Antrim Shale wells are shallow, old, and quiet compared to the shale plays that make headlines, which is exactly why a lot of Michigan families still don't know what their royalty is worth.
The Antrim isn't a basin most people outside Michigan have heard of, and that's fine, because it was never built to be a boom play. It's a biogenic gas shale sitting a few thousand feet down across the northern Lower Peninsula, developed mostly through the 1990s in counties like Otsego, Antrim, and Montmorency. Wells were shallow and cheap to drill compared to the deep shale plays you hear about now, and a lot of them are still producing a small, steady gas check thirty years later.
We hear from Antrim owners in two situations most often: someone who inherited a handful of well interests from a parent or grandparent who leased land up north, or a farm family who leased their own acreage decades back and has just kept cashing modest checks ever since. Neither situation is complicated to evaluate, but both deserve a straight answer about what a well that old is realistically worth today.
Most shale gas is thermogenic, cooked out of organic material by heat and pressure over millions of years. The Antrim is different: much of its gas is biogenic, produced by microbes breaking down organic shale at relatively shallow depths and cooler temperatures. That's part of why Antrim wells didn't need the massive hydraulic fracturing jobs of a Marcellus or Haynesville well to produce, and why development happened earlier and cheaper.
It also means Antrim wells behave differently on the decline curve. Instead of a sharp first-year drop-off, a lot of Antrim wells settled into a long, low, flat production tail. That's good news if you're the one collecting the check every month for thirty years, but it also means the remaining value in a mature Antrim well is genuinely modest by the time most current owners are deciding what to do with it.
Antrim wells produce a lot of water alongside the gas, more than most shale plays, and that water has to be gathered, treated, and disposed of. If you look closely at your check stub, you may see charges tied to water handling in addition to the usual gathering and compression deductions. That's normal for this play and not a sign something's wrong with your interest, but it does eat into the net you actually see.
Because gas prices and water handling costs both move independently, an Antrim check can shrink even when a well's raw gas volume barely changes. We factor that into how we look at your production history rather than judging the interest off a single month's number.
A lot of Antrim minerals were leased in relatively small farm and forest parcels, then divided further across generations of heirs. It's common for us to see interests measured in thousandths of an acre-equivalent, tied to a well that was drilled in 1994 and hasn't been touched since. Individually these interests are small; collected across a family of siblings and cousins, they're often more trouble to keep tracking through probate paperwork than the checks are worth to any one person.
If your Antrim interest came to you through an estate you're still settling, or if you're one of several heirs who'd rather split a lump sum than keep filing small 1099s every January, that's the exact situation where selling tends to make the most practical sense.
New Antrim drilling has been minimal for years; most current production comes from wells drilled in the 1990s and early 2000s. This is a mature, low-decline play rather than an active development area.
Antrim wells decline slowly, so volume alone rarely explains a big drop. Look at your gas price line and any water handling or gathering deduction increases; those usually explain more of the swing than the well itself.
Often yes, mainly for convenience. Small fractional interests split across heirs generate disproportionate paperwork relative to their income, and a lump sum split five ways can be easier to manage than five small 1099s a year for decades.
Yes, mineral interests are real property and go through the same probate process as land. If the interest wasn't formally transferred when a previous owner passed, that gap needs to be cleared before a sale can close, and we help identify what's needed.
Otsego, Antrim, and Montmorency counties, along with the surrounding northern Lower Peninsula counties, carry most of the historical Antrim well density.
The same tract, deed chain, lease, division order, payor account, wells, and deductions carry into each of these reviews.
Own Permian Basin mineral rights anywhere in West Texas or southeast New Mexico? We buy family royalty interests across the whole basin, no pressure.
Own Midland Basin minerals in Midland, Martin, Howard, or Glasscock County? We buy Permian royalty interests, multi-bench and all, no pressure.
Own Delaware Basin minerals in West Texas or southeast New Mexico? We buy stacked-pay Permian royalty interests, deductions and all, no pressure.
Share the county and state, owner name, operator or payor, recent statement, deed or lease if available, and the question behind the inquiry.
