Beyond the Thunder stake and the minority interests in the AEP spin - off companies , the identities of many of the other assets are not publicly known .
The probate court granted the estate a waiver on inventorying and valuing them .
Beyond the Thunder stake and the minority interests in the AEP spin - off companies , the identities of many of the other assets are not publicly known because the probate court granted the estate a waiver on inventorying and valuing them .