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Producing

MUMME-CEARLEY UNIT

Mumme-Cearley Unit is an oil lease in La Salle County, Texas, operated by Verdun Oil Ef II LLC in the Eagleville (Eagle Ford-1) field.

1 well

6,762bbl oil, last 12 months−15% vs prior year
Operator
Verdun Oil Ef II LLC
County
La Salle County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-16033

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Where it sits

This county

La Salle CountyLa SalleZavalaAtascosaMcMullenDimmitFrioLa Salle County
La Salle County
Gas, last 12 months
10,053 mcf
Oil in Jul 2026
552 bbl

Checks stopped on this lease?

  • Operator

    Operator changed: Verdun Oil Ef II LLC took over from Ep Energy E&P Company, LLC in Mar 2025.

  • P-5

    The previous operator's P-5 registration is listed as inactive since Nov 17, 2025 (last P-5 filed Mar 20, 2025).

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 15% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 15% over the last 12 monthsMonthly oil production and gas for MUMME-CEARLEY UNIT, Aug 2023 to Jul 2026. Oil output fell 15% over the last 12 months. 6,762 bbl in the 12 months through Jul 2026, against 7,933 bbl in the 12 months before.Last 12 months: 6,762 bblbbl per monthmcf per month002001,0004002,0006003,0008004,0001,0005,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 15% over the last 12 monthsMonthly oil production and gas for MUMME-CEARLEY UNIT, Aug 2023 to Jul 2026. Oil output fell 15% over the last 12 months. 6,762 bbl in the 12 months through Jul 2026, against 7,933 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002001,0004002,0006003,0008004,0001,0005,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Feb 2026 the lease's gas goes to a transmission line instead of lease fuel

Flaring peaked at 10.1% of the gas in May 2026.

  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
Since Feb 2026 the lease's gas goes to a transmission line instead of lease fuelShare of MUMME-CEARLEY UNIT gas by disposition code each month, Aug 2023 to Jul 2026. Since Feb 2026 the lease's gas goes to a transmission line instead of lease fuel. Flaring peaked at 10.1% of the gas in May 2026.Share of the lease’s gas by disposition code, per month0%50%100%Feb 2026: fuel to lineFlared 10.1%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Feb 2026 the lease's gas goes to a transmission line instead of lease fuelShare of MUMME-CEARLEY UNIT gas by disposition code each month, Aug 2023 to Jul 2026. Since Feb 2026 the lease's gas goes to a transmission line instead of lease fuel. Flaring peaked at 10.1% of the gas in May 2026.Share of gas by disposition code0%50%100%Feb 26: fuel to lineFlared 10.1%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    57% · 5,777 mcf

  • Lease fuel (1)

    38% · 3,782 mcf

  • Flared (4)

    4.9% · 494 mcf

4.9% of the gas flared in the last 12 months. 16 months above 3%.

Who has run this lease

The operator changed 2 times, most recently in Mar 2025

Operators of this lease over timeEp Energy E&P Company, L.P., Jan 2020 to Apr 2022; Ep Energy E&P Company, LLC, May 2022 to Feb 2025; Verdun Oil Ef II LLC, Mar 2025 to Jul 20262020202120222023202420252026Changed May 2022Changed Mar 2025Ep Energy E&P Company, L.P.Jan 2020 to Apr 2022Ep Energy E&P Company, LLCMay 2022 to Feb 2025Verdun Oil Ef II LLCMar 2025 to now
Operators of this lease over timeEp Energy E&P Company, L.P., Jan 2020 to Apr 2022; Ep Energy E&P Company, LLC, May 2022 to Feb 2025; Verdun Oil Ef II LLC, Mar 2025 to Jul 20262020202120222023202420252026Changed May 2022Changed Mar 2025Ep Energy E&P Company, L.P.Jan 2020 to Apr 2022Ep Energy E&P Company, LLCMay 2022 to Feb 2025Verdun Oil Ef II LLCMar 2025 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on MUMME-CEARLEY UNIT
API numberWell no.Status
42-283-3321535HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Eastex Crude CompanyOilGathers17May 1, 2021–
Gulfmark Energy, Inc.OilGathers17May 1, 2021–
Mission Petroleum Carriers, Inc.OilGathers17May 1, 2021–
Tartan Oil LLCOilGathers17May 1, 2021–
Camino Real Gathering Co. L.l.c.OilGathers16May 1, 2021–
Firebird Bulk Carriers, Inc.OilGathers16May 1, 2021–
Bp Energy Co.Casinghead gasBuys15May 1, 2021–
Enterprise Products Operating LLCCasinghead gasBuys15May 1, 2021–
Marathon Petroleum Company LPCasinghead gasBuys15May 1, 2021–
Tenaska Marketing VenturesCasinghead gasBuys15May 1, 2021–
Conocophillips CompanyCasinghead gasBuys10May 1, 2021–
Dcp Operating Company, LPCasinghead gasBuys10May 1, 2021–
Enerfin Field Services LLCCasinghead gasBuys10May 1, 2021–
Kinder Morgan Texas Pipeline LLCCasinghead gasBuys10May 1, 2021–
Eagle Ford Gathering LLCCasinghead gasGathers34May 1, 2021–
Camino Real Gathering Co. L.l.c.Casinghead gasGathers33May 1, 2021–
Southcross Gathering Ltd.Casinghead gasGathers33May 1, 2021–
Dcp Operating Company, LPCasinghead gasGathers100Feb 1, 2018May 1, 2021
Dcp Operating Company, LPCasinghead gasBuys100Feb 1, 2018May 1, 2021
Eastex Crude CompanyOilGathers50Feb 1, 2018May 1, 2021
Shell Trading (Us) CompanyOilGathers50Feb 1, 2018May 1, 2021

