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Texas oil lease

Producing

WELCH-COX E39S

Welch-Cox E39s is an oil lease in Martin County, Texas, operated by Pioneer Natural Res. USA, Inc. in the Spraberry (Trend Area) field.

1 well

49,817bbl oil, last 12 months−34% vs prior year
RRC lease
08-59913

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Where it sits

This county

Martin CountyMartinGainesAndrewsHowardDawsonBordenMartin County
Martin County
Gas, last 12 months
290,794 mcf
Oil in Jul 2026
3,488 bbl

Production by month

Oil output fell 34% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 34% over the last 12 monthsMonthly oil production and gas for WELCH-COX E39S, Oct 2023 to Jul 2026. Oil output fell 34% over the last 12 months. 49,817 bbl in the 12 months through Jul 2026, against 75,461 bbl in the 12 months before.Last 12 months: 49,817 bblbbl per monthmcf per month0010k20k20k40k30k60k40k80kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 34% over the last 12 monthsMonthly oil production and gas for WELCH-COX E39S, Oct 2023 to Jul 2026. Oil output fell 34% over the last 12 months. 49,817 bbl in the 12 months through Jul 2026, against 75,461 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month0010k20k20k40k30k60k40k80kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

94% of the gas went to a processing plant in the last 12 months

Flaring peaked at 3.3% of the gas in Jan 2024.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
94% of the gas went to a processing plant in the last 12 monthsShare of WELCH-COX E39S gas by disposition code each month, Oct 2023 to Jul 2026. 94% of the gas went to a processing plant in the last 12 months. Flaring peaked at 3.3% of the gas in Jan 2024.Share of the lease’s gas by disposition code, per month0%50%100%Flared 3.3%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
94% of the gas went to a processing plant in the last 12 monthsShare of WELCH-COX E39S gas by disposition code each month, Oct 2023 to Jul 2026. 94% of the gas went to a processing plant in the last 12 months. Flaring peaked at 3.3% of the gas in Jan 2024.Share of gas by disposition code0%50%100%Flared 3.3%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    94% · 271,973 mcf

  • Lease fuel (1)

    6.3% · 18,294 mcf

  • Flared (4)

    0.2% · 527 mcf

0.2% of the gas flared in the last 12 months. One month above 3%.

1 well on this lease

Wells on WELCH-COX E39S
API numberWell no.Status
42-317-43567319HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Energy Trans Crude Marketing LLCOilGathers100May 28, 2023–
Et Gathering & Processing LLCCasinghead gasBuys100Mar 1, 2026–
Energy Transfer CompanyCasinghead gasGathers100Dec 1, 2024–
Etc North Permian Midstream LLCCasinghead gasBuys100Dec 1, 2024Mar 1, 2026
Wtg North Permian Midstream LLCCasinghead gasGathers100May 28, 2023Dec 1, 2024
Wtg North Permian Midstream LLCCasinghead gasBuys100May 28, 2023Dec 1, 2024

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

826.40 acres on the newest permit

An allocation well is on this lease

Permits for Welch-Cox E39s
API numberWell no.Acreson the permit
42-317-43567319H826.40

SourceRailroad Commission drilling permits, Sep 26, 2026 (source 1, source 2).

Estimate your royalty

34 months, newest first

Ledger for WELCH-COX E39S
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20263,4883,49624,08022,56477$80.46$2.89
Jun 20263,3243,33422,57121,05212$84.81$3.15
May 20263,5753,57721,94320,368187$102.13$2.94
Apr 20263,6353,63119,69318,46532$100.32$2.77
Mar 20263,4073,40619,73918,3780$91.38$3.04
Feb 20263,5173,51519,60218,1465$64.51$3.62
Jan 20263,8223,82621,20919,51748$60.04$7.72
Dec 20254,4314,43523,42921,86320$57.97$4.26
Nov 20254,8644,86925,08823,48391$60.06$3.79
Oct 20255,0935,06230,49028,66755$60.89$3.19
Sep 20255,1175,13432,01130,2180$63.96$2.97
Aug 20255,5445,55530,93929,2520$64.86$2.91
Jul 20255,3715,36923,32721,546497$68.39$3.20
Jun 20254,4964,49420,60019,40771$68.17$3.02
May 20255,4325,44623,38622,04236$62.17$3.12
Apr 20255,6565,64921,14520,09016$63.54$3.42
Mar 20255,2255,20323,71222,253301$68.24$4.12
Feb 20255,7885,79827,37826,14211$71.53$4.19
Jan 20258,1228,11442,49840,5696$75.74$4.13
Dec 20247,5157,54233,39931,263579$70.12$3.01
Nov 20246,1306,10322,42321,3255$69.95$2.12
Oct 20246,3926,3979,6729,20056$71.99$2.20
Sep 20246,0806,08727,97626,434652$70.24$2.28
Aug 20249,2549,25140,14138,89916$76.68$1.99
Jul 20249,3599,34833,40832,3670$81.80$2.07
Jun 20247,1727,17911,67811,3012$79.77$2.54
May 20247,7397,75316,09315,5882$80.02$2.12
Apr 202412,36312,35639,98438,70024$85.35$1.60
Mar 202417,08517,10653,87952,3023$81.28$1.49
Feb 202418,54718,54949,09247,421160$77.25$1.72
Jan 202414,75214,73632,73330,6111,082$74.15$3.18
Dec 202321,12421,18828,57727,580123$71.90$2.52
Nov 202326,18126,10327,63926,7990$77.69$2.71
Oct 20239,3739,3448,4188,4013$85.64$2.98

Flared above 3%

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Sep 28, 2026.

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Nearby

Pioneer Natural Res. USA, Inc. in Martin County

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Spraberry (Trend Area) field

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