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MAUCH-TOM UNIT

Mauch-Tom Unit is an oil lease in Atascosa County, Texas, operated by Marathon Oil Ef LLC in the Eagleville (Eagle Ford-1) field.

1 well

1,659bbl oil, last 12 months+238% vs prior year
RRC lease
01-15685

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Where it sits

This county

Atascosa CountyAtascosaWilsonMedinaKarnesFrioBexarAtascosa County
Atascosa County
Gas, last 12 months
157 mcf
Oil in Jul 2026
0 bbl

Production by month

Oil output rose 238% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output rose 238% over the last 12 monthsMonthly oil production and gas for MAUCH-TOM UNIT, Aug 2023 to Jul 2026. Oil output rose 238% over the last 12 months. 1,659 bbl in the 12 months through Jul 2026, against 491 bbl in the 12 months before.Last 12 months: 1,659 bblbbl per monthmcf per month002502005004007506001,0008001,2501,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output rose 238% over the last 12 monthsMonthly oil production and gas for MAUCH-TOM UNIT, Aug 2023 to Jul 2026. Oil output rose 238% over the last 12 months. 1,659 bbl in the 12 months through Jul 2026, against 491 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002502005004007506001,0008001,2501,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Mar 2024 the lease's gas goes to a processing plant instead of lease fuel

Flaring peaked at 25.2% of the gas in Aug 2023.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
Since Mar 2024 the lease's gas goes to a processing plant instead of lease fuelShare of MAUCH-TOM UNIT gas by disposition code each month, Aug 2023 to Jul 2026. Since Mar 2024 the lease's gas goes to a processing plant instead of lease fuel. Flaring peaked at 25.2% of the gas in Aug 2023.Share of the lease’s gas by disposition code, per month0%50%100%Mar 2024: fuel to plantFlared 25.2%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Mar 2024 the lease's gas goes to a processing plant instead of lease fuelShare of MAUCH-TOM UNIT gas by disposition code each month, Aug 2023 to Jul 2026. Since Mar 2024 the lease's gas goes to a processing plant instead of lease fuel. Flaring peaked at 25.2% of the gas in Aug 2023.Share of gas by disposition code0%50%100%Mar 24: fuel to plantFlared 25.2%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    86% · 459 mcf

  • Lease fuel (1)

    12% · 62 mcf

  • Flared (4)

    2.4% · 13 mcf

2.4% of the gas flared in the last 12 months. 11 months above 3%.

1 well on this lease

Wells on MAUCH-TOM UNIT
API numberWell no.Status
42-013-344201HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Enterprise Crude Oil LLCOilGathers25Jul 1, 2022–
Gulfmark Energy, Inc.OilGathers25Jun 5, 2024–
Harvest Midstream CompanyOilGathers25Jun 5, 2024–
Trafigura Trading LLCOilGathers25Jun 5, 2024–
Marathon Oil Ef LLCCasinghead gasBuys100Jul 1, 2022–
Marathon Oil Ef LLCCasinghead gasGathers100Jul 1, 2022–
Genesis Crude Oil, L.p.OilGathers25Jul 1, 2022Jun 5, 2024
Reynolds Energy Transport LLCOilGathers25Jul 1, 2022Jun 5, 2024
Statewide Crude Inc.OilGathers25Jul 1, 2022Jun 5, 2024
Enterprise Crude Oil LLCOilGathers20Nov 1, 2011Jul 1, 2022
Genesis Crude Oil, L.p.OilGathers10Nov 1, 2011Jul 1, 2022
Gulfmark Energy, Inc.OilGathers35Nov 1, 2011Jul 1, 2022

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

273.29 acres on the newest permit

Permits for Mauch-Tom Unit
API numberWell no.Acreson the permit
42-013-344201H273.29

SourceRailroad Commission drilling permits, Sep 26, 2026 (source 1, source 2).

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 MAUCH-TOM UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 202600000$80.46$2.89
Jun 202600000$84.81$3.15
May 202600000$102.13$2.94
Apr 202600000$100.32$2.77
Mar 202600000$91.38$3.04
Feb 202600000$64.51$3.62
Jan 202600000$60.04$7.72
Dec 2025011000$57.97$4.26
Nov 202565165659520$60.06$3.79
Oct 20251,00899298841$60.89$3.19
Sep 202500000$63.96$2.97
Aug 202500000$64.86$2.91
Jul 202500000$68.39$3.20
Jun 202500000$68.17$3.02
May 202500000$62.17$3.12
Apr 202500000$63.54$3.42
Mar 20252526220$68.24$4.12
Feb 20252829760$71.53$4.19
Jan 202511611533261$75.74$4.13
Dec 2024484713110$70.12$3.01
Nov 202400000$69.95$2.12
Oct 202401000$71.99$2.20
Sep 20243739980$70.24$2.28
Aug 202423723556492$76.68$1.99
Jul 202410510671632$81.80$2.07
Jun 20244544641401264$79.77$2.54
May 202427626928192$80.02$2.12
Apr 202418318118131$85.35$1.60
Mar 20241011081080$81.28$1.49
Feb 2024288299407043$77.25$1.72
Jan 20246456281302$74.15$3.18
Dec 2023173173218018$71.90$2.52
Nov 2023155155521039$77.69$2.71
Oct 2023195205480045$85.64$2.98
Sep 2023650643290153$89.43$2.64
Aug 20234554543855497$81.39$2.58

Flared above 3%

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Sep 28, 2026.

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Eagleville (Eagle Ford-1) field

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