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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

2,905mcf gas, last 12 months−18% vs prior year
Operator
Upp Operating, LLC
County
Sutton County
Field
Sawyer (Canyon)
RRC lease
7C-213151

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Where it sits

This county

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

Production by month

Gas output fell 18% over the last 12 months

Jul 2026 was not reported.

  • Gas (bars)
  • Last 12 months
Gas output fell 18% over the last 12 monthsMonthly gas production for MAYFIELD 40, Aug 2023 to Jul 2026. Gas output fell 18% over the last 12 months. 2,650 mcf in the 12 months through Jul 2026, against 3,241 mcf in the 12 months before.Last 12 months: 2,650 mcfmcf per month0100200300400Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 18% over the last 12 monthsMonthly gas production for MAYFIELD 40, Aug 2023 to Jul 2026. Gas output fell 18% over the last 12 months. 2,650 mcf in the 12 months through Jul 2026, against 3,241 mcf in the 12 months before.Last 12 monthsmcf per month0100200300400Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

79% of the gas went to a processing plant in the last 12 months

  • Processing plant (3)
  • Lease fuel (1)
79% 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. 79% 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
79% 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. 79% 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)

    79% · 2,304 mcf

  • Lease fuel (1)

    21% · 601 mcf

1 well on this lease

Wells on MAYFIELD 40
API numberWell no.Status
42-435-372099Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Enterprise Hydrocarbons, L.p.Gas-well gasBuys100May 18, 2005
Stonewater Pipeline Company LLCGas-well gasGathers100Feb 1, 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
42-435-372099640

SourceRailroad Commission drilling permits, Sep 26, 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 20262672120$84.81$3.15
May 20262812260$102.13$2.94
Apr 20263002320$100.32$2.77
Mar 202629230$91.38$3.04
Feb 20262321920$64.51$3.62
Jan 20262551970$60.04$7.72
Dec 20252552050$57.97$4.26
Nov 20252501950$60.06$3.79
Oct 20252672110$60.89$3.19
Sep 20252542060$63.96$2.97
Aug 20252602090$64.86$2.91
Jul 20252551960$68.39$3.20
Jun 20252291850$68.17$3.02
May 202584710$62.17$3.12
Apr 20252602180$63.54$3.42
Mar 20252662280$68.24$4.12
Feb 20252432070$71.53$4.19
Jan 20252632270$75.74$4.13
Dec 20243513060$70.12$3.01
Nov 20243112710$69.95$2.12
Oct 20243332830$71.99$2.20
Sep 20243152730$70.24$2.28
Aug 20243312830$76.68$1.99
Jul 20243372840$81.80$2.07
Jun 20243392880$79.77$2.54
May 20242492120$80.02$2.12
Apr 20243132680$85.35$1.60
Mar 20243272870$81.28$1.49
Feb 20243172850$77.25$1.72
Jan 20243423080$74.15$3.18
Dec 20233603290$71.90$2.52
Nov 20233392910$77.69$2.71
Oct 20233292940$85.64$2.98
Sep 20233272900$89.43$2.64
Aug 20233372990$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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