How to Research Your Mineral Rights at the Courthouse

What actually lives at the courthouse

The office to know is the county clerk (in some states the register of deeds or recorder). It keeps the official record of every instrument affecting land in the county: warranty deeds, mineral deeds, oil and gas leases, lease releases, probate transfers, affidavits of heirship, division orders in some eras, easements, and liens. Each document is stamped with a book (or volume) and page number when recorded, and those book-and-page citations are how everything cross-references. Valor's county clerk directory lists the clerk's office, contact details, and records access for hundreds of counties across Texas and Oklahoma — it is the practical starting point for any county you need to work in.

Before you go: assemble what you already know

Courthouse time rewards preparation. Gather the family names that may appear in the chain — including maiden names and earlier generations — and rough date ranges for when land was bought, sold, or inherited. Pull any legal description you can find from old papers: a deed in a drawer, an old tax statement, a royalty check stub (the property description on a stub often names the survey or section), a division order, or probate files. Even a fragment like "Section 12, Block 4" or an abstract number narrows the search enormously. Our organizing your royalties guide covers building this file.

How the indexes work

County records are indexed by names, not by maps. The grantor index lists everyone who conveyed something (sellers, lessors); the grantee index lists everyone who received something (buyers, lessees). To find what your grandfather did with his land, you look him up as grantor; to find how he got it, you look him up as grantee. Some counties — and most title plants — also keep a tract index organized by legal description, which lets you pull everything ever filed against a specific tract. Where a tract index exists, use it; where it does not, you work the name indexes generation by generation.

Tracing a chain of title

The method is simple and relentless. Start from a document you trust — the deed that brought the land into the family, a probate order, or the earliest instrument you can find — and walk forward in time through the grantor index: every sale, every lease, every transfer out. The single most important thing to watch for is reservation language. When land was sold, the deed often says something like "save and except an undivided one-half of all oil, gas and other minerals" — that one sentence is how a family that sold its land decades ago still owns the minerals today. Severed minerals then pass by inheritance, often without any new courthouse filing, which is why the chain frequently runs through probate files and affidavits of heirship rather than deeds. Note every book and page as you go; you will need the citations.

Reading what you find

A few document types do most of the work. A warranty deed conveys land — read its reservations and exceptions clause carefully. A mineral deed conveys (or reserves) the minerals themselves, in some fraction. An oil and gas lease does not sell anything; it grants a company the right to develop for a term — and an old lease may have expired or been released, so look for a release of lease filed later. A probate order or affidavit of heirship moves title at a death. Fractions multiply down the chain: if Grandpa reserved one-half and left it to four children, each child holds one-eighth. Keep a running family tree with fractions — it becomes your ownership math. The terms you will hit are all defined in plain language in Valor's mineral rights glossary.

What each county record conveys

The handful of recorded instruments that establish — and trace — mineral ownership.

Online records and state differences

Many counties now expose their indexes — and often document images — online, so a surprising amount of research can happen from a kitchen table; the clerk directory notes how to reach each office and its records. Expect the legal descriptions to differ by state: Texas uses original surveys and abstract numbers (and blocks and sections in West Texas), while Oklahoma and most other producing states use the rectangular section-township-range system. Oklahoma county land records are searched through each county clerk; Texas records through each county clerk's official public records. The system is the same everywhere — names, instruments, book and page — only the map language changes. State-level context lives in our Texas and Oklahoma guides.

When to hand it to a professional

DIY research hits a wall predictably: the chain crosses several counties or states; the family tree forks into dozens of heirs; an old reservation is ambiguous; or a gap appears that no recorded instrument explains. That is the point where a professional title runner or a management firm earns its fee — not because the records are secret, but because experience reads them faster and knows the curative fixes. Valor's mineral ownership verification reconstructs chains of title from the recorded record every day, and if you have just inherited and are starting from zero, begin with the inherited minerals guide.

More free tools for mineral owners

• Royalty decimal calculator — check the decimal on your division order and estimate your monthly share.
• Find unclaimed mineral money — search every state’s official unclaimed-property fund for royalties owed to you or a relative.
• Organize your royalties — build the master list that catches missing checks and wrong decimals.