A well costs money long before it produces anything. Labor, fuel, drilling fluids, site preparation, rig time. None of it has salvage value once the hole is drilled.
That category has a name in the tax code, and it drives one of the larger decisions an operator makes in a given year. Todd Muslow CPA has worked on both sides of it, first auditing operators at KPMG LLP in the Assurance division and later as Chief Accounting Officer of O’Brien Resources, LLC. The decision looks different from each chair.
The Costs That Vanish into the Ground
Intangible drilling costs are the expenditures with no salvageable value at the end. Wages paid to the crew. Fuel burned by the rig. Ground clearing and road building at the site. Supplies consumed during drilling.
What they are not is equipment. Casing, tubing, wellhead assemblies, pumping units, and tanks are tangible property. Those get capitalized and depreciated on their own schedule regardless of what happens with the intangibles.
The split matters because the two categories are treated very differently. Todd Muslow CPA points out that the line between them gets drawn at the invoice level, which is where most of the difficulty lives. A single vendor bill can contain both.
An Election, Not a Default
Under current law, an operator may elect to deduct intangible drilling costs in the year paid or incurred rather than capitalizing them. Independent producers get the fuller version of this treatment. Integrated producers face a partial capitalization requirement and amortize the remainder.
The word election deserves attention. This is a choice made on a return, and once made it governs going forward. It is not something an owner backs into by accident, and it is not something reversed casually in a year when the answer would have been different.
The alternative is capitalization and recovery through depletion over the productive life of the property. Neither path is inherently better. They allocate the same dollars across different years.
Why the Timing Question Is Really a Cash Question
Expensing intangible drilling costs pulls deductions forward. In a heavy drilling year against strong revenue, that can meaningfully reduce current liability. The appeal is obvious.
The complication arrives later. Deductions taken now are deductions unavailable against future production income, and production income tends to arrive over years while drilling costs arrive in weeks. An operator who front loads every deduction may find later years carrying a full tax burden with no shelter left.
Then there is the year with heavy drilling and thin revenue. Expensing into a loss creates a net operating loss with its own carryforward rules and its own limits. The deduction is not lost, but its value moves out into an uncertain future.
You cannot answer this question with a single year’s numbers on the table. It requires a projection of what production looks like over the next several years, which is the part owners most often skip.
The Documentation Problem Behind the Election
An election is only as good as the cost classification underneath it. If intangible costs and equipment costs are mixed in the same account, the deduction rests on a number nobody can trace back to a source document.
Todd Muslow CPA sees this pattern regularly. The election gets made correctly on the return, and the supporting records were never built to defend it. Vendor invoices covering both categories are booked in full to one account because splitting them at entry took an extra five minutes.
The fix is unglamorous and it works. Code the split at the invoice, not at year end. Keep the authorization for expenditure with the well file. Track cost by well rather than by month, because the tax question is asked by property.
Todd Muslow CPA of Shreveport, Louisiana, is a partner of Muslow+Agnew Group, LLC and works with closely held businesses on corporate taxation, reporting, and consulting. His background in oil and gas audit shapes how he approaches these questions, which is to say he assumes someone will eventually ask to see the file.
There is one more consideration owners raise late. A partner or investor who joins the entity after the election was made inherits its consequences, and a buyer of an interest is buying into a deduction pattern already established. The election outlives the person who made it.
The election gets a line on a return. The reasoning behind it should get a memo. When the deduction is questioned three years later, the memo is what answers, and nobody has ever written one from memory.