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Texas gas well

Producing

WESSENDORFF 01

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

1 well

12,285mcf gas, last 12 months−54% vs prior year
Operator
Marathon Oil Ef LLC
County
Karnes County
Field
Sugarkane (Eagle Ford)
RRC lease
02-277735

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Oil, last 12 months
780 bbl
Gas in Jul 2026
1 mcf

Production by month

Gas output fell 54% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 54% over the last 12 monthsMonthly gas production and oil for WESSENDORFF 01, Aug 2023 to Jul 2026. Gas output fell 54% over the last 12 months. 12,285 mcf in the 12 months through Jul 2026, against 26,910 mcf in the 12 months before.Last 12 months: 12,285 mcfmcf per monthbbl per month001,0002002,0004003,0006004,0008005,0001,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 54% over the last 12 monthsMonthly gas production and oil for WESSENDORFF 01, Aug 2023 to Jul 2026. Gas output fell 54% over the last 12 months. 12,285 mcf in the 12 months through Jul 2026, against 26,910 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month001,0002002,0004003,0006004,0008005,0001,000Jan 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 WESSENDORFF 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 WESSENDORFF 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% · 11,487 mcf

  • Lease fuel (1)

    6.5% · 798 mcf

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 WESSENDORFF 01
API numberWell no.Status
42-255-3359311HActive

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

704 acres on the newest permit

Check your decimal on this lease
Permits for Wessendorff 01
API numberWell no.Acreson the permit
42-255-3359311H704

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 WESSENDORFF 01
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Marathon Oil77110$80.46$2.89
Jun 2026Marathon Oil20205164740$84.81$3.15
May 2026Marathon Oil2592592,5182,2880$102.13$2.94
Apr 2026Marathon Oil373754500$100.32$2.77
Mar 2026Marathon Oil212131290$91.38$3.04
Feb 2026Marathon Oil161622210$64.51$3.62
Jan 2026Marathon Oil33220$60.04$7.72
Dec 2025Marathon Oil71711,4901,3930$57.97$4.26
Nov 2025Marathon Oil81812,1402,0150$60.06$3.79
Oct 2025Marathon Oil85852,2862,1550$60.89$3.19
Sep 2025Marathon Oil1031031,6911,6050$63.96$2.97
Aug 2025Marathon Oil77771,5341,4540$64.86$2.91
Jul 2025Marathon Oil1361361,9801,8850$68.39$3.20
Jun 2025Marathon Oil1381382,1932,0840$68.17$3.02
May 2025Marathon Oil1211212,4022,2740$62.17$3.12
Apr 2025Marathon Oil2592592,3392,2280$63.54$3.42
Mar 2025Marathon Oil3133132,4232,2840$68.24$4.12
Feb 2025Marathon Oil2182182,3292,1950$71.53$4.19
Jan 2025Marathon Oil2172172,7492,5760$75.74$4.13
Dec 2024Marathon Oil2662664,0353,8320$70.12$3.01
Nov 2024Marathon Oil2022022,9672,8250$69.95$2.12
Oct 2024Marathon Oil22110$71.99$2.20
Sep 2024Marathon Oil1071071,1201,0680$70.24$2.28
Aug 2024Marathon Oil3283282,3722,2880$76.68$1.99
Jul 2024Marathon Oil4674673,6183,4970$81.80$2.07
Jun 2024Marathon Oil4724724,2474,1050$79.77$2.54
May 2024Marathon Oil3653653,0342,9340$80.02$2.12
Apr 2024Marathon Oil4304303,0342,9440$85.35$1.60
Mar 2024Marathon Oil5445443,1333,0340$81.28$1.49
Feb 2024Marathon Oil4984982,8822,7970$77.25$1.72
Jan 2024Marathon Oil5345343,9703,8740$74.15$3.18
Dec 2023Marathon Oil4914913,1693,1040$71.90$2.52
Nov 2023Marathon Oil4554553,1593,0960$77.69$2.71
Oct 2023Marathon Oil4694692,9862,8960$85.64$2.98
Sep 2023Marathon Oil4054051,2271,2030$89.43$2.64
Aug 2023Marathon Oil4934931,6851,6420$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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