If you've inherited mineral rights — or think you might own them — at some point you'll need to look at a mineral deed. This is the document that says who owns the oil, gas, and other minerals beneath a piece of land. It's not the same as the deed to the house or the farm. It's a separate instrument, and it controls something that could be worth thousands — or hundreds of thousands — of dollars.
Most people who own mineral rights have never actually read the deed that created their ownership. That's understandable. These documents are written in legal language, they reference survey systems most people haven't thought about since high school, and they can look intimidating. But once you know what you're looking for, a mineral deed becomes readable. You don't need to be a lawyer.
By the end of this article, you'll know what a mineral deed is, how it differs from other property deeds, what the key sections mean, why the legal description is the most important part, and how to find your deed if you don't already have a copy. If you're thinking about selling your mineral rights, this is the right place to start.
Mineral Deed vs. Warranty Deed: They're Not the Same Thing
When most people think of a property deed, they're thinking of a warranty deed — the document that transfers ownership of the surface land, including the house, the barn, or the farm. A warranty deed conveys the surface estate and, unless it says otherwise, the mineral estate beneath it.
A mineral deed is a separate document that transfers only the mineral estate — the legal right to own, lease, or sell the oil, gas, coal, and other minerals beneath a tract of land. It does not transfer the surface. You can own the minerals under a property you've never set foot on and have no other connection to.
In many families, the split happened decades ago. A grandparent sold the surface land but kept the minerals. Or they sold the minerals separately to a company. Or a deed carved out "one-half interest in and to all oil, gas and other minerals" before conveying the rest to someone else. These are called severed mineral interests, and they're extremely common in oil and gas states.
In Texas, it's estimated that a significant majority of the state's mineral interests have been severed from the surface at some point in their history. In Oklahoma and Louisiana, the same pattern holds. If your family owned farmland in those states — or in Pennsylvania, West Virginia, North Dakota, Wyoming, or any other producing state — there's a real chance that a mineral deed exists somewhere in the chain of title, either granting minerals to your family or severing them away.
One practical note: some older conveyances didn't use a separate mineral deed at all. Minerals were reserved in a surface deed using language like "excepting and reserving unto grantor all oil, gas and mineral rights." That reservation has the same legal effect as a mineral deed — it creates a separate mineral estate. So when you're looking at old deeds, watch for reservation language, not just documents labeled "Mineral Deed."
The Key Elements of a Mineral Deed
Every valid mineral deed has several core components. Knowing what each one does helps you understand what you actually own — and flag anything that looks incomplete or unusual.
Grantor and Grantee
The grantor is the person or entity transferring the mineral interest. The grantee is the person or entity receiving it. In a deed from 1952 passing minerals down through a family, your grandfather might be the grantor and your grandmother (or a trust, or multiple children) the grantee. These names matter because they establish the chain of title — the unbroken sequence of ownership from the original patent to you.
If there are multiple grantees — say, five siblings — the deed should specify how they hold the interest. "As joint tenants with right of survivorship" means that when one owner dies, their share passes automatically to the surviving owners. "As tenants in common" means each person owns a separate, transferable share that can be inherited or sold independently. Most inherited mineral interests are held as tenants in common, which is why you sometimes end up with a 1/8 interest or a 3/16 interest — fractions that look odd until you understand the history.
Legal Description
This is the section that describes exactly which land the minerals are under. We'll cover this in detail in the next section because it's the most important part of any mineral deed and the most commonly misunderstood.
Consideration
Consideration is what was paid for the minerals. In older deeds, you'll often see something like "Ten Dollars and other good and valuable consideration" — that's standard language and doesn't mean the minerals actually sold for ten dollars. It's a legal formality. More recent deeds sometimes show the actual sale price. The consideration clause doesn't usually affect what you own, but it can matter in certain legal disputes or when calculating the tax basis for capital gains purposes.
Exceptions and Reservations
This is where mineral deeds get complicated, and where people often miss something important. A deed might convey "all oil, gas and other minerals" but then contain language that excepts certain minerals, certain depths, or certain prior leases. For example:
- A deed might say it conveys all minerals "except coal and lignite."
