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Royalty Clerk

Texas gas well

Producing

WESSENDORFF 02

Wessendorff 02 is a gas well in Karnes County, Texas, operated by Marathon Oil Ef LLC in the Sugarkane (Eagle Ford) field.

1 well

34,199mcf gas, last 12 months0% vs prior year
RRC lease
02-271423

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Oil, last 12 months
4,721 bbl
Gas in Jul 2026
1,061 mcf

Production by month

Gas output held steady over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output held steady over the last 12 monthsMonthly gas production and oil for WESSENDORFF 02, Aug 2023 to Jul 2026. Gas output held steady over the last 12 months. 34,199 mcf in the 12 months through Jul 2026, against 34,205 mcf in the 12 months before.Last 12 months: 34,199 mcfmcf per monthbbl per month002,0002004,0004006,0006008,000800Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output held steady over the last 12 monthsMonthly gas production and oil for WESSENDORFF 02, Aug 2023 to Jul 2026. Gas output held steady over the last 12 months. 34,199 mcf in the 12 months through Jul 2026, against 34,205 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month002,0002004,0004006,0006008,000800Jan 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 02 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 02 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% · 32,248 mcf

  • Lease fuel (1)

    5.7% · 1,951 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 02
API numberWell no.Status
42-255-3299703HActive

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).

451.79 acres on the newest permit

Permits for Wessendorff 02
API numberWell no.Acreson the permit
42-255-3299703H451.79

SourceRailroad Commission drilling permits, Oct 3, 2026 (source 1, source 2).

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 02
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Marathon Oil76761,0619830$80.46$2.89
Jun 2026Marathon Oil3723723,1282,7990$84.81$3.15
May 2026Marathon Oil3803802,5622,3850$102.13$2.94
Apr 2026Marathon Oil3503502,0961,9800$100.32$2.77
Mar 2026Marathon Oil4424423,5813,3870$91.38$3.04
Feb 2026Marathon Oil3143142,8532,7060$64.51$3.62
Jan 2026Marathon Oil2592591,9641,8600$60.04$7.72
Dec 2025Marathon Oil2892893,0152,8660$57.97$4.26
Nov 2025Marathon Oil4464462,9182,7620$60.06$3.79
Oct 2025Marathon Oil5805803,4293,2340$60.89$3.19
Sep 2025Marathon Oil5655653,7033,5430$63.96$2.97
Aug 2025Marathon Oil6486483,8893,7430$64.86$2.91
Jul 2025Marathon Oil4584584,0053,8750$68.39$3.20
Jun 2025Marathon Oil5655654,1974,1010$68.17$3.02
May 2025Marathon Oil4584583,7513,6720$62.17$3.12
Apr 2025Marathon Oil6126125,4145,3080$63.54$3.42
Mar 2025Marathon Oil00000$68.24$4.12
Feb 2025Marathon Oil5585583,3863,3390$71.53$4.19
Jan 2025Marathon Oil5115113,1603,1260$75.74$4.13
Dec 2024Marathon Oil1141143313280$70.12$3.01
Nov 2024Marathon Oil66666226160$69.95$2.12
Oct 2024Marathon Oil3283281,1201,1000$71.99$2.20
Sep 2024Marathon Oil6846844,1994,1220$70.24$2.28
Aug 2024Marathon Oil5635634,0203,9370$76.68$1.99
Jul 2024Marathon Oil5465464,3264,3260$81.80$2.07
Jun 2024Marathon Oil7147145,0535,0360$79.77$2.54
May 2024Marathon Oil7517514,9194,8980$80.02$2.12
Apr 2024Marathon Oil5005003,4973,4640$85.35$1.60
Mar 2024Marathon Oil00000$81.28$1.49
Feb 2024Marathon Oil1971971,4501,3820$77.25$1.72
Jan 2024Marathon Oil5775773,2313,1010$74.15$3.18
Dec 2023Marathon Oil5675673,9283,7670$71.90$2.52
Nov 2023Marathon Oil7017015,0334,8520$77.69$2.71
Oct 2023Marathon Oil67672051980$85.64$2.98
Sep 2023Marathon Oil3533539469180$89.43$2.64
Aug 2023Marathon Oil5855854,7134,5770$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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Marathon Oil Ef LLC in Karnes County

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