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Texas oil lease

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STILES 18A

Stiles 18A is an oil lease in Wheeler County, Texas, operated by Formentera Operations LLC in the Mills Ranch (Granite Wash Cons.) field.

1 well

1,080bbl oil, last 12 months−18% vs prior year
Operator
Formentera Operations LLC
County
Wheeler County
Field
Mills Ranch (Granite Wash Cons.)
RRC lease
10-09024

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Where it sits

This county

Wheeler CountyWheelerGrayHemphillRobertsWheeler County
Wheeler County
Gas, last 12 months
16,755 mcf
Oil in Jul 2026
114 bbl

Production by month

Oil output fell 18% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 18% over the last 12 monthsMonthly oil production and gas for STILES 18A, Aug 2023 to Jul 2026. Oil output fell 18% over the last 12 months. 1,080 bbl in the 12 months through Jul 2026, against 1,319 bbl in the 12 months before.Last 12 months: 1,080 bblbbl per monthmcf per month00501,0001002,0001503,0002004,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 18% over the last 12 monthsMonthly oil production and gas for STILES 18A, Aug 2023 to Jul 2026. Oil output fell 18% over the last 12 months. 1,080 bbl in the 12 months through Jul 2026, against 1,319 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month00501,0001002,0001503,0002004,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

82% of the gas went to a transmission line in the last 12 months

  • Transmission line (2)
  • Lease fuel (1)
82% of the gas went to a transmission line in the last 12 monthsShare of STILES 18A gas by disposition code each month, Aug 2023 to Jul 2026. 82% of the gas went to a transmission line in the last 12 months.Share of the lease’s gas by disposition code, per month0%50%100%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
82% of the gas went to a transmission line in the last 12 monthsShare of STILES 18A gas by disposition code each month, Aug 2023 to Jul 2026. 82% of the gas went to a transmission line 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.

  • Transmission line (2)

    82% · 13,692 mcf

  • Lease fuel (1)

    18% · 3,063 mcf

Who has run this lease

The operator changed once, most recently in Jun 2021

Operators of this lease over timeTapstone Energy, LLC, Jan 2020 to May 2021; Formentera Operations LLC, Jun 2021 to Jul 20262020202120222023202420252026Changed Jun 2021Tapstone Energy, LLCJan 2020 to May 2021Formentera Operations LLCJun 2021 to now
Operators of this lease over timeTapstone Energy, LLC, Jan 2020 to May 2021; Formentera Operations LLC, Jun 2021 to Jul 20262020202120222023202420252026Changed Jun 2021Tapstone Energy, LLCJan 2020 to May 2021Formentera Operations LLCJun 2021 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on STILES 18A
API numberWell no.Status
42-483-337321818HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Energy Trans Crude Marketing LLCOilGathers50Nov 19, 2025–
Plains Marketing, L.p.OilGathers50Nov 19, 2025–
Formentera Operations LLCCasinghead gasBuys100Jul 1, 2021–
Energy Transfer CompanyCasinghead gasGathers100Oct 1, 2023–
Plains Marketing, L.p.OilGathers100Sep 17, 2013Nov 19, 2025
Enable Gas Gathering, LLCCasinghead gasGathers100Jan 1, 2015Oct 1, 2023
Tapstone Energy, LLCCasinghead gasBuys100Jan 1, 2015Jul 1, 2021

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

Who buys my oilOil price check

320 acres on the newest permit

Permits for Stiles 18A
API numberWell no.Acreson the permit
42-483-337321818H320

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

Unit decimal checker

Estimate your royalty

36 months, newest first

Ledger for STILES 18A
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Formentera Operations1141431,1919610$80.46$2.89
Jun 2026Formentera Operations102831,1879610$84.81$3.15
May 2026Formentera Operations1121231,3721,1080$102.13$2.94
Apr 2026Formentera Operations95971,1949710$100.32$2.77
Mar 2026Formentera Operations1191691,3641,1160$91.38$3.04
Feb 2026Formentera Operations861131,3231,0880$64.51$3.62
Jan 2026Formentera Operations88231,1329300$60.04$7.72
Dec 2025Formentera Operations64711,3381,0960$57.97$4.26
Nov 2025Formentera Operations89671,5911,2970$60.06$3.79
Oct 2025Formentera Operations85801,6051,3120$60.89$3.19
Sep 2025Formentera Operations61361,6021,3130$63.96$2.97
Aug 2025Formentera Operations65821,8561,5390$64.86$2.91
Jul 2025Formentera Operations95941,7251,3720$68.39$3.20
Jun 2025Formentera Operations99891,7261,3590$68.17$3.02
May 2025Formentera Operations1071151,7861,4720$62.17$3.12
Apr 2025Formentera Operations1151151,7501,4400$63.54$3.42
Mar 2025Formentera Operations1521891,8931,5670$68.24$4.12
Feb 2025Formentera Operations129951,7761,4280$71.53$4.19
Jan 2025Formentera Operations1301391,6431,3400$75.74$4.13
Dec 2024Formentera Operations117921,7121,4160$70.12$3.01
Nov 2024Formentera Operations1041081,6961,3800$69.95$2.12
Oct 2024Formentera Operations94861,8461,5140$71.99$2.20
Sep 2024Formentera Operations81711,5581,2890$70.24$2.28
Aug 2024Formentera Operations96971,5491,2920$76.68$1.99
Jul 2024Formentera Operations1071101,4711,2220$81.80$2.07
Jun 2024Formentera Operations1341391,4901,2090$79.77$2.54
May 2024Formentera Operations1391371,5421,2640$80.02$2.12
Apr 2024Formentera Operations1201191,5841,3050$85.35$1.60
Mar 2024Formentera Operations101921,7761,4650$81.28$1.49
Feb 2024Formentera Operations1061151,7201,4230$77.25$1.72
Jan 2024Formentera Operations1561752,1271,7180$74.15$3.18
Dec 2023Formentera Operations1451211,8021,4880$71.90$2.52
Nov 2023Formentera Operations1301271,8121,4980$77.69$2.71
Oct 2023Formentera Operations1021201,9301,6040$85.64$2.98
Sep 2023Formentera Operations86742,3581,9760$89.43$2.64
Aug 2023Formentera Operations971002,5182,0870$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

OperatorFormentera Operations LLCFieldMills Ranch (Granite Wash Cons.)CountyWheeler County

Formentera Operations LLC in Wheeler County

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