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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 (Strawn, North) field.

1 well

1,871mcf gas, last 12 months−82% vs prior year
Operator
Upp Operating, LLC
County
Sutton County
Field
Sawyer (Strawn, North)
RRC lease
7C-170517

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Where it sits

This county

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

Production by month

Gas output fell 82% over the last 12 months

Jul 2026 was not reported.

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 82% over the last 12 monthsMonthly gas production and oil for MAYFIELD 40, Aug 2023 to Jul 2026. Gas output fell 82% over the last 12 months. 1,739 mcf in the 12 months through Jul 2026, against 9,745 mcf in the 12 months before.Last 12 months: 1,739 mcfmcf per monthbbl per month0050001,00011,50012,0001Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 82% over the last 12 monthsMonthly gas production and oil for MAYFIELD 40, Aug 2023 to Jul 2026. Gas output fell 82% over the last 12 months. 1,739 mcf in the 12 months through Jul 2026, against 9,745 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month0050001,00011,50012,0001Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

90% of the gas went to a processing plant in the last 12 months

  • Processing plant (3)
  • Lease fuel (1)
90% 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. 90% 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
90% 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. 90% 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)

    90% · 1,682 mcf

  • Lease fuel (1)

    10% · 189 mcf

1 well on this lease

Wells on MAYFIELD 40
API numberWell no.Status
42-435-348035Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Shell Trading (Us) CompanyCondensateGathers100Oct 1, 2006
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

  • 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
42-435-348035640

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
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026No report filed–––––$80.46$2.89
Jun 2026001451280$84.81$3.15
May 2026001431280$102.13$2.94
Apr 2026001501310$100.32$2.77
Mar 2026001501370$91.38$3.04
Feb 2026001371250$64.51$3.62
Jan 2026001471340$60.04$7.72
Dec 2025001401280$57.97$4.26
Nov 2025001741590$60.06$3.79
Oct 2025001551410$60.89$3.19
Sep 2025001641420$63.96$2.97
Aug 2025002342100$64.86$2.91
Jul 2025001321190$68.39$3.20
Jun 2025001,0948590$68.17$3.02
May 2025001691380$62.17$3.12
Apr 2025001641480$63.54$3.42
Mar 2025001,7141,4730$68.24$4.12
Feb 2025001,2701,0840$71.53$4.19
Jan 2025001,4741,2940$75.74$4.13
Dec 2024001,1871,0650$70.12$3.01
Nov 2024111,5811,3810$69.95$2.12
Oct 2024006205640$71.99$2.20
Sep 2024001711570$70.24$2.28
Aug 2024001691550$76.68$1.99
Jul 2024001751600$81.80$2.07
Jun 2024001741580$79.77$2.54
May 2024001751570$80.02$2.12
Apr 2024001641440$85.35$1.60
Mar 2024001671500$81.28$1.49
Feb 2024001611490$77.25$1.72
Jan 2024001651530$74.15$3.18
Dec 2023001621440$71.90$2.52
Nov 2023001581440$77.69$2.71
Oct 2023001721580$85.64$2.98
Sep 2023001761600$89.43$2.64
Aug 2023001841610$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 (Strawn, North)CountySutton County

Upp Operating, LLC in Sutton County

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