Texas oil and gas lawyers and landmen are used to old mineral interests. A deed from 1948 reserves the minerals. The minerals pass through three generations. Nobody drills. Nobody leases. Nobody records anything useful for decades. Then, when a new well gets proposed, everyone starts trying to find the heirs. That is normal Texas title work.
But not in Louisiana. In Louisiana, the first question may not be, “Who owns the minerals?” The first question may be, “Do those mineral rights still exist?” Louisiana is not Texas with parishes and better food. It has a civil law system, a Mineral Code, mineral servitudes, prescription of nonuse, usufructs, forced heirship, and title habits that do not map neatly onto Texas practice.
1. Louisiana Is a Civil Law State
Texas is a common law state. Like lawyers in every state not named Louisiana, Texas lawyers are trained to think heavily in terms of cases, judicial interpretation, and common law property concepts.
Louisiana is different. Louisiana retained a civil law system, with much of its law set out in codes. That includes the Civil Code and the Mineral Code. Case law still matters, but the starting point in Louisiana is often the code article, not a familiar common law doctrine. That difference is not academic. It changes how a lawyer should approach mineral title. Louisiana has codified concepts that Texas lawyers may recognize only imperfectly: mineral servitudes, mineral royalties, executive rights, usufructs, prescription of nonuse, public records doctrine, and the rules for interruption of prescription.
The trap is assuming Louisiana is just using funny vocabulary for the same Texas ideas. It is not.
2. Prescription: The Mineral Right May Be Gone
In Texas, a severed mineral interest generally does not expire simply because nobody uses it. If someone reserved minerals in 1950, that mineral interest may still be outstanding today. It may be fractionalized. It may be owned by heirs nobody can find. It may be stuck behind bad probate. But mere nonuse does not cause it to disappear.
But not in Louisiana! Louisiana mineral rights are generally subject to prescription of nonuse. The basic idea is simple: if certain mineral rights are not used for the legally required period, they may terminate. This is the heart of the Louisiana/Texas distinction.
A Texas title examiner sees an old mineral reservation and usually asks:
“Who succeeded to this reserved mineral interest?”
A Louisiana title examiner sees an old mineral reservation and asks:
“Did this mineral servitude prescribe?”
Those are completely different investigations.
Louisiana uses the concept of a mineral servitude. A mineral servitude is the right to use land belonging to another for the purpose of exploring for and producing minerals. It may feel similar to a severed mineral estate, but it should not be treated like one. Unlike the ordinary Texas mineral estate, a Louisiana mineral servitude may be extinguished by ten years of nonuse. That does not mean old Louisiana mineral rights can be ignored. You still have to determine whether prescription was interrupted, suspended, acknowledged, extended, or otherwise affected.
Was there drilling?
Was there production?
Was the land placed in a conventional or compulsory unit?
Did operations affect all of the servitude or only part of it?
Was there an obstacle that suspended prescription?
That is where the real work begins.
In Texas, we are used to thinking that age makes mineral title harder. In Louisiana, age may mean the mineral right no longer exists.
3. Usufruct: Do Not Just Think Of It As A Life Estate
Texas lawyers and landmen are used to dealing with life estates. Louisiana has something different called usufruct. These are not the same thing, and pretending they are can create problems in mineral title.
A usufruct gives one person certain rights to use and enjoy property owned by another. The person who owns the underlying property subject to the usufruct is often called the naked owner. That distinction can matter when minerals are involved. It matters even more because not all usufructs arise the same way. A usufruct can arise by operation of law, such as in an intestate succession involving a surviving spouse. A usufruct can also be created by will. Those two situations should not be treated as interchangeable.
In an intestacy, the surviving spouse may receive a legal usufruct over certain property, while the children or other heirs may hold naked ownership. But that legal usufruct has limits. One important limit is that the surviving spouse’s legal usufruct may terminate if the surviving spouse remarries. As you can imagine, that can matter a lot in mineral title. If a surviving spouse signed a lease years after the decedent’s death, the title examiner may need to know whether the spouse still had usufruct rights at the time of signing. If the spouse remarried before signing the lease, the spouse’s authority may be different than everyone assumed.
A usufruct created by will can be different. A will may expressly grant a usufruct, define its scope, expand or limit rights, and address whether mineral rights are included. A testamentary usufruct may not be subject to the same remarriage issue unless the will says so. In that situation, the instrument matters. The title examiner cannot assume the will created usufruct has the same mineral consequences as the legal usufruct that might arise in an intestacy.
That distinction can affect leasing authority and payment rights. A lease signed by the wrong person, or without the required consent, can become a title problem.
The problem is that “usufruct” sounds familiar enough for a Texas lawyer to mentally translate it into “life estate.” That shortcut is dangerous. A life tenant in Texas and a usufructuary in Louisiana may occupy similar practical space, but the legal analysis is not the same. Louisiana separates usufruct from naked ownership, and the Mineral Code has specific rules for how usufruct interacts with mineral rights. So when minerals pass through a Louisiana succession, the title examiner has to slow down.
Was there a will or intestacy?
Was the surviving spouse given a legal usufruct?
Did the surviving spouse remarry?
Did the will create a conventional usufruct?
What property was subject to it?
Were mineral rights included?
Who are the naked owners?
Who must sign the lease?
4. Forced Heirship: The Will May Not Do What a Texas Lawyer Expects
Texas lawyers and landmen are used to broad testamentary freedom. With limited exceptions, a Texas property owner can usually leave property to whomever he wants. If he wants to disinherit an adult child, he usually can.
Not in Louisiana! Louisiana has forced heirship. That does not mean every child is always protected, and it does not mean every Louisiana estate has a forced heirship problem. But it does mean a Texas lawyer should not assume a Louisiana will operates like a Texas will. Forced heirship can matter when mineral interests pass through a Louisiana estate. A will may appear to leave everything to one person, but Louisiana law may require analysis of whether there are forced heirs and whether any portion of the estate must be reserved to them.
For a Texas lawyer, the mistake is assuming the succession works like a Texas probate. It may not.
The better questions are:
Was the decedent domiciled in Louisiana?
Did the decedent own Louisiana immovable property or mineral rights?
Were there forced heirs?
Was a usufruct created for a surviving spouse?
What kind of usufruct was created?
Who are the naked owners?
Who has authority to lease or convey the mineral rights?
Are Louisiana succession documents needed?
The Bottom Line
Texas and Louisiana share a border, operators, landmen, families, and a long oil and gas history. They do not share the same mineral law. The mistake is assuming familiar words and places mean familiar law.
They do not.
