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Royalty Clerk

Texas oil lease · RRC district 8A · Lease 66138

Producing

SWENSON

Swenson is an oil lease in Cottle County, Texas, operated by Petex in the Prothro (Canyon) field. The Railroad Commission shows 3,415 bbl of oil in the 12 months through Jul 2026.

Oil lease dossier · 1 well

3,415bbl oil, last 12 months−16% vs prior year
Operator
Petex
County
Cottle County
Field
Prothro (Canyon)
RRC lease
8A-66138

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Where it sits

This county

Cottle CountyCottleChildressHallMotleyFoardHardemanCottle County
Cottle County · RRC district 8AOpen Cottle County →
Oil in Jul 2026
296 bbl
Reporting to the state
since Jan 2020
Wells
1
Data through
Jul 2026

Production

Month by month, from the state record

What the Railroad Commission says this oil lease produced. Oil is in barrels (bbl). Gas is in thousand cubic feet (mcf).

Oil output fell 16% over the last 12 months

3,415 bbl in the 12 months through Jul 2026, against 4,079 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Last 12 months
Oil output fell 16% over the last 12 monthsMonthly oil production for SWENSON, Aug 2023 to Jul 2026. Oil output fell 16% over the last 12 months. 3,415 bbl in the 12 months through Jul 2026, against 4,079 bbl in the 12 months before.Last 12 months: 3,415 bblbbl per month0100200300400500Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 16% over the last 12 monthsMonthly oil production for SWENSON, Aug 2023 to Jul 2026. Oil output fell 16% over the last 12 months. 3,415 bbl in the 12 months through Jul 2026, against 4,079 bbl in the 12 months before.Last 12 monthsbbl per month0100200300400500Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 66138, district 8A. Reported through Jul 2026. The state revises recent months.

Gas disposition

Where the gas went

Every month the operator tells the state where each mcf of gas went, using a code. The code decides how your gas is paid.

No gas disposition reported for this lease

The operator has not reported where the gas went in the months we hold.

Operator history

Who has run this lease

The operator runs the wells and pays your royalty. When the operator changes, payments often slip for a month or two.

The operator changed once, most recently in Jul 2022

If your statements skip or shrink around a change, ask the new operator's owner relations department whether the month is in suspense.

Operators of this lease over timeBettis, Boyle & Stovall, Jan 2020 to Jun 2022; Petex, Jul 2022 to Jul 20262020202120222023202420252026Changed Jul 2022Bettis, Boyle & StovallJan 2020 to Jun 2022PetexJul 2022 to now
Operators of this lease over timeBettis, Boyle & Stovall, Jan 2020 to Jun 2022; Petex, Jul 2022 to Jul 20262020202120222023202420252026Changed Jul 2022Bettis, Boyle & StovallJan 2020 to Jun 2022PetexJul 2022 to now

SourceTexas Railroad Commission Production Data Query, operator by month. Reported through Jul 2026.

Wells

1 well on this lease

Every well the Railroad Commission links to oil lease 66138 in district 8A. The API number is the state’s ID for a well.
Wells on SWENSON
API numberWell no.Status
42-101-304741028Active

SourceTexas Railroad Commission Wellbore Query, district 8A, lease 66138.

Who buys and gathers

Who moves and buys this lease's production

The operator files a Form P-4 with the Railroad Commission naming the companies authorised to gather and buy the oil and gas. The buyer's price is the one your royalty is figured on.

  • Oil

    Energy Trans Crude Marketing LLC gathers it.

    100% of it, on the list since Sep 1, 2022

Companies that used to be listed: Sunoco Ptnrs. Mktg.&terminals LP (gathers it, until Sep 1, 2022).

SourceRailroad Commission of Texas, Form P-4 file, dated Sep 24, 2026 (source). A listed company is authorised to move or buy the production; the state does not say what it paid.

Who buys my oil and gasIs my oil price fair?

Unit and wells

138.18 acres on the newest permit

Acres and wells as the operator filed them on its Railroad Commission drilling permits. Your decimal is your net acres over the unit acres, so this is the number to hold your division order against.
Wells on the permits
11 not plugged
Horizontal
0
First completion
Feb 27, 1988
Latest permit
Nov 20, 1987
Wells and acres on the permits for Swenson
API numberWell no.Acreson the permit
42-101-304741028138.18

SourceRailroad Commission of Texas, drilling permits and wellbore file, Sep 26, 2026 (source 1, source 2). The acres are what the operator filed; they are not a survey.

Check my decimal against the unit

Estimator

Estimate your royalty for this lease

A rough check before you look at a statement: the state volumes times your decimal, priced at WTI and Henry Hub.

Estimator

What could your check be?

Your decimal interest is the small number on your division order that says what share of the whole lease (8/8ths) is yours. Type it in and we apply it to what the state says SWENSON sold each month.

For example 0.00097656, or a fraction like 1/1024.

Dollars per barrel. Your statements show the gap your operator uses. Leave 0 to price oil at WTI.

Your estimate appears here

Enter your decimal to see an estimated royalty for each of the last 12 months this lease reported. Nothing you type leaves your browser.

