Sell Mineral Rights in Michigan

By the time most families call us about Michigan minerals, the Antrim shale wells behind them have already told the whole story in the checks.

The Antrim shale play in the northern Lower Peninsula, centered on Otsego, Antrim, Montmorency, and surrounding counties, had its real boom in the late 1980s through the 1990s, when it was one of the first shale gas plays developed at scale anywhere in the country, years before the Marcellus or Eagle Ford made shale a household word. That head start also means it's further along in its decline than most shale plays people hear about today. If you inherited an Antrim interest from a parent or grandparent who leased land in the boom years, the well behind your royalty check is very likely thirty-plus years old at this point.

Antrim wells produce from shallow, fractured shale and coalbed methane-like formations, and like coalbed methane elsewhere, they tend to have long, gradually declining production tails rather than the front-loaded, steep-drop curves of modern horizontal shale wells. That's actually useful context for evaluating one: a well that's been slowly declining for three decades is about as knowable as production gets, even if the number itself keeps getting smaller.

Why so few Antrim wells are new

Nearly all meaningful Antrim development happened between the late 1980s and the mid-2000s. Since then, drilling has slowed to a trickle, partly because the most productive acreage was drilled early, and partly because natural gas economics haven't favored redeveloping a mature, shallow play when operators have more attractive options in newer basins. If you haven't heard from a landman in years, that tracks with how quiet the play has become statewide.

That means an Antrim interest's value today is almost entirely about what's left in existing production, not speculative future drilling. There's little realistic case for a wave of new wells reviving the play, which makes the evaluation more about honest decline-curve math than optimism about what might happen next.

Reading a thirty-year decline curve

If your royalty check today is a fraction of what it was even ten years ago, that's consistent with where most Antrim wells are in their life cycle at this point, not a sign that something's wrong. The long, slow tail typical of these wells means many are still producing something, just much less than they once did, and that trajectory is fairly predictable to project forward from a solid stretch of statement history.

For families who've held the interest since the original 1980s or 1990s lease, there's sometimes an emotional pull to keep it going simply because it's been in the family that long. That's a legitimate reason to hold onto something. It's just worth separating from the financial question of whether continuing to collect a small, shrinking check outweighs a lump sum today, especially once the interest is split among several heirs.

Fractional ownership after three decades of inheritance

A lease signed in 1988 by a single landowner has often, by now, passed through one or two rounds of inheritance, meaning today's mineral interest might be split among five or six grandchildren each holding a small fraction. Individually, those fractional shares of an already-declining check can amount to very little in any given month, which is exactly the situation where consolidating into a single sale, rather than each heir separately managing a tiny recurring payment, makes practical sense.

If that's your family's situation, it's worth having a conversation with the other heirs before pursuing a sale, since buyers typically need agreement, or at least clarity, from all owners of record on a given tract.

What to gather first

Your most recent division order and however many years of royalty statements you can find are the most useful starting point, since a longer history makes it much easier to project where an Antrim well realistically is on its decline curve. If you know which county the original lease was in, that alone helps confirm you're looking at Antrim production specifically rather than a different, smaller Michigan play.

If the interest is shared among several heirs, having a rough sense of who else holds a piece of it, even informally, saves time once you're ready to move forward.