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Producing

TMK UNIT B

TMK Unit B is an oil lease in Karnes County, Texas, operated by Gulftex Energy, LLC in the Sugarkane (Austin Chalk) field.

1 well

14,151bbl oil, last 12 months−22% vs prior year
Operator
Gulftex Energy, LLC
County
Karnes County
Field
Sugarkane (Austin Chalk)
RRC lease
02-12388

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Gas, last 12 months
118,186 mcf
Oil in Jul 2026
999 bbl

Production by month

Oil output fell 22% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 22% over the last 12 monthsMonthly oil production and gas for TMK UNIT B, Aug 2023 to Jul 2026. Oil output fell 22% over the last 12 months. 14,151 bbl in the 12 months through Jul 2026, against 18,175 bbl in the 12 months before.Last 12 months: 14,151 bblbbl per monthmcf per month001,00010k2,00020k3,00030k4,00040k5,00050kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 22% over the last 12 monthsMonthly oil production and gas for TMK UNIT B, Aug 2023 to Jul 2026. Oil output fell 22% over the last 12 months. 14,151 bbl in the 12 months through Jul 2026, against 18,175 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month001,00010k2,00020k3,00030k4,00040k5,00050kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

89% of the gas went to a transmission line in the last 12 months

Flaring peaked at 10.2% of the gas in Jan 2025.

  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
89% of the gas went to a transmission line in the last 12 monthsShare of TMK UNIT B gas by disposition code each month, Aug 2023 to Jul 2026. 89% of the gas went to a transmission line in the last 12 months. Flaring peaked at 10.2% of the gas in Jan 2025.Share of the lease’s gas by disposition code, per month0%50%100%Flared 10.2%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
89% of the gas went to a transmission line in the last 12 monthsShare of TMK UNIT B gas by disposition code each month, Aug 2023 to Jul 2026. 89% of the gas went to a transmission line in the last 12 months. Flaring peaked at 10.2% of the gas in Jan 2025.Share of gas by disposition code0%50%100%Flared 10.2%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    89% · 104,606 mcf

  • Lease fuel (1)

    9.4% · 11,085 mcf

  • Flared (4)

    2.1% · 2,495 mcf

2.1% of the gas flared in the last 12 months. 12 months above 3%.

1 well on this lease

Wells on TMK UNIT B
API numberWell no.Status
42-255-37162103HActive

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

940.37 acres on the newest permit

A production sharing agreement well is on this lease

Permits for TMK Unit B
API numberWell no.Acreson the permit
42-255-37162103H940.37

SourceRailroad Commission drilling permits, Sep 26, 2026 (source 1, source 2).

Unit decimal checker

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36 months, newest first

Ledger for TMK UNIT B
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20269991,0049,6508,590193$80.46$2.89
Jun 20261,0841,0658,9407,903111$84.81$3.15
May 20261,0421,0418,8487,465408$102.13$2.94
Apr 20261,0571,0849,0297,915122$100.32$2.77
Mar 20261,2191,2139,7708,506237$91.38$3.04
Feb 20261,1181,1138,1927,28973$64.51$3.62
Jan 20261,3371,32813,84312,663170$60.04$7.72
Dec 20251,3371,33010,0579,03249$57.97$4.26
Nov 20251,5921,5979,8508,602354$60.06$3.79
Oct 20251,2391,2459,6628,379394$60.89$3.19
Sep 20251,0331,0239,3878,383222$63.96$2.97
Aug 20251,0941,16510,9589,879162$64.86$2.91
Jul 20251,2801,21410,8839,808123$68.39$3.20
Jun 20251,2341,24010,7639,735111$68.17$3.02
May 20251,2821,30111,74810,566225$62.17$3.12
Apr 20251,3841,37712,11610,930312$63.54$3.42
Mar 20251,4271,47913,58612,199480$68.24$4.12
Feb 20251,3631,32311,55710,115570$71.53$4.19
Jan 20251,3871,40214,19611,7871,441$75.74$4.13
Dec 20241,6011,57815,07213,640455$70.12$3.01
Nov 20241,6201,67314,88913,289684$69.95$2.12
Oct 20241,9231,87816,36914,949470$71.99$2.20
Sep 20241,7671,80815,87114,153837$70.24$2.28
Aug 20241,9071,93717,19216,104173$76.68$1.99
Jul 20241,9351,91917,87116,564374$81.80$2.07
Jun 20241,9411,90417,63516,015712$79.77$2.54
May 20242,1892,16618,53916,886720$80.02$2.12
Apr 20242,5242,57518,22716,382866$85.35$1.60
Mar 20242,3362,29121,03619,905139$81.28$1.49
Feb 20242,3272,40721,65319,957140$77.25$1.72
Jan 20242,8602,83924,36323,091247$74.15$3.18
Dec 20233,9543,95626,87525,509371$71.90$2.52
Nov 20233,2413,29328,62427,392144$77.69$2.71
Oct 20233,8303,75434,97929,88495$85.64$2.98
Sep 20234,5284,53629,75424,459295$89.43$2.64
Aug 20233,9684,03622,53621,063433$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

OperatorGulftex Energy, LLCFieldSugarkane (Austin Chalk)CountyKarnes County

Gulftex Energy, LLC in Karnes County

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