An estimate, not your check

It ignores gathering and processing fees, taxes, plant products and the price your operator actually gets, so your statement will differ. Use it as a ceiling to compare against.

Ledger

36 months, newest first

Compare these numbers with your statements. Your share of a month is the “Oil sold” volume times your decimal. Scroll sideways on a phone.
Monthly production, disposition and prices for SWENSON
MonthOil producedbblOil soldbblWTI$ per bblHenry Hub$ per MMBtu
Jul 2026Petex296348$80.46$2.89
Jun 2026Petex234173$84.81$3.15
May 2026Petex346358$102.13$2.94
Apr 2026Petex349359$100.32$2.77
Mar 2026Petex279182$91.38$3.04
Feb 2026Petex00$64.51$3.62
Jan 2026Petex250352$60.04$7.72
Dec 2025Petex309177$57.97$4.26
Nov 2025Petex352548$60.06$3.79
Oct 2025Petex401363$60.89$3.19
Sep 2025Petex230183$63.96$2.97
Aug 2025Petex369361$64.86$2.91
Jul 2025Petex320355$68.39$3.20
Jun 2025Petex380369$68.17$3.02
May 2025Petex400359$62.17$3.12
Apr 2025Petex346360$63.54$3.42
Mar 2025Petex403542$68.24$4.12
Feb 2025Petex286176$71.53$4.19
Jan 2025Petex291355$75.74$4.13
Dec 2024Petex341184$70.12$3.01
Nov 2024Petex322365$69.95$2.12
Oct 2024Petex342357$71.99$2.20
Sep 2024Petex332360$70.24$2.28
Aug 2024Petex316361$76.68$1.99
Jul 2024Petex263180$81.80$2.07
Jun 2024Petex289362$79.77$2.54
May 2024Petex298357$80.02$2.12
Apr 2024Petex291179$85.35$1.60
Mar 2024Petex281360$81.28$1.49
Feb 2024Petex282180$77.25$1.72
Jan 2024Petex245176$74.15$3.18
Dec 2023Petex248362$71.90$2.52
Nov 2023Petex290357$77.69$2.71
Oct 2023Petex248175$85.64$2.98
Sep 2023Petex880$89.43$2.64
Aug 2023Petex93178$81.39$2.58

No report filed More than 3% of gas flared

SourceVolumes: Texas Railroad Commission Production Data Query, reported through Jul 2026. Prices: EIA WTI Cushing spot and Henry Hub spot, monthly, through Aug 2026. “Gas sold” is gas sent to a transmission line (code 2) or a plant (code 3).

Check your statements

Do your checks match this lease?

Upload your statements for SWENSON. We compare volumes, prices, deductions and timing with the state record and give you the exact question to ask Petex.

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  • Your share of the barrels and mcf
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  • Fees taken on gas
  • Late payment interest

Around this lease

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Everything on this page connects to the operator, field and county records. Start from any of them.

This lease belongs to

OperatorPetexFieldProthro (Canyon)CountyCottle County

Petex in Cottle County

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Prothro (Canyon) field

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Leases within 10 km

Found by the location of their wells.

Drilling permits within 10 km

How to read this page

Questions owners ask

What is a decimal interest?

It is your share of the whole lease, written as a decimal. A 1/4 royalty on 5 net acres in a 1,280-acre unit is 1/4 × 5 ÷ 1,280 = 0.00097656. Your division order states yours.

How do I use this page to check a royalty check?

Take the “Oil sold” volume for the month the check covers and multiply it by your decimal. The answer should match the barrels on your statement. If it does not, upload the statement and we will show where the two differ.

Why is the newest month Jul 2026?

The Railroad Commission publishes production two to three months after the fact and revises recent months. We re-pull the latest three months on every update.

Does this page show what my check should be?

No. It shows what the state recorded. Prices, fees and taxes depend on your lease and on what your operator gets for the oil and gas. The estimator gives a ceiling to compare against.

Sources and method

Where these numbers come from

  • Production and disposition by month: Texas Railroad Commission Production Data Query, oil lease 66138, district 8A, reported through Jul 2026.
  • Wells: Texas Railroad Commission Wellbore Query.
  • Prices: U.S. Energy Information Administration, WTI Cushing spot and Henry Hub spot, monthly.
  • Page updated Sep 28, 2026.

We show the state’s numbers as filed. Where the state has no report for a month, we say so instead of guessing.

FAQ

Questions about SWENSON

Who operates the SWENSON lease?

The Railroad Commission lists Petex (operator number 659782) as the operator of this lease in Cottle County, Texas. The operator history on this page shows earlier operators and when the record changed.

How much has the SWENSON lease produced?

The lease reported 3,415 bbl of oil in the last 12 months through Jul 2026. Monthly figures for 36 months are in the ledger on this page, taken from the Railroad Commission's production data.

Does this page show who owns the royalty?

No. Railroad Commission records show who operates a lease and what it reported, not who owns the minerals or receives royalty. Your division order and royalty stub name the lease and your decimal interest.

How do I check my royalty stub against this lease?

Multiply the lease's volume for a month by your decimal interest and compare it with the barrels and mcf on your stub for the same month. The two are seldom identical, since sales and reporting months can differ, but a large gap is worth a question to the operator.

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