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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

45,354mcf gas, last 12 months−42% vs prior year
Operator
Marathon Oil Ef LLC
County
Karnes County
Field
Sugarkane (Eagle Ford)
RRC lease
02-289824

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Oil, last 12 months
5,481 bbl
Gas in Jul 2026
3,294 mcf

Production by month

Gas output fell 42% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 42% over the last 12 monthsMonthly gas production and oil for HAVEMAN TRUST 01, Aug 2023 to Jul 2026. Gas output fell 42% over the last 12 months. 45,354 mcf in the 12 months through Jul 2026, against 77,613 mcf in the 12 months before.Last 12 months: 45,354 mcfmcf per monthbbl per month005,00050010k1,00015k1,50020k2,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 42% over the last 12 monthsMonthly gas production and oil for HAVEMAN TRUST 01, Aug 2023 to Jul 2026. Gas output fell 42% over the last 12 months. 45,354 mcf in the 12 months through Jul 2026, against 77,613 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month005,00050010k1,00015k1,50020k2,000Jan 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% · 53,956 mcf

  • Lease fuel (1)

    6.0% · 3,465 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
42-255-366454HActive

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
42-255-366454H595.96

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 Oil9549543,2943,0480$80.46$2.89
Jun 2026Marathon Oil1,4871,4873,5583,2730$84.81$3.15
May 2026Marathon Oil1,3161,3164,0643,6940$102.13$2.94
Apr 2026Marathon Oil4204204,2783,9390$100.32$2.77
Mar 2026Marathon Oil3293295,6175,2570$91.38$3.04
Feb 2026Marathon Oil2172173,8223,6560$64.51$3.62
Jan 2026Marathon Oil00000$60.04$7.72
Dec 2025Marathon Oil1131131,4311,3380$57.97$4.26
Nov 2025Marathon Oil1481482,0841,9620$60.06$3.79
Oct 2025Marathon Oil2072072,4082,2700$60.89$3.19
Sep 2025Marathon Oil2272273,0392,8850$63.96$2.97
Aug 2025Marathon Oil636311,75911,1470$64.86$2.91
Jul 2025Marathon Oil10510512,06711,4870$68.39$3.20
Jun 2025Marathon Oil989811,36410,7990$68.17$3.02
May 2025Marathon Oil6386389,5509,0410$62.17$3.12
Apr 2025Marathon Oil2902908,0547,6720$63.54$3.42
Mar 2025Marathon Oil4584584,7654,4910$68.24$4.12
Feb 2025Marathon Oil3833835,1284,8330$71.53$4.19
Jan 2025Marathon Oil2342345,2654,9320$75.74$4.13
Dec 2024Marathon Oil1781783,6323,4490$70.12$3.01
Nov 2024Marathon Oil2032033,6173,4440$69.95$2.12
Oct 2024Marathon Oil3563564,8684,5780$71.99$2.20
Sep 2024Marathon Oil3013014,3694,1650$70.24$2.28
Aug 2024Marathon Oil3573574,9344,7590$76.68$1.99
Jul 2024Marathon Oil4704705,8235,6290$81.80$2.07
Jun 2024Marathon Oil6316315,5675,3810$79.77$2.54
May 2024Marathon Oil3603605,8905,6950$80.02$2.12
Apr 2024Marathon Oil4394396,2836,0960$85.35$1.60
Mar 2024Marathon Oil3733737,7957,5580$81.28$1.49
Feb 2024Marathon Oil5885889,0588,8020$77.25$1.72
Jan 2024Marathon Oil5565568,3298,1290$74.15$3.18
Dec 2023Marathon Oil74074012,91312,6380$71.90$2.52
Nov 2023Marathon Oil52652614,04213,7590$77.69$2.71
Oct 2023Marathon Oil57957911,01610,6820$85.64$2.98
Sep 2023Marathon Oil41141111,72711,4890$89.43$2.64
Aug 2023Marathon Oil61561511,25610,9660$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)CountyKarnes County

Marathon Oil Ef LLC in Karnes County

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Sugarkane (Eagle Ford) field

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