Escheated TX assets - missing division order

Hello, first-time poster.. Hoping for some help. I’ve been working on this for about a year, and it’s just getting circular.

My great-uncle has some mineral rights on a property in Reagan Co., TX, that had production after he passed away that’s been escheated to the state, primarily from North American Royalties and Pioneer Natural Resources (both no longer in existence). I’ve supplied the original deed, the current deed (in the name of the estate), all of my information as admin, etc., etc., to the state of TX, and I’m getting correspondence back asking for lease information, division orders, specific well numbers, etc., which is almost impossible to provide specifically without the DO. I have what I believe is the correct RRC lease number, lease name, etc., but unfortunately none of that ties the property to my family, it’s all Operator related. The county clerk does not have any DO’s, but has the records of all the leases of the property, which do align with the escheated funds. The original lease was in place before he purchased it, and continued with various operators, all of which must have named him as a payee (with monies going to the state) in their own DO’s. I paid the title office $650 to provide a “Run Report” which ends up just being an Excel file of little value to me (I don’t recommend doing this BTW). His name only shows up twice: when he purchased it, and when the deed was updated to his estate’s name (by me). However, and again, there must have been DO’s created naming him as an owner and payable, but since he was already deceased, he couldn’t sign them or get into pay status. Any advice on how to navigate this or get the TX Comptroller to work with me? Does anyone know where the records from North American went after their bankruptcy? Thanks!