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

Who buys my oilOil price check

480 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 Mumme-Cearley Unit
API numberWell no.Acreson the permit
42-283-3321535H480

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

Unit decimal checker

Estimate your royalty

36 months, newest first

Ledger for MUMME-CEARLEY UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Verdun Oil55245185949914$80.46$2.89
Jun 2026Verdun Oil34432685046364$84.81$3.15
May 2026Verdun Oil36839660531561$102.13$2.94
Apr 2026Verdun Oil41747471039053$100.32$2.77
Mar 2026Verdun Oil55458578938967$91.38$3.04
Feb 2026Verdun Oil54949696449630$64.51$3.62
Jan 2026Verdun Oil52961248722821$60.04$7.72
Dec 2025Verdun Oil56046569336811$57.97$4.26
Nov 2025Verdun Oil6507418905808$60.06$3.79
Oct 2025Verdun Oil8038731,08373518$60.89$3.19
Sep 2025Verdun Oil7187751,03565056$63.96$2.97
Aug 2025Verdun Oil7186271,08866491$64.86$2.91
Jul 2025Verdun Oil6887441,14879247$68.39$3.20
Jun 2025Verdun Oil6525871,08776414$68.17$3.02
May 2025Verdun Oil6785671,10074247$62.17$3.12
Apr 2025Verdun Oil67066594963818$63.54$3.42
Mar 2025Verdun Oil71173090856934$68.24$4.12
Feb 2025Ep Energy61558769345231$71.53$4.19
Jan 2025Ep Energy61565481455816$75.74$4.13
Dec 2024Ep Energy68170997166313$70.12$3.01
Nov 2024Ep Energy6786111,0407559$69.95$2.12
Oct 2024Ep Energy6627084353075$71.99$2.20
Sep 2024Ep Energy68273558142612$70.24$2.28
Aug 2024Ep Energy6015263,8352,676141$76.68$1.99
Jul 2024Ep Energy6466902,7911,92592$81.80$2.07
Jun 2024Ep Energy6396842,4801,82426$79.77$2.54
May 2024Ep Energy7285822,6291,85838$80.02$2.12
Apr 2024Ep Energy6247442,3361,70727$85.35$1.60
Mar 2024Ep Energy6925771,8711,33712$81.28$1.49
Feb 2024Ep Energy5395182,0881,45014$77.25$1.72
Jan 2024Ep Energy5275882,2491,6349$74.15$3.18
Dec 2023Ep Energy5785742,8272,1443$71.90$2.52
Nov 2023Ep Energy6185893,3472,60521$77.69$2.71
Oct 2023Ep Energy3503114,1433,24289$85.64$2.98
Sep 2023Ep Energy5877103,7212,898141$89.43$2.64
Aug 2023Ep Energy6816734,2473,386148$81.39$2.58

Flared above 3%

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

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Nearby

This lease belongs to

OperatorVerdun Oil Ef II LLCFieldEagleville (Eagle Ford-1)CountyLa Salle County

Verdun Oil Ef II LLC in La Salle County

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Eagleville (Eagle Ford-1) field

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