How mineral rights pass under Illinois probate law. Step-by-step transfer process, affidavits of heirship, and state-specific considerations for inherited Illinois minerals.
Get Your Free Mineral ValuationTL;DR How mineral rights pass under Illinois probate law. Step-by-step transfer, affidavits of heirship, and state-specific considerations for inherited Illinois minerals.
Illinois treats mineral rights as real property. When the owner of an Illinois mineral interest dies, the interest passes to heirs through the same probate process that governs real estate — either by will (testate) or by intestate succession under Illinois law.
1. Locate the original mineral deed. The deed shows the legal description, county, and ownership chain.
2. Complete probate or trust administration. Probate is filed in the deceased's county of residence; ancillary probate may be needed in the Illinois county where the minerals are located.
3. Record the new ownership at the county recorder. Whether by probate order or affidavit, ownership must be reflected in the public record.
4. Notify the operator. Operators redirect royalty checks once division orders are updated.
Inherited Illinois mineral interests typically receive a stepped-up cost basis to fair market value at the date of death. This significantly reduces capital gains tax on a subsequent sale because the heir's basis is the date-of-death value, not the original acquisition cost.
Affidavit of heirship may suffice for smaller estates — see Illinois affidavit of heirship guide.
Multiple heirs typically own undivided fractional interests; each must sign for any sale.
CCS-eligible acreage may require additional review for pore space and 45Q considerations — see pore space rights guide.