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Texas gas well

Producing

RESSMAN 01

Ressman 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

9,563mcf gas, last 12 months−45% vs prior year
Operator
Marathon Oil Ef LLC
County
De Witt County
Field
De Witt (Eagle Ford Shale)
RRC lease
02-277497

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Where it sits

This county

De Witt CountyDe WittGoliadWilsonLavacaGonzalesKarnesVictoriaGuadalupeDe Witt County
De Witt County
Oil, last 12 months
1,037 bbl
Gas in Jul 2026
1,000 mcf

Production by month

Gas output fell 45% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 45% over the last 12 monthsMonthly gas production and oil for RESSMAN 01, Aug 2023 to Jul 2026. Gas output fell 45% over the last 12 months. 9,563 mcf in the 12 months through Jul 2026, against 17,256 mcf in the 12 months before.Last 12 months: 9,563 mcfmcf per monthbbl per month001,0002002,0004003,0006004,000800Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 45% over the last 12 monthsMonthly gas production and oil for RESSMAN 01, Aug 2023 to Jul 2026. Gas output fell 45% over the last 12 months. 9,563 mcf in the 12 months through Jul 2026, against 17,256 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month001,0002002,0004003,0006004,000800Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

93% of the gas went to a processing plant in the last 12 months

  • Processing plant (3)
  • Lease fuel (1)
93% of the gas went to a processing plant in the last 12 monthsShare of RESSMAN 01 gas by disposition code each month, Aug 2023 to Jul 2026. 93% 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
93% of the gas went to a processing plant in the last 12 monthsShare of RESSMAN 01 gas by disposition code each month, Aug 2023 to Jul 2026. 93% 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.

  • Processing plant (3)

    93% · 11,058 mcf

  • Lease fuel (1)

    6.8% · 813 mcf

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 RESSMAN 01
API numberWell no.Status
42-123-3324604HActive

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

633.33 acres on the newest permit

Check your decimal on this lease
Permits for Ressman 01
API numberWell no.Acreson the permit
42-123-3324604H633.33

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 RESSMAN 01
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Marathon Oil63631,0009740$80.46$2.89
Jun 2026Marathon Oil93937227120$84.81$3.15
May 2026Marathon Oil91917897860$102.13$2.94
Apr 2026Marathon Oil11113243110$100.32$2.77
Mar 2026Marathon Oil1691691,2061,1530$91.38$3.04
Feb 2026Marathon Oil00000$64.51$3.62
Jan 2026Marathon Oil772532330$60.04$7.72
Dec 2025Marathon Oil00000$57.97$4.26
Nov 2025Marathon Oil1911911,8791,6640$60.06$3.79
Oct 2025Marathon Oil18181181070$60.89$3.19
Sep 2025Marathon Oil1531531,2011,0960$63.96$2.97
Aug 2025Marathon Oil2412412,0711,9080$64.86$2.91
Jul 2025Marathon Oil43433553310$68.39$3.20
Jun 2025Marathon Oil2492491,9531,7830$68.17$3.02
May 2025Marathon Oil2502501,5981,5000$62.17$3.12
Apr 2025Marathon Oil3033031,4851,3910$63.54$3.42
Mar 2025Marathon Oil3763761,7621,6520$68.24$4.12
Feb 2025Marathon Oil3393391,9171,8370$71.53$4.19
Jan 2025Marathon Oil252568650$75.74$4.13
Dec 2024Marathon Oil1031035395200$70.12$3.01
Nov 2024Marathon Oil3383381,8811,8140$69.95$2.12
Oct 2024Marathon Oil3763761,5881,5120$71.99$2.20
Sep 2024Marathon Oil5435433,0932,9090$70.24$2.28
Aug 2024Marathon Oil1681681,0179680$76.68$1.99
Jul 2024Marathon Oil18181051010$81.80$2.07
Jun 2024Marathon Oil7766610$79.77$2.54
May 2024Marathon Oil1881881,6451,5320$80.02$2.12
Apr 2024Marathon Oil2872872,7452,5800$85.35$1.60
Mar 2024Marathon Oil4074072,7782,6090$81.28$1.49
Feb 2024Marathon Oil3453452,5242,3710$77.25$1.72
Jan 2024Marathon Oil4204203,2653,1070$74.15$3.18
Dec 2023Marathon Oil2722722,0431,9190$71.90$2.52
Nov 2023Marathon Oil64648737810$77.69$2.71
Oct 2023Marathon Oil2232231,9861,7620$85.64$2.98
Sep 2023Marathon Oil2922922,7932,4460$89.43$2.64
Aug 2023Marathon Oil1801802,3802,0860$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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