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Texas gas well

Producing

AFFLERBACH 01 - R01 - M01 B

Afflerbach 01 - R01 - M01 B 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

76,195mcf gas, last 12 months−23% vs prior year
Operator
Marathon Oil Ef LLC
County
De Witt County
Field
De Witt (Eagle Ford Shale)
RRC lease
02-292844

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Where it sits

This county

De Witt CountyDe WittGoliadWilsonLavacaGonzalesKarnesVictoriaGuadalupeDe Witt County
De Witt County
Oil, last 12 months
1,576 bbl
Gas in Jul 2026
1,014 mcf

Production by month

Gas output fell 23% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 23% over the last 12 monthsMonthly gas production and oil for AFFLERBACH 01 - R01 - M01 B, Aug 2023 to Jul 2026. Gas output fell 23% over the last 12 months. 76,195 mcf in the 12 months through Jul 2026, against 99,166 mcf in the 12 months before.Last 12 months: 76,195 mcfmcf per monthbbl per month005,00025010k50015k75020k1,00025k1,250Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 23% over the last 12 monthsMonthly gas production and oil for AFFLERBACH 01 - R01 - M01 B, Aug 2023 to Jul 2026. Gas output fell 23% over the last 12 months. 76,195 mcf in the 12 months through Jul 2026, against 99,166 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month005,00025010k50015k75020k1,00025k1,250Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

92% of the gas went to a processing plant in the last 12 months

  • Processing plant (3)
  • Lease fuel (1)
92% of the gas went to a processing plant in the last 12 monthsShare of AFFLERBACH 01 - R01 - M01 B gas by disposition code each month, Aug 2023 to Jul 2026. 92% 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
92% of the gas went to a processing plant in the last 12 monthsShare of AFFLERBACH 01 - R01 - M01 B gas by disposition code each month, Aug 2023 to Jul 2026. 92% 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)

    92% · 76,223 mcf

  • Lease fuel (1)

    7.6% · 6,258 mcf

Who has run this lease

The operator changed once, most recently in Mar 2023

Operators of this lease over timeEnsign Operating LLC, Apr 2022 to Feb 2023; Marathon Oil Ef LLC, Mar 2023 to Jul 20262023202420252026Changed Mar 2023Ensign Operating LLCApr 2022 to Feb 2023Marathon Oil Ef LLCMar 2023 to now
Operators of this lease over timeEnsign Operating LLC, Apr 2022 to Feb 2023; Marathon Oil Ef LLC, Mar 2023 to Jul 20262023202420252026Changed Mar 2023Ensign Operating LLCApr 2022 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 AFFLERBACH 01 - R01 - M01 B
API numberWell no.Status
42-123-3512002HActive

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–
Ensign Operating LLCCondensateGathers50Apr 1, 2022Mar 1, 2023
Enterprise Crude Oil LLCCondensateGathers25Apr 1, 2022Mar 1, 2023
Enterprise Crude Pipeline LLCCondensateGathers25Apr 1, 2022Mar 1, 2023
Ensign Operating LLCGas-well gasGathers50Apr 1, 2022Mar 1, 2023
Enterprise Products Operating LLCGas-well gasGathers50Apr 1, 2022Mar 1, 2023
Enterprise Products Operating LLCGas-well gasBuys100Apr 1, 2022Mar 1, 2023

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

Who buys my oilOil price check

1,484.86 acres on the newest permit

  • Worth asking

    A production sharing agreement well is on this lease

    A production sharing agreement divides production by a method the agreement sets. Ask the operator for the agreement and the tract percentage it gives your land.

  • 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 Afflerbach 01 - R01 - M01 B
API numberWell no.Acreson the permit
42-123-3512002H1,484.86

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 AFFLERBACH 01 - R01 - M01 B
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Marathon Oil001,0149140$80.46$2.89
Jun 2026Marathon Oil006,9336,3540$84.81$3.15
May 2026Marathon Oil1241248,8428,1350$102.13$2.94
Apr 2026Marathon Oil44044018,41617,1480$100.32$2.77
Mar 2026Marathon Oil00000$91.38$3.04
Feb 2026Marathon Oil68681,5721,4170$64.51$3.62
Jan 2026Marathon Oil1241246,4395,9900$60.04$7.72
Dec 2025Marathon Oil23623610,4019,3800$57.97$4.26
Nov 2025Marathon Oil1391396,1765,6470$60.06$3.79
Oct 2025Marathon Oil1071074,0753,7780$60.89$3.19
Sep 2025Marathon Oil1751756,8046,3100$63.96$2.97
Aug 2025Marathon Oil1631635,5235,2330$64.86$2.91
Jul 2025Marathon Oil1561566,2865,9170$68.39$3.20
Jun 2025Marathon Oil1691696,9646,4150$68.17$3.02
May 2025Marathon Oil23723713,47312,5840$62.17$3.12
Apr 2025Marathon Oil33333317,84516,6600$63.54$3.42
Mar 2025Marathon Oil2972977,2496,8440$68.24$4.12
Feb 2025Marathon Oil62462410,66110,1420$71.53$4.19
Jan 2025Marathon Oil2342345,3144,9660$75.74$4.13
Dec 2024Marathon Oil3943949,5428,9900$70.12$3.01
Nov 2024Marathon Oil2082085,7565,4130$69.95$2.12
Oct 2024Marathon Oil1411415,0254,7450$71.99$2.20
Sep 2024Marathon Oil2002004,0643,8500$70.24$2.28
Aug 2024Marathon Oil3323326,9876,9870$76.68$1.99
Jul 2024Marathon Oil50950912,78912,7860$81.80$2.07
Jun 2024Marathon Oil60660612,75012,7490$79.77$2.54
May 2024Marathon Oil50450415,48915,4880$80.02$2.12
Apr 2024Marathon Oil56856817,76417,7530$85.35$1.60
Mar 2024Marathon Oil55855816,69916,6970$81.28$1.49
Feb 2024Marathon Oil96696616,59016,5900$77.25$1.72
Jan 2024Marathon Oil64064016,66816,6660$74.15$3.18
Dec 2023Marathon Oil86386318,23118,2300$71.90$2.52
Nov 2023Marathon Oil45345314,46614,4650$77.69$2.71
Oct 2023Marathon Oil90290217,14817,1470$85.64$2.98
Sep 2023Marathon Oil1,2001,20017,85117,8500$89.43$2.64
Aug 2023Marathon Oil82682622,15422,1410$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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