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Texas gas well

Producing

HERREJON 01

Herrejon 01 is a gas well in Live Oak County, Texas, operated by Marathon Oil Ef LLC in the Sugarkane (Eagle Ford) field.

1 well

3,026mcf gas, last 12 months−32% vs prior year
Operator
Marathon Oil Ef LLC
County
Live Oak County
Field
Sugarkane (Eagle Ford)
RRC lease
02-268777

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Where it sits

This county

Live Oak CountyLive OakAtascosaGoliadMcMullenKarnesSan PatricioBeeLive Oak County
Live Oak County
Oil, last 12 months
502 bbl
Gas in Jul 2026
550 mcf

Production by month

Gas output fell 32% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 32% over the last 12 monthsMonthly gas production and oil for HERREJON 01, Aug 2023 to Jul 2026. Gas output fell 32% over the last 12 months. 3,026 mcf in the 12 months through Jul 2026, against 4,451 mcf in the 12 months before.Last 12 months: 3,026 mcfmcf per monthbbl per month002,0001004,0002006,0003008,000400Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 32% over the last 12 monthsMonthly gas production and oil for HERREJON 01, Aug 2023 to Jul 2026. Gas output fell 32% over the last 12 months. 3,026 mcf in the 12 months through Jul 2026, against 4,451 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month002,0001004,0002006,0003008,000400Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

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

All of the gas went to a processing plant in the last 12 monthsShare of HERREJON 01 gas by disposition code each month, Aug 2023 to Jul 2026. All 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
All of the gas went to a processing plant in the last 12 monthsShare of HERREJON 01 gas by disposition code each month, Aug 2023 to Jul 2026. All 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.

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 HERREJON 01
API numberWell no.Status
42-297-3506501HActive

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

850.78 acres on the newest permit

Check your decimal on this lease
Permits for Herrejon 01
API numberWell no.Acreson the permit
42-297-3506501H850.78

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 HERREJON 01
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Marathon Oil3133135505500$80.46$2.89
Jun 2026Marathon Oil43434854850$84.81$3.15
May 2026Marathon Oil33334454450$102.13$2.94
Apr 2026Marathon Oil27273633630$100.32$2.77
Mar 2026Marathon Oil28284284280$91.38$3.04
Feb 2026Marathon Oil44446486480$64.51$3.62
Jan 2026Marathon Oil14141071070$60.04$7.72
Dec 2025Marathon Oil00000$57.97$4.26
Nov 2025Marathon Oil00000$60.06$3.79
Oct 2025Marathon Oil00000$60.89$3.19
Sep 2025Marathon Oil00000$63.96$2.97
Aug 2025Marathon Oil00000$64.86$2.91
Jul 2025Marathon Oil00000$68.39$3.20
Jun 2025Marathon Oil00000$68.17$3.02
May 2025Marathon Oil00000$62.17$3.12
Apr 2025Marathon Oil35353953950$63.54$3.42
Mar 2025Marathon Oil34344884880$68.24$4.12
Feb 2025Marathon Oil29293503500$71.53$4.19
Jan 2025Marathon Oil40404864860$75.74$4.13
Dec 2024Marathon Oil42424854850$70.12$3.01
Nov 2024Marathon Oil43435205200$69.95$2.12
Oct 2024Marathon Oil39394794790$71.99$2.20
Sep 2024Marathon Oil45455205200$70.24$2.28
Aug 2024Marathon Oil61617287280$76.68$1.99
Jul 2024Marathon Oil19192012010$81.80$2.07
Jun 2024Marathon Oil44445475470$79.77$2.54
May 2024Marathon Oil48485915910$80.02$2.12
Apr 2024Marathon Oil37372,5912,5910$85.35$1.60
Mar 2024Marathon Oil42427,1177,1170$81.28$1.49
Feb 2024Marathon Oil43431,8621,8620$77.25$1.72
Jan 2024Marathon Oil62629539530$74.15$3.18
Dec 2023Marathon Oil54545395390$71.90$2.52
Nov 2023Marathon Oil56565575570$77.69$2.71
Oct 2023Marathon Oil57576186180$85.64$2.98
Sep 2023Marathon Oil44444114110$89.43$2.64
Aug 2023Marathon Oil45454314310$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 LLCFieldSugarkane (Eagle Ford)CountyLive Oak County

Marathon Oil Ef LLC in Live Oak County

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Sugarkane (Eagle Ford) field

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