- It might convey minerals only "down to a depth of 3,000 feet."
- It might reference an existing oil and gas lease and say the conveyance is "subject to" that lease, meaning a third party already has the right to drill.
- In Louisiana, civil law rules apply, and mineral servitudes (the Louisiana equivalent of a severed mineral interest) can expire if they're not used within ten years — a concept that has no equivalent in Texas or Oklahoma.
Read these sections carefully. The exceptions tell you what you don't own, and they can materially change the value of what you do own.
Warranty Clause
Near the end of most mineral deeds, you'll find a warranty clause. A general warranty means the grantor promises to defend your title against any claim by anyone. A special warranty limits that promise to claims arising through the grantor specifically. A quitclaim deed contains no warranty at all — it conveys only whatever interest the grantor happens to have, with no guarantee that they have anything. If you received a quitclaim deed for mineral rights, your ownership may be valid, but you'd want a title search to be sure.
Why the Legal Description Is the Most Important Part
Everything in a mineral deed depends on the legal description being accurate and complete. This is the section that identifies the specific land. If it's wrong, the deed may not convey what you think it does.
There are three main systems used to describe land in the United States, and which one applies depends on where the land is located.
Metes and Bounds is used in most of the eastern states — Pennsylvania, West Virginia, Ohio, Alabama, Mississippi, and others. It describes land by reference to physical features and measurements: "Beginning at a white oak tree on the east bank of Dry Creek, thence running north 45 degrees east 220 yards..." This system predates the federal land survey and can be very difficult to interpret without a surveyor.
The Public Land Survey System (PLSS), also called the rectangular survey system, is used in most western and midwestern states — Texas (in some areas), Oklahoma, Kansas, North Dakota, Montana, Wyoming, Colorado, New Mexico, Utah, Alaska, Arkansas, Louisiana (outside the old French land grant areas), and California. Under this system, land is described in terms of townships, ranges, and sections. A section is one square mile (640 acres). A legal description might read: "The SW/4 of Section 14, Township 3 North, Range 5 West" — meaning the southwest quarter of a specific section in a grid. Once you know how to read the grid, this system is actually straightforward.
Metes and Bounds combined with survey calls shows up frequently in Texas, particularly in older deeds from Spanish and Mexican land grant areas. Louisiana has its own system rooted in French arpent measurements for land along waterways, which is why Louisiana deeds often look nothing like deeds from Oklahoma or Texas.
What to watch for in the legal description:
First, confirm that the acreage stated in the deed matches what you expect. If a deed says "the NE/4 of Section 10" but also says "containing 80 acres, more or less," that's a flag — a quarter section should be 160 acres, not 80. Second, look for depth limitations. Some deeds convey minerals only to a certain depth (for example, above the base of the Woodford Shale in Oklahoma), which can be extremely consequential if the most valuable formations are deeper. Third, check for reference to a prior survey or plat — particularly in Texas, where many older surveys are identified by the original grantee's name ("the A.J. Harrington Survey, Abstract No. 321, Angelina County").
If you're not sure the legal description matches the land you think you own, a landman (a professional who researches oil and gas titles) or a real estate attorney can help verify it. This is worth doing before you lease or sell.
How Mineral Ownership Fractions Work — and Why They Matter
One of the most confusing things about inherited mineral rights is the fraction. You might know that you "own minerals" under a piece of land, but the deed might say you own a 1/4 interest, or 3/8, or 15/64. What does that actually mean?
When minerals are leased to an oil company, the lease includes a royalty rate — the percentage of production revenue that goes to the mineral owner. In Texas and Oklahoma, royalty rates have historically ranged from 1/8 (12.5%) to 1/4 (25%), with modern leases often landing between 1/5 and 1/4. In North Dakota's Bakken play, royalties of 1/6 to 3/16 are common. In Pennsylvania's Marcellus Shale, 1/8 royalties were standard for years, though newer leases often carry higher rates.
