What is a working interest in oil and gas?

The EIA working-interest definition connects development and operating rights with responsibility for costs. Use the governing documents to understand how those rights and costs are allocated.

NRI describes a revenue allocation; it does not by itself describe a separate set of operating rights. Royalty owners generally do not fund drilling and operating costs in the way working-interest owners do, but “no costs of any kind” is not a sound universal rule. The RRC royalties FAQ addresses payment information and deductions in its Texas context.

Assume a participant owns 10% WI, bears 10% of the specified costs, and the lease has a 20% royalty burden applied proportionally. Assume no other interest burdens, special allocations, or carried interests.

These numbers illustrate arithmetic only. They are not a price, forecast, distribution promise, or investment return. Taxes, other deductions, capital spending, and agreement-specific adjustments are excluded. Do not deduct the same royalty burden a second time from the already calculated 8% NRI.

An operator manages operations under the applicable arrangements. A non-operating owner may participate economically without managing daily field work. The operating agreement determines matters such as approvals, billing, information rights, and treatment of proposed operations.

Do not assume every non-operator has the same voting rights or that an authorization for expenditure is a guaranteed final cost. Read the scope of the proposal and how additional spending is handled.

• Identity: Which leases, wells, depths, or property interests does it cover?
• Costs: What is the share of drilling, completion, operating, and plugging obligations?
• Revenue: Which burdens produce the stated NRI, and can they change?
• Governance: Who operates, approves work, reports results, and bills the participants?
• Risk allocation: What do the agreements and applicable law say about liability and future commitments?
• Evidence: Can the interest schedule be reconciled with actual billing and revenue statements?

Research the operator and available records in Intelligence 2.0, then compare the findings with the transaction documents. Regulatory records alone do not establish the interest you would acquire.

Intangible drilling costs, equipment, depletion, and dispositions are distinct tax topics. The IRS oil-and-gas audit guide discusses these subjects and their conditions; it is not a promise that a particular investor can claim a deduction.

Avoid evaluating an interest using a blanket write-off percentage or assumed tax rate. This is educational information. An adviser should review the ownership structure, activity, documents, and applicable tax rules for the specific circumstances.