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Texas gas well

Producing

HAVEMAN TRUST 01

Haveman Trust 01 is a gas well in Karnes County, Texas, operated by Marathon Oil Ef LLC in the Sugarkane (Eagle Ford) field.

1 well

139,746mcf gas, last 12 months−20% vs prior year
Operator
Marathon Oil Ef LLC
County
Karnes County
Field
Sugarkane (Eagle Ford)
RRC lease
02-288863

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Oil, last 12 months
7,010 bbl
Gas in Jul 2026
10,491 mcf

Production by month

Gas output fell 20% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 20% over the last 12 monthsMonthly gas production and oil for HAVEMAN TRUST 01, Aug 2023 to Jul 2026. Gas output fell 20% over the last 12 months. 139,746 mcf in the 12 months through Jul 2026, against 174,438 mcf in the 12 months before.Last 12 months: 139,746 mcfmcf per monthbbl per month005,00050010k1,00015k1,50020k2,00025k2,500Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 20% over the last 12 monthsMonthly gas production and oil for HAVEMAN TRUST 01, Aug 2023 to Jul 2026. Gas output fell 20% over the last 12 months. 139,746 mcf in the 12 months through Jul 2026, against 174,438 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month005,00050010k1,00015k1,50020k2,00025k2,500Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

94% of the gas went to a processing plant in the last 12 months

  • Processing plant (3)
  • Lease fuel (1)
94% of the gas went to a processing plant in the last 12 monthsShare of HAVEMAN TRUST 01 gas by disposition code each month, Aug 2023 to Jul 2026. 94% 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
94% of the gas went to a processing plant in the last 12 monthsShare of HAVEMAN TRUST 01 gas by disposition code each month, Aug 2023 to Jul 2026. 94% 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)

    94% · 131,017 mcf

  • Lease fuel (1)

    6.2% · 8,729 mcf

Who has run this lease

The operator changed once, most recently in Mar 2023

Operators of this lease over timeEnsign Operating LLC, Mar 2020 to Feb 2023; Marathon Oil Ef LLC, Mar 2023 to Jul 2026202120222023202420252026Changed Mar 2023Ensign Operating LLCMar 2020 to Feb 2023Marathon Oil Ef LLCMar 2023 to now
Operators of this lease over timeEnsign Operating LLC, Mar 2020 to Feb 2023; Marathon Oil Ef LLC, Mar 2023 to Jul 2026202120222023202420252026Changed Mar 2023Ensign Operating LLCMar 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 HAVEMAN TRUST 01
API numberWell no.Status
42-255-366443HActive

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 LLCCondensateGathers50Mar 20, 2020Mar 1, 2023
Enterprise Crude Oil LLCCondensateGathers25Mar 20, 2020Mar 1, 2023
Enterprise Crude Pipeline LLCCondensateGathers25Mar 20, 2020Mar 1, 2023
Ensign Operating LLCGas-well gasGathers50Mar 20, 2020Mar 1, 2023
Enterprise Products Operating LLCGas-well gasGathers50Mar 20, 2020Mar 1, 2023
Enterprise Products Operating LLCGas-well gasBuys100Mar 20, 2020Mar 1, 2023

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

Who buys my oilOil price check

595.96 acres on the newest permit

Check your decimal on this lease
Permits for Haveman Trust 01
API numberWell no.Acreson the permit
42-255-366443H595.96

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 HAVEMAN TRUST 01
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Marathon Oil60360310,4919,7050$80.46$2.89
Jun 2026Marathon Oil5395399,9809,1740$84.81$3.15
May 2026Marathon Oil63563510,2949,3500$102.13$2.94
Apr 2026Marathon Oil39639611,62510,7020$100.32$2.77
Mar 2026Marathon Oil41841814,23213,3190$91.38$3.04
Feb 2026Marathon Oil86086019,48318,6370$64.51$3.62
Jan 2026Marathon Oil0023230$60.04$7.72
Dec 2025Marathon Oil1821825,6895,3180$57.97$4.26
Nov 2025Marathon Oil53253211,76511,0770$60.06$3.79
Oct 2025Marathon Oil68168112,41111,6990$60.89$3.19
Sep 2025Marathon Oil99599512,30011,6770$63.96$2.97
Aug 2025Marathon Oil1,1691,16921,45320,3360$64.86$2.91
Jul 2025Marathon Oil1,0691,06920,57319,5840$68.39$3.20
Jun 2025Marathon Oil71171120,26419,2560$68.17$3.02
May 2025Marathon Oil82982915,21414,4030$62.17$3.12
Apr 2025Marathon Oil56756714,16113,4900$63.54$3.42
Mar 2025Marathon Oil70170111,63610,9660$68.24$4.12
Feb 2025Marathon Oil83183111,82511,1430$71.53$4.19
Jan 2025Marathon Oil60360315,02814,0770$75.74$4.13
Dec 2024Marathon Oil86786714,07813,3700$70.12$3.01
Nov 2024Marathon Oil82382312,75312,1430$69.95$2.12
Oct 2024Marathon Oil1,3961,39613,86313,0360$71.99$2.20
Sep 2024Marathon Oil61561512,00011,4400$70.24$2.28
Aug 2024Marathon Oil1,2551,25513,04312,5800$76.68$1.99
Jul 2024Marathon Oil1,2251,22514,33613,8570$81.80$2.07
Jun 2024Marathon Oil1,2281,22813,88813,4230$79.77$2.54
May 2024Marathon Oil96996913,27412,8350$80.02$2.12
Apr 2024Marathon Oil89589513,25112,8570$85.35$1.60
Mar 2024Marathon Oil58458413,12412,7110$81.28$1.49
Feb 2024Marathon Oil71671612,20411,8450$77.25$1.72
Jan 2024Marathon Oil75375313,50513,1650$74.15$3.18
Dec 2023Marathon Oil80980914,45514,1580$71.90$2.52
Nov 2023Marathon Oil72972919,08918,7050$77.69$2.71
Oct 2023Marathon Oil93293215,91515,4350$85.64$2.98
Sep 2023Marathon Oil98798715,97715,6560$89.43$2.64
Aug 2023Marathon Oil1,0031,00315,05314,6670$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 LLCFieldSugarkane (Eagle Ford)CountyKarnes County

Marathon Oil Ef LLC in Karnes County

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Sugarkane (Eagle Ford) field

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