
Investors often form an LLC before buying a working interest because it feels like the careful move. Under the passive loss rules, that LLC is the one thing that takes the salary offset away.
An LLC keeps a well's liabilities away from your house and your brokerage account. For a rental property or an operating business, putting the asset in one is usually the right call.
For an oil and gas working interest, the LLC takes away the reason you bought it. The drilling deduction that was supposed to offset your salary becomes a passive loss, and with no passive income to absorb it, it saves nothing this year.
Section 469(c)(3)(A) takes a working interest out of the passive rules when you hold it "directly or through an entity which does not limit the liability of the taxpayer with respect to such interest." The sentence says nothing about hours worked or how well you understand the geology. It asks only whether someone can come after you personally if the well goes wrong.
That exposure is the price of the active treatment. A general partner can be held personally liable for the partnership's obligations, and the statute rewards an investor who accepts that. Take the exposure away and the treatment goes with it.
Reg. §1.469-1T(e)(4)(v)(A) names three kinds of interest that limit liability: a limited partnership interest when you are not also a general partner, stock in a corporation, and an interest in any other entity that "under applicable State law, limits the potential liability of a holder of such an interest for all obligations of the entity to a determinable fixed amount." The regulation never says "LLC." State LLC statutes cap a member's liability by default, and that puts the LLC in the third category.
Owners of a single-member LLC often assume it does not count, because the IRS disregards the entity for income tax and treats its activities as the owner's. That is the best argument the other way, and we have found no ruling or case that settles it. The better reading runs against it. The regulation asks what state law does to your liability, it has no exception for disregarded entities, and a one-member LLC limits liability under state statutes the same way a ten-member LLC does. We would not rest a six-figure deduction on the argument.
Consider a joint-filing couple who earn $800,000 in wages and take the standard deduction. They invest $300,000 in a drilling program in December 2026, and the program's budget is 70% intangible drilling costs (IDC), so $210,000 of IDC lands on their 2026 return. Neither spouse does any work in the program, their two-member LLC holds the interest all year and files as a partnership, the well produces nothing until 2027, and nothing else they own produces passive income.
Held in their own names or as general partners
Taxable income before the deduction ($800,000 less $32,200): $767,800
IDC deducted against wages: ($210,000)
Taxable income after: $557,800
Federal tax saved for 2026, at 35%: $73,500
Held through their two-member LLC
Passive loss from the well: $210,000
Passive income available to absorb it: $0
Loss allowed for 2026: $0
Federal tax saved for 2026: $0
The 35% bracket for joint filers in 2026 covers taxable income from $512,450 up to $768,700. Both figures in the first version sit inside it, so each dollar of IDC is worth 35 cents once allowed. The LLC version allows none of it this year. The $210,000 is suspended and carried forward, which section 7 covers.
The test looks through every tier between you and the well. In CCA 200952054, a 2009 Chief Counsel email, the IRS considered general partners in a general partnership that held its interest through a chain of LLCs and trusts. Their general partner status did not help, because "the general partners have used lower tier entities to limit their liability." The email leans on the Senate Finance Committee's report on the 1986 Act, which says the rule "is applied by looking through tiered entities."
The facts in that email involved landfill gas, which it found was not oil and gas at all. The liability point came second and was hedged with "it appears," though its reasoning tracks the regulation. A Chief Counsel email is not precedent and cannot be cited as such under §6110(k)(3). It does show how an examiner is likely to read the rule.
So ask the sponsor more than whether the units are general partner units. Ask who holds title to the working interest. If the program's partnership holds it directly, a general partner unit works. If the partnership holds it through its own LLC subsidiary, the units can carry the general partner label and still fail.
The regulation's second category is stock in a corporation, and it makes no exception for S corporations. In Field Service Advice 200102018, the IRS treated the working-interest losses inside the taxpayers' S corporation as passive for that reason. The same taxpayers each held a 1% general partner interest, alongside a limited partner interest, in a separate partnership, and the losses from that partnership were non-passive.
That advice also shows why the fallback rarely works. Outside the exception you can still avoid passive treatment by materially participating, and the husband there claimed 308 hours, including approving bills and signing checks. The IRS described his work as studying and reviewing reports and making financial decisions, called that investor-type activity, and noted that a management company ran the day-to-day operations. A drilling program is run by its operator, which leaves an outside investor little operating work to log.
Limited partner units are the regulation's first category. Many programs sell both classes. Choosing the limited partner units for the liability cap means buying a passive investment, whose deduction can only offset passive income.
The regulation anticipates the worry that pushes people into LLCs. Under §1.469-1T(e)(4)(v)(B), protection through an indemnification agreement, a stop-loss arrangement, insurance or anything similar is ignored when deciding whether your liability is limited.
That gives you a way to manage the exposure. The program's own liability and well-control coverage, an umbrella policy in your name and any indemnity from the sponsor all reduce what you could lose without turning the interest passive. Ask the sponsor for the certificate of insurance and the coverage limits before you sign, the same way you would ask for the drilling budget.
The deduction is deferred, not erased. A passive loss you cannot use carries forward under §469(b) and offsets passive income in later years. Rental income from property you own counts. So can net income from the well itself in later years, while the LLC still holds the interest. Section 469(c)(3)(B) makes that income non-passive only after a loss from the property was treated as non-passive under the working-interest exception, which never happened here.
A sale releases the rest. Under §469(g), when you dispose of your entire interest in the activity in a fully taxable transaction, the suspended loss first offsets that year's net income from your other passive activities, and the remainder becomes deductible against any income. A sale to a related party delays the release until the interest passes to someone unrelated.
Moving the interest out of the LLC helps only for later drilling. Reg. §1.469-1T(e)(4)(ii) tests each drilling cost by when the work is performed, so costs for work done while the LLC held the interest stay passive. A transfer can carry tax consequences of its own, so model it before you make it.
Getting the holding form right is the first gate. A large check can still run into the $512,000 cap on a 2026 joint return, and our excess business loss calculator shows how much of a loss lands this year. Before you subscribe, we read the program's documents for how the working interest is held, model the tax value at your marginal rate and prepare the return from the K-1. Book a call and bring the subscription agreement, the partnership agreement and the drilling budget.
General information, not tax advice for your situation. Whether an entity limits liability depends on state law and your facts. Figures are federal and current as of November 2026.
Frequently asked
Probably. The test turns on whether state law caps what a holder can owe for the entity's debts, and the rule carves out nothing for an entity the IRS treats as disregarded for income tax. Some argue the owner of a disregarded LLC holds the interest directly, but no ruling or court has adopted that view.
Not for a working interest the LLC owns. You can keep the company for other assets and take the drilling investment personally or through general partner units, then cover the risk with insurance, which the regulation ignores when it tests liability.
It is suspended rather than lost. It offsets passive income in later years, which can include production income from that same well, and whatever remains after netting against other passive income becomes fully deductible once you sell your whole interest in a fully taxable sale.
No. Insurance, stop-loss arrangements and indemnification agreements are all disregarded under Reg. §1.469-1T(e)(4)(v)(B), so they cut your real exposure without changing the tax answer.
Yes, if you also own a general partner interest in that partnership. Example 3 in Reg. §1.469-1T(e)(4)(v)(C) treats an investor holding both classes as owning a non-passive interest in every well. Otherwise the units are passive unless you materially participate, and reviewing reports does not count.