Skip to content
Royalty Clerk

Texas oil lease

Producing

LUDLUM SOUTH UNIT

Ludlum South Unit is an oil lease in Nolan County, Texas, operated by Extex Operating Company in the Auld (Cisco Sand) field.

1 well

1,415bbl oil, last 12 months−30% vs prior year
RRC lease
7B-30493

Is your check right?

Check my statement

Where it sits

This county

Nolan CountyNolanTaylorMitchellFisherJonesCokeScurryNolan County
Nolan County
Oil in Jul 2026
123 bbl
Reporting since
Jan 2020

Checks stopped on this lease?

  • Operator

    Operator changed: Extex Operating Company took over from Cholla Petroleum, Inc. in Mar 2026.

SourceRailroad Commission production, P-5 and P-4 records, data through Jul 2026.

See why checks stop on this lease

Production by month

Oil output fell 30% over the last 12 months

  • Oil (bars)
  • Last 12 months
Oil output fell 30% over the last 12 monthsMonthly oil production for LUDLUM SOUTH UNIT, Aug 2023 to Jul 2026. Oil output fell 30% over the last 12 months. 1,415 bbl in the 12 months through Jul 2026, against 2,022 bbl in the 12 months before.Last 12 months: 1,415 bblbbl per month050100150200250Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 30% over the last 12 monthsMonthly oil production for LUDLUM SOUTH UNIT, Aug 2023 to Jul 2026. Oil output fell 30% over the last 12 months. 1,415 bbl in the 12 months through Jul 2026, against 2,022 bbl in the 12 months before.Last 12 monthsbbl per month050100150200250Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

No gas disposition reported for this lease

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

Who has run this lease

The operator changed once, most recently in Mar 2026

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, through Jul 2026.

1 well on this lease

Wells on LUDLUM SOUTH UNIT
API numberWell no.Status
42-353-331153Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Transoil Marketing, LLCOilGathers100Apr 1, 2023–
Et Gathering & Processing LLCCasinghead gasBuys100Mar 1, 2026–
Energy Transfer CompanyCasinghead gasGathers100Mar 1, 2026–
Wtg Gas Processing, L.p.Casinghead gasGathers100Apr 1, 2023Aug 1, 2025
Wtg Gas Processing, L.p.Casinghead gasBuys100Apr 1, 2023Aug 1, 2025
Oasis Transp & Marketing Corp.OilGathers100Nov 1, 2021Apr 1, 2023
Transoil Marketing, LLCOilGathers100Sep 1, 2020Nov 1, 2021
Sunoco Ptnrs. Mktg.&terminals LPOilGathers100Jan 25, 2010Sep 1, 2020

SourceRailroad Commission Form P-4 file, Sep 24, 2026 (source).

20 acres on the newest permit

  • Worth asking

    A Rule 37 case is listed

    The RRC permit records list a Rule 37 case. This does not establish your royalty share. Ask for the permit and unit plat for your well.

Check your decimal on this lease
Permits for Ludlum South Unit
API numberWell no.Acreson the permit
42-353-33115320

SourceRailroad Commission drilling permits, Oct 3, 2026 (source 1, source 2).

Estimate your royalty

36 months, newest first

Ledger for LUDLUM SOUTH UNIT
MonthOil producedbblOil soldbblWTI$/bblHenry Hub$/MMBtu
Jul 2026Extex Operating123105$80.46$2.89
Jun 2026Extex Operating113118$84.81$3.15
May 2026Extex Operating141123$102.13$2.94
Apr 2026Extex Operating98122$100.32$2.77
Mar 2026Extex Operating140134$91.38$3.04
Feb 2026Cholla Petroleum,8532$64.51$3.62
Jan 2026Cholla Petroleum,036$60.04$7.72
Dec 2025Cholla Petroleum,83114$57.97$4.26
Nov 2025Cholla Petroleum,167158$60.06$3.79
Oct 2025Cholla Petroleum,212212$60.89$3.19
Sep 2025Cholla Petroleum,181148$63.96$2.97
Aug 2025Cholla Petroleum,72105$64.86$2.91
Jul 2025Cholla Petroleum,154151$68.39$3.20
Jun 2025Cholla Petroleum,167194$68.17$3.02
May 2025Cholla Petroleum,198177$62.17$3.12
Apr 2025Cholla Petroleum,193178$63.54$3.42
Mar 2025Cholla Petroleum,165180$68.24$4.12
Feb 2025Cholla Petroleum,144132$71.53$4.19
Jan 2025Cholla Petroleum,131137$75.74$4.13
Dec 2024Cholla Petroleum,180210$70.12$3.01
Nov 2024Cholla Petroleum,190164$69.95$2.12
Oct 2024Cholla Petroleum,190205$71.99$2.20
Sep 2024Cholla Petroleum,162149$70.24$2.28
Aug 2024Cholla Petroleum,148157$76.68$1.99
Jul 2024Cholla Petroleum,203187$81.80$2.07
Jun 2024Cholla Petroleum,190188$79.77$2.54
May 2024Cholla Petroleum,213209$80.02$2.12
Apr 2024Cholla Petroleum,156147$85.35$1.60
Mar 2024Cholla Petroleum,178230$81.28$1.49
Feb 2024Cholla Petroleum,187169$77.25$1.72
Jan 2024Cholla Petroleum,199221$74.15$3.18
Dec 2023Cholla Petroleum,241197$71.90$2.52
Nov 2023Cholla Petroleum,208218$77.69$2.71
Oct 2023Cholla Petroleum,205190$85.64$2.98
Sep 2023Cholla Petroleum,10797$89.43$2.64
Aug 2023Cholla Petroleum,137167$81.39$2.58

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Oct 2, 2026.

How to check your stub against this lease Checks stopped on this lease? See the likely reasons

Do your checks match this lease?

Nearby

Extex Operating Company in Nolan County

All Extex Operating Company leases →

Auld (Cisco Sand) field

All leases in this field →

Leases within 10 km

Drilling permits within 10 km