Succession of my great grandfather who died intestate, ?'s about remainder interest

Original%20Lease%20Assignment%20from%20Roy%20Lee%2C%20Trustee%20to%20Hunt%20Oil%20Company%20009.jpgOriginal%20Lease%20Assignment%20from%20Roy%20Lee%2C%20Trustee%20to%20Hunt%20Oil%20Company%20008.jpgOriginal%20Lease%20Assignment%20from%20Roy%20Lee%2C%20Trustee%20to%20Hunt%20Oil%20Company%20007.jpgOriginal%20Lease%20Assignment%20from%20Roy%20Lee%2C%20Trustee%20to%20Hunt%20Oil%20Company%20006.jpgOriginal%20Lease%20Assignment%20from%20Roy%20Lee%2C%20Trustee%20to%20Hunt%20Oil%20Company%20005.jpgOriginal%20Lease%20Assignment%20from%20Roy%20Lee%2C%20Trustee%20to%20Hunt%20Oil%20Company%20004.jpgJust trying to understand how to get remainder interest on the leases I've attached. I have the copies of the original leases and lease assignments.

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