Montana · no will
Montana follows the Uniform Probate Code — and unlike North Dakota next door, it never takes an idle mineral interest away from the family.
If a Montana relative died without a will and owned mineral rights, the interest passed at death under Montana's intestate succession provisions, which follow the Uniform Probate Code. The surviving spouse's share depends on whether all of the decedent's descendants are also the spouse's and whether the spouse has descendants from another relationship — a scheme designed for blended families that produces different answers than the older half-and-half rules used in neighbouring states. One thing worth settling before working through any of that, because the opposite is often repeated: Montana has no dormant mineral act. An unrecorded intestate interest that has sat idle for decades has not lapsed and cannot be claimed by the surface owner for non-use.
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When someone dies without a will, the state decides who inherits. Those rules are mechanical and they do not care what anyone intended — which is why mineral interests so often end up split among relatives who never knew the minerals existed. The interest still passed at the moment of death. What is usually missing is a record proving it, and that record is what an operator needs before paying and what a buyer needs before closing.
Governing statute: Mont. Code Ann. § 72-2-112
Montana applies the Uniform Probate Code pattern. Where the decedent leaves a surviving spouse and no surviving descendants or parents, the spouse takes the entire intestate estate. Where all of the decedent's surviving descendants are also descendants of the surviving spouse and the spouse has no other surviving descendants, the spouse again generally takes the whole estate. Where the spouse has descendants who are not the decedent's, or the decedent has descendants who are not the spouse's, the spouse takes a defined sum plus a fraction of the balance and the descendants take the rest. With no surviving spouse, the estate passes to descendants by representation, then to parents, then to siblings and their issue. The dollar amounts within this scheme are statutory and periodically adjusted.
The Uniform Probate Code shares are the straightforward part. The Montana-specific point runs opposite to what most families expect: there is no lapse regime here at all. Montana has not enacted a dormant mineral act, so an intestate estate that nobody administered does not put the minerals at risk of abandonment, however long the silence has run, and there is no statement of claim to file. What can genuinely cost the family the interest is property tax assessed against a severed producing interest and left unpaid — those notices go to whatever address was last on file, often one nobody has used in decades. There is a second Montana wrinkle worth catching early: parts of the northeast fall within the Fort Peck Reservation, where allotted interests are administered through the Bureau of Indian Affairs, are frequently fractionated among many heirs, and follow a distinct approval process for conveyance.
Montana probate runs through the district court in the county where the decedent lived, and because Montana has adopted the Uniform Probate Code, informal proceedings are available and are considerably cheaper than formal administration where nothing is contested. A personal representative's deed or a decree of distribution recorded in the county where the minerals sit puts the heirs into the chain of title. Where the decedent lived out of state and the Montana minerals were never addressed, ancillary proceedings in the Montana county are the usual route and are routine. Montana also provides a small estate affidavit procedure below statutory thresholds. Recording the resulting instrument promptly is still worth doing — it is what lets an operator pay and a buyer close — but there is no lapse deadline forcing the pace.
Montana imposes no lapse deadline, so the dispersed-heir problem can be worked at whatever pace the budget allows — nothing is running against the family while relatives are located. That changes the order of operations: establish what the interest is actually worth before investing heavily in genealogy, rather than rushing a filing Montana does not require. For the search, the county Clerk and Recorder holds the recorded chain, district court files hold any estate that was opened, and the Board of Oil and Gas Conservation publishes well and production records showing whether anyone is being paid on the description. Montana's Uniform Probate Code informal proceedings keep costs down where nothing is contested, which is the usual situation in an old mineral estate. One complication is worth identifying early: if the description falls within the Fort Peck Reservation, the interest may be allotted trust land administered through the Bureau of Indian Affairs, where fractionation is often extreme and conveyance follows a federal approval process on a longer timeline. As elsewhere, a single heir can generally convey their own undivided fraction without waiting for the rest of the family to be assembled.
We buy Montana interests from intestate estates, including cases where nothing was ever filed. Richland County acreage near the North Dakota line is the strongest position in the state and we underwrite it accordingly; legacy Cedar Creek and Powder River acreage we will quote honestly on mature production rather than Bakken economics. Montana's production tax varies by well type, age and volume, with incentive rates during an initial window that step up afterwards, so an early royalty check from a new well overstates the long-run stream — we model that rather than extrapolating. If property tax has been assessed against the interest and left unpaid, resolve that before agreeing any price.
No. Montana has not enacted a dormant mineral act — there is no lapse clock and no statement of claim to file, so an unadministered estate does not put the minerals at risk of abandonment. The claim that Montana has such a statute is widely repeated and is wrong. Unpaid property tax on a severed producing interest is the real exposure worth checking.
Under the Uniform Probate Code pattern Montana follows, often yes — where all surviving descendants are also the spouse's and the spouse has no others. Where either party has descendants from another relationship, the spouse takes a defined sum plus a fraction and the descendants take the balance.
Usually not. Montana's Uniform Probate Code allows informal proceedings where nothing is contested, and a small estate affidavit is available below statutory thresholds. Both are much cheaper than formal administration, and recording the result is protective against dormancy.
Yes, potentially quite different. Allotted interests within the reservation are administered through the Bureau of Indian Affairs, are frequently fractionated among many heirs, and follow a distinct approval process for conveyance with a longer timeline. Establish this at the start rather than at closing.
Most likely because a tax incentive window closed. Montana applies reduced production tax rates during a defined initial period for qualifying wells and then steps the rate up toward the standard schedule, which can reach substantially higher. Nothing about the well changed except its age. It also means an early check from a new well overstates the long-run stream, which matters when valuing an inherited interest.
You do not need the estate finished to get a number. Send the legal description and whatever you have, and we will tell you what the interest is worth and what it would take to close. Written offer in 48 hours, no cost, no obligation.
Intestate shares, dollar thresholds and procedural requirements are set by statute and are amended regularly. This page is a general description, not legal advice, and the right answer depends on who survived the decedent and on the instruments in your chain of title. Confirm anything load-bearing with an attorney licensed in the state.