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Producing

HOUSTON-HERZOG W12A

Houston-Herzog W12a is an oil lease in Glasscock County, Texas, operated by Pioneer Natural Res. USA, Inc. in the Spraberry (Trend Area) field.

1 well

35,104bbl oil, last 12 months−28% vs prior year
Operator
Pioneer Natural Res. USA, Inc.
County
Glasscock County
Field
Spraberry (Trend Area)
RRC lease
08-54880

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Where it sits

This county

Glasscock CountyGlasscockMitchellMartinSterlingMidlandHowardGlasscock County
Glasscock County
Gas, last 12 months
41,933 mcf
Oil in Jul 2026
3,387 bbl

Production by month

Oil output fell 28% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 28% over the last 12 monthsMonthly oil production and gas for HOUSTON-HERZOG W12A, Aug 2023 to Jul 2026. Oil output fell 28% over the last 12 months. 35,104 bbl in the 12 months through Jul 2026, against 48,580 bbl in the 12 months before.Last 12 months: 35,104 bblbbl per monthmcf per month002,5005,0005,00010k7,50015k10k20kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 28% over the last 12 monthsMonthly oil production and gas for HOUSTON-HERZOG W12A, Aug 2023 to Jul 2026. Oil output fell 28% over the last 12 months. 35,104 bbl in the 12 months through Jul 2026, against 48,580 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002,5005,0005,00010k7,50015k10k20kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

94% of the gas went to a processing plant in the last 12 months

Flaring peaked at 3.5% of the gas in Sep 2025.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
94% of the gas went to a processing plant in the last 12 monthsShare of HOUSTON-HERZOG W12A gas by disposition code each month, Aug 2023 to Jul 2026. 94% of the gas went to a processing plant in the last 12 months. Flaring peaked at 3.5% of the gas in Sep 2025.Share of the lease’s gas by disposition code, per month0%50%100%Flared 3.5%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
94% of the gas went to a processing plant in the last 12 monthsShare of HOUSTON-HERZOG W12A gas by disposition code each month, Aug 2023 to Jul 2026. 94% of the gas went to a processing plant in the last 12 months. Flaring peaked at 3.5% of the gas in Sep 2025.Share of gas by disposition code0%50%100%Flared 3.5%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    94% · 39,465 mcf

  • Lease fuel (1)

    5.7% · 2,409 mcf

  • Flared (4)

    0.1% · 59 mcf

0.1% of the gas flared in the last 12 months. One month above 3%.

1 well on this lease

Wells on HOUSTON-HERZOG W12A
API numberWell no.Status
42-173-382921HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Sunoco Pipeline L.p.OilGathers50Jul 1, 2021–
Energy Trans Crude Marketing LLCOilGathers25Jul 1, 2021–
Energy Transfer Marketing & TermOilGathers25Dec 1, 2022–
Targa Pl Mid-Cont Westtex LLCCasinghead gasBuys100Sep 6, 2020–
Targa Pl Mid-Cont Westtex LLCCasinghead gasGathers100Sep 6, 2020–
Sunoco Ptnrs. Mktg.&terminals LPOilGathers25Jul 1, 2021Dec 1, 2022
Sunoco Pipeline L.p.OilGathers80Sep 6, 2020Jul 1, 2021
Sunoco Ptnrs. Mktg.&terminals LPOilGathers20Sep 6, 2020Jul 1, 2021

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

Who buys my oilOil price check

1,383.30 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 Houston-Herzog W12a
API numberWell no.Acreson the permit
42-173-382921H1,383.30

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

Unit decimal checker

Estimate your royalty

36 months, newest first

Ledger for HOUSTON-HERZOG W12A
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20263,3873,3846,0275,5690$80.46$2.89
Jun 20263,3633,3685,5555,1200$84.81$3.15
May 20264,0064,0225,6655,1980$102.13$2.94
Apr 20263,6573,6324,4584,10610$100.32$2.77
Mar 20263,6053,6124,4184,3830$91.38$3.04
Feb 20263,4073,4453,8293,7904$64.51$3.62
Jan 20263,6263,5914,1554,1130$60.04$7.72
Dec 20253,9103,8813,7983,5152$57.97$4.26
Nov 20257367426856281$60.06$3.79
Oct 20251,1971,2041,0049130$60.89$3.19
Sep 20252,3462,3421,2081,07842$63.96$2.97
Aug 20251,8641,8781,1311,0520$64.86$2.91
Jul 20252,0892,0913,0112,97019$68.39$3.20
Jun 20253,9053,8987,0717,0200$68.17$3.02
May 20253,2883,2985,4975,4582$62.17$3.12
Apr 20254,6434,6298,7538,569116$63.54$3.42
Mar 20253,1283,1525,8965,76685$68.24$4.12
Feb 20255,3605,35210,18210,1066$71.53$4.19
Jan 20256,2376,2209,9639,8991$75.74$4.13
Dec 20243,5423,5365,1985,1651$70.12$3.01
Nov 20242,6722,6944,4504,41012$69.95$2.12
Oct 20244,0934,0786,6556,455156$71.99$2.20
Sep 20244,5354,5377,7957,67373$70.24$2.28
Aug 20245,0885,0958,7288,66510$76.68$1.99
Jul 20245,2675,27910,60210,5400$81.80$2.07
Jun 20245,5895,59511,52611,43428$79.77$2.54
May 20245,7745,77011,73611,6671$80.02$2.12
Apr 20246,5826,58612,68012,51097$85.35$1.60
Mar 20247,3517,33912,65712,5870$81.28$1.49
Feb 20247,7667,77611,54211,4810$77.25$1.72
Jan 20248,2288,1949,2179,15712$74.15$3.18
Dec 20232,6052,6161,9461,9370$71.90$2.52
Nov 20233,9983,9843,9263,9060$77.69$2.71
Oct 20231,1291,1481,3901,3775$85.64$2.98
Sep 20235,2905,3028,1178,06111$89.43$2.64
Aug 20236,1486,1529,6699,373240$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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Nearby

This lease belongs to

OperatorPioneer Natural Res. USA, Inc.FieldSpraberry (Trend Area)CountyGlasscock County

Pioneer Natural Res. USA, Inc. in Glasscock County

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Spraberry (Trend Area) field

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