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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

32,816mcf gas, last 12 months−18% vs prior year
Operator
Mountainside Energy Operating, L
County
Hemphill County
Field
Canadian, Se (Douglas)
RRC lease
10-099510

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Where it sits

This county

Hemphill CountyHemphillLipscombRobertsOchiltreeHemphill County
Hemphill County
Oil, last 12 months
40 bbl
Gas in Jun 2026
2,878 mcf

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 18% over the last 12 months

Jul 2026 was not reported.

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 18% over the last 12 monthsMonthly gas production and oil for ISAACS-SIMPSON, Aug 2023 to Jul 2026. Gas output fell 18% over the last 12 months. 29,784 mcf in the 12 months through Jul 2026, against 36,251 mcf in the 12 months before.Last 12 months: 29,784 mcfmcf per monthbbl per month001,000102,000203,000304,000405,00050Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 18% over the last 12 monthsMonthly gas production and oil for ISAACS-SIMPSON, Aug 2023 to Jul 2026. Gas output fell 18% over the last 12 months. 29,784 mcf in the 12 months through Jul 2026, against 36,251 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month001,000102,000203,000304,000405,00050Jan 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
42-211-314213214Shut-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

640 acres on the newest permit

Check your decimal on this lease
Permits for Isaacs-Simpson
API numberWell no.Acreson the permit
42-211-314213214640

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

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36 months, newest first

Ledger for ISAACS-SIMPSON
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026No report–––––$80.46$2.89
Jun 2026Mountainside Energy002,8782,8780$84.81$3.15
May 2026Mountainside Energy003,0223,0220$102.13$2.94
Apr 2026Mountainside Energy701,8221,8220$100.32$2.77
Mar 2026Mountainside Energy002,1532,1530$91.38$3.04
Feb 2026Mountainside Energy0782,2582,2580$64.51$3.62
Jan 2026Highmark Energy002,3812,3810$60.04$7.72
Dec 2025Highmark Energy003,1183,1180$57.97$4.26
Nov 2025Highmark Energy003,0713,0710$60.06$3.79
Oct 2025Highmark Energy002,9922,9920$60.89$3.19
Sep 2025Highmark Energy002,9232,9230$63.96$2.97
Aug 2025Highmark Energy1603,1663,1660$64.86$2.91
Jul 2025Highmark Energy1703,0323,0320$68.39$3.20
Jun 2025Highmark Energy003,0713,0710$68.17$3.02
May 2025Highmark Energy1303,1693,1690$62.17$3.12
Apr 2025Highmark Energy1203,0273,0270$63.54$3.42
Mar 2025Highmark Energy2503,0173,0170$68.24$4.12
Feb 2025Highmark Energy5002,4092,4090$71.53$4.19
Jan 2025Highmark Energy002,5122,5120$75.74$4.13
Dec 2024Highmark Energy321973,1153,1150$70.12$3.01
Nov 2024Highmark Energy003,2003,2000$69.95$2.12
Oct 2024Highmark Energy003,3693,3690$71.99$2.20
Sep 2024Highmark Energy003,1763,1760$70.24$2.28
Aug 2024Highmark Energy3003,1543,1540$76.68$1.99
Jul 2024Highmark Energy002,8092,8090$81.80$2.07
Jun 2024Highmark Energy002,4652,4650$79.77$2.54
May 2024Highmark Energy002,5892,5890$80.02$2.12
Apr 2024Highmark Energy302,3752,3750$85.35$1.60
Mar 2024Highmark Energy4002,2142,2140$81.28$1.49
Feb 2024Highmark Energy002,0312,0310$77.25$1.72
Jan 2024Highmark Energy1002,1552,1550$74.15$3.18
Dec 2023Highmark Energy2402,6902,6900$71.90$2.52
Nov 2023Highmark Energy302,3052,3050$77.69$2.71
Oct 2023Highmark Energy1202,7212,7210$85.64$2.98
Sep 2023Highmark Energy002,5362,5360$89.43$2.64
Aug 2023Highmark Energy1002,7462,7460$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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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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