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Texas oil lease

Producing

CORTEZ 'F'

Cortez 'F' is an oil lease in McMullen County, Texas, operated by Trinity Operating (Usg), LLC in the Eagleville (Eagle Ford-1) field.

2 wells

4,998bbl oil, last 12 months−36% vs prior year
Operator
Trinity Operating (Usg), LLC
County
McMullen County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-16804

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Where it sits

This county

McMullen CountyMcMullenLa SalleAtascosaKarnesFrioLive OakMcMullen County
McMullen County
Gas, last 12 months
4,682 mcf
Oil in Jul 2026
347 bbl

Production by month

Oil output fell 36% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 36% over the last 12 monthsMonthly oil production and gas for CORTEZ 'F', Aug 2023 to Jul 2026. Oil output fell 36% over the last 12 months. 4,998 bbl in the 12 months through Jul 2026, against 7,789 bbl in the 12 months before.Last 12 months: 4,998 bblbbl per monthmcf per month002505005001,0007501,5001,0002,0001,2502,500Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 36% over the last 12 monthsMonthly oil production and gas for CORTEZ 'F', Aug 2023 to Jul 2026. Oil output fell 36% over the last 12 months. 4,998 bbl in the 12 months through Jul 2026, against 7,789 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002505005001,0007501,5001,0002,0001,2502,500Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Sep 2024 the lease's gas goes to a processing plant instead of lease fuel

Flaring peaked at 13.9% of the gas in Jan 2026.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
Since Sep 2024 the lease's gas goes to a processing plant instead of lease fuelShare of CORTEZ 'F' gas by disposition code each month, Aug 2023 to Jul 2026. Since Sep 2024 the lease's gas goes to a processing plant instead of lease fuel. Flaring peaked at 13.9% of the gas in Jan 2026.Share of the lease’s gas by disposition code, per month0%50%100%Sep 2024: fuel to plantFlared 13.9%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Sep 2024 the lease's gas goes to a processing plant instead of lease fuelShare of CORTEZ 'F' gas by disposition code each month, Aug 2023 to Jul 2026. Since Sep 2024 the lease's gas goes to a processing plant instead of lease fuel. Flaring peaked at 13.9% of the gas in Jan 2026.Share of gas by disposition code0%50%100%Sep 24: fuel to plantFlared 13.9%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    81% · 3,811 mcf

  • Lease fuel (1)

    15% · 685 mcf

  • Flared (4)

    4.0% · 186 mcf

4.0% of the gas flared in the last 12 months. 11 months above 3%.

2 wells on this lease

Wells on CORTEZ 'F'
API numberWell no.Status
42-311-348581HActive
42-311-348592HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Plains Marketing, L.p.OilGathers100Jan 1, 2026–
Energy Transfer CompanyCasinghead gasBuys100Jan 1, 2026–
Energy Transfer CompanyCasinghead gasGathers100Jan 1, 2026–
Eastex Crude Company, LLCOilGathers100Jan 1, 2023Jan 1, 2026
Bp Products North America Inc.OilGathers100Jul 1, 2022Jan 1, 2023
Plains Marketing, L.p.OilGathers100Jan 1, 2022Jul 1, 2022
Bp Products North America Inc.OilGathers100Jan 1, 2021Jan 1, 2022
Gulfmark Energy, Inc.OilGathers100May 1, 2020Jan 1, 2021
Energy Transfer CompanyCasinghead gasGathers100Nov 1, 2015May 1, 2020

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

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357.24 acres on the newest permit

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Permits for Cortez 'F'
API numberWell no.Acreson the permit
42-311-348581H357.24
42-311-348592H357.24

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

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36 months, newest first

Ledger for CORTEZ 'F'
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 202634734533419039$80.46$2.89
Jun 20263112933042201$84.81$3.15
May 20262673122621676$102.13$2.94
Apr 20264154132471973$100.32$2.77
Mar 202648146937825249$91.38$3.04
Feb 202636937322517515$64.51$3.62
Jan 202637939128121139$60.04$7.72
Dec 20253613343032994$57.97$4.26
Nov 20255966116926709$60.06$3.79
Oct 20255044984373796$60.89$3.19
Sep 20255785778997844$63.96$2.97
Aug 202539038232026711$64.86$2.91
Jul 20255986398747650$68.39$3.20
Jun 20256205999508020$68.17$3.02
May 20256636541,00577942$62.17$3.12
Apr 20256646731,0889470$63.54$3.42
Mar 20257157391,0889352$68.24$4.12
Feb 20256947041,0509240$71.53$4.19
Jan 20256496669688339$75.74$4.13
Dec 20246986741,08092020$70.12$3.01
Nov 20247226921,2391,00713$69.95$2.12
Oct 20241,0621,0381,4081,25711$71.99$2.20
Sep 202434934792677741$70.24$2.28
Aug 202435536784315373$76.68$1.99
Jul 20245585721,1335753$81.80$2.07
Jun 20246356511,21752975$79.77$2.54
May 20246736411,188828126$80.02$2.12
Apr 20247788161,2201,08725$85.35$1.60
Mar 20249089201,3421,10115$81.28$1.49
Feb 20247196808427180$77.25$1.72
Jan 202456958769459811$74.15$3.18
Dec 20235525507176462$71.90$2.52
Nov 202356253191978948$77.69$2.71
Oct 202336437691977015$85.64$2.98
Sep 20235435666435569$89.43$2.64
Aug 20236115941,1951,11923$81.39$2.58

Flared above 3%

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Oct 2, 2026.

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This lease belongs to

OperatorTrinity Operating (Usg), LLCFieldEagleville (Eagle Ford-1)CountyMcMullen County

Trinity Operating (Usg), LLC in McMullen County

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