Sell mineral rights in Illinois

Where Illinois mineral rights buyers are most active

White County is the center of the Illinois oil patch. It produced 2,100,336 barrels in 2025, more than the next four counties combined, out of a state total of 6,774,035 barrels from 43 counties (Illinois Petroleum Resources Board, 2025). Marion (676,772 barrels), Crawford (547,275), Wabash (351,965), Fayette (293,821), Franklin (288,257), Clay (244,337), Wayne (231,247) and Lawrence (226,235) round out the top counties in the same report. Illinois mineral rights in those counties draw the most offers because that is where the wells are.

Statewide output has settled just under 7 million barrels a year from 2022 through 2024, the lowest level since the mid-1930s, down from a 1940 peak of almost 150 million barrels (EIA, 2025). Production dropped again in 2025, by 438,162 barrels (Illinois Petroleum Resources Board, 2025). Mineral rights buyers know these numbers. Their offers assume slow decline, with upside only where an operator is waterflooding or drilling new wells in an old field.

What buyers check before an Illinois mineral rights offer

Mineral rights buyers look up your wells with the Illinois Department of Natural Resources. Its Office of Oil and Gas Resource Management permits wells, runs the underground injection control program and plugs abandoned wells, with a main office in Springfield and district offices in Centralia and Mount Carmel. Permit records, well logs and plugging history come from that office, and buyers map your wells against them.

For producing Illinois mineral rights, the first question is the operator. A small operator with old leases and injection wells to maintain carries more risk than a larger company, so buyers discount accordingly. The second question is your decimal interest and whether the lease is held by production. For non-producing acreage, buyers look at distance to active fields and whether any lease is in force. Non-producing Illinois mineral rights far from a field get few offers, and that is honest pricing rather than a low-ball.

Illinois mineral rights records and the Severed Mineral Interest Act

Deeds, mineral deeds and oil and gas leases are recorded with the county recorder in the county where the land lies, who records every instrument entitled to recording in the order it is received (55 ILCS 5/3-5010). Your chain of title to Illinois mineral rights runs through that office, and a buyer's title check starts there.

Illinois does not have a dormant mineral act in the Indiana or Michigan sense, where an unused interest lapses after 20 years. Its Severed Mineral Interest Act (765 ILCS 515) deals with owners who cannot be found. If a severed mineral interest is held by an unknown or missing owner, the circuit court of the county where the minerals lie can declare a trust, appoint a trustee for the missing owners and authorize that trustee to lease the minerals on court-approved terms. An unknown or missing owner is one whose identity or location cannot be found from county records or by diligent inquiry.

The practical lesson for owners of Illinois mineral rights is to keep your name and current address in the county records. If you inherited an interest and the records still show a grandparent, record the probate or affidavit of heirship so operators and buyers can find you. An oil and gas attorney can do this quickly, and it also keeps royalty checks from going unclaimed.

Selling Illinois mineral rights: taxes, leases and closing

Illinois has a flat individual income tax of 4.95 percent of net income (Illinois Department of Revenue), so the gain on a sale is taxed by the state as well as federally. Ask a tax professional whether your basis in inherited mineral rights reduces that gain. Illinois's hydraulic fracturing tax applies only to oil and gas from wells permitted under the Hydraulic Fracturing Regulatory Act, at 3 percent for the first 24 months and up to 6 percent after that (35 ILCS 450), so it does not touch royalties from conventional stripper wells.

To sell mineral rights in Illinois, have your recorded deed or probate record, any lease, and recent royalty statements ready. Buyers verify the well names and your decimal interest against those statements. Closing is a mineral deed recorded with the county recorder, payment, and a transfer order so the operator pays the new owner. Get several written mineral rights offers and compare them to a year of royalty income before you decide.

How to get offers for Illinois mineral rights

Tell us your county and what you own. We send your request to up to 3 buyers who purchase in that part of Illinois. They review the public records and contact you with offers, and you choose whether to sell, sell part, or keep.

Last reviewed October 13, 2026. This page is general information, not legal or tax advice. Facts come from the official sources listed above; confirm anything that matters to your sale with a qualified professional.