Your mineral ownership fraction and the royalty rate multiply together. If you own a 1/2 interest in 160 acres and the lease carries a 1/5 royalty, you're entitled to 1/10 of the production revenue from those 160 acres. If a well on that acreage produces $500,000 in revenue in a year, your share before taxes is $50,000.
Why does this matter when reading a deed? Because the deed establishes your ownership fraction, and that fraction may have been further divided by subsequent deeds you haven't seen. A mineral interest can be subdivided and sold in pieces many times over. Before you lease or sell, it's worth pulling all the deeds in the chain of title to make sure your actual ownership fraction is what you think it is. This is called a title runsheet, and it's standard practice in the industry.
How to Find Your Mineral Deed
If you've inherited mineral rights but don't have a copy of the original deed, here's how to find it.
County Clerk or Register of Deeds. In most states, mineral deeds are recorded in the county where the land is located — not where the grantor or grantee lived. In Texas, this is the County Clerk's office. In Oklahoma, it's the County Clerk as well. In Louisiana, it's the Clerk of Court for each parish (Louisiana uses parishes instead of counties). In Pennsylvania and West Virginia, it's the County Recorder of Deeds. Most counties now have online deed search tools. Search by the grantor's name, the grantee's name, or the legal description.
What to search for. If you're looking for an ancestor's deed, try searching by their last name under "Grantor/Grantee Index" going back to the estimated time of transfer. Many county clerk websites let you search free online and view scanned images of the original documents. You can usually download a PDF copy. If the records aren't digitized — common in rural counties with records going back to the 1800s — you may need to visit in person or hire a local landman.
State-specific resources. Texas has a useful tool through the General Land Office for older patents, and many Texas counties have their deed records on a site called TexasFile or the county appraisal district website. Oklahoma's County Clerk offices vary widely in what's online — some rural counties have minimal digital records. In North Dakota, most counties participate in the North Dakota Recorder's Information Network (NDRIN), which offers online access to recorded documents. Montana counties are less standardized; calling the county clerk directly often works best.
If you've inherited and never probated. If minerals were left to you through a will that was never probated — or through an intestate estate (no will) — the title may not yet reflect your ownership. In Texas, an Affidavit of Heirship is often used to establish title without formal probate. In Oklahoma and other states, the process differs. If this is your situation, talk to a probate attorney in the state where the land is located before trying to lease or sell. Attempting to sell minerals without clear title is one of the most common problems that delays or kills transactions.
Royalty statements and division orders. If you're already receiving royalty checks, the operator (the company running the well) should have your ownership information on file. A division order — the document the operator sends you to confirm your ownership fraction before cutting checks — references the legal description and your decimal interest. That document can help you identify which deeds created your ownership.
What to Do Once You Have Your Deed
Once you've found your mineral deed, read through it with the framework from this article. Look at the grantor and grantee to confirm the chain of title connects to you. Read the legal description carefully and compare it to any royalty statements or lease agreements you have. Check the exceptions — make sure you actually own the minerals you think you own, at the depths that matter. Note the warranty type.
If anything looks unclear — depth limitations, unusual language in the exceptions, a quitclaim instead of a warranty, acreage that doesn't add up — don't guess. A landman can usually review a deed and give you a clear answer quickly and at low cost. If the issue is legal (defective title, probate questions, conflicting deeds), an oil and gas attorney in the relevant state is the right call.
If you're thinking about selling your mineral rights and want to understand what they might be worth before you talk to anyone, pull the deed, identify the county and legal description, and check whether there's any active production or recent leasing activity in the area. You can search the state's oil and gas regulatory agency website — the Texas Railroad Commission, the Oklahoma Corporation Commission, the North Dakota Industrial Commission — by well location or operator name to see what's happening near your acreage. That context will make any conversation with a buyer or broker far more productive.
If you'd like to talk through what you've found, reach out to us directly. A real person — not an automated system — will call you back within one business day. There's no obligation, no pressure, and no cost. We'll tell you honestly what your minerals might be worth and what options make sense for your situation. That's it.