Curative
The work of fixing title defects — missing heirs, breaks in the chain, unreleased liens — so the minerals carry marketable, payable title.
Curative is the work of clearing the defects and gaps a title examiner finds so that ownership is clean enough to pay on or sell. A title opinion typically ends with a list of curative requirements the operator or buyer wants satisfied before money moves.
Common curative items include a missing heir or an estate that never went through probate, a break in the chain of title, an unreleased mortgage or oil and gas lease, a misdescription, or a name discrepancy. The fixes are practical paperwork: recording an affidavit of heirship, obtaining a quitclaim deed, getting a lien released, or filing a correction instrument.
For heirs this is often why royalty checks sit in a suspense account: the operator can't pay until curative clears and title is marketable. This is general information, not legal advice.