Live in Texas, and have mineral rights in Oklahoma, and possibly Texas

Not necessarily in any order -

  1. You will have to probate your grandfather’s estate (and possibly your mother or father) in Oklahoma to get clear title to the minerals.

  2. You might be able to find references, depending on the age of the documents, in okcountyrecords.com. This covers numerous sections and lists leases, deeds, etc.

  3. You should check the unclaimed property fund in Oklahoma and Texas to see if your grandfather’s name is listed. If so, then there is probably production on one or more of the tracts. You should also check the state where your grandfather was a resident of at the time of his life.

  4. You should check the mineral owner escrow account on the OCC website. That would show whether your grandfather was pooled in a unit.