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Texas oil lease

Producing

BROWN-DUPNIK B UNIT

Brown-Dupnik B Unit is an oil lease in Karnes County, Texas, operated by Marathon Oil Ef LLC in the Eagleville (Eagle Ford-2) field.

3 wells

19,477bbl oil, last 12 months−54% vs prior year
Operator
Marathon Oil Ef LLC
County
Karnes County
Field
Eagleville (Eagle Ford-2)
RRC lease
02-10435

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Gas, last 12 months
33,449 mcf
Oil in Jul 2026
934 bbl

Production by month

Oil output fell 54% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 54% over the last 12 monthsMonthly oil production and gas for BROWN-DUPNIK B UNIT, Aug 2023 to Jul 2026. Oil output fell 54% over the last 12 months. 19,477 bbl in the 12 months through Jul 2026, against 42,764 bbl in the 12 months before.Last 12 months: 19,477 bblbbl per monthmcf per month002,0002,5004,0005,0006,0007,5008,00010k10k12.5kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 54% over the last 12 monthsMonthly oil production and gas for BROWN-DUPNIK B UNIT, Aug 2023 to Jul 2026. Oil output fell 54% over the last 12 months. 19,477 bbl in the 12 months through Jul 2026, against 42,764 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002,0002,5004,0005,0006,0007,5008,00010k10k12.5kJan 24JulJan 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 BROWN-DUPNIK B UNIT gas by disposition code each month, Aug 2023 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%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
89% of the gas went to a processing plant in the last 12 monthsShare of BROWN-DUPNIK B UNIT gas by disposition code each month, Aug 2023 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%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    89% · 29,733 mcf

  • Lease fuel (1)

    11% · 3,521 mcf

  • Flared (4)

    0.6% · 195 mcf

0.6% of the gas flared in the last 12 months. No month above 3%.

3 wells on this lease

Wells on BROWN-DUPNIK B UNIT
API numberWell no.Status
42-255-328981HActive
42-255-373172HShut-in
42-255-373183HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Statewide Crude Inc.OilGathers50Jul 1, 2022–
Plains Pipeline L.p.OilGathers25Jul 1, 2022–
Reynolds Energy Transport LLCOilGathers25Jul 1, 2022–
Marathon Oil Ef LLCCasinghead gasBuys100Feb 12, 2013–
Marathon Oil Ef LLCCasinghead gasGathers100Feb 12, 2013–
Gulfmark Energy, Inc.OilGathers10Feb 12, 2013Jul 1, 2022
Statewide Crude Inc.OilGathers90Feb 12, 2013Jul 1, 2022

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

Who buys my oilOil price check

292.48 acres on the newest permit

  • Good to know

    The wells on this lease state different acreage

    The permits state between 292.48 and 292.51 acres. Use the acres from your own division order for the well you are paid on.

Check your decimal on this lease
Permits for Brown-Dupnik B Unit
API numberWell no.Acreson the permit
42-255-373172H292.48
42-255-373183H292.48
42-255-328981H292.51

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 BROWN-DUPNIK B UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20269349421,2491,0985$80.46$2.89
Jun 20261,3661,3621,6951,4946$84.81$3.15
May 20269099291,1891,0336$102.13$2.94
Apr 20261,9491,9383,4023,06512$100.32$2.77
Mar 20261,9461,9422,9022,58511$91.38$3.04
Feb 20261,3681,3622,3472,08411$64.51$3.62
Jan 20261,1111,1242,7382,43212$60.04$7.72
Dec 20252,5382,5455,1904,51643$57.97$4.26
Nov 20252,8802,8646,3555,66137$60.06$3.79
Oct 20251,3521,3461,9501,7615$60.89$3.19
Sep 20255245361,1021,0045$63.96$2.97
Aug 20252,6002,6063,3303,00042$64.86$2.91
Jul 20252,8252,8233,5933,28815$68.39$3.20
Jun 20253,2443,2435,3064,81240$68.17$3.02
May 20253,5813,5765,4114,90543$62.17$3.12
Apr 20253,4473,4484,8854,44416$63.54$3.42
Mar 20253,6283,6264,5774,12913$68.24$4.12
Feb 20252,9082,9253,7803,4149$71.53$4.19
Jan 20254,2274,2206,6356,04523$75.74$4.13
Dec 20244,5374,5335,6895,21111$70.12$3.01
Nov 20244,0684,0595,0794,67014$69.95$2.12
Oct 20242,5792,5795,2784,89614$71.99$2.20
Sep 20243,3043,3303,7933,5217$70.24$2.28
Aug 20244,4164,3955,7795,37812$76.68$1.99
Jul 20243,8733,8754,8054,4548$81.80$2.07
Jun 20244,1874,1915,1294,7479$79.77$2.54
May 20243,7753,7714,4474,1229$80.02$2.12
Apr 20243,8153,8155,2814,76048$85.35$1.60
Mar 20243,6683,6685,4375,01419$81.28$1.49
Feb 20243,1913,1934,6644,24417$77.25$1.72
Jan 20244,2324,2255,8025,16834$74.15$3.18
Dec 20233,1693,1755,7375,21237$71.90$2.52
Nov 20231,6851,6782,5302,23826$77.69$2.71
Oct 20233,5633,5686,4055,52615$85.64$2.98
Sep 20232,3262,3325,5084,72513$89.43$2.64
Aug 20235,9065,91811,46710,21324$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 LLCFieldEagleville (Eagle Ford-2)CountyKarnes County

Marathon Oil Ef LLC in Karnes County

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Eagleville (Eagle Ford-2) field

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