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MAYFIELD 40

Mayfield 40 is a gas well in Sutton County, Texas, operated by Upp Operating, LLC in the Sawyer (Canyon) field.

1 well

260mcf gas, last 12 months−91% vs prior year
Operator
Upp Operating, LLC
County
Sutton County
Field
Sawyer (Canyon)
RRC lease
7C-132967

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Where it sits

This county

Sutton CountySuttonSchleicherMenardSutton County
Sutton County
Gas in Jun 2026
0 mcf
Reporting since
Jan 2020

Checks stopped on this lease?

  • Sales

    No sales reported for the last 10 months of state data (through Jul 2026).

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

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Production by month

Gas output fell 91% over the last 12 months

Jul 2026 was not reported.

  • Gas (bars)
  • Last 12 months
Gas output fell 91% over the last 12 monthsMonthly gas production for MAYFIELD 40, Aug 2023 to Jul 2026. Gas output fell 91% over the last 12 months. 132 mcf in the 12 months through Jul 2026, against 1,390 mcf in the 12 months before.Last 12 months: 132 mcfmcf per month050100150200Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 91% over the last 12 monthsMonthly gas production for MAYFIELD 40, Aug 2023 to Jul 2026. Gas output fell 91% over the last 12 months. 132 mcf in the 12 months through Jul 2026, against 1,390 mcf in the 12 months before.Last 12 monthsmcf per month050100150200Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

87% of the gas went to a processing plant in the last 12 months

  • Processing plant (3)
  • Lease fuel (1)
87% of the gas went to a processing plant in the last 12 monthsShare of MAYFIELD 40 gas by disposition code each month, Aug 2023 to Jul 2026. 87% 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
87% of the gas went to a processing plant in the last 12 monthsShare of MAYFIELD 40 gas by disposition code each month, Aug 2023 to Jul 2026. 87% 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)

    87% · 1,110 mcf

  • Lease fuel (1)

    13% · 164 mcf

1 well on this lease

Wells on MAYFIELD 40
API numberWell no.Status
42-435-335173Shut-in

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Plains Marketing, L.p.CondensateGathers100Apr 1, 2004
Enervest Operating, L.l.c.Gas-well gasBuys100Sep 1, 2015
Dcp Operating Company, LPGas-well gasGathers100Apr 1, 2017

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

Who buys my oilOil price check

640 acres on the newest permit

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Permits for Mayfield 40
API numberWell no.Acreson the permit
42-435-335173640

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

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36 months, newest first

Ledger for MAYFIELD 40
MonthGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026No report filed–––$80.46$2.89
Jun 2026000$84.81$3.15
May 2026000$102.13$2.94
Apr 2026000$100.32$2.77
Mar 2026000$91.38$3.04
Feb 2026000$64.51$3.62
Jan 2026000$60.04$7.72
Dec 2025000$57.97$4.26
Nov 2025000$60.06$3.79
Oct 2025000$60.89$3.19
Sep 202512100$63.96$2.97
Aug 20251201080$64.86$2.91
Jul 20251281160$68.39$3.20
Jun 2025118930$68.17$3.02
May 2025121990$62.17$3.12
Apr 20251151040$63.54$3.42
Mar 20251271090$68.24$4.12
Feb 2025102870$71.53$4.19
Jan 2025104910$75.74$4.13
Dec 20241111000$70.12$3.01
Nov 2024102890$69.95$2.12
Oct 20241141040$71.99$2.20
Sep 20241181080$70.24$2.28
Aug 20241301190$76.68$1.99
Jul 20241351240$81.80$2.07
Jun 20241361240$79.77$2.54
May 20241511360$80.02$2.12
Apr 20241331170$85.35$1.60
Mar 20241251130$81.28$1.49
Feb 20241161070$77.25$1.72
Jan 20241091010$74.15$3.18
Dec 2023110980$71.90$2.52
Nov 20231101000$77.69$2.71
Oct 20231321210$85.64$2.98
Sep 20231291170$89.43$2.64
Aug 20231431250$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

OperatorUpp Operating, LLCFieldSawyer (Canyon)CountySutton County

Upp Operating, LLC in Sutton County

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Sawyer (Canyon) field

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