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Texas gas well

Producing

HIERHOLZER-HENKE UNIT

Hierholzer-Henke Unit is a gas well in Atascosa County, Texas, operated by Marathon Oil Ef LLC in the Eagleville (Eagle Ford-1) field.

Gas well dossier

696mcf gas, last 12 months−70% vs prior year
Operator
Marathon Oil Ef LLC
County
Atascosa County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-289621

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Where it sits

This county

Atascosa CountyAtascosaWilsonMedinaKarnesFrioBexarAtascosa County
Atascosa County
Oil, last 12 months
938 bbl
Gas in Jul 2026
67 mcf

Production by month

Gas output fell 70% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 70% over the last 12 monthsMonthly gas production and oil for HIERHOLZER-HENKE UNIT, Aug 2023 to Jul 2026. Gas output fell 70% over the last 12 months. 696 mcf in the 12 months through Jul 2026, against 2,293 mcf in the 12 months before.Last 12 months: 696 mcfmcf per monthbbl per month002001004002006003008004001,000500Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 70% over the last 12 monthsMonthly gas production and oil for HIERHOLZER-HENKE UNIT, Aug 2023 to Jul 2026. Gas output fell 70% over the last 12 months. 696 mcf in the 12 months through Jul 2026, against 2,293 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month002001004002006003008004001,000500Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

86% of the gas went to a processing plant in the last 12 months

Flaring peaked at 3.6% of the gas in Jun 2024.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
86% of the gas went to a processing plant in the last 12 monthsShare of HIERHOLZER-HENKE UNIT gas by disposition code each month, Aug 2023 to Jul 2026. 86% of the gas went to a processing plant in the last 12 months. Flaring peaked at 3.6% of the gas in Jun 2024.Share of the lease’s gas by disposition code, per month0%50%100%Flared 3.6%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
86% of the gas went to a processing plant in the last 12 monthsShare of HIERHOLZER-HENKE UNIT gas by disposition code each month, Aug 2023 to Jul 2026. 86% of the gas went to a processing plant in the last 12 months. Flaring peaked at 3.6% of the gas in Jun 2024.Share of gas by disposition code0%50%100%Flared 3.6%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    86% · 1,551 mcf

  • Lease fuel (1)

    12% · 217 mcf

  • Flared (4)

    1.7% · 31 mcf

1.7% of the gas flared in the last 12 months. 2 months above 3%.

Wells on this lease

No wells are linked to this lease in our data

Production is still reported at lease level.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Enterprise Crude Oil LLCCondensateGathers20Jul 1, 2022–
Genesis Crude Oil, L.p.CondensateGathers20Jul 1, 2022–
Harvest Midstream CompanyCondensateGathers20Jul 1, 2022–
Shell Trading (Us) CompanyCondensateGathers20Jul 1, 2022–
Reynolds Energy Transport LLCCondensateGathers10Jul 1, 2022–
Statewide Crude Inc.CondensateGathers10Jul 1, 2022–
Marathon Oil Ef LLCGas-well gasBuys100May 12, 2012–
Marathon Oil Ef LLCGas-well gasGathers100May 12, 2012–
Enterprise Crude Oil LLCCondensateGathers1May 12, 2012Jul 1, 2022
Genesis Crude Oil, L.p.CondensateGathers1May 12, 2012Jul 1, 2022
Gulfmark Energy, Inc.CondensateGathers1May 12, 2012Jul 1, 2022
Harvest Midstream CompanyCondensateGathers95May 12, 2012Jul 1, 2022
Shell Trading (Us) CompanyCondensateGathers1May 12, 2012Jul 1, 2022
Statewide Crude Inc.CondensateGathers1May 12, 2012Jul 1, 2022

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

Who buys my oilOil price check

247.80 acres on the newest permit

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Permits for Hierholzer-Henke Unit
API numberWell no.Acreson the permit
42-013-344581H247.80

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 HIERHOLZER-HENKE UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026858467561$80.46$2.89
Jun 202622000$84.81$3.15
May 20261212110$102.13$2.94
Apr 202677110$100.32$2.77
Mar 20262324330$91.38$3.04
Feb 2026333514130$64.51$3.62
Jan 20263773742322121$60.04$7.72
Dec 202501000$57.97$4.26
Nov 2025596245381$60.06$3.79
Oct 20253403363332992$60.89$3.19
Sep 202500000$63.96$2.97
Aug 202504000$64.86$2.91
Jul 202546746350441815$68.39$3.20
Jun 202503000$68.17$3.02
May 20254394363743237$62.17$3.12
Apr 202500000$63.54$3.42
Mar 20256666870$68.24$4.12
Feb 202501000$71.53$4.19
Jan 202585842171804$75.74$4.13
Dec 202403000$70.12$3.01
Nov 20242442433583124$69.95$2.12
Oct 20241811802742375$71.99$2.20
Sep 20241511522111845$70.24$2.28
Aug 20241881863473034$76.68$1.99
Jul 202403000$81.80$2.07
Jun 20243263241661406$79.77$2.54
May 202421221139033214$80.02$2.12
Apr 202400000$85.35$1.60
Mar 202400000$81.28$1.49
Feb 202423000$77.25$1.72
Jan 2024323655511$74.15$3.18
Dec 20231961933473282$71.90$2.52
Nov 20231051031831731$77.69$2.71
Oct 202302000$85.64$2.98
Sep 2023818588821$89.43$2.64
Aug 20233053055164855$81.39$2.58

Flared above 3%

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 LLCFieldEagleville (Eagle Ford-1)CountyAtascosa County

Marathon Oil Ef LLC in Atascosa County

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Eagleville (Eagle Ford-1) field

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New drilling permits in Atascosa County

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