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Texas gas well

Producing

ISAACS-SIMPSON

Isaacs-Simpson is a gas well in Hemphill County, Texas, operated by Mountainside Energy Operating, L in the Canadian, Se (Douglas) field.

1 well

7,921mcf gas, last 12 months−17% vs prior year
Operator
Mountainside Energy Operating, L
County
Hemphill County
Field
Canadian, Se (Douglas)
RRC lease
10-058785

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Where it sits

This county

Hemphill CountyHemphillLipscombRobertsOchiltreeHemphill County
Hemphill County
Gas in Jun 2026
653 mcf
Reporting since
Jan 2020

Checks stopped on this lease?

  • Operator

    Operator changed: Mountainside Energy Operating, L took over from Highmark Energy Operating, LLC in Feb 2026.

SourceRailroad Commission production, P-5 and P-4 records, data through Jul 2026.

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Production by month

Gas output fell 17% over the last 12 months

Jul 2026 was not reported.

  • Gas (bars)
  • Last 12 months
Gas output fell 17% over the last 12 monthsMonthly gas production for ISAACS-SIMPSON, Aug 2023 to Jul 2026. Gas output fell 17% over the last 12 months. 7,199 mcf in the 12 months through Jul 2026, against 8,693 mcf in the 12 months before.Last 12 months: 7,199 mcfmcf per month02505007501,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 17% over the last 12 monthsMonthly gas production for ISAACS-SIMPSON, Aug 2023 to Jul 2026. Gas output fell 17% over the last 12 months. 7,199 mcf in the 12 months through Jul 2026, against 8,693 mcf in the 12 months before.Last 12 monthsmcf per month02505007501,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

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

All of the gas went to a transmission line in the last 12 monthsShare of ISAACS-SIMPSON gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a transmission line in the last 12 months.Share of the lease’s gas by disposition code, per month0%50%100%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
All of the gas went to a transmission line in the last 12 monthsShare of ISAACS-SIMPSON gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a transmission line 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.

Who has run this lease

The operator changed 2 times, most recently in Feb 2026

Operators of this lease over timePantera Energy Company, Jan 2020 to Jul 2021; Highmark Energy Operating, LLC, Aug 2021 to Jan 2026; Mountainside Energy Operating, L, Feb 2026 to Jun 20262020202120222023202420252026Changed Aug 2021Changed Feb 2026Pantera Energy CompanyJan 2020 to Jul 2021Highmark Energy Operating, LLCAug 2021 to Jan 2026Mountainside Energy Operating…Feb 2026 to now
Operators of this lease over timePantera Energy Company, Jan 2020 to Jul 2021; Highmark Energy Operating, LLC, Aug 2021 to Jan 2026; Mountainside Energy Operating, L, Feb 2026 to Jun 20262020202120222023202420252026Changed Aug 2021Changed Feb 2026Pantera Energy CompanyJan 2020 to Jul 2021Highmark Energy Operating, LLCAug 2021 to Jan 2026Mountainside Energy Operating, LFeb 2026 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on ISAACS-SIMPSON
API numberWell no.Status
42-211-303791214Shut-in

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Mission Petroleum Carriers, Inc.CondensateGathers100Aug 1, 2021–
Southwest Energy, L.p.Gas-well gasBuys100Aug 1, 2021–
Energy Transfer CompanyGas-well gasGathers100Aug 1, 2021–
Valero Marketing and Supply Co.CondensateGathers100Jan 1, 2003Aug 1, 2021
Targa Midstream Services LLCGas-well gasGathers100Oct 1, 2011Aug 1, 2021
Targa Midstream Services LLCGas-well gasBuys100Oct 1, 2011Aug 1, 2021

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

Who buys my oilOil price check

What the drilling permits say

  • Good to know

    The state has no unit acreage for this lease

    Ask the operator for the acreage on your well's division order and unit plat.

Check your decimal on this lease
Permits for Isaacs-Simpson
API numberWell no.Acreson the permit
42-211-303791214–

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

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36 months, newest first

Ledger for ISAACS-SIMPSON
MonthGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026No report–––$80.46$2.89
Jun 2026Mountainside Energy6536530$84.81$3.15
May 2026Mountainside Energy6766760$102.13$2.94
Apr 2026Mountainside Energy6836830$100.32$2.77
Mar 2026Mountainside Energy6896890$91.38$3.04
Feb 2026Mountainside Energy4384380$64.51$3.62
Jan 2026Highmark Energy6566560$60.04$7.72
Dec 2025Highmark Energy6626620$57.97$4.26
Nov 2025Highmark Energy6606600$60.06$3.79
Oct 2025Highmark Energy7017010$60.89$3.19
Sep 2025Highmark Energy6776770$63.96$2.97
Aug 2025Highmark Energy7047040$64.86$2.91
Jul 2025Highmark Energy7227220$68.39$3.20
Jun 2025Highmark Energy7007000$68.17$3.02
May 2025Highmark Energy7217210$62.17$3.12
Apr 2025Highmark Energy6986980$63.54$3.42
Mar 2025Highmark Energy7347340$68.24$4.12
Feb 2025Highmark Energy6656650$71.53$4.19
Jan 2025Highmark Energy7127120$75.74$4.13
Dec 2024Highmark Energy7287280$70.12$3.01
Nov 2024Highmark Energy7267260$69.95$2.12
Oct 2024Highmark Energy7637630$71.99$2.20
Sep 2024Highmark Energy7467460$70.24$2.28
Aug 2024Highmark Energy7787780$76.68$1.99
Jul 2024Highmark Energy7957950$81.80$2.07
Jun 2024Highmark Energy7757750$79.77$2.54
May 2024Highmark Energy8088080$80.02$2.12
Apr 2024Highmark Energy7897890$85.35$1.60
Mar 2024Highmark Energy8218210$81.28$1.49
Feb 2024Highmark Energy7607600$77.25$1.72
Jan 2024Highmark Energy8378370$74.15$3.18
Dec 2023Highmark Energy8628620$71.90$2.52
Nov 2023Highmark Energy8258250$77.69$2.71
Oct 2023Highmark Energy9139130$85.64$2.98
Sep 2023Highmark Energy8878870$89.43$2.64
Aug 2023Highmark Energy9319310$81.39$2.58

No report filed

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

OperatorMountainside Energy Operating, LFieldCanadian, Se (Douglas)CountyHemphill County

Mountainside Energy Operating, L in Hemphill County

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Canadian, Se (Douglas) field

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