If you’ve inherited or acquired an oil and gas interest, one of the most common points of confusion is the difference between mineral rights and royalty interests. They’re related, but they’re not the same thing — and knowing which one you own affects both your rights and what a buyer will pay.
Mineral Interest (MI)
A mineral interest owner holds the underlying ownership of the minerals beneath a tract of land. This includes the right to explore, develop, and produce those minerals, and — critically — the right to enter into an oil and gas lease with an operator. Mineral owners typically receive a royalty (commonly 1/8 to 1/4 of production revenue) once a well is drilled, along with any lease bonus payment.
Royalty Interest (RI)
A royalty interest is the right to receive revenue from production, without the obligation to pay drilling, operating, or plugging costs. Royalty interest owners generally do not have the right to negotiate or sign a lease themselves.
Non-Participating Royalty Interest (NPRI)
An NPRI is similar to a royalty interest — it entitles the owner to a share of production revenue — but it’s carved out separately from the mineral estate and comes with no right to participate in leasing decisions or bonus payments.
Overriding Royalty Interest (ORRI)
An ORRI is created out of the leasehold (working interest) rather than the mineral estate itself, and it typically terminates when the underlying lease terminates. ORRIs are common in situations where a landman, geologist, or previous operator retained a share of production revenue as part of a deal.
Why the Distinction Matters When Selling
Each interest type is valued differently and carries different rights, so knowing exactly what you own — and having it verified against the runsheet and division orders — is the first step to getting an accurate offer. Chain-of-title issues, like a missed conveyance or an overlooked depth severance, can affect which of these categories your interest actually falls into.
Not Sure What You Own?
Husky Land Services examines title and verifies ownership type as part of every offer we provide, whether you hold a mineral interest, royalty interest, NPRI, or ORRI in Texas, New Mexico, or Oklahoma. Contact us to get started.