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Texas gas well

Producing

MAYFIELD 40

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

1 well

4,884mcf gas, last 12 months−8% vs prior year
Operator
Upp Operating, LLC
County
Sutton County
Field
Sawyer (Canyon)
RRC lease
7C-243758

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Where it sits

This county

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

Production by month

Gas output fell 8% over the last 12 months

Jul 2026 was not reported.

  • Gas (bars)
  • Last 12 months
Gas output fell 8% over the last 12 monthsMonthly gas production for MAYFIELD 40, Aug 2023 to Jul 2026. Gas output fell 8% over the last 12 months. 4,637 mcf in the 12 months through Jul 2026, against 5,057 mcf in the 12 months before.Last 12 months: 4,637 mcfmcf per month0200400600800Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 8% over the last 12 monthsMonthly gas production for MAYFIELD 40, Aug 2023 to Jul 2026. Gas output fell 8% over the last 12 months. 4,637 mcf in the 12 months through Jul 2026, against 5,057 mcf in the 12 months before.Last 12 monthsmcf per month0200400600800Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

80% of the gas went to a processing plant in the last 12 months

  • Processing plant (3)
  • Lease fuel (1)
80% 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. 80% 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
80% 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. 80% 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)

    80% · 3,890 mcf

  • Lease fuel (1)

    20% · 994 mcf

1 well on this lease

Wells on MAYFIELD 40
API numberWell no.Status
42-435-3910122Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Shell Trading (Us) CompanyCondensateGathers100Nov 5, 2008
Enervest Operating, L.l.c.Gas-well gasBuys100Sep 1, 2015
Stonewater Pipeline Company LLCGas-well gasGathers100Nov 5, 2008

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

Who buys my oilOil price check

640 acres on the newest permit

  • Worth asking

    A Rule 37 case is listed

    The RRC permit records list a Rule 37 case. This does not establish your royalty share. Ask for the permit and unit plat for your well.

Check your decimal on this lease
Permits for Mayfield 40
API numberWell no.Acreson the permit
42-435-3910122640

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

Unit decimal checker

Estimate your royalty

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 20265044010$84.81$3.15
May 20265274240$102.13$2.94
Apr 20264863760$100.32$2.77
Mar 20265354270$91.38$3.04
Feb 20265204310$64.51$3.62
Jan 20263292550$60.04$7.72
Dec 20253192560$57.97$4.26
Nov 20253222510$60.06$3.79
Oct 20253462740$60.89$3.19
Sep 20253402760$63.96$2.97
Aug 20254093290$64.86$2.91
Jul 20252471900$68.39$3.20
Jun 20251511220$68.17$3.02
May 20253362840$62.17$3.12
Apr 20254713950$63.54$3.42
Mar 20254884180$68.24$4.12
Feb 20254103490$71.53$4.19
Jan 20254583960$75.74$4.13
Dec 20244483900$70.12$3.01
Nov 20244694080$69.95$2.12
Oct 20245194400$71.99$2.20
Sep 20245024340$70.24$2.28
Aug 20245584770$76.68$1.99
Jul 20245754840$81.80$2.07
Jun 20244473800$79.77$2.54
May 20242241910$80.02$2.12
Apr 20242271940$85.35$1.60
Mar 20242652320$81.28$1.49
Feb 20242722450$77.25$1.72
Jan 20242332100$74.15$3.18
Dec 20232602370$71.90$2.52
Nov 20233793250$77.69$2.71
Oct 20235074540$85.64$2.98
Sep 20235114530$89.43$2.64
Aug 20235524900$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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