How to find out whether you own mineral rights in Texas

Published September 23, 2026. Updated October 12, 2026.

There is no single register of Texas mineral owners. What exists instead is the records of Texas’s 254 counties, kept for a different purpose, that together answer the question most of the time. This guide is about reading them, and about the four or five ways a search goes wrong for reasons that have nothing to do with whether you own anything.

Where the record lives

Texas taxes producing minerals as property. Each year a county appraisal district appraises the producing mineral interests in its county and mails a notice of appraised value to whoever it believes owns them. There are 253 districts for the 254 counties, because Potter and Randall share one. Those accounts go onto the county appraisal roll, which is a public record, and each one carries an owner name, an account number, a lease, an operator and a value.

That roll is the single best starting point, and it has one important limit. It lists interests that are producing and being valued. A mineral interest under a tract where nothing has ever been drilled is normally not on the roll at all, because the appraisal district has no production to value. So a roll search can tell you that you own something; it cannot tell you that you own nothing.

One gap is worth naming plainly. The statewide roll data a search like this is built from carries no owner identifier for four Texas counties - Atascosa, Dallas, Roberts and Zapata - so it cannot reach them at all. If the minerals you are looking for are in one of those four, an empty result is a fact about the data and not about you, and the county appraisal district’s own website is where to look instead.

Type the name as the tax statement spells it

Appraisal rolls are not written the way people write their names, and this is where most searches fail.

Put the last name first. The roll is written surname first, so SMITH JOHN, not John Smith. This is the single largest cause of a failed search, and it fails quietly: type a first name first and the search blocks on it as though it were a surname, so it returns a confident list of strangers rather than an empty page.

Expect capital letters, no commas and no punctuation. Expect the name to be cut off. Many county systems truncate the owner name near thirty characters, so SOUTHWORTH MICHAEL J AND NANCY RUTH becomes something shorter and stranger, and a search for the full name may not match it.

Expect role words to be part of the name. The roll writes ESTATE OF, EST, DECD, LIFE EST, TRUSTEE, TRUST, ET AL, JR and III straight into the owner field. A trust and the person who set it up are two different owner records on the roll, and so is an estate, and so are heirs who have not taken title yet. That is why a search for your own name can come back empty while the minerals sit quietly under a parent’s name, a grandparent’s name or a family trust.

A few smaller shapes are worth knowing.

• A maiden name is a separate owner record, and a woman who inherited minerals before marrying is often still carried under it decades later.
• A dropped middle initial usually still finds the right record, because a close name is matched rather than an exact one, but it lowers the confidence a search reports.
• A nickname is hit and miss: common pairs such as Peggy and Margaret are understood, but a family nickname that no list carries will not be.
• A single initial on the roll, as in HAFNER C, is matched against a first name typed in full only approximately.
• A company, a church or a family entity is found by the name it is registered under, so dropping LLC or CHURCH from the end can lose it entirely.

What a match tells you and what it does not

A match gives you real, checkable facts: the county, the account, the lease name and number, the operator, whether the interest is a royalty interest or an overriding royalty, an appraised value, and the roll year that value came from. It also tells you whether that year’s roll was certified or still preliminary, which matters because a preliminary value can still move.

It does not tell you four things people often read into it.

• It does not prove legal title. An appraisal district records who it believes to be the owner for tax purposes, which is not the same as a chain of title in the deed records.
• It does not tell you whether a lease is still alive or still paying. A value on the roll means the interest was producing in the year appraised.
• It is not a valuation of your minerals. An appraised value is an estimate of future production discounted for tax purposes, and it is not what anybody would pay.
• It does not connect your counties for you. Each appraisal district issues its own account numbers with no reference to any other, so one person with minerals in four counties is four unlinked accounts.

If nothing comes up

An empty result is a starting point, not a conclusion. Three records are worth checking next.

The county clerk’s deed records are the real chain of title, and they are separate from the appraisal roll. Most Texas counties now put an index online, and a search there under a parent’s or grandparent’s name will show mineral deeds, reservations and old leases that no tax roll ever carried. This is also the only place a non-producing interest will show up.

The Texas Comptroller’s unclaimed property search is free and is worth running under every family spelling you can think of. Royalty money an operator could not deliver ends up there, and the companion guide Suspense and unclaimed royalties covers how that works.

The Texas Railroad Commission’s public records will tell you what is happening on a tract once you know where the tract is, but they are organized by well, lease and operator rather than by mineral owner, so they answer the second question rather than the first.

If the paper is genuinely ambiguous, if there is a gap in the chain, or if an interest appears to have been severed by depth or sold off decades ago, that is a title question and a Texas oil and gas attorney is the right person to put it to. A title opinion costs money and answers the question properly; guessing at a deed does neither.

What to do next

Search the roll under every spelling the family has used: your name, a maiden name, a parent’s name, a grandparent’s name, the words estate of, and the name of any family trust. Search the county clerk’s deed index under the same list. Write down the county, the lease name and the operator for every hit, because those three are what every later step needs.

NetAcre finds your minerals on the county roll and tells you when something is filed near them, free.