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Producing

SHERMINATOR 12-13 B

Sherminator 12-13 B is an oil lease in Glasscock County, Texas, operated by Black Swan Opco, LLC in the Spraberry (Trend Area) field.

1 well

38,979bbl oil, last 12 months
Operator
Black Swan Opco, LLC
County
Glasscock County
Field
Spraberry (Trend Area)
RRC lease
08-62393

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Where it sits

This county

Glasscock CountyGlasscockMitchellMartinSterlingMidlandHowardGlasscock County
Glasscock County
Gas, last 12 months
171,991 mcf
Oil in Jul 2026
523 bbl

Production by month

Oil output fell 91% since Oct 2024

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 91% since Oct 2024Monthly oil production and gas for SHERMINATOR 12-13 B, Oct 2024 to Jul 2026. Oil output fell 91% since Oct 2024. Monthly average of 1,338 bbl in the latest 3 months, against 15,496 bbl in the first 3.Last 12 months: 38,979 bblbbl per monthmcf per month005,00010k10k20k15k30k20k40k25k50kOct 24Jan 25AprJulOctJan 26AprJul
Oil output fell 91% since Oct 2024Monthly oil production and gas for SHERMINATOR 12-13 B, Oct 2024 to Jul 2026. Oil output fell 91% since Oct 2024. Monthly average of 1,338 bbl in the latest 3 months, against 15,496 bbl in the first 3.Last 12 monthsbbl per monthmcf per month005,00010k10k20k15k30k20k40k25k50kJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

85% of the gas went to a processing plant in the last 12 months

Flaring peaked at 100.0% of the gas in Oct 2024.

  • Processing plant (3)
  • Flared (4)
85% of the gas went to a processing plant in the last 12 monthsShare of SHERMINATOR 12-13 B gas by disposition code each month, Oct 2024 to Jul 2026. 85% of the gas went to a processing plant in the last 12 months. Flaring peaked at 100.0% of the gas in Oct 2024.Share of the lease’s gas by disposition code, per month0%50%100%Flared 100.0%Oct 24Jan 25AprJulOctJan 26AprJul
85% of the gas went to a processing plant in the last 12 monthsShare of SHERMINATOR 12-13 B gas by disposition code each month, Oct 2024 to Jul 2026. 85% of the gas went to a processing plant in the last 12 months. Flaring peaked at 100.0% of the gas in Oct 2024.Share of gas by disposition code0%50%100%Flared 100.0%Jan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    85% · 146,388 mcf

  • Flared (4)

    15% · 25,603 mcf

14.9% of the gas flared in the last 12 months. 6 months above 3%.

1 well on this lease

Wells on SHERMINATOR 12-13 B
API numberWell no.Status
42-173-391284WAActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Eastex Crude Company, LLCOilGathers50Oct 28, 2024
Plains Marketing, L.p.OilGathers50Oct 28, 2024
Targa Pl Mid-Cont Westtex LLCCasinghead gasBuys100Oct 28, 2024
Targa Pl Mid-Cont Westtex LLCCasinghead gasGathers100Oct 28, 2024

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

Who buys my oilOil price check

603.34 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 Sherminator 12-13 B
API numberWell no.Acreson the permit
42-173-391284WA603.34

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

Unit decimal checker

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22 months, newest first

Ledger for SHERMINATOR 12-13 B
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20265235504214210$80.46$2.89
Jun 20261,1181,1465,2125,2120$84.81$3.15
May 20262,3722,40210,23710,2370$102.13$2.94
Apr 20262,5752,4689,6369,6360$100.32$2.77
Mar 20266297443,1793,1790$91.38$3.04
Feb 20263,5363,58016,17714,3871,790$64.51$3.62
Jan 20263,6803,65918,7524618,706$60.04$7.72
Dec 20253,7743,78121,41019,8651,545$57.97$4.26
Nov 20254,0934,10618,07114,5243,547$60.06$3.79
Oct 20256,2566,25724,87924,8790$60.89$3.19
Sep 20254,8974,86020,64820,63315$63.96$2.97
Aug 20255,5265,62523,36923,3690$64.86$2.91
Jul 20256,5266,47425,48025,41070$68.39$3.20
Jun 20256,7826,86325,17525,1750$68.17$3.02
May 20257,3457,34125,28725,2870$62.17$3.12
Apr 20257,9387,84723,28923,2890$63.54$3.42
Mar 20259,7209,80828,86228,8620$68.24$4.12
Feb 202511,34411,28928,73328,7330$71.53$4.19
Jan 202516,64516,68636,66136,6610$75.74$4.13
Dec 202424,42824,49433,47933,368111$70.12$3.01
Nov 202421,19120,96921,79418,0673,727$69.95$2.12
Oct 20248707726730673$71.99$2.20

Flared above 3%

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

OperatorBlack Swan Opco, LLCFieldSpraberry (Trend Area)CountyGlasscock County

Black Swan Opco, LLC in Glasscock County

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Spraberry (Trend Area) field

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