Wyoming · no will
Wyoming splits an intestate estate down the middle when there are children — and it never takes the interest away for sitting idle.
If a Wyoming relative died without a will and owned mineral rights, the interest passed at death under Wyoming's descent and distribution statute. Wyoming's rule is comparatively simple: where the decedent leaves a surviving spouse and children, the spouse generally takes one half and the children share the other half; where there are no surviving children or their descendants, the spouse takes the whole estate. There is no dormancy statute in Wyoming, so nothing is lost by the family having taken years to sort this out. What determines whether the interest is worth pursuing is location — Wyoming's internal value spread is enormous, and a Powder River oil interest and a legacy Green River gas interest are not comparable assets.
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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: Wyo. Stat. § 2-4-101
Under Wyoming's descent and distribution statute, where a decedent leaves a surviving spouse and surviving children or their descendants, the spouse generally takes one half of the estate and the children take the remaining half in equal shares, with the descendants of a deceased child taking that child's share by representation. Where the decedent leaves a surviving spouse but no children or descendants, the spouse takes the entire estate. Where there is no surviving spouse, the estate passes to the children and their descendants, and failing those it moves to parents, then to siblings and their issue. The scheme is more mechanical and less conditional than the Uniform Probate Code states, which makes Wyoming intestate shares comparatively easy to compute once you know who survived.
Working out the shares is straightforward in Wyoming; working out what the shares are worth is not. The state divides sharply. Converse and Campbell counties sit over the Powder River oil fairway, where sustained horizontal development targets the Turner, Parkman, Niobrara and Shannon benches and where oil cuts are meaningful. Sublette and Sweetwater hold the great Green River gas fields — very large volumes into a persistently weak regional market, most of it well down the decline curve. There is a further complication specific to Wyoming: a large share of the state's mineral estate is federal, and many private tracts are checkerboarded with or unitised alongside federal acreage. An intestate estate may therefore hold fee minerals, an interest in a federal unit, or state trust acreage, each with different royalty economics and different administration.
Wyoming probate runs through the district court in the county where the decedent lived or, for a non-resident, where the property sits. A full administration produces a decree of distribution that is recorded in the county where the minerals lie, putting the heirs into the chain of title. Wyoming also provides simplified procedures for smaller estates, including a summary procedure and an affidavit process below statutory value thresholds, which can be markedly cheaper than full administration. That is worth asking about for mineral estates specifically, because a mineral-only estate is often modest in appraised value even where the underlying interest carries real upside. Because Wyoming imposes no lapse deadline there is no statutory urgency — but an operator will not pay and a buyer cannot close until the chain is recorded.
Wyoming gives families something most states do not on this problem: time. With no dormant mineral act, there is no deadline running against an interest while relatives are located, so heir-finding can proceed at whatever pace the budget allows without risking the asset. That changes the calculation. Rather than rushing an administration, it is usually worth first establishing what the interest is actually worth, because Wyoming's internal value spread is so wide that the answer often decides whether exhaustive genealogy is justified at all. A producing Powder River royalty in Converse or Campbell county can easily justify a formal proceeding; a fractional interest in mature Green River gas frequently cannot. The materials for the search are the county clerk's records where the land sits, district court probate files where any estate was opened, and the Wyoming Oil and Gas Conservation Commission's well and production records, which reveal whether an operator is currently paying anyone on the description. If wells are producing and no family member has received payments, the operator is holding suspense and will have its own view of who the owners are. Where some heirs cannot be found, note that a single heir can generally convey their own undivided fraction without the others, so an incomplete family picture does not prevent one branch from selling.
We buy Wyoming interests from intestate estates across the state. Two things shape our number and we will explain both. Wyoming takes six percent in severance tax plus county ad valorem production tax, which reduces net royalty and therefore value relative to a lighter-tax state — we price off net rather than gross. And if the tract is committed to a federal unit, the federal royalty rate and participation factor change the arithmetic; that is not a reason to discount the interest, but it is a different calculation. Where the estate holds acreage outside the active fairway we will still make an offer and will be honest that the number reflects genuine uncertainty about future drilling.
Only where there are no surviving children or their descendants. Where children survive, Wyoming generally gives the spouse one half and the children the other half in equal shares. This is more clear-cut than in the Uniform Probate Code states.
No. Wyoming has no dormant mineral act, so a severed interest stays with the holder and their heirs indefinitely regardless of how long it sits idle. There is no deadline working against you.
Not necessarily. Wyoming has simplified summary and affidavit procedures for estates below statutory value thresholds, and mineral-only estates frequently qualify because their appraised value is modest even when the interest has upside. Ask about these before defaulting to full administration.
Location decides it. Producing Powder River oil royalty in Converse or Campbell is the most valuable position in Wyoming; Green River gas acreage is worth substantially less. Whether the tract is fee, state or federal also matters. Send the legal description and we can be specific.
Usually not, for the heirs who can be found. Each heir holds an undivided fractional interest that can generally be conveyed independently, so one branch of the family selling does not require the missing relatives to surface first. What does need resolving is any break in the recorded chain — a deceased owner whose share never passed to anyone of record — because that gap sits above your fraction rather than beside it.
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.