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Producing

MEDINA-JONAS C-B SA

Medina-Jonas C-B Sa is an oil lease in Karnes County, Texas, operated by Marathon Oil Ef LLC in the Eagleville (Eagle Ford-2) field.

1 well

10,081bbl oil, last 12 months−20% vs prior year
Operator
Marathon Oil Ef LLC
County
Karnes County
Field
Eagleville (Eagle Ford-2)
RRC lease
02-11474

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Gas, last 12 months
13,808 mcf
Oil in Jul 2026
921 bbl

Production by month

Oil output fell 20% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 20% over the last 12 monthsMonthly oil production and gas for MEDINA-JONAS C-B SA, Aug 2023 to Jul 2026. Oil output fell 20% over the last 12 months. 10,081 bbl in the 12 months through Jul 2026, against 12,549 bbl in the 12 months before.Last 12 months: 10,081 bblbbl per monthmcf per month005001,0001,0002,0001,5003,0002,0004,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 20% over the last 12 monthsMonthly oil production and gas for MEDINA-JONAS C-B SA, Aug 2023 to Jul 2026. Oil output fell 20% over the last 12 months. 10,081 bbl in the 12 months through Jul 2026, against 12,549 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month005001,0001,0002,0001,5003,0002,0004,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Dec 2023 the lease's gas goes to a processing plant instead of lease fuel

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
Since Dec 2023 the lease's gas goes to a processing plant instead of lease fuelShare of MEDINA-JONAS C-B SA gas by disposition code each month, Aug 2023 to Jul 2026. Since Dec 2023 the lease's gas goes to a processing plant instead of lease fuel.Share of the lease’s gas by disposition code, per month0%50%100%Dec 2023: fuel to plantOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Dec 2023 the lease's gas goes to a processing plant instead of lease fuelShare of MEDINA-JONAS C-B SA gas by disposition code each month, Aug 2023 to Jul 2026. Since Dec 2023 the lease's gas goes to a processing plant instead of lease fuel.Share of gas by disposition code0%50%100%Dec 23: fuel to plantJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    71% · 9,810 mcf

  • Lease fuel (1)

    28% · 3,846 mcf

  • Flared (4)

    1.1% · 152 mcf

1.1% of the gas flared in the last 12 months. No month above 3%.

1 well on this lease

Wells on MEDINA-JONAS C-B SA
API numberWell no.Status
42-255-355041HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Endeavor Crude, LLCOilGathers25Jan 1, 2024–
Enterprise Crude Oil LLCOilGathers25Nov 1, 2021–
Genesis Crude Oil, L.p.OilGathers25Jan 1, 2024–
Statewide Crude Inc.OilGathers25Jan 1, 2024–
Marathon Oil Ef LLCCasinghead gasBuys100Sep 6, 2017–
Marathon Oil Ef LLCCasinghead gasGathers100Sep 6, 2017–
Dks Transport LLCOilGathers25Nov 1, 2021Jan 1, 2024
Harvest Midstream CompanyOilGathers25Nov 1, 2021Jan 1, 2024
Trafigura Trading LLCOilGathers25Nov 1, 2021Jan 1, 2024
Harvest Midstream CompanyOilGathers20Sep 1, 2018Nov 1, 2021
Marathon Oil Ef LLCOilGathers1Sep 6, 2017Nov 1, 2021
Shell Trading (Us) CompanyOilGathers3Sep 6, 2017Nov 1, 2021

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

Who buys my oilOil price check

719.88 acres on the newest permit

  • Worth asking

    A production sharing agreement well is on this lease

    A production sharing agreement divides production by a method the agreement sets. Ask the operator for the agreement and the tract percentage it gives 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 Medina-Jonas C-B Sa
API numberWell no.Acreson the permit
42-255-355041H719.88

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

36 months, newest first

Ledger for MEDINA-JONAS C-B SA
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20269219331,10663713$80.46$2.89
Jun 20261,2141,1892,1151,37327$84.81$3.15
May 202618820324150$102.13$2.94
Apr 20269369321,5071,02616$100.32$2.77
Mar 20268238291,27487822$91.38$3.04
Feb 20261,1261,1121511063$64.51$3.62
Jan 202634134447341$60.04$7.72
Dec 20257357391,13785812$57.97$4.26
Nov 20258418441,4321,07317$60.06$3.79
Oct 20259969921,8171,35413$60.89$3.19
Sep 20251,0041,0031,5541,1827$63.96$2.97
Aug 20259569621,6441,27421$64.86$2.91
Jul 20251,0251,0201,5211,16215$68.39$3.20
Jun 20259099091,26896412$68.17$3.02
May 20251,0151,0261,5261,17414$62.17$3.12
Apr 20258408271,24296312$63.54$3.42
Mar 20259949991,4281,0789$68.24$4.12
Feb 20251,0831,0751,2349369$71.53$4.19
Jan 202565365685641$75.74$4.13
Dec 20241,0151,0134953843$70.12$3.01
Nov 20249939941,6751,3318$69.95$2.12
Oct 20241,2161,2182,5942,08016$71.99$2.20
Sep 20241,3111,3122,1051,67614$70.24$2.28
Aug 20241,4951,4901,4941,19111$76.68$1.99
Jul 20241,1131,1131,1909709$81.80$2.07
Jun 20241,1931,1941,9031,59111$79.77$2.54
May 20241,2911,2911,7211,4649$80.02$2.12
Apr 20241,2371,2371,3941,16816$85.35$1.60
Mar 20241,3471,3441,7571,4998$81.28$1.49
Feb 20249469471,7601,40119$77.25$1.72
Jan 202454354360937011$74.15$3.18
Dec 20231,3691,3671,5731,00120$71.90$2.52
Nov 20231,1171,11783328620$77.69$2.71
Oct 20231,2001,19996941911$85.64$2.98
Sep 20231,0351,04273817411$89.43$2.64
Aug 20231,4701,4652,3721,80514$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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