Working Interest
A percentage ownership in an oil and gas lease that entitles the owner to a share of production revenues but also obligates them to pay a proportionate share of all drilling, completion, and operating costs.
Working interest (WI) is the cost-bearing ownership interest in an oil and gas lease. A working interest owner has the right — and the obligation — to participate in drilling and production operations in proportion to their ownership percentage.
Working Interest vs. Royalty Interest
The fundamental distinction in oil and gas ownership is between interests that bear costs and interests that do not:
| Interest Type | Bears Costs? | Receives Revenue? |
|---|---|---|
| Working Interest | ✅ Yes | ✅ Yes (after royalties) |
| Royalty Interest | ❌ No | ✅ Yes (first priority) |
| ORRI | ❌ No | ✅ Yes (carved from WI) |
Non-Consent Provisions
Most joint operating agreements (JOAs) include a non-consent election — a working interest owner can decline to participate in a specific well. The consenting parties then bear 100% of costs but receive an increased share of production (often 300–400% of the non-consenting party's share) until they recover their carried investment plus a risk penalty.
Working Interest in Data Context
State regulatory production data reports production at the lease or well level — it does not distinguish between individual working interest owners. If a well has three working interest owners, all three share the regulatory reported gross production volume in proportion to their WI. Determining net production to any specific party requires applying their NRI to the gross regulatory data.
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