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Producing

MCWILLIAMS-SOT-SARTAIN EF

McWilliams-Sot-Sartain Ef is an oil lease in Frio County, Texas, operated by Trailblazer Energy Resources,llc in the Briscoe Ranch (Eagleford) field.

1 well

5,954bbl oil, last 12 months−8% vs prior year
RRC lease
01-19731

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Where it sits

This county

Frio CountyFrioZavalaAtascosaUvaldeMedinaBexarFrio County
Frio County
Gas, last 12 months
28,613 mcf
Oil in Jul 2026
441 bbl

Production by month

Oil output fell 8% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 8% over the last 12 monthsMonthly oil production and gas for MCWILLIAMS-SOT-SARTAIN EF, Aug 2023 to Jul 2026. Oil output fell 8% over the last 12 months. 5,954 bbl in the 12 months through Jul 2026, against 6,503 bbl in the 12 months before.Last 12 months: 5,954 bblbbl per monthmcf per month002001,0004002,0006003,0008004,0001,0005,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 8% over the last 12 monthsMonthly oil production and gas for MCWILLIAMS-SOT-SARTAIN EF, Aug 2023 to Jul 2026. Oil output fell 8% over the last 12 months. 5,954 bbl in the 12 months through Jul 2026, against 6,503 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002001,0004002,0006003,0008004,0001,0005,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Jul 2026 the lease's gas goes to a processing plant instead of lease fuel

  • Processing plant (3)
  • Lease fuel (1)
Since Jul 2026 the lease's gas goes to a processing plant instead of lease fuelShare of MCWILLIAMS-SOT-SARTAIN EF gas by disposition code each month, Aug 2023 to Jul 2026. Since Jul 2026 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%Jul 2026: fuel to plantOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Jul 2026 the lease's gas goes to a processing plant instead of lease fuelShare of MCWILLIAMS-SOT-SARTAIN EF gas by disposition code each month, Aug 2023 to Jul 2026. Since Jul 2026 the lease's gas goes to a processing plant instead of lease fuel.Share of gas by disposition code0%50%100%Jul 26: fuel to plantJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    90% · 28,886 mcf

  • Lease fuel (1)

    10% · 3,224 mcf

Who has run this lease

The operator changed once, most recently in Sep 2023

Operators of this lease over timeVirtex Operating Company, Inc., Jan 2020 to Aug 2023; Trailblazer Energy Resources,llc, Sep 2023 to Jul 20262020202120222023202420252026Changed Sep 2023Virtex Operating Company, Inc.Jan 2020 to Aug 2023Trailblazer Energy Resources,…Sep 2023 to now
Operators of this lease over timeVirtex Operating Company, Inc., Jan 2020 to Aug 2023; Trailblazer Energy Resources,llc, Sep 2023 to Jul 20262020202120222023202420252026Changed Sep 2023Virtex Operating Company, Inc.Jan 2020 to Aug 2023Trailblazer Energy Resources,llcSep 2023 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on MCWILLIAMS-SOT-SARTAIN EF
API numberWell no.Status
42-163-341801HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Shell Trading (Us) CompanyOilGathers100Sep 1, 2023–
Targa Frio Lasalle Pipeline LPCasinghead gasBuys60Sep 1, 2023–
Et Gathering & Processing LLCCasinghead gasBuys40Nov 1, 2023–
Targa Frio Lasalle Pipeline LPCasinghead gasGathers60Sep 1, 2023–
Energy Transfer CompanyCasinghead gasGathers40Sep 1, 2023–
Energy Transfer CompanyCasinghead gasBuys40Sep 1, 2023Nov 1, 2023
Faraday Midstream CompanyCasinghead gasGathers100Jul 5, 2019Sep 1, 2023
Energy Transfer CompanyCasinghead gasBuys20Jan 1, 2023Sep 1, 2023
Targa Midstream Services LLCCasinghead gasBuys80Jan 1, 2023Sep 1, 2023
Eastex Crude Company, LLCOilGathers100Jan 1, 2023Sep 1, 2023
Energy Transfer CompanyCasinghead gasBuys30Jul 5, 2019Jan 1, 2023

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

937.14 acres on the newest permit

Permits for McWilliams-Sot-Sartain Ef
API numberWell no.Acreson the permit
42-163-341801H937.14

SourceRailroad Commission drilling permits, Oct 3, 2026 (source 1, source 2).

Estimate your royalty

36 months, newest first

Ledger for MCWILLIAMS-SOT-SARTAIN EF
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Trailblazer Energy4413602,4312,0590$80.46$2.89
Jun 2026Trailblazer Energy46866537200$84.81$3.15
May 2026Trailblazer Energy6994972,4632,0910$102.13$2.94
Apr 2026Trailblazer Energy280334000$100.32$2.77
Mar 2026Trailblazer Energy5226843,2942,9220$91.38$3.04
Feb 2026Trailblazer Energy4533432,0781,9400$64.51$3.62
Jan 2026Trailblazer Energy5285263,0972,8950$60.04$7.72
Dec 2025Trailblazer Energy5335253,0992,8970$57.97$4.26
Nov 2025Trailblazer Energy5235292,7202,5090$60.06$3.79
Oct 2025Trailblazer Energy4655072,7112,4960$60.89$3.19
Sep 2025Trailblazer Energy5085143,4163,2010$63.96$2.97
Aug 2025Trailblazer Energy5345192,9322,6490$64.86$2.91
Jul 2025Trailblazer Energy5436903,4973,2270$68.39$3.20
Jun 2025Trailblazer Energy5823473,1112,8320$68.17$3.02
May 2025Trailblazer Energy4885033,0382,8450$62.17$3.12
Apr 2025Trailblazer Energy6486882,8142,5890$63.54$3.42
Mar 2025Trailblazer Energy2833283,0662,8320$68.24$4.12
Feb 2025Trailblazer Energy5115263,3803,1640$71.53$4.19
Jan 2025Trailblazer Energy5775174,2073,6860$75.74$4.13
Dec 2024Trailblazer Energy5175122,8542,3330$70.12$3.01
Nov 2024Trailblazer Energy5966922,1171,9600$69.95$2.12
Oct 2024Trailblazer Energy5825122,3602,0500$71.99$2.20
Sep 2024Trailblazer Energy5245211,9011,6540$70.24$2.28
Aug 2024Trailblazer Energy6526658257600$76.68$1.99
Jul 2024Trailblazer Energy6396886705890$81.80$2.07
Jun 2024Trailblazer Energy6806887826880$79.77$2.54
May 2024Trailblazer Energy6314996295620$80.02$2.12
Apr 2024Trailblazer Energy6316887046460$85.35$1.60
Mar 2024Trailblazer Energy5855305434940$81.28$1.49
Feb 2024Trailblazer Energy5405629309300$77.25$1.72
Jan 2024Trailblazer Energy8297421,6951,4250$74.15$3.18
Dec 2023Trailblazer Energy3415661,8601,7390$71.90$2.52
Nov 2023Trailblazer Energy8617331,2211,0690$77.69$2.71
Oct 2023Trailblazer Energy6305441,2091,0560$85.64$2.98
Sep 2023Trailblazer Energy6107491,1441,0240$89.43$2.64
Aug 2023Virtex Operating7706652,0282,0280$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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Trailblazer Energy Resources,llc in Frio County

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