Gathering, Processing and the 18% Rule: Reading a Wyoming Royalty Check
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Two owners in the same Sublette County gas unit compare check stubs and find that one is paid noticeably less per thousand cubic feet than the other. Same wells, same month, same gas. The difference is almost always in the deduction lines, and in Wyoming those lines are governed by a statute that is more protective of royalty owners than most: the Wyoming Royalty Payment Act, at sections 30-5-301 through 30-5-305 of the Wyoming Statutes.
The Wyoming Supreme Court has described the Act as written in 1982 “to stop oil producers from retaining other people’s money for their own use,” and it is meant to be read in the owner’s favor. Knowing how it works is the fastest way to tell whether a Wyoming check is right.
The Default Rule: Royalty Is Free of the Costs of Production
The Act defines royalty as the owner’s share of production free of the “costs of production,” unless a signed written agreement expressly says otherwise. The statute’s list of costs of production is long and specific. It includes lease acquisition, drilling and completion, pumping or lifting, recycling, gathering, compressing, pressurizing, heater treating, dehydrating, separating, storing, and transporting the oil to the storage tanks or the gas into the market pipeline.
What the Act does allow a payor to deduct is narrower: the reasonable and actual direct costs of transporting oil from the storage tanks to market, of moving gas after it enters the market pipeline, and of processing gas in a processing plant. So the useful question about any deduction on a Wyoming stub is where the cost was incurred. Before the gas reaches the market pipeline, it generally belongs to the operator. After that point, or inside a gas plant, it may be shared.
How Wyoming’s Supreme Court Reads “Gathering”
Operators have argued over where gathering ends. In Cabot Oil & Gas Corp. v. Followill (2004), the court defined gathering as the costs to collect gas and move it to a point where it can be processed or transported to the user, and it rejected the argument that gathering stops at the lease line. Moving gas from the wellhead across country to the market pipeline was gathering, and could not be charged to royalty owners. A deduction labeled “transportation” on your stub is therefore not automatically allowed; it depends on whether the gas was already in the market pipeline.
When a Lease Can Override the Default
The statutory definitions are the starting point, not an unbreakable rule. Section 30-5-305(a) opens by saying that “royalty”, “overriding royalty”, “other nonworking interests” and “working interests” carry the meanings given in section 30-5-304 unless otherwise expressly provided for by specific language in an executed written agreement. In other words, a lease can shift post-production costs onto the royalty — but only if it says so in specific terms.
That single clause explains the puzzle we opened with. Two owners in the same unit, paid different amounts per thousand cubic feet, are usually not the victims of an error. One lease is silent on post-production costs, so the statutory default applies and the royalty rides free of gathering and compression. The other contains an express cost-sharing clause negotiated at signing, perhaps decades ago, and the payor is entitled to deduct under it. Same gas, same well, different contracts.
Two things follow. First, a general phrase such as “market value at the well” is weaker ground for a deduction than a clause that names the costs to be shared, and where the language is ambiguous the Act is read in the owner’s favour. Second, the rest of section 30-5-305(a) is emphatic that a division order cannot do this work: a division order may not alter or amend the lease, is invalid to the extent it tries, and the lease takes precedence. If a deduction first appeared after you signed a division order, that sequence alone is worth questioning. The same point applies whether your interest sits in a Sublette County gas unit or a Campbell County oil well.
Eleven Things Every Wyoming Check Stub Must Show
Section 30-5-305 requires each payment to come with these details, unless they are provided monthly another way:
- The lease, property or well name or identification number.
- The month and year of sales.
- Total barrels or thousand cubic feet sold.
- Price per barrel or per thousand cubic feet.
- Total state severance, ad valorem and other production taxes.
- An itemized list of any other deductions.
- Net value of total sales after deductions.
- Your decimal interest.
- Your share of the value before deductions.
- Your share after deductions.
- An address for questions.
If you send a question to that address by certified mail, the payor must answer by certified mail within 30 days, and a payor that fails to provide the required stub information faces a $100-a-month penalty. A division order cannot quietly change any of this: under the same section, a division order may not alter or amend the lease, and where the two conflict, the lease controls.
When the Money Is Due, and What Late Costs
- The first payment is due no later than six months after the first day of the month following the first sale.
- After that, payment is due within 60 days after the end of the month in which the production is sold.
- Amounts of $100 or less may be paid once a year.
- Late payments carry interest of 18% a year from the due date, and in a lawsuit over payment the prevailing party recovers costs and reasonable attorney fees.
If the payor cannot tell who should be paid, often after a death, the money goes into an interest-bearing escrow at a Wyoming bank. Funds unclaimed after three years are turned over to the State Treasurer as unclaimed property, where heirs can still claim them. Wyoming has no dormant mineral act, so unpaid royalties do not put the mineral title itself at risk.
How Far Back You Can Go
Owners who find a questionable deduction almost always ask the same thing next: how many years of it can I recover? Wyoming’s limitation periods are set in section 1-3-105 of the statutes, and which one applies depends on what you are suing on:
- A claim on the lease itself — a written contract — must be brought within ten years after the cause of action accrues.
- A claim on a liability created by statute, rather than on the contract, carries an eight-year period.
Those are outer limits, not a licence to wait. Each monthly underpayment can start its own clock, so delay quietly erodes the oldest months first, and the practical route is usually the cheap one the Act already gives you: send the question to the address required on the stub by certified mail, get the 30-day written answer, and keep it. If the payor concedes the deduction was wrong, the 18 percent interest and the fee-shifting provision make a negotiated correction attractive to them as well. Because the choice between those two periods turns on how a claim is framed, this is a point to take to a Wyoming oil and gas attorney rather than to settle from an article — including owners in Carbon and Fremont counties, where older leases and long-lived fields make historic deductions more common.
The Taxes That Do Come Off
Production taxes are a different category from deductions, and royalty owners do bear their share. Wyoming’s severance tax is 6% on oil and gas, or 4% on qualifying stripper oil. Counties also levy an ad valorem tax on the full value of production; the statewide average mill levy on mineral production was about 64 mills in 2024, or roughly 6.4% of value. Both appear in the taxes line on your stub. Wyoming has no personal income tax, although federal income tax applies to royalties.
What This Means for Value
A buyer pricing a Wyoming royalty works from your net check, so deductions that should not be there lower an offer for no good reason. Before you sell, compare your stub against the eleven required items, check whether gathering or compression charges are being taken before the gas reaches the market pipeline, and ask the payor about anything you cannot explain. It is often worth doing even if you plan to keep the interest.
We buy Wyoming mineral and royalty interests, including gas royalties in Sublette County and Sweetwater County, the state’s top two gas-producing counties, and Powder River Basin oil royalties in Converse County. For pooling rules, taxes and the rest of the state, see how to sell Wyoming mineral rights, or send us a recent statement and we will go through it with you.
Sources: Wyoming Statutes sections 30-5-301 to 30-5-305; Wyoming Statutes section 1-3-105 (limitation of actions); Cabot Oil & Gas Corp. v. Followill, 2004 WY 80; Wyoming Statutes Title 39 (severance tax); Wyoming Department of Revenue mill levy data as reported by the University of Wyoming (2026). This article is general information, not legal or tax advice.
Photos: Bureau of Land Management Wyoming / Wikimedia Commons, public domain; Carol M. Highsmith, Library of Congress / Wikimedia Commons, public domain; Bob Wick, Bureau of Land Management / Wikimedia Commons, public domain.
MINERAL RIGHTS & ROYALTIES
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