Your gas well is producing, the checks are arriving, and the numbers do not add up to what you expected. You are not imagining it. Pennsylvania sets a floor on your royalty, but the law also lets producers subtract certain costs before they pay you. Here is how to read your own check.
The One-Eighth Floor
A Pennsylvania oil and gas lease is invalid unless it guarantees the landowner a royalty of at least one-eighth (12.5%) of all the oil and gas produced. That rule comes from the Guaranteed Minimum Royalty Act, 58 P.S. § 33.3. A lease that promises less than one-eighth is not enforceable as written.
One-eighth is the number the statute protects. Every valid lease has to leave you with at least that share of production. If a company hands you a lease that pays a flat sum, or a fraction below one-eighth, the guarantee is not met and the lease has a problem. This is the single most important line in any lease I review for a landowner.
It is a floor, not a ceiling. The statute sets the minimum. Nothing stops you from negotiating a larger royalty, and in strong markets landowners have signed leases at one-sixth, one-fifth, or higher. If someone tells you "the law says one-eighth," they are quoting the bottom of the range, not the limit. What you can get depends on your acreage, the play, and how much bargaining power you have at the table.
Take the price the gas sold for, multiply by one-eighth, and your check is smaller than that math predicts. The reason is where Pennsylvania measures your royalty. In Kilmer v. Elexco Land Services, the Pennsylvania Supreme Court held that a royalty is valued at the wellhead, not at the point of final sale. Gas is worth less at the wellhead than after it has been gathered, compressed, processed, and moved to market. The court approved the net-back method: the producer starts from the sale price, subtracts a proportionate share of the cost of getting the gas to market, and pays you one-eighth of what is left. Done correctly, that still meets the one-eighth floor.
Post-production costs are the expenses of turning raw gas at the wellhead into a marketable product and moving it to the buyer: gathering, compression, dehydration, processing, and transportation. Under Kilmer, a producer may charge your royalty a proportionate share of these costs, so long as your lease permits it and the net still clears one-eighth.
There is a limit that works in your favor. A federal court applying Pennsylvania law in Pollock v. Energy Corp. of America drew the line at the point where title to the gas passes to third-party buyers. Costs the producer runs up after it has already sold the gas are not chargeable back to you. If your stub shows deductions piling up past the sale point, that is worth a closer look.
Yes. The words in your royalty clause decide whether deductions are allowed at all. A clause that says "at the well" points toward the net-back deductions Kilmer allows. A clause that promises "gross proceeds" points the other way. When a lease mixes the two, the meaning is genuinely unsettled.
⚠ An Open Question in Pennsylvania
In Dressler Family v. PennEnergy Resources, the Superior Court held that a clause combining "gross proceeds" with "at the well" is ambiguous, so a producer cannot automatically apply net-back deductions; the lease language and the parties' intent control. The Pennsylvania Supreme Court agreed to review that decision on February 15, 2023. As of July 2026 the court has not issued a merits ruling, so whether Pennsylvania is an "at-the-well" state or a "first-marketable-product" state is not settled. If your clause has this kind of mixed wording, your deductions may be contestable. Do not assume the company's reading is the final word.
Pennsylvania law tells the producer what it has to show you. For unconventional (shale) wells the disclosures live in 58 P.S. § 35.3, and for conventional wells in 58 P.S. § 35.2. On the stub or an attachment you are entitled to see:
If your stub is a bare dollar figure with none of this detail, the producer is not giving you what the statute requires. The same law allows a producer to remit only once a year when a full year of proceeds comes to under $100, and to hold payment where record title is unmarketable, an interest is in genuine dispute, or an owner cannot be located.
Start with three checks. First, confirm your decimal interest on the stub matches your acreage and your fraction under the lease; a wrong decimal underpays you every single month. Second, add up the deductions and ask whether your lease actually allows them and whether any of them fall after the sale point. Third, compare the price used against what the gas realistically sold for. Underpayment usually hides in one of those three lines, not in the royalty fraction itself. Keep your stubs. A pattern across several months tells the story a single check cannot.
Here is a maneuver the courts have already shut down. A lease recites a one-eighth royalty, which looks fine, then a separate document assigns part of that royalty back to the company, quietly dropping your real net below one-eighth. In Southwestern Energy v. Forest Resources, the Superior Court refused to let that work. Pennsylvania reads the agreements together, as a whole, and an assignment-back that pushes your net under one-eighth violates the Guaranteed Minimum Royalty Act. If you were asked to sign a royalty assignment alongside your lease, that paperwork deserves a hard look.
Most royalty disputes are decided by reading the lease clause, the division order, and the check stub against each other, then holding the producer to the words it agreed to. I help Pennsylvania landowners audit their royalty statements, decode the deductions, confirm the decimal interest, and press for a correction when the numbers are wrong. If your clause is the ambiguous kind now before the Supreme Court, I will tell you where you stand and what a ruling could change.
The Pennsylvania statutes and cases behind this page:
This page is general information about Pennsylvania law, not legal advice about your specific lease, and the law can change. For advice on your own tract and royalty statements, speak with a lawyer.
Statutory content on this page was last verified against Pennsylvania statutes (20 Pa.C.S.; 72 P.S. Art. XXI): Jul. 2026. If you are reading this significantly after that date, confirm key provisions with current statute text or contact our office.
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