Skip to content
Royalty Clerk

Texas oil lease

Producing

MUMME-LA SALLE UNIT

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

2 wells

5,242bbl oil, last 12 months−27% vs prior year
Operator
Verdun Oil Ef II LLC
County
La Salle County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-17145

Is your check right?

Check my statement

Where it sits

This county

La Salle CountyLa SalleZavalaAtascosaMcMullenDimmitFrioLa Salle County
La Salle County
Gas, last 12 months
12,400 mcf
Oil in Jul 2026
378 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 27% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 27% over the last 12 monthsMonthly oil production and gas for MUMME-LA SALLE UNIT, Aug 2023 to Jul 2026. Oil output fell 27% over the last 12 months. 5,242 bbl in the 12 months through Jul 2026, against 7,187 bbl in the 12 months before.Last 12 months: 5,242 bblbbl per monthmcf per month002501,0005002,0007503,0001,0004,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 27% over the last 12 monthsMonthly oil production and gas for MUMME-LA SALLE UNIT, Aug 2023 to Jul 2026. Oil output fell 27% over the last 12 months. 5,242 bbl in the 12 months through Jul 2026, against 7,187 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002501,0005002,0007503,0001,0004,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

59% of the gas went to a transmission line in the last 12 months

Flaring peaked at 9.8% of the gas in May 2026.

  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
59% of the gas went to a transmission line in the last 12 monthsShare of MUMME-LA SALLE UNIT gas by disposition code each month, Aug 2023 to Jul 2026. 59% of the gas went to a transmission line in the last 12 months. Flaring peaked at 9.8% of the gas in May 2026.Share of the lease’s gas by disposition code, per month0%50%100%Flared 9.8%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
59% of the gas went to a transmission line in the last 12 monthsShare of MUMME-LA SALLE UNIT gas by disposition code each month, Aug 2023 to Jul 2026. 59% of the gas went to a transmission line in the last 12 months. Flaring peaked at 9.8% of the gas in May 2026.Share of gas by disposition code0%50%100%Flared 9.8%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    59% · 7,353 mcf

  • Lease fuel (1)

    36% · 4,503 mcf

  • Flared (4)

    4.4% · 544 mcf

4.4% of the gas flared in the last 12 months. 15 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.

2 wells on this lease

Wells on MUMME-LA SALLE UNIT
API numberWell no.Status
42-283-3392663HActive
42-283-36704105HActive

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

198.30 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-LA Salle Unit
API numberWell no.Acreson the permit
42-283-36704105H198.30
42-283-3392663H198.30

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

Unit decimal checker

Estimate your royalty

36 months, newest first

Ledger for MUMME-LA SALLE UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Verdun Oil3783794152416$80.46$2.89
Jun 2026Verdun Oil36235646426113$84.81$3.15
May 2026Verdun Oil37837852326251$102.13$2.94
Apr 2026Verdun Oil37838340022131$100.32$2.77
Mar 2026Verdun Oil43343982841467$91.38$3.04
Feb 2026Verdun Oil40639664133921$64.51$3.62
Jan 2026Verdun Oil34737271736435$60.04$7.72
Dec 2025Verdun Oil5034911,31870326$57.97$4.26
Nov 2025Verdun Oil4734721,7191,11023$60.06$3.79
Oct 2025Verdun Oil5245171,8521,25333$60.89$3.19
Sep 2025Verdun Oil5425321,7911,12398$63.96$2.97
Aug 2025Verdun Oil5185351,7321,062140$64.86$2.91
Jul 2025Verdun Oil5475362,0101,38281$68.39$3.20
Jun 2025Verdun Oil5265281,9931,40025$68.17$3.02
May 2025Verdun Oil6126142,1301,43790$62.17$3.12
Apr 2025Verdun Oil7647662,1641,45442$63.54$3.42
Mar 2025Verdun Oil7026992,1871,37285$68.24$4.12
Feb 2025Ep Energy5775681,9351,26286$71.53$4.19
Jan 2025Ep Energy5845842,1811,50537$75.74$4.13
Dec 2024Ep Energy5725791,7481,19532$70.12$3.01
Nov 2024Ep Energy5565532,4141,74924$69.95$2.12
Oct 2024Ep Energy5715621,7701,22324$71.99$2.20
Sep 2024Ep Energy5525582,2921,68060$70.24$2.28
Aug 2024Ep Energy6246222,2921,59198$76.68$1.99
Jul 2024Ep Energy6346332,1681,50667$81.80$2.07
Jun 2024Ep Energy6466662,3171,70423$79.77$2.54
May 2024Ep Energy7037012,3801,69529$80.02$2.12
Apr 2024Ep Energy6546692,3021,68824$85.35$1.60
Mar 2024Ep Energy7587542,3371,65426$81.28$1.49
Feb 2024Ep Energy7407242,3341,62013$77.25$1.72
Jan 2024Ep Energy7017262,5811,86917$74.15$3.18
Dec 2023Ep Energy7957782,5151,9082$71.90$2.52
Nov 2023Ep Energy8438563,2422,49526$77.69$2.71
Oct 2023Ep Energy7767832,3471,84048$85.64$2.98
Sep 2023Ep Energy8838752,3881,86488$89.43$2.64
Aug 2023Ep Energy8358072,2961,82877$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.

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

Do your checks match this lease?

Check my statement

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

All Verdun Oil Ef II LLC leases →

Eagleville (Eagle Ford-1) field

All leases in this field →

Leases within 10 km

Drilling permits within 10 km