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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

20,783mcf gas, last 12 months+18% vs prior year
Operator
Marathon Oil Ef LLC
County
Live Oak County
Field
Sugarkane (Eagle Ford)
RRC lease
02-273700

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Where it sits

This county

Live Oak CountyLive OakAtascosaGoliadMcMullenKarnesSan PatricioBeeLive Oak County
Live Oak County
Oil, last 12 months
1,371 bbl
Gas in Jul 2026
1,427 mcf

Production by month

Gas output rose 18% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output rose 18% over the last 12 monthsMonthly gas production and oil for HERREJON 01, Aug 2023 to Jul 2026. Gas output rose 18% over the last 12 months. 20,783 mcf in the 12 months through Jul 2026, against 17,569 mcf in the 12 months before.Last 12 months: 20,783 mcfmcf per monthbbl per month001,0001002,0002003,0003004,000400Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output rose 18% over the last 12 monthsMonthly gas production and oil for HERREJON 01, Aug 2023 to Jul 2026. Gas output rose 18% over the last 12 months. 20,783 mcf in the 12 months through Jul 2026, against 17,569 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month001,0001002,0002003,0003004,000400Jan 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
42-297-3532604HActive

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

850.77 acres on the newest permit

  • Good to know

    A pooling certificate (P-12) was filed

    Your tract may share its production with neighbors in a pooled unit. The unit acres the operator uses to divide production can differ from the acreage on one permit.

Check your decimal on this lease
Permits for Herrejon 01
API numberWell no.Acreson the permit
42-297-3532604H850.77

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 Oil1351351,4271,4270$80.46$2.89
Jun 2026Marathon Oil2102101,8261,8260$84.81$3.15
May 2026Marathon Oil41411,8011,8010$102.13$2.94
Apr 2026Marathon Oil95951,8191,8190$100.32$2.77
Mar 2026Marathon Oil1211211,8081,8080$91.38$3.04
Feb 2026Marathon Oil1191191,8111,8110$64.51$3.62
Jan 2026Marathon Oil38382,4492,4490$60.04$7.72
Dec 2025Marathon Oil46461,3061,3060$57.97$4.26
Nov 2025Marathon Oil00000$60.06$3.79
Oct 2025Marathon Oil1681682,0152,0150$60.89$3.19
Sep 2025Marathon Oil1351352,0552,0550$63.96$2.97
Aug 2025Marathon Oil2632632,4662,4660$64.86$2.91
Jul 2025Marathon Oil1381381,9101,9100$68.39$3.20
Jun 2025Marathon Oil1281281,7461,7460$68.17$3.02
May 2025Marathon Oil3913911,4611,4610$62.17$3.12
Apr 2025Marathon Oil18181,2371,2370$63.54$3.42
Mar 2025Marathon Oil41416736730$68.24$4.12
Feb 2025Marathon Oil1191191,6871,6870$71.53$4.19
Jan 2025Marathon Oil30303773770$75.74$4.13
Dec 2024Marathon Oil1541541,4041,4040$70.12$3.01
Nov 2024Marathon Oil1211211,7271,7270$69.95$2.12
Oct 2024Marathon Oil1361361,8051,8050$71.99$2.20
Sep 2024Marathon Oil1751751,7291,7290$70.24$2.28
Aug 2024Marathon Oil1831831,8131,8130$76.68$1.99
Jul 2024Marathon Oil1401401,9211,9210$81.80$2.07
Jun 2024Marathon Oil1401402,0342,0340$79.77$2.54
May 2024Marathon Oil1481482,2972,2970$80.02$2.12
Apr 2024Marathon Oil12121671670$85.35$1.60
Mar 2024Marathon Oil1741742,1112,1110$81.28$1.49
Feb 2024Marathon Oil2002002,5482,5480$77.25$1.72
Jan 2024Marathon Oil1401401,2031,2030$74.15$3.18
Dec 2023Marathon Oil1551551,6571,6570$71.90$2.52
Nov 2023Marathon Oil2192192,2082,2080$77.69$2.71
Oct 2023Marathon Oil2202202,3512,3510$85.64$2.98
Sep 2023Marathon Oil2422422,6422,6420$89.43$2.64
Aug 2023Marathon Oil1481481,4641,4640$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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