The website is https://claimittexas.org/
When I entered the name of a relative who passed away over 25 years ago, the site showed me 3 unclaimed life insurance policies totaling over $750! This money is payable to his heirs, upon proof that it is due to them.
Unfortunately, the amount of documentation needed is fairly extensive. I’m hoping that directly contacting the insurance companies will be simpler than going through the State.
However it plays out, it will be “mailbox money” to the rightful heir(s).