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Texas oil lease

Producing

YOSKO UNIT

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

4 wells

7,680bbl oil, last 12 months−26% vs prior year
Operator
Marathon Oil Ef LLC
County
Karnes County
Field
Eagleville (Eagle Ford-2)
RRC lease
02-09848

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Gas, last 12 months
5,404 mcf
Oil in Jul 2026
749 bbl

Production by month

Oil output fell 26% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 26% over the last 12 monthsMonthly oil production and gas for YOSKO UNIT, Aug 2023 to Jul 2026. Oil output fell 26% over the last 12 months. 7,680 bbl in the 12 months through Jul 2026, against 10,386 bbl in the 12 months before.Last 12 months: 7,680 bblbbl per monthmcf per month001,0005,0002,00010k3,00015k4,00020k5,00025kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 26% over the last 12 monthsMonthly oil production and gas for YOSKO UNIT, Aug 2023 to Jul 2026. Oil output fell 26% over the last 12 months. 7,680 bbl in the 12 months through Jul 2026, against 10,386 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month001,0005,0002,00010k3,00015k4,00020k5,00025kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

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

Flaring peaked at 3.2% of the gas in Aug 2023.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
Since Nov 2023 the lease's gas goes to a processing plant instead of lease fuelShare of YOSKO UNIT gas by disposition code each month, Aug 2023 to Jul 2026. Since Nov 2023 the lease's gas goes to a processing plant instead of lease fuel. Flaring peaked at 3.2% of the gas in Aug 2023.Share of the lease’s gas by disposition code, per month0%50%100%Nov 2023: fuel to plantFlared 3.2%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Nov 2023 the lease's gas goes to a processing plant instead of lease fuelShare of YOSKO UNIT gas by disposition code each month, Aug 2023 to Jul 2026. Since Nov 2023 the lease's gas goes to a processing plant instead of lease fuel. Flaring peaked at 3.2% of the gas in Aug 2023.Share of gas by disposition code0%50%100%Nov 23: fuel to plantFlared 3.2%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    69% · 3,704 mcf

  • Lease fuel (1)

    30% · 1,645 mcf

  • Flared (4)

    1.0% · 55 mcf

1.0% of the gas flared in the last 12 months. One month above 3%.

4 wells on this lease

Wells on YOSKO UNIT
API numberWell no.Status
42-255-317921HShut-in
42-255-333552HActive
42-255-333563HShut-in
42-255-339434HShut-in

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 LLCOilGathers25Jan 1, 2024–
Genesis Crude Oil, L.p.OilGathers25Jan 1, 2024–
Statewide Crude Inc.OilGathers25Jan 1, 2024–
Marathon Oil Ef LLCCasinghead gasBuys100Nov 12, 2014–
Marathon Oil Ef LLCCasinghead gasGathers100Nov 12, 2014–
Dks Transport LLCOilGathers20Jul 1, 2022Jan 1, 2024
Enterprise Crude Oil LLCOilGathers20Jul 1, 2022Jan 1, 2024
Harvest Midstream CompanyOilGathers20Jul 1, 2022Jan 1, 2024
Reynolds Energy Transport LLCOilGathers20Jul 1, 2022Jan 1, 2024
Trafigura Trading LLCOilGathers20Jul 1, 2022Jan 1, 2024
Enterprise Crude Oil LLCOilGathers1Sep 1, 2018Jul 1, 2022

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

Who buys my oilOil price check

267.97 acres on the newest permit

A pooling certificate was filed

Permits for Yosko Unit
API numberWell no.Acreson the permit
42-255-339434H267.97
42-255-333552H267.97
42-255-333563H267.97
42-255-317921H268.24

SourceRailroad Commission drilling permits, Sep 26, 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 YOSKO UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20267497447134946$80.46$2.89
Jun 20267577617635514$84.81$3.15
May 20267597464943735$102.13$2.94
Apr 20268608773052234$100.32$2.77
Mar 20261,4891,4541831332$91.38$3.04
Feb 20262652591761372$64.51$3.62
Jan 2026545872551$60.04$7.72
Dec 202518719893711$57.97$4.26
Nov 20257197245873954$60.06$3.79
Oct 20258088018495517$60.89$3.19
Sep 202560359866842810$63.96$2.97
Aug 20254304335012939$64.86$2.91
Jul 20256086105693186$68.39$3.20
Jun 20257447516623596$68.17$3.02
May 20251,3851,3781,44884110$62.17$3.12
Apr 20251,0781,0801,34682710$63.54$3.42
Mar 20259879752081281$68.24$4.12
Feb 202534335726160$71.53$4.19
Jan 20257397392,0271,23615$75.74$4.13
Dec 20249519422,0461,3169$70.12$3.01
Nov 20245996035323554$69.95$2.12
Oct 20247627646564433$71.99$2.20
Sep 20248538597915523$70.24$2.28
Aug 20241,3371,3311,2278087$76.68$1.99
Jul 20241,2281,2381,3599124$81.80$2.07
Jun 20241,8771,91214,1948,56560$79.77$2.54
May 20242,5862,55914,2108,812132$80.02$2.12
Apr 20241,5691,56111,2486,786250$85.35$1.60
Mar 20242,0172,01314,1018,836164$81.28$1.49
Feb 20241,4591,4687,9025,160141$77.25$1.72
Jan 20241,8111,8189,6286,957197$74.15$3.18
Dec 20232,3422,33511,7088,723105$71.90$2.52
Nov 20232,1652,16313,76110,957121$77.69$2.71
Oct 20232,0172,0302,90849184$85.64$2.98
Sep 20233,0253,0462,68553349$89.43$2.64
Aug 20234,1174,0992,53330182$81.39$2.58

Flared above 3%

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Sep 28, 2026.

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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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