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Royalty Clerk

Texas gas well

Producing

MARTINEZ

Martinez is a gas well in Starr County, Texas, operated by Marwell Petroleum LTD Partnrship in the Harry J. Mosser (5500) field.

1 well

17,400mcf gas, last 12 months+29% vs prior year
Operator
Marwell Petroleum LTD Partnrship
County
Starr County
Field
Harry J. Mosser (5500)
RRC lease
04-226605

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Where it sits

This county

Starr CountyStarrBrooksJim HoggZapataHidalgoStarr County
Starr County
Oil, last 12 months
31 bbl
Gas in Jul 2026
1,298 mcf

Production by month

Gas output rose 29% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output rose 29% over the last 12 monthsMonthly gas production and oil for MARTINEZ, Aug 2023 to Jul 2026. Gas output rose 29% over the last 12 months. 17,400 mcf in the 12 months through Jul 2026, against 13,533 mcf in the 12 months before.Last 12 months: 17,400 mcfmcf per monthbbl per month00500501,0001001,5001502,0002002,500250Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output rose 29% over the last 12 monthsMonthly gas production and oil for MARTINEZ, Aug 2023 to Jul 2026. Gas output rose 29% over the last 12 months. 17,400 mcf in the 12 months through Jul 2026, against 13,533 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month00500501,0001001,5001502,0002002,500250Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

99% of the gas went to a transmission line in the last 12 months

  • Transmission line (2)
  • Lease fuel (1)
99% of the gas went to a transmission line in the last 12 monthsShare of MARTINEZ gas by disposition code each month, Aug 2023 to Jul 2026. 99% of the gas went to a transmission line in the last 12 months.Share of the lease’s gas by disposition code, per month0%50%100%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
99% of the gas went to a transmission line in the last 12 monthsShare of MARTINEZ gas by disposition code each month, Aug 2023 to Jul 2026. 99% of the gas went to a transmission line 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.

  • Transmission line (2)

    99% · 17,277 mcf

  • Lease fuel (1)

    0.7% · 123 mcf

1 well on this lease

Wells on MARTINEZ
API numberWell no.Status
42-427-339542Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Gulfmark Energy, Inc.CondensateGathers100Mar 13, 2007
Kinder Morgan Tejas Pipeline LLCGas-well gasBuys100Sep 1, 2007
Kinder Morgan Tejas Pipeline LLCGas-well gasGathers100Sep 1, 2007

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

Who buys my oilOil price check

150 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 Martinez
API numberWell no.Acreson the permit
42-427-339542150

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

Unit decimal checker

Estimate your royalty

36 months, newest first

Ledger for MARTINEZ
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026001,2981,2910$80.46$2.89
Jun 2026001,4821,4730$84.81$3.15
May 2026008338280$102.13$2.94
Apr 2026001,7631,7500$100.32$2.77
Mar 2026501,0861,0740$91.38$3.04
Feb 2026001,5351,5250$64.51$3.62
Jan 2026301,1171,1110$60.04$7.72
Dec 2025501,8651,8520$57.97$4.26
Nov 2025007337260$60.06$3.79
Oct 2025702,0242,0090$60.89$3.19
Sep 2025501,9491,9350$63.96$2.97
Aug 2025601,7151,7030$64.86$2.91
Jul 2025301,5301,5200$68.39$3.20
Jun 2025005365310$68.17$3.02
May 2025001,2691,2620$62.17$3.12
Apr 2025201,6081,5980$63.54$3.42
Mar 2025006806740$68.24$4.12
Feb 2025005034990$71.53$4.19
Jan 2025009919860$75.74$4.13
Dec 2024201,1551,1490$70.12$3.01
Nov 2024008578530$69.95$2.12
Oct 2024001,0951,0900$71.99$2.20
Sep 2024701,7891,7770$70.24$2.28
Aug 202417001,5201,5140$76.68$1.99
Jul 2024008568510$81.80$2.07
Jun 2024001,4101,4000$79.77$2.54
May 2024001,0631,0580$80.02$2.12
Apr 2024001,6011,5910$85.35$1.60
Mar 2024001,5631,5530$81.28$1.49
Feb 2024008608560$77.25$1.72
Jan 2024001,6881,6780$74.15$3.18
Dec 2023009349290$71.90$2.52
Nov 2023001,8111,7990$77.69$2.71
Oct 2023001,7321,7210$85.64$2.98
Sep 2023001,6901,6800$89.43$2.64
Aug 2023001,6491,6390$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

OperatorMarwell Petroleum LTD PartnrshipFieldHarry J. Mosser (5500)CountyStarr County

Marwell Petroleum LTD Partnrship in Starr County

No other producing leases from this operator in this county are in our data yet.

Harry J. Mosser (5500) field

No other producing leases in this field are in our data yet.

Leases within 10 km

Drilling permits within 10 km