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Royalty Clerk

Texas oil lease · RRC district 06 · Lease 10191

Producing

CHALMERS, A. A.

Chalmers, A. A. is an oil lease in Wood County, Texas, operated by Southwest Operating, Inc.-Tyler in the Quitman, Se (Paluxy) field. The Railroad Commission shows 809 bbl of oil in the 12 months through Jul 2026.

Oil lease dossier · 1 well

809bbl oil, last 12 months+18% vs prior year
Operator
Southwest Operating, Inc.-Tyler
County
Wood County
Field
Quitman, Se (Paluxy)
RRC lease
06-10191

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Where it sits

This county

Wood CountyWoodFranklinVan ZandtHuntGreggUpshurMorrisHopkinsSmithDeltaTitusCampRainsWood County
Wood County · RRC district 06Open Wood County →
Oil in Jul 2026
44 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 rose 18% over the last 12 months

809 bbl in the 12 months through Jul 2026, against 683 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Last 12 months
Oil output rose 18% over the last 12 monthsMonthly oil production for CHALMERS, A. A., Aug 2023 to Jul 2026. Oil output rose 18% over the last 12 months. 809 bbl in the 12 months through Jul 2026, against 683 bbl in the 12 months before.Last 12 months: 809 bblbbl per month050100150200Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output rose 18% over the last 12 monthsMonthly oil production for CHALMERS, A. A., Aug 2023 to Jul 2026. Oil output rose 18% over the last 12 months. 809 bbl in the 12 months through Jul 2026, against 683 bbl in the 12 months before.Last 12 monthsbbl per month050100150200Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 10191, district 06. 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.

Southwest Operating, Inc.-Tyler has reported this lease for the whole period

No change of operator in the months we hold.

Operators of this lease over timeSouthwest Operating, Inc.-Tyler, Jan 2020 to Jul 20262020202120222023202420252026Southwest Operating, Inc.-Tyl…Jan 2020 to nowthrough Jul 2026
Operators of this lease over timeSouthwest Operating, Inc.-Tyler, Jan 2020 to Jul 20262020202120222023202420252026Southwest Operating, Inc.-TylerJan 2020 to nowthrough Jul 2026

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 10191 in district 06. The API number is the state’s ID for a well.
Wells on CHALMERS, A. A.
API numberWell no.Status
42-499-307231Active

SourceTexas Railroad Commission Wellbore Query, district 06, lease 10191.

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

    Eastex Crude Company, LLC gathers it.

    100% of it, on the list since Sep 1, 2026

Companies that used to be listed: Plains Marketing, L.p. (gathers it, until Sep 1, 2026).

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

107 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
Nov 15, 1979
Latest permit
Sep 10, 1979
Wells and acres on the permits for Chalmers, A. A.
API numberWell no.Acreson the permit
42-499-307231107

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 CHALMERS, A. A. 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 CHALMERS, A. A.
MonthOil producedbblOil soldbblWTI$ per bblHenry Hub$ per MMBtu
Jul 2026Southwest Operating,440$80.46$2.89
Jun 2026Southwest Operating,54147$84.81$3.15
May 2026Southwest Operating,680$102.13$2.94
Apr 2026Southwest Operating,79158$100.32$2.77
Mar 2026Southwest Operating,690$91.38$3.04
Feb 2026Southwest Operating,800$64.51$3.62
Jan 2026Southwest Operating,65150$60.04$7.72
Dec 2025Southwest Operating,650$57.97$4.26
Nov 2025Southwest Operating,79171$60.06$3.79
Oct 2025Southwest Operating,760$60.89$3.19
Sep 2025Southwest Operating,710$63.96$2.97
Aug 2025Southwest Operating,59152$64.86$2.91
Jul 2025Southwest Operating,730$68.39$3.20
Jun 2025Southwest Operating,69158$68.17$3.02
May 2025Southwest Operating,640$62.17$3.12
Apr 2025Southwest Operating,450$63.54$3.42
Mar 2025Southwest Operating,52157$68.24$4.12
Feb 2025Southwest Operating,550$71.53$4.19
Jan 2025Southwest Operating,400$75.74$4.13
Dec 2024Southwest Operating,50140$70.12$3.01
Nov 2024Southwest Operating,560$69.95$2.12
Oct 2024Southwest Operating,63154$71.99$2.20
Sep 2024Southwest Operating,380$70.24$2.28
Aug 2024Southwest Operating,780$76.68$1.99
Jul 2024Southwest Operating,75165$81.80$2.07
Jun 2024Southwest Operating,420$79.77$2.54
May 2024Southwest Operating,65177$80.02$2.12
Apr 2024Southwest Operating,350$85.35$1.60
Mar 2024Southwest Operating,440$81.28$1.49
Feb 2024Southwest Operating,61155$77.25$1.72
Jan 2024Southwest Operating,850$74.15$3.18
Dec 2023Southwest Operating,820$71.90$2.52
Nov 2023Southwest Operating,370$77.69$2.71
Oct 2023Southwest Operating,3153$85.64$2.98
Sep 2023Southwest Operating,1350$89.43$2.64
Aug 2023Southwest Operating,112166$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

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Upload your statements for CHALMERS, A. A.. We compare volumes, prices, deductions and timing with the state record and give you the exact question to ask Southwest Operating, Inc.-Tyler.

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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

OperatorSouthwest Operating, Inc.-TylerFieldQuitman, Se (Paluxy)CountyWood County

Southwest Operating, Inc.-Tyler in Wood County

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Quitman, Se (Paluxy) field

No other producing leases in this field are in our data yet.

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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 10191, district 06, 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.