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Texas oil lease

Producing

WELCH-COX E39B

Welch-Cox E39b is an oil lease in Martin County, Texas, operated by Pioneer Natural Res. USA, Inc. in the Spraberry (Trend Area) field.

1 well

68,058bbl oil, last 12 months−48% vs prior year
RRC lease
08-59855

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Where it sits

This county

Martin CountyMartinGainesAndrewsHowardDawsonBordenMartin County
Martin County
Gas, last 12 months
240,422 mcf
Oil in Jul 2026
5,303 bbl

Production by month

Oil output fell 48% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 48% over the last 12 monthsMonthly oil production and gas for WELCH-COX E39B, Oct 2023 to Jul 2026. Oil output fell 48% over the last 12 months. 68,058 bbl in the 12 months through Jul 2026, against 131,562 bbl in the 12 months before.Last 12 months: 68,058 bblbbl per monthmcf per month0010k10k20k20k30k30k40k40kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 48% over the last 12 monthsMonthly oil production and gas for WELCH-COX E39B, Oct 2023 to Jul 2026. Oil output fell 48% over the last 12 months. 68,058 bbl in the 12 months through Jul 2026, against 131,562 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month0010k10k20k20k30k30k40k40kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Over 99% of the gas went to a processing plant in the last 12 months

Flaring peaked at 10.5% of the gas in Jan 2024.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
Over 99% of the gas went to a processing plant in the last 12 monthsShare of WELCH-COX E39B gas by disposition code each month, Oct 2023 to Jul 2026. Over 99% of the gas went to a processing plant in the last 12 months. Flaring peaked at 10.5% of the gas in Jan 2024.Share of the lease’s gas by disposition code, per month0%50%100%Flared 10.5%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Over 99% of the gas went to a processing plant in the last 12 monthsShare of WELCH-COX E39B gas by disposition code each month, Oct 2023 to Jul 2026. Over 99% of the gas went to a processing plant in the last 12 months. Flaring peaked at 10.5% of the gas in Jan 2024.Share of gas by disposition code0%50%100%Flared 10.5%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    100% · 239,239 mcf

  • Lease fuel (1)

    0.3% · 798 mcf

  • Flared (4)

    0.2% · 385 mcf

0.2% of the gas flared in the last 12 months. 4 months above 3%.

1 well on this lease

Wells on WELCH-COX E39B
API numberWell no.Status
42-317-43569302HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Energy Trans Crude Marketing LLCOilGathers100May 9, 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 9, 2023Dec 1, 2024
Wtg North Permian Midstream LLCCasinghead gasBuys100May 9, 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 E39b
API numberWell no.Acreson the permit
42-317-43569302H826.40

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

Estimate your royalty

34 months, newest first

Ledger for WELCH-COX E39B
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20265,3035,31125,44725,224127$80.46$2.89
Jun 20267,8997,87931,16631,0674$84.81$3.15
May 20268,2408,23026,42826,28357$102.13$2.94
Apr 20265,3975,37616,67616,6220$100.32$2.77
Mar 20261,5461,5704,8914,8711$91.38$3.04
Feb 20264,7004,69615,60115,5469$64.51$3.62
Jan 20264,9794,96719,10419,03010$60.04$7.72
Dec 20254,0524,05214,15314,1080$57.97$4.26
Nov 20253,6873,70016,00215,93611$60.06$3.79
Oct 20256,3216,32721,44621,198166$60.89$3.19
Sep 20258,2498,24524,56824,4970$63.96$2.97
Aug 20257,6857,71424,94024,8570$64.86$2.91
Jul 20258,8998,94924,37822,9761,277$68.39$3.20
Jun 20257,4807,41824,22724,05148$68.17$3.02
May 20259,6929,69627,64927,49017$62.17$3.12
Apr 20259,3749,38825,45125,30871$63.54$3.42
Mar 202510,82710,81926,62626,5524$68.24$4.12
Feb 202510,0059,98623,09221,61926$71.53$4.19
Jan 20258,4578,48223,24420,45418$75.74$4.13
Dec 202412,04712,05431,25328,11810$70.12$3.01
Nov 202412,04312,03828,15524,894255$69.95$2.12
Oct 202413,95913,94930,86628,44521$71.99$2.20
Sep 202413,78013,79227,47725,4441,975$70.24$2.28
Aug 202414,99914,97727,64927,250335$76.68$1.99
Jul 202415,88215,88225,92025,8505$81.80$2.07
Jun 202416,32116,33927,09025,6181,404$79.77$2.54
May 202418,70318,69028,81428,71728$80.02$2.12
Apr 202419,82719,83627,98227,89822$85.35$1.60
Mar 202424,09524,14532,11132,0441$81.28$1.49
Feb 202424,87824,89026,67526,55751$77.25$1.72
Jan 202425,96225,94621,72519,3922,276$74.15$3.18
Dec 202325,44025,39520,78020,71222$71.90$2.52
Nov 202316,84116,79214,05014,0160$77.69$2.71
Oct 20232,7512,7351,6321,6207$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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