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Texas oil lease

Producing

GEBERT-MUMME UNIT

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

4 wells

14,825bbl oil, last 12 months+5% vs prior year
Operator
Verdun Oil Ef II LLC
County
La Salle County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-16818

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Where it sits

This county

La Salle CountyLa SalleZavalaAtascosaMcMullenDimmitFrioLa Salle County
La Salle County
Gas, last 12 months
49,527 mcf
Oil in Jul 2026
1,161 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 rose 5% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output rose 5% over the last 12 monthsMonthly oil production and gas for GEBERT-MUMME UNIT, Aug 2023 to Jul 2026. Oil output rose 5% over the last 12 months. 14,825 bbl in the 12 months through Jul 2026, against 14,080 bbl in the 12 months before.Last 12 months: 14,825 bblbbl per monthmcf per month001,0002,0002,0004,0003,0006,0004,0008,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output rose 5% over the last 12 monthsMonthly oil production and gas for GEBERT-MUMME UNIT, Aug 2023 to Jul 2026. Oil output rose 5% over the last 12 months. 14,825 bbl in the 12 months through Jul 2026, against 14,080 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month001,0002,0002,0004,0003,0006,0004,0008,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Jun 2024 the lease's gas goes to lease fuel instead of a transmission line

Flaring peaked at 56.4% of the gas in Nov 2025.

  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
Since Jun 2024 the lease's gas goes to lease fuel instead of a transmission lineShare of GEBERT-MUMME UNIT gas by disposition code each month, Aug 2023 to Jul 2026. Since Jun 2024 the lease's gas goes to lease fuel instead of a transmission line. Flaring peaked at 56.4% of the gas in Nov 2025.Share of the lease’s gas by disposition code, per month0%50%100%Jun 2024: line to fuelFlared 56.4%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Jun 2024 the lease's gas goes to lease fuel instead of a transmission lineShare of GEBERT-MUMME UNIT gas by disposition code each month, Aug 2023 to Jul 2026. Since Jun 2024 the lease's gas goes to lease fuel instead of a transmission line. Flaring peaked at 56.4% of the gas in Nov 2025.Share of gas by disposition code0%50%100%Jun 24: line to fuelFlared 56.4%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Lease fuel (1)

    47% · 23,314 mcf

  • Flared (4)

    34% · 17,010 mcf

  • Transmission line (2)

    19% · 9,203 mcf

34.3% of the gas flared in the last 12 months. 34 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.

4 wells on this lease

Wells on GEBERT-MUMME UNIT
API numberWell no.Status
42-283-3369820HActive
42-283-3369921HActive
42-283-36592101HActive
42-283-36593102HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Eastex Crude CompanyOilGathers34Mar 1, 2019–
Gulfmark Energy, Inc.OilGathers33Mar 1, 2019–
Shell Trading (Us) CompanyOilGathers33Mar 1, 2019–
Dcp Operating Company, LPCasinghead gasBuys100Apr 1, 2017–
Dcp Operating Company, LPCasinghead gasGathers100Apr 1, 2017–
Eastex Crude CompanyOilGathers80Jul 17, 2013Mar 1, 2019
Shell Trading (Us) CompanyOilGathers20Jul 17, 2013Mar 1, 2019

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

Who buys my oilOil price check

647.12 acres on the newest permit

Permits for Gebert-Mumme Unit
API numberWell no.Acreson the permit
42-283-36593102H647.12
42-283-36592101H647.12
42-283-3369921H647.12
42-283-3369820H647.12

SourceRailroad Commission drilling permits, Sep 26, 2026 (source 1, source 2).

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36 months, newest first

Ledger for GEBERT-MUMME UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Verdun Oil1,1611,3274,1541,167923$80.46$2.89
Jun 2026Verdun Oil1,3801,2045,6219892,619$84.81$3.15
May 2026Verdun Oil9329684,9781,0441,643$102.13$2.94
Apr 2026Verdun Oil1,1471,1524,7021,1241,481$100.32$2.77
Mar 2026Verdun Oil1,2041,0062,924511482$91.38$3.04
Feb 2026Verdun Oil1,3301,2913,9737751,417$64.51$3.62
Jan 2026Verdun Oil1,1571,3053,254485733$60.04$7.72
Dec 2025Verdun Oil1,3701,4634,5316991,505$57.97$4.26
Nov 2025Verdun Oil1,2761,4793,5004671,973$60.06$3.79
Oct 2025Verdun Oil1,3951,3304,0088191,175$60.89$3.19
Sep 2025Verdun Oil1,3311,0173,9236921,498$63.96$2.97
Aug 2025Verdun Oil1,1421,0873,9594311,561$64.86$2.91
Jul 2025Verdun Oil1,3081,4643,648990358$68.39$3.20
Jun 2025Verdun Oil1,2301,2753,5871,131369$68.17$3.02
May 2025Verdun Oil1,3891,3513,125916216$62.17$3.12
Apr 2025Verdun Oil1,3011,3173,825941982$63.54$3.42
Mar 2025Verdun Oil1,4051,3643,457825457$68.24$4.12
Feb 2025Ep Energy1,4121,4943,329768832$71.53$4.19
Jan 2025Ep Energy1,1401,1143,5621,211297$75.74$4.13
Dec 2024Ep Energy1,0109982,892669254$70.12$3.01
Nov 2024Ep Energy7317904,2664211,610$69.95$2.12
Oct 2024Ep Energy3143774,3318281,765$71.99$2.20
Sep 2024Ep Energy1,2491,1086,3211,5942,547$70.24$2.28
Aug 2024Ep Energy1,5911,5515,2521,650827$76.68$1.99
Jul 2024Ep Energy1,6801,7594,7831,908344$81.80$2.07
Jun 2024Ep Energy1,4971,4564,4601,847387$79.77$2.54
May 2024Ep Energy1,8121,9536,0282,959657$80.02$2.12
Apr 2024Ep Energy1,6801,5755,1032,720135$85.35$1.60
Mar 2024Ep Energy1,7311,7345,0702,497121$81.28$1.49
Feb 2024Ep Energy1,6121,4344,4642,053344$77.25$1.72
Jan 2024Ep Energy1,5271,4714,8051,827474$74.15$3.18
Dec 2023Ep Energy1,6361,9215,4712,049407$71.90$2.52
Nov 2023Ep Energy1,7981,6155,4782,433225$77.69$2.71
Oct 2023Ep Energy1,8571,9316,2572,759928$85.64$2.98
Sep 2023Ep Energy2,5812,5496,8533,5321,174$89.43$2.64
Aug 2023Ep Energy2,2302,2906,7692,8822,024$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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