Thank you for your reply! The deceased was not probated. Both my Sisters had trusts and lived in Oregon. No need for probate since there was a will or a trust.
We were told then, (2017) that they needed an Affidavit of Heirship, filled out, signed and notorized. Filed with Caddo County. This was done. There was never a well drilled, to our knowledge, and the lease expired.
Our mineral rights are so small, it hardly justifies going thru the process and expense of probate! There has to be an easier way when your dealing with 2 acres!