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Producing

SHACKELFORD 40-12AB

Shackelford 40-12AB is an oil lease in Midland County, Texas, operated by Pioneer Natural Res. USA, Inc. in the Spraberry (Trend Area) field.

1 well

129,139bbl oil, last 12 months−57% vs prior year
Operator
Pioneer Natural Res. USA, Inc.
County
Midland County
Field
Spraberry (Trend Area)
RRC lease
08-61184

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Where it sits

This county

Midland CountyMidlandMartinAndrewsGlasscockHowardEctorMidland County
Midland County
Gas, last 12 months
388,885 mcf
Oil in Jul 2026
10,019 bbl

Production by month

Oil output fell 57% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 57% over the last 12 monthsMonthly oil production and gas for SHACKELFORD 40-12AB, Jul 2024 to Jul 2026. Oil output fell 57% over the last 12 months. 129,139 bbl in the 12 months through Jul 2026, against 301,447 bbl in the 12 months before.Last 12 months: 129,139 bblbbl per monthmcf per month0010k20k20k40k30k60k40k80kJul 24OctJan 25AprJulOctJan 26AprJul
Oil output fell 57% over the last 12 monthsMonthly oil production and gas for SHACKELFORD 40-12AB, Jul 2024 to Jul 2026. Oil output fell 57% over the last 12 months. 129,139 bbl in the 12 months through Jul 2026, against 301,447 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month0010k20k20k40k30k60k40k80kJul 24Jan 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

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
Over 99% of the gas went to a processing plant in the last 12 monthsShare of SHACKELFORD 40-12AB gas by disposition code each month, Jul 2024 to Jul 2026. Over 99% of the gas went to a processing plant in the last 12 months.Share of the lease’s gas by disposition code, per month0%50%100%Jul 24OctJan 25AprJulOctJan 26AprJul
Over 99% of the gas went to a processing plant in the last 12 monthsShare of SHACKELFORD 40-12AB gas by disposition code each month, Jul 2024 to Jul 2026. Over 99% of the gas went to a processing plant in the last 12 months.Share of gas by disposition code0%50%100%Jul 24Jan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    100% · 387,195 mcf

  • Flared (4)

    0.3% · 1,355 mcf

  • Lease fuel (1)

    0.1% · 335 mcf

0.3% of the gas flared in the last 12 months. No month above 3%.

1 well on this lease

Wells on SHACKELFORD 40-12AB
API numberWell no.Status
42-329-4594528HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Energy Transfer CompanyOilGathers34Apr 1, 2025–
Oasis Transp & Marketing Corp.OilGathers33Apr 1, 2025–
Plains Marketing, L.p.OilGathers33Apr 1, 2025–
Targa Pl Mid-Cont Westtex LLCCasinghead gasBuys100Dec 11, 2023–
Targa Pl Mid-Cont Westtex LLCCasinghead gasGathers100Dec 11, 2023–
Centurion Pipeline L.p.OilGathers80Dec 11, 2023Apr 1, 2025
Oasis Transp & Marketing Corp.OilGathers10Dec 11, 2023Apr 1, 2025
Plains Marketing, L.p.OilGathers10Dec 11, 2023Apr 1, 2025

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

Who buys my oilOil price check

1,638.90 acres on the newest permit

  • Worth asking

    An allocation well is on this lease

    A well drilled across several tracts shares its production by an allocation formula, so the decimal is not always your acres over the unit acres. Ask the operator for the allocation formula and the tract factor for your land.

  • 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 Shackelford 40-12AB
API numberWell no.Acreson the permit
42-329-4594528H1,638.90

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

Unit decimal checker

Estimate your royalty

25 months, newest first

Ledger for SHACKELFORD 40-12AB
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 202610,01910,00228,35628,30430$80.46$2.89
Jun 20262,0482,0586,9276,9137$84.81$3.15
May 20266,7906,79521,58321,5630$102.13$2.94
Apr 20267,7457,74725,94025,90711$100.32$2.77
Mar 20269,3149,31331,69731,65022$91.38$3.04
Feb 20269,4339,43332,98532,809150$64.51$3.62
Jan 202611,74011,74642,38642,139215$60.04$7.72
Dec 202513,56113,55842,20241,301869$57.97$4.26
Nov 202513,81613,81143,16843,10825$60.06$3.79
Oct 202515,80215,80645,16345,11510$60.89$3.19
Sep 202514,26714,29731,57131,5401$63.96$2.97
Aug 202514,60414,66636,90736,84615$64.86$2.91
Jul 202512,72012,68731,56731,4911$68.39$3.20
Jun 202517,02317,02148,63548,5472$68.17$3.02
May 202514,92214,92532,73832,508135$62.17$3.12
Apr 202519,01319,00843,87843,76625$63.54$3.42
Mar 202521,84921,90047,50347,4260$68.24$4.12
Feb 202522,79822,76746,70246,6233$71.53$4.19
Jan 202528,90928,92052,39052,156138$75.74$4.13
Dec 202431,89231,94752,94152,8590$70.12$3.01
Nov 202431,15731,07140,32040,2521$69.95$2.12
Oct 202434,16534,17640,21340,1471$71.99$2.20
Sep 202434,41434,39137,77837,7122$70.24$2.28
Aug 202432,58532,58236,55436,4698$76.68$1.99
Jul 202417,75817,69512,46012,39418$81.80$2.07

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

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

Pioneer Natural Res. USA, Inc. in Midland County

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Spraberry (Trend Area) field

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