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MADDUX, HENRY GU

Maddux, Henry Gu is a gas well in Parker County, Texas, operated by Formentera Operations LLC in the Newark, East (Barnett Shale) field.

1 well

737mcf gas, last 12 months+288% vs prior year
Operator
Formentera Operations LLC
County
Parker County
Field
Newark, East (Barnett Shale)
RRC lease
09-249281

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Where it sits

This county

Parker CountyParkerWiseJackHoodPalo PintoTarrantJohnsonDentonParker County
Parker County
Gas in Jul 2026
0 mcf
Reporting since
Jan 2020

Checks stopped on this lease?

  • Operator

    Operator changed: Formentera Operations LLC took over from Javelin Energy Partners Mgmt LLC in Dec 2025.

  • Sales

    No sales reported for the last 6 months of state data (through Jul 2026).

SourceRailroad Commission production, P-5 and P-4 records, data through Jul 2026.

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Production by month

Gas output rose 288% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output rose 288% over the last 12 monthsMonthly gas production and oil for MADDUX, HENRY GU, Aug 2023 to Jul 2026. Gas output rose 288% over the last 12 months. 737 mcf in the 12 months through Jul 2026, against 190 mcf in the 12 months before.Last 12 months: 737 mcfmcf per monthbbl per month0050021,00041,50062,00082,50010Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output rose 288% over the last 12 monthsMonthly gas production and oil for MADDUX, HENRY GU, Aug 2023 to Jul 2026. Gas output rose 288% over the last 12 months. 737 mcf in the 12 months through Jul 2026, against 190 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month0050021,00041,50062,00082,50010Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Sep 2024 the lease's gas goes to a transmission line instead of lease fuel

  • Transmission line (2)
  • Lease fuel (1)
Since Sep 2024 the lease's gas goes to a transmission line instead of lease fuelShare of MADDUX, HENRY GU gas by disposition code each month, Aug 2023 to Jul 2026. Since Sep 2024 the lease's gas goes to a transmission line instead of lease fuel.Share of the lease’s gas by disposition code, per month0%50%100%Sep 2024: fuel to lineOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Sep 2024 the lease's gas goes to a transmission line instead of lease fuelShare of MADDUX, HENRY GU gas by disposition code each month, Aug 2023 to Jul 2026. Since Sep 2024 the lease's gas goes to a transmission line instead of lease fuel.Share of gas by disposition code0%50%100%Sep 24: fuel to lineJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    85% · 8,518 mcf

  • Lease fuel (1)

    15% · 1,456 mcf

Who has run this lease

The operator changed 3 times, most recently in Dec 2025

Operators of this lease over timeFDL Operating, LLC, Jan 2020 to Dec 2021; Venado Operating Company LLC, Jan 2022 to Mar 2022; Javelin Energy Partners Mgmt LLC, Apr 2022 to Nov 2025; Formentera Operations LLC, Dec 2025 to Jul 20262020202120222023202420252026Changed Jan 2022Changed Apr 2022Changed Dec 2025FDL Operating, LLCJan 2020 to Dec 2021Venado Operating Company LLCJan 2022 to Mar 2022Javelin Energy Partners Mgmt…Apr 2022 to Nov 2025Formentera Operations LLCDec 2025 to now
Operators of this lease over timeFDL Operating, LLC, Jan 2020 to Dec 2021; Venado Operating Company LLC, Jan 2022 to Mar 2022; Javelin Energy Partners Mgmt LLC, Apr 2022 to Nov 2025; Formentera Operations LLC, Dec 2025 to Jul 20262020202120222023202420252026Changed Jan 2022Changed Apr 2022Changed Dec 2025FDL Operating, LLCJan 2020 to Dec 2021Venado Operating Company LLCJan 2022 to Mar 2022Javelin Energy Partners Mgmt LLCApr 2022 to Nov 2025Formentera Operations LLCDec 2025 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on MADDUX, HENRY GU
API numberWell no.Status
42-367-347984Shut-in

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Energy Trans Crude Marketing LLCCondensateGathers100Jan 1, 2024–
Javelin Marketing, LLCGas-well gasBuys100Nov 1, 2023–
Enlink Midstream Services, LLCGas-well gasGathers100Nov 1, 2023–
Ptt Premier Trading and Tran LLCCondensateGathers100Nov 1, 2023Jan 1, 2024
Gulfmark Energy, Inc.CondensateGathers100Oct 1, 2018Nov 1, 2023
Enlink North Texas Gathering, LPGas-well gasGathers100Aug 1, 2014Nov 1, 2023
Devon Gas Services, L.p.Gas-well gasBuys100Dec 30, 2008Nov 1, 2023

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

Who buys my oilOil price check

482.52 acres on the newest permit

  • Good to know

    A pooling certificate (P-12) was filed

    Your tract may share its production with neighbors in a pooled unit. The unit acres the operator uses to divide production can differ from the acreage on one permit.

Check your decimal on this lease
Permits for Maddux, Henry Gu
API numberWell no.Acreson the permit
42-367-347984482.52

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

Unit decimal checker

Estimate your royalty

36 months, newest first

Ledger for MADDUX, HENRY GU
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Formentera Operations00000$80.46$2.89
Jun 2026Formentera Operations00000$84.81$3.15
May 2026Formentera Operations00000$102.13$2.94
Apr 2026Formentera Operations00000$100.32$2.77
Mar 2026Formentera Operations00000$91.38$3.04
Feb 2026Formentera Operations00000$64.51$3.62
Jan 2026Formentera Operations005755750$60.04$7.72
Dec 2025Formentera Operations001571570$57.97$4.26
Nov 2025Javelin Energy00550$60.06$3.79
Oct 2025Javelin Energy00000$60.89$3.19
Sep 2025Javelin Energy00000$63.96$2.97
Aug 2025Javelin Energy00000$64.86$2.91
Jul 2025Javelin Energy00000$68.39$3.20
Jun 2025Javelin Energy00000$68.17$3.02
May 2025Javelin Energy00000$62.17$3.12
Apr 2025Javelin Energy00000$63.54$3.42
Mar 2025Javelin Energy00000$68.24$4.12
Feb 2025Javelin Energy00000$71.53$4.19
Jan 2025Javelin Energy00000$75.74$4.13
Dec 2024Javelin Energy00000$70.12$3.01
Nov 2024Javelin Energy001841840$69.95$2.12
Oct 2024Javelin Energy00330$71.99$2.20
Sep 2024Javelin Energy00330$70.24$2.28
Aug 2024Javelin Energy00000$76.68$1.99
Jul 2024Javelin Energy00000$81.80$2.07
Jun 2024Javelin Energy00000$79.77$2.54
May 2024Javelin Energy00000$80.02$2.12
Apr 2024Javelin Energy00000$85.35$1.60
Mar 2024Javelin Energy00000$81.28$1.49
Feb 2024Javelin Energy0023200$77.25$1.72
Jan 2024Javelin Energy006544060$74.15$3.18
Dec 2023Javelin Energy002,1011,8530$71.90$2.52
Nov 2023Javelin Energy10522,0111,7710$77.69$2.71
Oct 2023Javelin Energy002,1651,9170$85.64$2.98
Sep 2023Javelin Energy001,8841,6440$89.43$2.64
Aug 2023Javelin Energy001,7641,5160$81.39$2.58

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Oct 2, 2026.

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Nearby

This lease belongs to

OperatorFormentera Operations LLCFieldNewark, East (Barnett Shale)CountyParker County

Formentera Operations LLC in Parker County

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Newark, East (Barnett Shale) field

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