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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

511mcf gas, last 12 months−61% vs prior year
Operator
Upp Operating, LLC
County
Sutton County
Field
Sawyer (Canyon)
RRC lease
7C-223584

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Where it sits

This county

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

Production by month

Gas output fell 61% over the last 12 months

Jul 2026 was not reported.

  • Gas (bars)
  • Last 12 months
Gas output fell 61% over the last 12 monthsMonthly gas production for MAYFIELD 40, Aug 2023 to Jul 2026. Gas output fell 61% over the last 12 months. 408 mcf in the 12 months through Jul 2026, against 1,047 mcf in the 12 months before.Last 12 months: 408 mcfmcf per month0255075100125Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 61% over the last 12 monthsMonthly gas production for MAYFIELD 40, Aug 2023 to Jul 2026. Gas output fell 61% over the last 12 months. 408 mcf in the 12 months through Jul 2026, against 1,047 mcf in the 12 months before.Last 12 monthsmcf per month0255075100125Jan 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% · 485 mcf

  • Lease fuel (1)

    20% · 125 mcf

1 well on this lease

Wells on MAYFIELD 40
API numberWell no.Status
42-435-3748020Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Enervest Operating, L.l.c.Gas-well gasBuys100Sep 1, 2015
Stonewater Pipeline Company LLCGas-well gasGathers100Feb 1, 2008

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

Who buys my oilOil price check

1,280 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
42-435-37480201,280

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 202635280$84.81$3.15
May 202637300$102.13$2.94
Apr 202624190$100.32$2.77
Mar 202640320$91.38$3.04
Feb 202636300$64.51$3.62
Jan 202644340$60.04$7.72
Dec 202546370$57.97$4.26
Nov 202549380$60.06$3.79
Oct 202549390$60.89$3.19
Sep 2025000$63.96$2.97
Aug 202548390$64.86$2.91
Jul 2025103790$68.39$3.20
Jun 202599800$68.17$3.02
May 202598830$62.17$3.12
Apr 202593780$63.54$3.42
Mar 202590770$68.24$4.12
Feb 202573620$71.53$4.19
Jan 202573630$75.74$4.13
Dec 202477670$70.12$3.01
Nov 202477670$69.95$2.12
Oct 202486730$71.99$2.20
Sep 202486740$70.24$2.28
Aug 202492790$76.68$1.99
Jul 202491770$81.80$2.07
Jun 202487740$79.77$2.54
May 202483710$80.02$2.12
Apr 202475640$85.35$1.60
Mar 202472630$81.28$1.49
Feb 202467600$77.25$1.72
Jan 202460540$74.15$3.18
Dec 202360550$71.90$2.52
Nov 202375640$77.69$2.71
Oct 202388790$85.64$2.98
Sep 202391810$89.43$2.64
Aug 202397860$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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