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Texas oil lease

Producing

KOELZER -A-

Koelzer -A- is an oil lease in Cooke County, Texas, operated by Grewing, Herman Operating, Inc. in the Cooke County Regular field.

6 wells

590bbl oil, last 12 months−9% vs prior year
Operator
Grewing, Herman Operating, Inc.
County
Cooke County
Field
Cooke County Regular
RRC lease
09-02083

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Where it sits

This county

Cooke CountyCookeMontagueGraysonCooke County
Cooke County
Oil in Jul 2026
54 bbl
Reporting since
Jan 2020

Production by month

Oil output fell 9% over the last 12 months

  • Oil (bars)
  • Last 12 months
Oil output fell 9% over the last 12 monthsMonthly oil production for KOELZER -A-, Aug 2023 to Jul 2026. Oil output fell 9% over the last 12 months. 590 bbl in the 12 months through Jul 2026, against 645 bbl in the 12 months before.Last 12 months: 590 bblbbl per month0255075100125Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 9% over the last 12 monthsMonthly oil production for KOELZER -A-, Aug 2023 to Jul 2026. Oil output fell 9% over the last 12 months. 590 bbl in the 12 months through Jul 2026, against 645 bbl in the 12 months before.Last 12 monthsbbl per month0255075100125Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

No gas disposition reported for this lease

The operator has not reported where the gas went in the months we hold.

6 wells on this lease

Wells on KOELZER -A-
API numberWell no.Status
42-097-807741 AActive
42-097-807752 BActive
42-097-807763 AActive
42-097-807773 BActive
42-097-807784 AActive
42-097-807795 AActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Ptt Premier Trading and Tran LLCOilGathers100Nov 1, 2023–
Gulfmark Energy, Inc.OilGathers100Oct 1, 2018Nov 1, 2023

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

Who buys my oilOil price check

What the drilling permits say

Permits for Koelzer -A-
API numberWell no.Acreson the permit
42-097-807741 A–
42-097-807752 B–
42-097-807763 A–
42-097-807773 B–
42-097-807784 A–
42-097-807795 A–

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

Unit decimal checker

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36 months, newest first

Ledger for KOELZER -A-
MonthOil producedbblOil soldbblWTI$/bblHenry Hub$/MMBtu
Jul 2026540$80.46$2.89
Jun 202641150$84.81$3.15
May 2026390$102.13$2.94
Apr 2026640$100.32$2.77
Mar 202647152$91.38$3.04
Feb 2026480$64.51$3.62
Jan 2026290$60.04$7.72
Dec 2025510$57.97$4.26
Nov 202553165$60.06$3.79
Oct 2025580$60.89$3.19
Sep 2025580$63.96$2.97
Aug 202548160$64.86$2.91
Jul 2025540$68.39$3.20
Jun 202577174$68.17$3.02
May 2025530$62.17$3.12
Apr 2025510$63.54$3.42
Mar 2025390$68.24$4.12
Feb 2025210$71.53$4.19
Jan 20252173$75.74$4.13
Dec 2024690$70.12$3.01
Nov 2024700$69.95$2.12
Oct 202465162$71.99$2.20
Sep 2024250$70.24$2.28
Aug 2024119160$76.68$1.99
Jul 2024660$81.80$2.07
Jun 2024560$79.77$2.54
May 202428147$80.02$2.12
Apr 2024690$85.35$1.60
Mar 2024740$81.28$1.49
Feb 202467150$77.25$1.72
Jan 2024470$74.15$3.18
Dec 202373165$71.90$2.52
Nov 2023570$77.69$2.71
Oct 2023620$85.64$2.98
Sep 202355165$89.43$2.64
Aug 2023700$81.39$2.58

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

OperatorGrewing, Herman Operating, Inc.FieldCooke County RegularCountyCooke County

Grewing, Herman Operating, Inc. in Cooke County

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