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Producing

HOUSTON-HERZOG EC12A

Houston-Herzog Ec12a is an oil lease in Glasscock County, Texas, operated by Pioneer Natural Res. USA, Inc. in the Spraberry (Trend Area) field.

1 well

6,931bbl oil, last 12 months−68% vs prior year
Operator
Pioneer Natural Res. USA, Inc.
County
Glasscock County
Field
Spraberry (Trend Area)
RRC lease
08-56691

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Where it sits

This county

Glasscock CountyGlasscockMitchellMartinSterlingMidlandHowardGlasscock County
Glasscock County
Gas, last 12 months
7,961 mcf
Oil in Jul 2026
841 bbl

Production by month

Oil output fell 68% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 68% over the last 12 monthsMonthly oil production and gas for HOUSTON-HERZOG EC12A, Aug 2023 to Jul 2026. Oil output fell 68% over the last 12 months. 6,931 bbl in the 12 months through Jul 2026, against 21,637 bbl in the 12 months before.Last 12 months: 6,931 bblbbl per monthmcf per month001,0002,0002,0004,0003,0006,0004,0008,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 68% over the last 12 monthsMonthly oil production and gas for HOUSTON-HERZOG EC12A, Aug 2023 to Jul 2026. Oil output fell 68% over the last 12 months. 6,931 bbl in the 12 months through Jul 2026, against 21,637 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month001,0002,0002,0004,0003,0006,0004,0008,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

99% of the gas went to a processing plant in the last 12 months

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
99% of the gas went to a processing plant in the last 12 monthsShare of HOUSTON-HERZOG EC12A gas by disposition code each month, Aug 2023 to Jul 2026. 99% of the gas went to a processing plant in the last 12 months.Share of the lease’s gas by disposition code, per month0%50%100%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
99% of the gas went to a processing plant in the last 12 monthsShare of HOUSTON-HERZOG EC12A gas by disposition code each month, Aug 2023 to Jul 2026. 99% of the gas went to a processing plant in the last 12 months.Share of gas by disposition code0%50%100%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    99% · 9,279 mcf

  • Lease fuel (1)

    0.8% · 77 mcf

  • Flared (4)

    0.3% · 25 mcf

0.3% of the gas flared in the last 12 months. No month above 3%.

1 well on this lease

Wells on HOUSTON-HERZOG EC12A
API numberWell no.Status
42-173-38506301HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Energy Trans Crude Marketing LLCOilGathers34Nov 17, 2021–
Energy Transfer Marketing & TermOilGathers33Dec 1, 2022–
Sunoco Pipeline L.p.OilGathers33Nov 17, 2021–
Targa Pl Mid-Cont Westtex LLCCasinghead gasBuys100Nov 17, 2021–
Targa Pl Mid-Cont Westtex LLCCasinghead gasGathers100Nov 17, 2021–
Sunoco Ptnrs. Mktg.&terminals LPOilGathers33Nov 17, 2021Dec 1, 2022

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

Who buys my oilOil price check

1,121 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 Ec12a
API numberWell no.Acreson the permit
42-173-38506301H1,121

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 EC12A
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20268418363553550$80.46$2.89
Jun 20263223212772750$84.81$3.15
May 20262282283363330$102.13$2.94
Apr 20261581562332301$100.32$2.77
Mar 202608000$91.38$3.04
Feb 20268258251,1031,0911$64.51$3.62
Jan 20263853865155100$60.04$7.72
Dec 20259659641,2881,2770$57.97$4.26
Nov 20258978971,0441,0341$60.06$3.79
Oct 20257737728718630$60.89$3.19
Sep 20258018001,01899614$63.96$2.97
Aug 20257367419219140$64.86$2.91
Jul 20257587641,4201,4018$68.39$3.20
Jun 20252,0602,0587,5527,4930$68.17$3.02
May 20251,9611,9645,9135,8673$62.17$3.12
Apr 20252,4712,4676,6176,47490$63.54$3.42
Mar 20252,1652,1685,1915,07476$68.24$4.12
Feb 20252,0672,0724,2444,2122$71.53$4.19
Jan 20253,7263,7266,5516,5090$75.74$4.13
Dec 20243,9663,9535,7225,6861$70.12$3.01
Nov 20241,6881,6821,6781,6644$69.95$2.12
Oct 202437637442420$71.99$2.20
Sep 202430730664620$70.24$2.28
Aug 202492991581460$76.68$1.99
Jul 20241,3091,3213,0693,0510$81.80$2.07
Jun 20242,5652,5686,0345,98515$79.77$2.54
May 20242,6772,6736,8006,7600$80.02$2.12
Apr 20242,6322,6326,9686,87354$85.35$1.60
Mar 20242,7702,7677,0837,0420$81.28$1.49
Feb 20243,2503,2566,9196,8810$77.25$1.72
Jan 20243,6483,6377,9227,86511$74.15$3.18
Dec 20232,2072,2114,5324,5070$71.90$2.52
Nov 20232,4492,4555,5925,5600$77.69$2.71
Oct 20232,3692,3645,0965,04521$85.64$2.98
Sep 20232,9402,9445,9175,8749$89.43$2.64
Aug 20232,9912,9936,4296,227164$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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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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