The Antrim shale boom that brought thousands of wells to northern Michigan happened decades ago, and if you are still cashing a royalty check from one of them, that steady history is the main thing shaping your purchase offer.
Michigan's private mineral ownership is concentrated around the Antrim shale, a shallow, low-pressure formation across the northern Lower Peninsula that saw heavy drilling activity through the 1990s, particularly in Otsego, Antrim, and surrounding counties. Unlike newer shale plays with steep initial declines, Antrim wells produce gas slowly from natural fractures assisted by dewatering, which means many of these wells are still paying small, consistent royalties decades after they were drilled.
Here is how that long, flat production history factors into a purchase offer, how title works for interests that have often stayed within the same family since before drilling began, and the recording and closing steps that apply in Michigan.
Because Antrim wells decline slowly rather than dropping off sharply like many horizontal shale wells do, a buyer evaluating your interest will typically look at several years of royalty check history to establish a realistic decline curve, rather than relying on initial production figures from decades ago that no longer reflect current output. If you have kept old check stubs or division order statements, that documentation is genuinely useful here.
Some Antrim wells have reached the point where production is low enough that operators evaluate whether continued operation still makes economic sense, so it is fair to ask a buyer how they are treating a specific well's remaining life when they put together an offer, since two wells drilled the same year in the same county can be at very different points in their decline.
Many Antrim-area mineral interests trace back to farmland or timberland owned by the same family since well before drilling began in the 1990s, which means a title examiner is often working from a shorter, more recent chain than in older legacy oil states, since the mineral estate was typically still combined with the surface until a lease was signed decades ago rather than severed generations earlier.
If your interest did pass through inheritance since the original lease was signed, bring probate records or a will along with any prior recorded deeds so the examiner can confirm your current ownership share without delay.
Michigan mineral deeds are recorded with the Register of Deeds in the county where the interest is located. Once the title examiner clears your chain, the buyer typically opens escrow through a title company, and the closing statement sets out the purchase price along with any prorated royalty owed for production before closing.
After closing, the deed is recorded with the county Register of Deeds, and the buyer sends a copy to the operator so the division order is updated. Given how long many Antrim wells have been producing, it is worth confirming the operator's current division order matches your understanding of your interest before you finalize a sale price, since decades of small adjustments can occasionally create a mismatch worth resolving first.
Recent royalty statements are the single most useful document you can hand a buyer evaluating an Antrim interest, since they establish exactly how much your specific well is currently paying and how that figure has trended over the last several years. If you still have the original lease from the 1990s, it is worth including as well, even though the well has long since been held by production.
If your interest passed to you through a parent or grandparent who originally signed the lease, a simple probate or heirship document confirming that transfer is usually enough for a title examiner working a mature Antrim well, since the underlying land often has a shorter, more recent chain than legacy oil states further south.
Antrim wells produce from natural fractures in a shallow formation assisted by dewatering, which typically results in a much slower, flatter decline curve than newer horizontal shale wells, so many wells drilled in the 1990s are still generating modest, steady royalty income today.
Recent royalty check stubs or division order statements covering the last several years are the most useful, since they establish an actual decline trend for your specific well rather than relying only on historical figures from when the well was first drilled.
With the Register of Deeds in the county where the mineral interest is located, which is the same office a title examiner uses to confirm the chain of ownership.
It can still have value, though a buyer's offer will reflect the remaining production expected from that specific well. Ask the buyer how they assessed the well's current decline stage as part of understanding how they arrived at their offer.
