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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

9,678mcf gas, last 12 months−28% vs prior year
Operator
Marathon Oil Ef LLC
County
De Witt County
Field
De Witt (Eagle Ford Shale)
RRC lease
02-277502

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Where it sits

This county

De Witt CountyDe WittGoliadWilsonLavacaGonzalesKarnesVictoriaGuadalupeDe Witt County
De Witt County
Oil, last 12 months
1,453 bbl
Gas in Jul 2026
1,296 mcf

Production by month

Gas output fell 28% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 28% over the last 12 monthsMonthly gas production and oil for RESSMAN 01, Aug 2023 to Jul 2026. Gas output fell 28% over the last 12 months. 9,678 mcf in the 12 months through Jul 2026, against 13,476 mcf in the 12 months before.Last 12 months: 9,678 mcfmcf per monthbbl per month005001001,0002001,5003002,000400Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 28% over the last 12 monthsMonthly gas production and oil for RESSMAN 01, Aug 2023 to Jul 2026. Gas output fell 28% over the last 12 months. 9,678 mcf in the 12 months through Jul 2026, against 13,476 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month005001001,0002001,5003002,000400Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

94% of the gas went to a processing plant in the last 12 months

  • Processing plant (3)
  • Lease fuel (1)
94% 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. 94% 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
94% 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. 94% 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)

    94% · 9,875 mcf

  • Lease fuel (1)

    6.2% · 650 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
42-123-3324705HActive

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
42-123-3324705H633.33

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 Oil2422421,2961,2630$80.46$2.89
Jun 2026Marathon Oil1551551,2061,1890$84.81$3.15
May 2026Marathon Oil1391391,0971,0930$102.13$2.94
Apr 2026Marathon Oil00550$100.32$2.77
Mar 2026Marathon Oil1661666726430$91.38$3.04
Feb 2026Marathon Oil00000$64.51$3.62
Jan 2026Marathon Oil26261,0619770$60.04$7.72
Dec 2025Marathon Oil84847156350$57.97$4.26
Nov 2025Marathon Oil1791791,1289990$60.06$3.79
Oct 2025Marathon Oil1741748227450$60.89$3.19
Sep 2025Marathon Oil1461468047340$63.96$2.97
Aug 2025Marathon Oil1421428728030$64.86$2.91
Jul 2025Marathon Oil1481488477890$68.39$3.20
Jun 2025Marathon Oil1791799548710$68.17$3.02
May 2025Marathon Oil1891899228660$62.17$3.12
Apr 2025Marathon Oil1431438197670$63.54$3.42
Mar 2025Marathon Oil1781781,3181,2350$68.24$4.12
Feb 2025Marathon Oil1491491,1661,1170$71.53$4.19
Jan 2025Marathon Oil1071076566260$75.74$4.13
Dec 2024Marathon Oil2042041,6181,5600$70.12$3.01
Nov 2024Marathon Oil2352351,6151,5580$69.95$2.12
Oct 2024Marathon Oil3023021,9411,8480$71.99$2.20
Sep 2024Marathon Oil1101108588070$70.24$2.28
Aug 2024Marathon Oil80807627250$76.68$1.99
Jul 2024Marathon Oil88887937600$81.80$2.07
Jun 2024Marathon Oil2234320$79.77$2.54
May 2024Marathon Oil1741741,3141,2240$80.02$2.12
Apr 2024Marathon Oil2162161,5771,4840$85.35$1.60
Mar 2024Marathon Oil2592591,6451,5410$81.28$1.49
Feb 2024Marathon Oil2222221,5251,4330$77.25$1.72
Jan 2024Marathon Oil2642641,6611,5780$74.15$3.18
Dec 2023Marathon Oil2622621,8821,7680$71.90$2.52
Nov 2023Marathon Oil1951951,5111,3550$77.69$2.71
Oct 2023Marathon Oil2412411,7921,5920$85.64$2.98
Sep 2023Marathon Oil2322321,8311,6050$89.43$2.64
Aug 2023Marathon Oil2382381,9311,6940$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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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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