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Producing

PFEIFER-WHITLEY MEJOR SA

Pfeifer-Whitley Mejor Sa is an oil lease in Karnes County, Texas, operated by Marathon Oil Ef LLC in the Eagleville (Eagle Ford-2) field.

1 well

31,608bbl oil, last 12 months−37% vs prior year
Operator
Marathon Oil Ef LLC
County
Karnes County
Field
Eagleville (Eagle Ford-2)
RRC lease
02-12731

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Gas, last 12 months
71,202 mcf
Oil in Jul 2026
1,755 bbl

Production by month

Oil output fell 37% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 37% over the last 12 monthsMonthly oil production and gas for PFEIFER-WHITLEY MEJOR SA, Mar 2024 to Jul 2026. Oil output fell 37% over the last 12 months. 31,608 bbl in the 12 months through Jul 2026, against 50,407 bbl in the 12 months before.Last 12 months: 31,608 bblbbl per monthmcf per month0010k10k20k20k30k30k40k40kApr 24JulOctJan 25AprJulOctJan 26AprJul
Oil output fell 37% over the last 12 monthsMonthly oil production and gas for PFEIFER-WHITLEY MEJOR SA, Mar 2024 to Jul 2026. Oil output fell 37% over the last 12 months. 31,608 bbl in the 12 months through Jul 2026, against 50,407 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month0010k10k20k20k30k30k40k40kJul 24Jan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

89% of the gas went to a processing plant in the last 12 months

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
89% of the gas went to a processing plant in the last 12 monthsShare of PFEIFER-WHITLEY MEJOR SA gas by disposition code each month, Mar 2024 to Jul 2026. 89% 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%Apr 24JulOctJan 25AprJulOctJan 26AprJul
89% of the gas went to a processing plant in the last 12 monthsShare of PFEIFER-WHITLEY MEJOR SA gas by disposition code each month, Mar 2024 to Jul 2026. 89% of the gas went to a processing plant in the last 12 months.Share of gas by disposition code0%50%100%Jul 24Jan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    89% · 63,489 mcf

  • Lease fuel (1)

    10% · 7,322 mcf

  • Flared (4)

    0.5% · 391 mcf

0.5% of the gas flared in the last 12 months. No month above 3%.

1 well on this lease

Wells on PFEIFER-WHITLEY MEJOR SA
API numberWell no.Status
42-255-378211HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Enterprise Crude Oil LLCOilGathers34Nov 5, 2023
Endeavor Crude, LLCOilGathers33Nov 5, 2023
Trafigura Trading LLCOilGathers33Nov 5, 2023
Marathon Oil Ef LLCCasinghead gasBuys100Nov 5, 2023
Marathon Oil Ef LLCCasinghead gasGathers100Nov 5, 2023

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

Who buys my oilOil price check

561.88 acres on the newest permit

  • Worth asking

    An allocation well is on this lease

    A well drilled across several tracts shares its production by an allocation formula, so the decimal is not always your acres over the unit acres. Ask the operator for the allocation formula and the tract factor for your land.

  • Worth asking

    A Rule 37 case is listed

    The RRC permit records list a Rule 37 case. This does not establish your royalty share. Ask for the permit and unit plat for your well.

Check your decimal on this lease
Permits for Pfeifer-Whitley Mejor Sa
API numberWell no.Acreson the permit
42-255-378211H561.88

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

29 months, newest first

Ledger for PFEIFER-WHITLEY MEJOR SA
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20261,7551,7664,6124,05420$80.46$2.89
Jun 20262,2572,2594,5844,04016$84.81$3.15
May 20262,2532,2644,4533,86724$102.13$2.94
Apr 20262,2132,1965,4114,87420$100.32$2.77
Mar 20261,7591,7603,9683,53415$91.38$3.04
Feb 20261,6531,6565,8105,15927$64.51$3.62
Jan 20263,0003,0055,3274,73123$60.04$7.72
Dec 20253,0343,0385,7785,02848$57.97$4.26
Nov 20253,0353,0346,6475,92139$60.06$3.79
Oct 20253,2543,2577,5906,85718$60.89$3.19
Sep 20253,4463,4428,9818,18139$63.96$2.97
Aug 20253,9493,9588,0417,243102$64.86$2.91
Jul 20254,3954,4059,5928,77841$68.39$3.20
Jun 20256,7856,74310,9369,91982$68.17$3.02
May 20254654627176506$62.17$3.12
Apr 202500000$63.54$3.42
Mar 202501000$68.24$4.12
Feb 20251982243723361$71.53$4.19
Jan 20253,7093,7118,4267,67729$75.74$4.13
Dec 20245,4885,48912,32411,28824$70.12$3.01
Nov 20246,1846,18214,13212,99539$69.95$2.12
Oct 20246,8526,84817,41016,15145$71.99$2.20
Sep 20247,3817,43219,44118,04836$70.24$2.28
Aug 20248,9508,92026,78624,92956$76.68$1.99
Jul 202411,10211,11436,79134,10063$81.80$2.07
Jun 202413,23713,28221,23419,65336$79.77$2.54
May 202417,27817,30232,30129,93866$80.02$2.12
Apr 202427,48327,46333,00430,422277$85.35$1.60
Mar 202421,94821,84222,30221,65837$81.28$1.49

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 LLCFieldEagleville (Eagle Ford-2)CountyKarnes County

Marathon Oil Ef LLC in Karnes County

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