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YOSKO BORGFELD-YOSKO UNIT SA

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

1 well

17,235bbl oil, last 12 months−35% vs prior year
Operator
Marathon Oil Ef LLC
County
Karnes County
Field
Eagleville (Eagle Ford-2)
RRC lease
02-12081

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Gas, last 12 months
39,740 mcf
Oil in Jul 2026
0 bbl

Checks stopped on this lease?

  • Sales

    No sales reported for the last 2 months of state data (through Jul 2026).

  • Sales

    Sales over the last 3 months fell to 1% of the 9 months before.

SourceRailroad Commission production, P-5 and P-4 records, data through Jul 2026.

See why checks stop on this lease

Production by month

Oil output fell 35% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 35% over the last 12 monthsMonthly oil production and gas for YOSKO BORGFELD-YOSKO UNIT SA, Aug 2023 to Jul 2026. Oil output fell 35% over the last 12 months. 17,235 bbl in the 12 months through Jul 2026, against 26,448 bbl in the 12 months before.Last 12 months: 17,235 bblbbl per monthmcf per month001,0002,5002,0005,0003,0007,5004,00010k5,00012.5kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 35% over the last 12 monthsMonthly oil production and gas for YOSKO BORGFELD-YOSKO UNIT SA, Aug 2023 to Jul 2026. Oil output fell 35% over the last 12 months. 17,235 bbl in the 12 months through Jul 2026, against 26,448 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month001,0002,5002,0005,0003,0007,5004,00010k5,00012.5kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

66% of the gas went to a processing plant in the last 12 months

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
66% of the gas went to a processing plant in the last 12 monthsShare of YOSKO BORGFELD-YOSKO UNIT SA gas by disposition code each month, Aug 2023 to Jul 2026. 66% 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
66% of the gas went to a processing plant in the last 12 monthsShare of YOSKO BORGFELD-YOSKO UNIT SA gas by disposition code each month, Aug 2023 to Jul 2026. 66% 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)

    66% · 40,748 mcf

  • Lease fuel (1)

    33% · 20,155 mcf

  • Flared (4)

    1.0% · 638 mcf

1.0% of the gas flared in the last 12 months. No month above 3%.

1 well on this lease

Wells on YOSKO BORGFELD-YOSKO UNIT SA
API numberWell no.Status
42-255-369191HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Enterprise Crude Oil LLCOilGathers25Jul 1, 2022–
Harvest Midstream CompanyOilGathers25Jul 1, 2022–
Reynolds Energy Transport LLCOilGathers25Jul 1, 2022–
Trafigura Trading LLCOilGathers25Jul 1, 2022–
Marathon Oil Ef LLCCasinghead gasBuys100Jul 31, 2020–
Marathon Oil Ef LLCCasinghead gasGathers100Jul 31, 2020–
Enterprise Crude Oil LLCOilGathers1Jul 31, 2020Jul 1, 2022
Gulfmark Energy, Inc.OilGathers1Jul 31, 2020Jul 1, 2022
Harvest Midstream CompanyOilGathers97Jul 31, 2020Jul 1, 2022
Trafigura Trading LLCOilGathers1Jul 31, 2020Jul 1, 2022

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

Who buys my oilOil price check

557.27 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 Yosko Borgfeld-Yosko Unit Sa
API numberWell no.Acreson the permit
42-255-369191H557.27

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 YOSKO BORGFELD-YOSKO UNIT SA
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 202600000$80.46$2.89
Jun 202600000$84.81$3.15
May 2026064000$102.13$2.94
Apr 20262,2052,2114,0872,98458$100.32$2.77
Mar 20262,4512,4265,4353,94260$91.38$3.04
Feb 20261,7491,7334,1723,24850$64.51$3.62
Jan 20261,6081,6593,8732,96248$60.04$7.72
Dec 20253,2663,2516,3354,83655$57.97$4.26
Nov 20252,9552,8907,7495,21056$60.06$3.79
Oct 2025033000$60.89$3.19
Sep 20251,4221,4233,8862,49158$63.96$2.97
Aug 20251,5791,5804,2032,45773$64.86$2.91
Jul 20251,7431,7424,5892,56252$68.39$3.20
Jun 20251,7611,7534,6182,50540$68.17$3.02
May 20251,6921,6925,6113,25938$62.17$3.12
Apr 20251,9912,0066,9834,29250$63.54$3.42
Mar 20252,6182,6087,3914,54839$68.24$4.12
Feb 20252,4462,4767,5744,65844$71.53$4.19
Jan 20252,5722,5558,7655,34465$75.74$4.13
Dec 20242,2722,2626,5304,20030$70.12$3.01
Nov 20242,2122,2197,2924,87248$69.95$2.12
Oct 20242,3422,3428,3655,64738$71.99$2.20
Sep 20242,3512,3498,4535,89730$70.24$2.28
Aug 20242,4482,4429,3326,14453$76.68$1.99
Jul 20242,7622,76112,3188,26835$81.80$2.07
Jun 20242,3912,4166,0213,63425$79.77$2.54
May 20242,4372,4285,6023,47452$80.02$2.12
Apr 20242,3002,2795,8913,554131$85.35$1.60
Mar 20242,2102,2045,6223,52365$81.28$1.49
Feb 20241,4761,4902,7511,92542$77.25$1.72
Jan 20242,0882,0875,6944,63079$74.15$3.18
Dec 20232,1462,1445,2824,33234$71.90$2.52
Nov 20232,2652,2725,1034,25537$77.69$2.71
Oct 20232,7772,7767,2606,30235$85.64$2.98
Sep 20232,8122,8266,9606,15320$89.43$2.64
Aug 20233,4533,4497,9777,13432$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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