A Pennsylvania landowner may receive a royalty statement showing a well name that does not match an earlier unit document. A new plat may show one horizontal well passing through more than one production unit. The operator may call it a “cross-unit well” or a “traversing well.” The landowner’s first questions are usually straightforward: Is that permitted, and how are my royalties calculated?
Pennsylvania law permits cross-unit drilling for unconventional wells in specified circumstances. But the statute does not make every well location, allocation or surface use automatically correct. The operator must have the right to drill on the separate units, the lease must not expressly prohibit the traversing well, and production must be reasonably allocated. The complete lease and addendum still matter.
What is cross-unit drilling?
Cross-unit drilling occurs when one horizontal wellbore passes through more than one existing production unit. The surface well pad may be located in one unit, while the lateral continues underground into another unit.
That is different from creating a unit. Pooling or unitization generally combines leasehold or mineral interests into a production unit. Cross-unit drilling uses one well to traverse two or more units that already exist. The terms are related, but they are not interchangeable.
This distinction matters when reading a lease. A clause addressing pooling may not answer every cross-unit question. A landowner should review the granting clause, pooling and unitization language, addendum, surface provisions, unit declarations and any later amendments together.
What Pennsylvania law says
Section 2.2 of Pennsylvania’s Oil and Gas Lease Act addresses cross-unit drilling for unconventional wells. If an operator has the right to drill an oil or gas well on separate units, the operator may drill and produce a horizontal well that traverses more than one unit when two conditions are met:
- The operator reasonably allocates production to or among the units in a manner it reasonably determines is attributable to each unit. The statute permits acreage-based allocation when it has a reasonable correlation to the portion of the horizontal wellbore in each unit.
- The traversing well is not expressly prohibited by the terms of a lease.
The statute also contains important limits. It does not authorize drilling on property that is not subject to a valid lease or royalty agreement. It also does not automatically expand or reduce the operator’s existing surface rights for work related to an existing unit or a well drilled between units.
Those limits are important. The existence of a cross-unit statute does not answer whether the operator has a valid lease, whether a particular addendum restricts the activity, whether the allocation is reasonable, or whether additional surface operations are authorized.
The lease and addendum remain central
The first document to examine is the complete signed lease, including every addendum, amendment, ratification and memorandum. Do not rely only on a summary, an unsigned form or the operator’s description of the agreement.
Look for provisions addressing:
- the formations and depths covered by the lease;
- pooling, unitization and unit amendments;
- cross-unit or allocation wells;
- requirements for landowner notice or consent;
- royalty allocation and measurement;
- Pugh clauses and acreage or depth releases;
- well pads, roads and other surface operations; and
- which provision controls if the printed lease conflicts with the addendum.
The words “expressly prohibited” in the statute make the precise wording important. A consent clause deserves particular attention. Read what requires consent, who must give it and whether the form in front of you changes those terms.
How should production be allocated?
Cross-unit drilling creates an additional allocation question. Production from one well must be attributed among the units the well traverses. Then the owner’s royalty within the applicable unit must be calculated under the lease and the unit records.
The Pennsylvania statute uses a reasonableness standard. It allows acreage-based allocation among multiple units only when that allocation reasonably correlates with the portion of the horizontal wellbore in each unit. It does not say that every allocation method or every decimal supplied by an operator is correct.
A useful review may require more than a royalty statement. Ask for or locate the records that identify:
- the well name and API number;
- each unit the well traverses;
- the original and amended unit declarations;
- the unit plats and acreage schedules;
- the operator’s allocation method;
- the portion of the completed lateral attributed to each unit;
- the owner’s credited acreage in the relevant unit;
- the lease royalty rate;
- the owner decimal shown on the statement or division order; and
- any change in the decimal after the cross-unit well began producing.
Not every requested record will necessarily be available from the same source. Unit declarations may be recorded in the county. Well and production information may be found in public regulatory records. Other calculations may need to be requested from the operator or payor. The goal is to connect the well, units, acreage and royalty decimal with documents rather than assumptions.
What does this look like on a royalty statement?
Suppose a well produces 10,000 units of gas in a month and the operator attributes 40% to your unit. That is 4,000 units of production allocated to your unit, not a 40% royalty for you. Your own share is a separate calculation under your lease and the unit records. Ask for both steps. The numbers here illustrate the arithmetic, not the correct allocation for any particular well.
A landowner may see a new well added to an existing statement, a separate statement from another payor, or a changed owner decimal. A unit amendment may also change the acreage used in the calculation.
Compare statements before and after the cross-unit well began producing. Note whether the well name, API number, production month, unit, volume, owner decimal and price information are consistent. The firm’s Royalty Statement Reviews page explains why the statement should be read with the lease and supporting records.
Surface rights are a separate question
A cross-unit well may use an existing pad or road, but it may also lead to a request to widen a road, expand a pad, add water lines, stage equipment or use another part of the property. Section 2.2 says that it does not automatically expand or diminish the operator’s current surface rights.
That means the operator’s surface authority must be found in the lease, addendum, surface use agreement or other applicable document. A landowner should not assume that permission to drill beneath multiple units automatically authorizes every new surface activity.
Do not sign a corrective document without understanding it
An operator may ask the owner to sign a division order, unit amendment, ratification, consent or corrective instrument after a cross-unit well is planned or completed. The document may confirm a decimal, approve a unit, address surface use or change existing lease language.
Ask why the document is needed and what happens if it is not signed. Compare it with the existing lease and addendum. Determine whether it merely confirms an existing right or gives the operator a new one. A document presented as administrative may affect royalties, held-by-production claims, acreage releases or future disputes.
A practical review checklist
If a new statement or unit map suggests cross-unit drilling, gather:
- the complete lease and all addenda;
- amendments, ratifications and division orders;
- all unit declarations, amendments, plats and acreage exhibits;
- royalty statements from before and after the new well;
- the well name and API number;
- operator letters or explanations of the allocation;
- surface use, roadway or well pad agreements; and
- any new document the company wants signed.
Prepare a short chronology: when the units were created, when the well was permitted and completed, when production began, when the decimal changed, and when the operator sent any new document. Our overview of unit declarations, unitization and pooled acreage provides useful background for that review.
Talk with a lawyer who represents Pennsylvania landowners
I have practiced law since 1995 and have more than 18 years of oil and gas experience. The Clark Law Firm, PC represents landowners and oil and gas rights owners only. We do not represent gas or pipeline companies.
If a cross-unit well appears on your royalty statement, your owner decimal changed, or a company asks you to sign a unit-related document, we can review the lease, addendum, unit records, allocation information and royalty statements. The objective is to identify the rights already granted, test the company’s explanation against the documents, and recommend an informed next step.
Contact Attorney Douglas A. Clark at 570-307-0702.
The Clark Law Firm, PC
1563 Main St.
Peckville, PA 18452
This article provides general information, not legal advice for a particular lease, unit, royalty calculation or dispute. Contacting the firm does not by itself create an attorney-client relationship.
