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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

4,961mcf gas, last 12 months−15% vs prior year
Operator
Upp Operating, LLC
County
Sutton County
Field
Sawyer (Canyon)
RRC lease
7C-224881

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Where it sits

This county

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

Production by month

Gas output fell 15% over the last 12 months

Jul 2026 was not reported.

  • Gas (bars)
  • Last 12 months
Gas output fell 15% over the last 12 monthsMonthly gas production for MAYFIELD 40, Aug 2023 to Jul 2026. Gas output fell 15% over the last 12 months. 4,511 mcf in the 12 months through Jul 2026, against 5,286 mcf in the 12 months before.Last 12 months: 4,511 mcfmcf per month0100200300400500Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 15% over the last 12 monthsMonthly gas production for MAYFIELD 40, Aug 2023 to Jul 2026. Gas output fell 15% over the last 12 months. 4,511 mcf in the 12 months through Jul 2026, against 5,286 mcf in the 12 months before.Last 12 monthsmcf per month0100200300400500Jan 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% · 3,939 mcf

  • Lease fuel (1)

    21% · 1,022 mcf

1 well on this lease

Wells on MAYFIELD 40
API numberWell no.Status
42-435-3747921DActive

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
42-435-3747921D1,280

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 20263993170$84.81$3.15
May 20263452770$102.13$2.94
Apr 20264093170$100.32$2.77
Mar 20264203350$91.38$3.04
Feb 20263783130$64.51$3.62
Jan 20264093170$60.04$7.72
Dec 20254153330$57.97$4.26
Nov 20254153240$60.06$3.79
Oct 20254403480$60.89$3.19
Sep 20254303490$63.96$2.97
Aug 20254513630$64.86$2.91
Jul 20254503460$68.39$3.20
Jun 20254443580$68.17$3.02
May 20254543830$62.17$3.12
Apr 20254383670$63.54$3.42
Mar 20254503860$68.24$4.12
Feb 20253963370$71.53$4.19
Jan 20254313720$75.74$4.13
Dec 20244413840$70.12$3.01
Nov 20244323760$69.95$2.12
Oct 20244533840$71.99$2.20
Sep 20244383790$70.24$2.28
Aug 20244593920$76.68$1.99
Jul 20244543820$81.80$2.07
Jun 20244373710$79.77$2.54
May 20244383730$80.02$2.12
Apr 20244033450$85.35$1.60
Mar 20243883400$81.28$1.49
Feb 20243733360$77.25$1.72
Jan 20244413970$74.15$3.18
Dec 20232772530$71.90$2.52
Nov 20233833290$77.69$2.71
Oct 20234093660$85.64$2.98
Sep 20234053590$89.43$2.64
Aug 20234293810$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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