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STONE "40"

Stone "40" is an oil lease in Martin County, Texas, operated by Pioneer Natural Res. USA, Inc. in the Spraberry (Trend Area) field.

6 wells

128bbl oil, last 12 months−91% vs prior year
Operator
Pioneer Natural Res. USA, Inc.
County
Martin County
Field
Spraberry (Trend Area)
RRC lease
08-39817

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Where it sits

This county

Martin CountyMartinGainesAndrewsHowardDawsonBordenMartin County
Martin County
Gas, last 12 months
124 mcf
Oil in Jul 2026
0 bbl

Production by month

Oil output fell 91% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 91% over the last 12 monthsMonthly oil production and gas for STONE "40", Aug 2023 to Jul 2026. Oil output fell 91% over the last 12 months. 128 bbl in the 12 months through Jul 2026, against 1,385 bbl in the 12 months before.Last 12 months: 128 bblbbl per monthmcf per month0050100100200150300200400250500Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 91% over the last 12 monthsMonthly oil production and gas for STONE "40", Aug 2023 to Jul 2026. Oil output fell 91% over the last 12 months. 128 bbl in the 12 months through Jul 2026, against 1,385 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month0050100100200150300200400250500Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Jun 2025 the lease's gas goes to lease fuel instead of a processing plant

  • Processing plant (3)
  • Lease fuel (1)
Since Jun 2025 the lease's gas goes to lease fuel instead of a processing plantShare of STONE "40" gas by disposition code each month, Aug 2023 to Jul 2026. Since Jun 2025 the lease's gas goes to lease fuel instead of a processing plant.Share of the lease’s gas by disposition code, per month0%50%100%Jun 2025: plant to fuelOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Jun 2025 the lease's gas goes to lease fuel instead of a processing plantShare of STONE "40" gas by disposition code each month, Aug 2023 to Jul 2026. Since Jun 2025 the lease's gas goes to lease fuel instead of a processing plant.Share of gas by disposition code0%50%100%Jun 25: plant to fuelJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    57% · 1,960 mcf

  • Lease fuel (1)

    43% · 1,460 mcf

6 wells on this lease

Wells on STONE "40"
API numberWell no.Status
42-173-336792Shut-in
42-317-355001Shut-in
42-317-371193Shut-in
42-317-380224Shut-in
42-317-386727Shut-in
42-317-389515Shut-in

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Plains Marketing, L.p.OilGathers50Jun 1, 2020–
Energy Trans Crude Marketing LLCOilGathers25Jul 1, 2021–
Energy Transfer Marketing & TermOilGathers25Dec 1, 2022–
Targa Pl Mid-Cont Westtex LLCCasinghead gasBuys100Nov 1, 2015–
Targa Pl Mid-Cont Westtex LLCCasinghead gasGathers100Oct 1, 2015–
Sunoco Ptnrs. Mktg.&terminals LPOilGathers25Jul 1, 2021Dec 1, 2022
Sunoco Ptnrs. Mktg.&terminals LPOilGathers50Jun 1, 2020Jul 1, 2021
Gulfmark Energy, Inc.OilGathers20Mar 1, 2017Jun 1, 2020
Plains Marketing, L.p.OilGathers40Mar 1, 2017Jun 1, 2020
Sunoco Ptnrs. Mktg.&terminals LPOilGathers40Mar 1, 2017Jun 1, 2020

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

Who buys my oilOil price check

640.40 acres on the newest permit

Permits for Stone "40"
API numberWell no.Acreson the permit
42-317-389515640.40
42-317-386727640.35
42-317-380224640.40
42-317-371193640.35
42-173-336792640.35
42-317-355001640

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

Unit decimal checker

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36 months, newest first

Ledger for STONE "40"
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 202600000$80.46$2.89
Jun 202600000$84.81$3.15
May 2026052000$102.13$2.94
Apr 202600000$100.32$2.77
Mar 202600000$91.38$3.04
Feb 202600000$64.51$3.62
Jan 202600000$60.04$7.72
Dec 202500000$57.97$4.26
Nov 202500000$60.06$3.79
Oct 202500000$60.89$3.19
Sep 2025390000$63.96$2.97
Aug 202512511212400$64.86$2.91
Jul 2025130000$68.39$3.20
Jun 2025700180600$68.17$3.02
May 202573582841600$62.17$3.12
Apr 20256776133130$63.54$3.42
Mar 20251832142241000$68.24$4.12
Feb 2025174752351230$71.53$4.19
Jan 20251171203882640$75.74$4.13
Dec 2024871653992750$70.12$3.01
Nov 20241371403432230$69.95$2.12
Oct 20241261813692450$71.99$2.20
Sep 20241961063642440$70.24$2.28
Aug 20241421273772530$76.68$1.99
Jul 20241091193922680$81.80$2.07
Jun 2024120963652450$79.77$2.54
May 202473873832590$80.02$2.12
Apr 2024781062761560$85.35$1.60
Mar 20241331703161920$81.28$1.49
Feb 20241311893772610$77.25$1.72
Jan 2024141382281040$74.15$3.18
Dec 20231352192981740$71.90$2.52
Nov 20232401522961760$77.69$2.71
Oct 2023103128217930$85.64$2.98
Sep 20231511743252050$89.43$2.64
Aug 20231381182981740$81.39$2.58

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

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This lease belongs to

OperatorPioneer Natural Res. USA, Inc.FieldSpraberry (Trend Area)CountyMartin County

Pioneer Natural Res. USA, Inc. in Martin County

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Spraberry (Trend Area) field

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