An ORRI pays like a royalty and dies like a lease. Understanding that one sentence is most of what separates owners who price these correctly from owners who do not.
An overriding royalty interest is a share of production carved out of the working interest under an oil and gas lease, free of drilling and operating costs. It is created out of the leasehold, not out of the minerals, which is the whole point and the whole risk.
Landmen and geologists commonly take one as compensation for assembling a prospect. Companies retain one when they farm out acreage. It is the standard currency for someone who contributed knowledge or acreage but does not want to pay for wells.
This is the difference that decides value.
| Mineral royalty | Overriding royalty (ORRI) | |
|---|---|---|
| Carved out of | The minerals themselves | The lease (the working interest) |
| Bears well costs | No | No |
| Survives lease termination | Yes. The minerals are still yours and can be re-leased | No. When the lease dies, the override dies with it |
| Perpetual | Usually | Only as long as that lease lives |
| Typical value | Higher, per dollar of current income | Lower, discounted for lease risk |
A mineral owner whose lease expires still owns the dirt and can lease again next year at today's rates. An override owner whose lease expires owns nothing at all. That asymmetry is why a buyer will pay less for an ORRI producing the same monthly check as a mineral royalty. Not because it is worth less today, but because its future is contingent on somebody else's lease staying alive.
An override is expressed as a fraction or percentage of 8/8, gross production. If you hold a 2% ORRI in a well and the well produces $100,000 of oil in a month, the override is $2,000 before taxes and any deductions your instrument allows.
Where it gets confusing is when an override is defined proportionately reduced to the leasehold, meaning your 2% applies only to the working interest actually covered. If the assignment covered a 50% working interest, your effective share is 1%. Read the assignment carefully; the phrase "proportionately reduced" cuts many overrides in half and owners routinely miss it.
If you know the working interest and the net revenue interests involved, our ORRI calculator works out the retained override and what it earns at a given well cost multiple.
It depends entirely on the instrument that created yours. Some override assignments say the interest is free of all costs including post-production. Many say nothing, in which case state law and the underlying lease language decide, and gathering, compression, and processing deductions may be charged against you. Our statement decoder explains those line items and royalty payment laws by state covers your right to demand an itemized accounting.
Less than an equivalent mineral royalty, and the gap widens as the lease gets older and the wells get closer to the end of their lives. Buyers, including us, discount an override for:
None of that makes an ORRI a bad asset. A 3% override on a good Anadarko Basin well is a fine thing to own. It simply means the multiple applied to it should be lower than the multiple applied to minerals, and any buyer who quotes you an identical multiple for both either does not understand what you have or is hoping you do not.
Yes, and it is a market we participate in directly. Berlin buys overriding royalty interests of any size, including small ones, including old landman overrides nobody has looked at in thirty years, and including whole portfolios accumulated across a career.
Overrides are also one of the more common things people inherit without understanding. If a parent or grandparent worked as a landman, geologist, or independent, there is a reasonable chance of overrides in the estate that never made it onto anyone's list of assets. Our inherited minerals guide covers getting them into your name, and unclaimed royalties covers money already sitting in suspense.
What we need to make an offer is modest: a recent check stub or two, the assignment if you have it, and the well or county. If you have nothing but a name and a hunch, we will look it up.
Send a check stub or the assignment. We will value it with the reasoning shown, including how we discounted for lease risk, and tell you honestly if holding it beats selling it. Free, no obligation.
Get a Free Valuation Ask a LandmanBerlin Royalties is a mineral buyer and a landman shop in Tulsa, not a law firm or a financial advisor. This is general information about a common interest type. Your assignment and the underlying lease control what you actually own. Last reviewed August 2026.