Working interest vs. royalty interest
Side by side
| Working interest | Royalty interest | |
|---|---|---|
| Pays operating costs (LOE) | Yes, in proportion to WI | No |
| Pays drilling & workover capital | Yes, via AFE and JIB | No |
| Share of revenue | WI × (1 − total royalty burden) = NRI | Its stated decimal, off the top |
| Carries plugging liability | Yes — follows ownership | No |
| Exposure to cost inflation | Direct | None |
| Upside from a workover or new well | Full share of the added volume | Share of added volume, no cost |
| Typical federal tax treatment | Ordinary income; IDC and depletion; often non-passive | Ordinary income with depletion; passive |
| Ends when the lease ends | Yes | Royalty and ORRI yes; mineral ownership no |
| Who makes operating decisions | The operator, with non-ops voting per the JOA | Nobody — you are along for the ride |
Tax treatment is general and depends on how the interest is held. Confirm with your CPA before it affects a purchase decision.
The same well, two owners
One well producing 20 BOPD gross at a $62 realized price, $4,200 a month in LOE, a 20% landowner royalty and a 2.5% override. Illustrative figures.
50% working interest owner
Owner of the 20% royalty
The working interest earns about 63% more per month here — and it is the only one of the two that can have a negative month, pay for a $60,000 workover, or inherit a plugging bill. At $45 oil the gap narrows sharply; below the economic limit it inverts.
Common questions
What is the difference between working interest and royalty interest?
A working interest owns the right to develop and produce, and pays its proportionate share of every cost — drilling, operating, workovers and eventually plugging. A royalty interest owns a share of production revenue free of those costs. Working interest carries both the upside of better operations and all of the liability; royalty carries neither.
How do you calculate net revenue interest from working interest?
NRI equals your working interest multiplied by one minus the total royalty burden on the lease. A 50% working interest on a lease burdened by a 20% royalty and a 2.5% override gives 0.50 × (1 − 0.225) = 0.3875 NRI. You pay 50% of the costs and receive 38.75% of the revenue.
Is working interest riskier than royalty interest?
Yes, materially. A working interest owner can have a month where costs exceed revenue and still owe on the joint interest billing, and is on the hook for plugging at the end of life. A royalty owner's worst case is a smaller check. The flip side is that a working interest owner can change the outcome by operating better; a royalty owner cannot.
Which one should I buy?
Buy working interest if you intend to operate or can meaningfully influence how the wells are run, and you can absorb a workover or a plugging bill. Buy royalty or minerals if you want exposure to production and prices without operating risk and are content with a lower expected return for it. Owning a small non-operated working interest in wells run by someone else is the combination that most often disappoints.
What is an overriding royalty interest?
An overriding royalty is carved out of the working interest's share rather than from mineral ownership. It pays like a royalty — free of operating costs — but it expires when the lease does, so it is worth less than an equivalent mineral decimal that survives a lease termination.