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STAR MAHAFFEY

Star Mahaffey is an oil lease in Sterling County, Texas, operated by Burk Royalty Co., Ltd. in the Conger (Penn) field.

3 wells

30bbl oil, last 12 months−21% vs prior year
Operator
Burk Royalty Co., Ltd.
County
Sterling County
Field
Conger (Penn)
RRC lease
08-29961

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Where it sits

This county

Sterling CountySterlingTom GreenMitchellNolanGlasscockHowardCokeSterling County
Sterling County
Gas, last 12 months
3,196 mcf
Oil in Jul 2026
2 bbl

Checks stopped on this lease?

  • Sales

    No sales reported for the last 4 months of state data (through Jul 2026).

SourceRailroad Commission production, P-5 and P-4 records, data through Jul 2026.

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Production by month

Oil output fell 21% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 21% over the last 12 monthsMonthly oil production and gas for STAR MAHAFFEY, Aug 2023 to Jul 2026. Oil output fell 21% over the last 12 months. 30 bbl in the 12 months through Jul 2026, against 38 bbl in the 12 months before.Last 12 months: 30 bblbbl per monthmcf per month00510010200153002040025500Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 21% over the last 12 monthsMonthly oil production and gas for STAR MAHAFFEY, Aug 2023 to Jul 2026. Oil output fell 21% over the last 12 months. 30 bbl in the 12 months through Jul 2026, against 38 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month00510010200153002040025500Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

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

All of the gas went to a processing plant in the last 12 monthsShare of STAR MAHAFFEY gas by disposition code each month, Aug 2023 to Jul 2026. All 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%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
All of the gas went to a processing plant in the last 12 monthsShare of STAR MAHAFFEY gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a processing plant in the last 12 months.Share of gas by disposition code0%50%100%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Who has run this lease

The operator changed 2 times, most recently in Jan 2022

Operators of this lease over timeStanolind Production LLC, Jan 2020 to Dec 2020; Slant Operating, LLC, Jan 2021 to Dec 2021; Burk Royalty Co., Ltd., Jan 2022 to Jul 20262020202120222023202420252026Changed Jan 2021Changed Jan 2022Stanolind Production LLCJan 2020 to Dec 2020Slant Operating, LLCJan 2021 to Dec 2021Burk Royalty Co., Ltd.Jan 2022 to now
Operators of this lease over timeStanolind Production LLC, Jan 2020 to Dec 2020; Slant Operating, LLC, Jan 2021 to Dec 2021; Burk Royalty Co., Ltd., Jan 2022 to Jul 20262020202120222023202420252026Changed Jan 2021Changed Jan 2022Stanolind Production LLCJan 2020 to Dec 2020Slant Operating, LLCJan 2021 to Dec 2021Burk Royalty Co., Ltd.Jan 2022 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

3 wells on this lease

Wells on STAR MAHAFFEY
API numberWell no.Status
42-431-316143Active
42-431-316151Active
42-431-316162Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Bml, Inc. BOilGathers100Mar 1, 2026–
Targa Pipeline Mid-Continent LLCCasinghead gasBuys100Apr 1, 2023–
Targa Pipeline Mid-Continent LLCCasinghead gasGathers100Apr 1, 2023–
Energy Trans Crude Marketing LLCOilGathers100Apr 1, 2023Mar 1, 2026
Slant Operating, LLCCasinghead gasGathers100Jan 1, 2021Apr 1, 2023
Slant Operating, LLCCasinghead gasBuys100Jan 1, 2021Apr 1, 2023
Plains Marketing, L.p.OilGathers100Nov 1, 2020Apr 1, 2023
Stanolind Production LLCCasinghead gasGathers100Nov 1, 2020Jan 1, 2021
Stanolind Production LLCCasinghead gasBuys100Nov 1, 2020Jan 1, 2021

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

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240 acres on the newest permit

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Permits for Star Mahaffey
API numberWell no.Acreson the permit
42-431-316143240
42-431-316151240
42-431-316162240

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

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36 months, newest first

Ledger for STAR MAHAFFEY
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Burk Royalty202972970$80.46$2.89
Jun 2026Burk Royalty102432430$84.81$3.15
May 2026Burk Royalty002932930$102.13$2.94
Apr 2026Burk Royalty002342340$100.32$2.77
Mar 2026Burk Royalty16462832830$91.38$3.04
Feb 2026Burk Royalty202612610$64.51$3.62
Jan 2026Burk Royalty202902900$60.04$7.72
Dec 2025Burk Royalty003083080$57.97$4.26
Nov 2025Burk Royalty103283280$60.06$3.79
Oct 2025Burk Royalty002952950$60.89$3.19
Sep 2025Burk Royalty201511510$63.96$2.97
Aug 2025Burk Royalty402132130$64.86$2.91
Jul 2025Burk Royalty402762760$68.39$3.20
Jun 2025Burk Royalty302862860$68.17$3.02
May 2025Burk Royalty503013010$62.17$3.12
Apr 2025Burk Royalty103223220$63.54$3.42
Mar 2025Burk Royalty202892890$68.24$4.12
Feb 2025Burk Royalty402872870$71.53$4.19
Jan 2025Burk Royalty2683413410$75.74$4.13
Dec 2024Burk Royalty1103333330$70.12$3.01
Nov 2024Burk Royalty103693690$69.95$2.12
Oct 2024Burk Royalty203153150$71.99$2.20
Sep 2024Burk Royalty102582580$70.24$2.28
Aug 2024Burk Royalty203363360$76.68$1.99
Jul 2024Burk Royalty104184180$81.80$2.07
Jun 2024Burk Royalty203253250$79.77$2.54
May 2024Burk Royalty204314310$80.02$2.12
Apr 2024Burk Royalty101141140$85.35$1.60
Mar 2024Burk Royalty303163160$81.28$1.49
Feb 2024Burk Royalty403013010$77.25$1.72
Jan 2024Burk Royalty203143140$74.15$3.18
Dec 2023Burk Royalty903183180$71.90$2.52
Nov 2023Burk Royalty1303123120$77.69$2.71
Oct 2023Burk Royalty503343340$85.64$2.98
Sep 2023Burk Royalty103493490$89.43$2.64
Aug 2023Burk Royalty203633630$81.39$2.58

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Oct 2, 2026.

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This lease belongs to

OperatorBurk Royalty Co., Ltd.FieldConger (Penn)CountySterling County

Burk Royalty Co., Ltd. in Sterling County

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Conger (Penn) field

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