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Texas oil lease

Producing

TMK UNIT F

TMK Unit F is an oil lease in Karnes County, Texas, operated by Gulftex Energy, LLC in the Eagleville (Eagle Ford-2) field.

1 well

16,718bbl oil, last 12 months−32% vs prior year
Operator
Gulftex Energy, LLC
County
Karnes County
Field
Eagleville (Eagle Ford-2)
RRC lease
02-12390

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Gas, last 12 months
33,859 mcf
Oil in Jul 2026
1,197 bbl

Production by month

Oil output fell 32% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 32% over the last 12 monthsMonthly oil production and gas for TMK UNIT F, Aug 2023 to Jul 2026. Oil output fell 32% over the last 12 months. 16,718 bbl in the 12 months through Jul 2026, against 24,537 bbl in the 12 months before.Last 12 months: 16,718 bblbbl per monthmcf per month001,0005,0002,00010k3,00015k4,00020k5,00025kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 32% over the last 12 monthsMonthly oil production and gas for TMK UNIT F, Aug 2023 to Jul 2026. Oil output fell 32% over the last 12 months. 16,718 bbl in the 12 months through Jul 2026, against 24,537 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

66% of the gas went to a transmission line in the last 12 months

Flaring peaked at 16.7% of the gas in Jun 2024.

  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
66% of the gas went to a transmission line in the last 12 monthsShare of TMK UNIT F gas by disposition code each month, Aug 2023 to Jul 2026. 66% of the gas went to a transmission line in the last 12 months. Flaring peaked at 16.7% of the gas in Jun 2024.Share of the lease’s gas by disposition code, per month0%50%100%Flared 16.7%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
66% of the gas went to a transmission line in the last 12 monthsShare of TMK UNIT F gas by disposition code each month, Aug 2023 to Jul 2026. 66% of the gas went to a transmission line in the last 12 months. Flaring peaked at 16.7% of the gas in Jun 2024.Share of gas by disposition code0%50%100%Flared 16.7%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    66% · 22,225 mcf

  • Lease fuel (1)

    33% · 11,089 mcf

  • Flared (4)

    1.6% · 545 mcf

1.6% of the gas flared in the last 12 months. 17 months above 3%.

1 well on this lease

Wells on TMK UNIT F
API numberWell no.Status
42-255-372588HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Phillips 66 CompanyOilGathers100Dec 13, 2021
Enterprise Products Operating LLCCasinghead gasBuys75Dec 13, 2021
Energy Transfer CompanyCasinghead gasBuys25Dec 13, 2021
Startex Field Services, LLCCasinghead gasGathers100Dec 13, 2021

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

Who buys my oilOil price check

739.70 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 TMK Unit F
API numberWell no.Acreson the permit
42-255-372588H739.70

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

Unit decimal checker

Estimate your royalty

36 months, newest first

Ledger for TMK UNIT F
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20261,1971,2022,4981,59436$80.46$2.89
Jun 20261,3101,2922,4791,53122$84.81$3.15
May 20261,2211,2192,6391,57985$102.13$2.94
Apr 20261,1561,1842,5461,53123$100.32$2.77
Mar 20261,3691,3622,4731,40739$91.38$3.04
Feb 20261,2941,2902,1621,31715$64.51$3.62
Jan 20261,5041,4953,6422,60230$60.04$7.72
Dec 20251,4311,4243,7692,77815$57.97$4.26
Nov 20251,4741,4793,1312,14096$60.06$3.79
Oct 20251,5621,5683,0382,045104$60.89$3.19
Sep 20251,5311,5212,5491,72244$63.96$2.97
Aug 20251,6691,7402,9331,97936$64.86$2.91
Jul 20251,9271,8612,8941,91824$68.39$3.20
Jun 20251,8101,8172,9832,04323$68.17$3.02
May 20251,8141,8323,1662,16148$62.17$3.12
Apr 20251,8291,8222,9742,03862$63.54$3.42
Mar 20251,9692,0212,8861,90574$68.24$4.12
Feb 20251,8091,7693,1932,195126$71.53$4.19
Jan 20251,9752,0053,7682,518282$75.74$4.13
Dec 20242,2032,1803,9842,91295$70.12$3.01
Nov 20242,0562,0943,5102,441152$69.95$2.12
Oct 20242,4092,3703,5592,53178$71.99$2.20
Sep 20242,2392,2752,7591,78494$70.24$2.28
Aug 20242,4972,5263,0371,948173$76.68$1.99
Jul 20242,4942,4793,5792,271375$81.80$2.07
Jun 20242,4312,3944,2642,643713$79.77$2.54
May 20242,6142,5914,5082,855720$80.02$2.12
Apr 20242,6682,71923,55821,713866$85.35$1.60
Mar 20242,8422,7974,4353,303139$81.28$1.49
Feb 20242,9973,0775,0893,352141$77.25$1.72
Jan 20243,1833,1624,9213,649247$74.15$3.18
Dec 20233,4163,4175,1033,737371$71.90$2.52
Nov 20233,4883,5394,9213,689144$77.69$2.71
Oct 20234,1994,1233,7483,65395$85.64$2.98
Sep 20234,7514,7584,7274,431296$89.43$2.64
Aug 20232,5282,5963,2831,809433$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

OperatorGulftex Energy, LLCFieldEagleville (Eagle Ford-2)CountyKarnes County

Gulftex Energy, LLC in Karnes County

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