Here’s a scenario that comes up more often than people expect for our clients: someone passes away as a resident of one state, with an otherwise straightforward estate — except for a mineral interest they own in another state, sometimes inherited generations back and easy to forget about entirely.

**Why out-of-state minerals create a separate problem.** Probate generally has jurisdiction over property located within that state’s borders. If the deceased owned real property — including mineral interests, which are legally treated as real property — in a state other than where they lived, that property typically can’t be transferred through the home-state probate process alone. It requires ancillary probate: a second, related probate proceeding in the state where the property is located.

**Why this catches families off guard.** Mineral interests are easy to lose track of. They don’t show up on a typical asset list the way a bank account or a house does, and a small interest inherited from a grandparent’s estate decades ago may not even be actively producing or generating income — but it’s still a real property interest that needs to be formally transferred.

**What ancillary probate actually involves.** In broad terms, it means opening a second probate proceeding — sometimes a simplified one, depending on the state and the value involved — specifically to transfer that property, even though the primary estate is already being (or has already been) administered elsewhere.

**Why this is worth planning for in advance, not discovering after a death.** If you own mineral interests in a state other than where you live, there are ways to address this proactively — for example, holding the interest in a trust that avoids probate in either state, rather than leaving your heirs to discover and untangle an out-of-state property interest after you’re gone.

**The takeaway for our multi-state clients.** If you own minerals, land, or other real property outside your home state — which is common across the areas we serve — that’s specifically worth flagging when you review your estate plan, not something to assume your general documents already handle.

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Attorney Advertising. This post is for general informational purposes only and is not legal advice. No representation is made that the quality of legal services performed is greater than that of other lawyers. Laws vary by state and change over time — consult an attorney about your specific situation before acting on anything here.