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Texas gas well

Producing

CITY OF SHAMROCK UNIT

City of Shamrock Unit is a gas well in Wheeler County, Texas, operated by Mountainside Energy Operating, L in the Wheeler-Pan (Hunton) field.

1 well

63,584mcf gas, last 12 months−12% vs prior year
Operator
Mountainside Energy Operating, L
County
Wheeler County
Field
Wheeler-Pan (Hunton)
RRC lease
10-061598

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Where it sits

This county

Wheeler CountyWheelerGrayHemphillRobertsWheeler County
Wheeler County
Oil, last 12 months
134 bbl
Gas in Jun 2026
4,710 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 12% over the last 12 months

Jul 2026 was not reported.

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 12% over the last 12 monthsMonthly gas production and oil for CITY OF SHAMROCK UNIT, Aug 2023 to Jul 2026. Gas output fell 12% over the last 12 months. 57,572 mcf in the 12 months through Jul 2026, against 65,688 mcf in the 12 months before.Last 12 months: 57,572 mcfmcf per monthbbl per month002,000254,000506,000758,000100Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 12% over the last 12 monthsMonthly gas production and oil for CITY OF SHAMROCK UNIT, Aug 2023 to Jul 2026. Gas output fell 12% over the last 12 months. 57,572 mcf in the 12 months through Jul 2026, against 65,688 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month002,000254,000506,000758,000100Jan 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 CITY OF SHAMROCK UNIT 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 CITY OF SHAMROCK UNIT 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 CITY OF SHAMROCK UNIT
API numberWell no.Status
42-483-301031Shut-in

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Eastex Crude Company, LLCCondensateGathers100Feb 4, 2026–
Southwest Energy, L.p.Gas-well gasBuys100Aug 1, 2021–
Energy Transfer CompanyGas-well gasGathers100Aug 1, 2021–
Eastex Crude CompanyCondensateGathers100Apr 1, 2002Feb 4, 2026
Oneok Field Services Co, L.l.c.Gas-well gasGathers100May 1, 2012Aug 1, 2021
Chevron U. S. A. Inc.Gas-well gasBuys100Jun 1, 2002Aug 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 City of Shamrock Unit
API numberWell no.Acreson the permit
42-483-301031–

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

Unit decimal checker

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36 months, newest first

Ledger for CITY OF SHAMROCK UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026No report–––––$80.46$2.89
Jun 2026Mountainside Energy004,7104,7100$84.81$3.15
May 2026Mountainside Energy004,9044,9040$102.13$2.94
Apr 2026Mountainside Energy004,7674,7670$100.32$2.77
Mar 2026Mountainside Energy005,0945,0940$91.38$3.04
Feb 2026Mountainside Energy971794,6874,6870$64.51$3.62
Jan 2026Highmark Energy004,7034,7030$60.04$7.72
Dec 2025Highmark Energy005,7365,7360$57.97$4.26
Nov 2025Highmark Energy005,5375,5370$60.06$3.79
Oct 2025Highmark Energy005,7235,7230$60.89$3.19
Sep 2025Highmark Energy005,6145,6140$63.96$2.97
Aug 2025Highmark Energy3706,0976,0970$64.86$2.91
Jul 2025Highmark Energy006,0126,0120$68.39$3.20
Jun 2025Highmark Energy4005,9325,9320$68.17$3.02
May 2025Highmark Energy306,2126,2120$62.17$3.12
Apr 2025Highmark Energy2305,8795,8790$63.54$3.42
Mar 2025Highmark Energy821836,1166,1160$68.24$4.12
Feb 2025Highmark Energy004,8134,8130$71.53$4.19
Jan 2025Highmark Energy006,0186,0180$75.74$4.13
Dec 2024Highmark Energy1104,8154,8150$70.12$3.01
Nov 2024Highmark Energy004,7414,7410$69.95$2.12
Oct 2024Highmark Energy004,9654,9650$71.99$2.20
Sep 2024Highmark Energy005,0175,0170$70.24$2.28
Aug 2024Highmark Energy005,1685,1680$76.68$1.99
Jul 2024Highmark Energy005,4285,4280$81.80$2.07
Jun 2024Highmark Energy405,6485,6480$79.77$2.54
May 2024Highmark Energy006,1896,1890$80.02$2.12
Apr 2024Highmark Energy1806,3336,3330$85.35$1.60
Mar 2024Highmark Energy806,4516,4510$81.28$1.49
Feb 2024Highmark Energy2205,6285,6280$77.25$1.72
Jan 2024Highmark Energy005,8145,8140$74.15$3.18
Dec 2023Highmark Energy5205,7035,7030$71.90$2.52
Nov 2023Highmark Energy005,7115,7110$77.69$2.71
Oct 2023Highmark Energy005,4935,4930$85.64$2.98
Sep 2023Highmark Energy005,8415,8410$89.43$2.64
Aug 2023Highmark Energy005,9635,9630$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, LFieldWheeler-Pan (Hunton)CountyWheeler County

Mountainside Energy Operating, L in Wheeler County

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