Dear Mr. Kisha,
When you purchase a home, the Title companies never check the mineral history of that parcel of land. Most conveyances of residential property has a subject to that looks generally like this, “this conveyance is subject to all reservations, exceptions and easements of record.”
In a conveyance like that described above, if there are any minerals left to be conveyed, then you would receive them in the transfer.
If the landman sent a offer letter, respond that you would like to see a runsheet on the mineral title and do not warant title in the lease.