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Texas gas well

Producing

MUELLER 01

Mueller 01 is a gas well in De Witt County, Texas, operated by Marathon Oil Ef LLC in the De Witt (Eagle Ford Shale) field.

1 well

21,613mcf gas, last 12 months+11% vs prior year
Operator
Marathon Oil Ef LLC
County
De Witt County
Field
De Witt (Eagle Ford Shale)
RRC lease
02-265662

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Where it sits

This county

De Witt CountyDe WittGoliadWilsonLavacaGonzalesKarnesVictoriaGuadalupeDe Witt County
De Witt County
Oil, last 12 months
774 bbl
Gas in Jul 2026
1,367 mcf

Production by month

Gas output rose 11% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output rose 11% over the last 12 monthsMonthly gas production and oil for MUELLER 01, Aug 2023 to Jul 2026. Gas output rose 11% over the last 12 months. 21,613 mcf in the 12 months through Jul 2026, against 19,446 mcf in the 12 months before.Last 12 months: 21,613 mcfmcf per monthbbl per month005001001,0002001,5003002,0004002,500500Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output rose 11% over the last 12 monthsMonthly gas production and oil for MUELLER 01, Aug 2023 to Jul 2026. Gas output rose 11% over the last 12 months. 21,613 mcf in the 12 months through Jul 2026, against 19,446 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month005001001,0002001,5003002,0004002,500500Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

All of the gas went to a processing plant in the last 12 months

All of the gas went to a processing plant in the last 12 monthsShare of MUELLER 01 gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a processing plant in the last 12 months.Share of the lease’s gas by disposition code, per month0%50%100%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
All of the gas went to a processing plant in the last 12 monthsShare of MUELLER 01 gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a processing plant in the last 12 months.Share of gas by disposition code0%50%100%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Who has run this lease

The operator changed once, most recently in Mar 2023

Operators of this lease over timeEnsign Operating LLC, Jan 2020 to Feb 2023; Marathon Oil Ef LLC, Mar 2023 to Jul 20262020202120222023202420252026Changed Mar 2023Ensign Operating LLCJan 2020 to Feb 2023Marathon Oil Ef LLCMar 2023 to now
Operators of this lease over timeEnsign Operating LLC, Jan 2020 to Feb 2023; Marathon Oil Ef LLC, Mar 2023 to Jul 20262020202120222023202420252026Changed Mar 2023Ensign Operating LLCJan 2020 to Feb 2023Marathon Oil Ef LLCMar 2023 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on MUELLER 01
API numberWell no.Status
42-123-3239401HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Enterprise Crude Oil LLCCondensateGathers50Mar 1, 2023–
Enterprise Crude Pipeline LLCCondensateGathers50Mar 1, 2023–
Marathon Oil Ef LLCGas-well gasBuys100Mar 1, 2023–
Marathon Oil Ef LLCGas-well gasGathers100Mar 1, 2023–
Gulfmark Energy, Inc.CondensateGathers100Oct 2, 2019Mar 1, 2023
Ensign Operating LLCGas-well gasGathers100Oct 2, 2019Mar 1, 2023
Ensign Operating LLCGas-well gasBuys100Oct 2, 2019Mar 1, 2023
Ensign Operating LLCCondensateGathers50Oct 1, 2019Oct 2, 2019
Enterprise Crude Oil LLCCondensateGathers25Oct 1, 2019Oct 2, 2019
Enterprise Crude Pipeline LLCCondensateGathers25Oct 1, 2019Oct 2, 2019

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

Who buys my oilOil price check

482.15 acres on the newest permit

Check your decimal on this lease
Permits for Mueller 01
API numberWell no.Acreson the permit
42-123-3239401H482.15

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

Unit decimal checker

What ConocoPhillips told investors it received

Marathon Oil Ef LLC is linked to ConocoPhillips (MRO).
Realized prices reported by ConocoPhillips
QuarterOil$ per bblFiling
Q2 2026$99.40SEC filing
Q1 2026$73.47SEC filing
Q3 2025$66.13SEC filing
Q2 2025$64.23SEC filing
Q1 2025$71.65SEC filing

SourceConocoPhillips quarterly reports, SEC EDGAR, company-wide averages before hedging.

Estimate your royalty

36 months, newest first

Ledger for MUELLER 01
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Marathon Oil25251,3671,3670$80.46$2.89
Jun 2026Marathon Oil26261,5141,5140$84.81$3.15
May 2026Marathon Oil40401,4771,4770$102.13$2.94
Apr 2026Marathon Oil81811,8221,8220$100.32$2.77
Mar 2026Marathon Oil79791,8241,8240$91.38$3.04
Feb 2026Marathon Oil1001002,0442,0440$64.51$3.62
Jan 2026Marathon Oil78781,8191,8190$60.04$7.72
Dec 2025Marathon Oil76761,5311,5310$57.97$4.26
Nov 2025Marathon Oil51512,0172,0170$60.06$3.79
Oct 2025Marathon Oil64642,1212,1210$60.89$3.19
Sep 2025Marathon Oil51512,0622,0620$63.96$2.97
Aug 2025Marathon Oil1031032,0152,0150$64.86$2.91
Jul 2025Marathon Oil70701,9901,9900$68.39$3.20
Jun 2025Marathon Oil27272,1652,1650$68.17$3.02
May 2025Marathon Oil37372,1692,1690$62.17$3.12
Apr 2025Marathon Oil31311,5851,5850$63.54$3.42
Mar 2025Marathon Oil63631,0691,0690$68.24$4.12
Feb 2025Marathon Oil52521,7911,7910$71.53$4.19
Jan 2025Marathon Oil1111118468460$75.74$4.13
Dec 2024Marathon Oil26261,5431,5430$70.12$3.01
Nov 2024Marathon Oil18181,5511,5510$69.95$2.12
Oct 2024Marathon Oil19191,6081,6080$71.99$2.20
Sep 2024Marathon Oil17171,4991,4990$70.24$2.28
Aug 2024Marathon Oil32321,6301,6300$76.68$1.99
Jul 2024Marathon Oil37371,6331,6330$81.80$2.07
Jun 2024Marathon Oil42421,6981,6980$79.77$2.54
May 2024Marathon Oil38381,7081,7080$80.02$2.12
Apr 2024Marathon Oil63632,2392,2390$85.35$1.60
Mar 2024Marathon Oil4494498478470$81.28$1.49
Feb 2024Marathon Oil69691,5871,5870$77.25$1.72
Jan 2024Marathon Oil49491,8431,8430$74.15$3.18
Dec 2023Marathon Oil47471,7261,7260$71.90$2.52
Nov 2023Marathon Oil44441,6641,6640$77.69$2.71
Oct 2023Marathon Oil31311,6981,6980$85.64$2.98
Sep 2023Marathon Oil24241,6831,6830$89.43$2.64
Aug 2023Marathon Oil38381,7001,7000$81.39$2.58

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

OperatorMarathon Oil Ef LLCFieldDe Witt (Eagle Ford Shale)CountyDe Witt County

Marathon Oil Ef LLC in De Witt County

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De Witt (Eagle Ford Shale) field

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