to The National Assosication of Unclaimed Property Administrators website , click on your state (make sure you do it for all the states you've lived in!), and search for any names you've had (ie, married chicks, check your maiden names too!). Frugal Mister had an overpayment of $72 to an insurance company he used many years back and we got that money back!! It was always our money to begin with, but why leave it in limbo when you can have it to pay some debts you may have accrued?
You're Welcome ;)