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Royalty Clerk

Texas oil lease · RRC district 7B · Lease 30398

Producing

LUDLUM UNIT

Ludlum Unit is an oil lease in Nolan County, Texas, operated by Extex Operating Company in the Auld (Cisco Sand) field. The Railroad Commission shows 1,179 bbl of oil in the 12 months through Jul 2026.

Oil lease dossier · 2 wells

1,179bbl oil, last 12 months−9% vs prior year
Operator
Extex Operating Company
County
Nolan County
Field
Auld (Cisco Sand)
RRC lease
7B-30398

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Where it sits

This county

Nolan CountyNolanTaylorMitchellFisherJonesCokeScurryNolan County
Nolan County · RRC district 7BOpen Nolan County →
Oil in Jul 2026
86 bbl
Reporting to the state
since Jan 2020
Wells
2
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 9% over the last 12 months

1,179 bbl in the 12 months through Jul 2026, against 1,301 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Last 12 months
Oil output fell 9% over the last 12 monthsMonthly oil production for LUDLUM UNIT, Aug 2023 to Jul 2026. Oil output fell 9% over the last 12 months. 1,179 bbl in the 12 months through Jul 2026, against 1,301 bbl in the 12 months before.Last 12 months: 1,179 bblbbl per month050100150200Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 9% over the last 12 monthsMonthly oil production for LUDLUM UNIT, Aug 2023 to Jul 2026. Oil output fell 9% over the last 12 months. 1,179 bbl in the 12 months through Jul 2026, against 1,301 bbl in the 12 months before.Last 12 monthsbbl per month050100150200Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 30398, district 7B. 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 Mar 2026

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 timeCholla Petroleum, Inc., Jan 2020 to Feb 2026; Extex Operating Company, Mar 2026 to Jul 20262020202120222023202420252026Changed Mar 2026Cholla Petroleum, Inc.Jan 2020 to Feb 2026Extex Operating CompanyMar 2026 to now
Operators of this lease over timeCholla Petroleum, Inc., Jan 2020 to Feb 2026; Extex Operating Company, Mar 2026 to Jul 20262020202120222023202420252026Changed Mar 2026Cholla Petroleum, Inc.Jan 2020 to Feb 2026Extex Operating CompanyMar 2026 to now

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

Wells

2 wells on this lease

Every well the Railroad Commission links to oil lease 30398 in district 7B. The API number is the state’s ID for a well.
Wells on LUDLUM UNIT
API numberWell no.Status
42-353-330941Active
42-353-331022Active

SourceTexas Railroad Commission Wellbore Query, district 7B, lease 30398.

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

    Transoil Marketing, LLC gathers it.

    100% of it, on the list since Apr 1, 2023

  • Gas from oil wells

    Et Gathering & Processing LLC buys it; Energy Transfer Company gathers it.

    Et Gathering & Processing LLC buys it: 100% of it, on the list since Mar 1, 2026 · Energy Transfer Company gathers it: 100% of it, on the list since Mar 1, 2026

Companies that used to be listed: Wtg Gas Processing, L.p. (gathers it, until Aug 1, 2025); Wtg Gas Processing, L.p. (buys it, until Aug 1, 2025); Oasis Transp & Marketing Corp. (gathers it, until Apr 1, 2023); Transoil Marketing, LLC (gathers it, until Nov 1, 2021); Sunoco Ptnrs. Mktg.&terminals LP (gathers it, until Sep 1, 2020).

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

40 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
22 not plugged
Horizontal
0
First completion
Apr 23, 2009
Latest permit
Jun 3, 2009
Wells and acres on the permits for Ludlum Unit
API numberWell no.Acreson the permit
42-353-33102240
42-353-33094140

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.

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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 LUDLUM UNIT 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 LUDLUM UNIT
MonthOil producedbblOil soldbblWTI$ per bblHenry Hub$ per MMBtu
Jul 2026Extex Operating8673$80.46$2.89
Jun 2026Extex Operating7982$84.81$3.15
May 2026Extex Operating9785$102.13$2.94
Apr 2026Extex Operating6784$100.32$2.77
Mar 2026Extex Operating10093$91.38$3.04
Feb 2026Cholla Petroleum,5771$64.51$3.62
Jan 2026Cholla Petroleum,9098$60.04$7.72
Dec 2025Cholla Petroleum,131116$57.97$4.26
Nov 2025Cholla Petroleum,10599$60.06$3.79
Oct 2025Cholla Petroleum,131132$60.89$3.19
Sep 2025Cholla Petroleum,114120$63.96$2.97
Aug 2025Cholla Petroleum,122123$64.86$2.91
Jul 2025Cholla Petroleum,116107$68.39$3.20
Jun 2025Cholla Petroleum,105121$68.17$3.02
May 2025Cholla Petroleum,124112$62.17$3.12
Apr 2025Cholla Petroleum,124114$63.54$3.42
Mar 2025Cholla Petroleum,103112$68.24$4.12
Feb 2025Cholla Petroleum,8982$71.53$4.19
Jan 2025Cholla Petroleum,8286$75.74$4.13
Dec 2024Cholla Petroleum,113131$70.12$3.01
Nov 2024Cholla Petroleum,119103$69.95$2.12
Oct 2024Cholla Petroleum,119128$71.99$2.20
Sep 2024Cholla Petroleum,10299$70.24$2.28
Aug 2024Cholla Petroleum,105106$76.68$1.99
Jul 2024Cholla Petroleum,127117$81.80$2.07
Jun 2024Cholla Petroleum,118117$79.77$2.54
May 2024Cholla Petroleum,133139$80.02$2.12
Apr 2024Cholla Petroleum,127117$85.35$1.60
Mar 2024Cholla Petroleum,133171$81.28$1.49
Feb 2024Cholla Petroleum,138118$77.25$1.72
Jan 2024Cholla Petroleum,129141$74.15$3.18
Dec 2023Cholla Petroleum,150123$71.90$2.52
Nov 2023Cholla Petroleum,130136$77.69$2.71
Oct 2023Cholla Petroleum,128141$85.64$2.98
Sep 2023Cholla Petroleum,119104$89.43$2.64
Aug 2023Cholla Petroleum,137142$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).

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Upload your statements for LUDLUM UNIT. We compare volumes, prices, deductions and timing with the state record and give you the exact question to ask Extex Operating Company.

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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

OperatorExtex Operating CompanyFieldAuld (Cisco Sand)CountyNolan County

Extex Operating Company in Nolan County

All Extex Operating Company leases →

Auld (Cisco Sand) field

All leases in this field →

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 30398, district 7B, 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 LUDLUM UNIT

Who operates the LUDLUM UNIT lease?

The Railroad Commission lists Extex Operating Company (operator number 257062) as the operator of this lease in Nolan County, Texas. The operator history on this page shows earlier operators and when the record changed.

How much has the LUDLUM UNIT lease produced?

The lease reported 1,179 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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