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Texas oil lease

Shut in

ESTILL HALLEY UNIT

Estill Halley Unit is an oil lease in Winkler County, Texas, operated by Penwell South Operating LLC in the Halley field.

2 wells

0bbl oil, last 12 months
Operator
Penwell South Operating LLC
County
Winkler County
Field
Halley
RRC lease
08-21560

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Where it sits

This county

Winkler CountyWinklerAndrewsWardLovingEctorWinkler County
Winkler County
Oil in Apr 2026
0 bbl
Reporting since
Jan 2020

Production by month

No production to chart

The state shows zero oil and zero gas for all 33 months we hold (Aug 2023 to Jul 2026). A lease that is shut in or newly reported looks like this. The ledger below lists each month.

Where the gas went

No gas disposition reported for this lease

The operator has not reported where the gas went in the months we hold.

Who has run this lease

The operator changed once, most recently in May 2025

Operators of this lease over timeBlack Arrow Operating, LLC, Jan 2020 to Apr 2025; Penwell South Operating LLC, May 2025 to Apr 20262020202120222023202420252026Changed May 2025Black Arrow Operating, LLCJan 2020 to Apr 2025Penwell South Operating LLCMay 2025 to now
Operators of this lease over timeBlack Arrow Operating, LLC, Jan 2020 to Apr 2025; Penwell South Operating LLC, May 2025 to Apr 20262020202120222023202420252026Changed May 2025Black Arrow Operating, LLCJan 2020 to Apr 2025Penwell South Operating LLCMay 2025 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

2 wells on this lease

Wells on ESTILL HALLEY UNIT
API numberWell no.Status
42-495-008112Shut-in
42-495-008771Shut-in

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Bml, Inc. BOilGathers50Aug 1, 2026–
Oasis Transp & Marketing Corp.OilGathers50Aug 1, 2026–
Energy Transfer CompanyCasinghead gasBuys100Nov 1, 2015–
Energy Transfer CompanyCasinghead gasGathers100Nov 1, 2015–
Oasis Transp & Marketing Corp.OilGathers100May 1, 2025Aug 1, 2026
Energy Transfer Marketing & TermOilGathers10Dec 1, 2022May 1, 2025
Oasis Transp & Marketing Corp.OilGathers90Dec 1, 2020May 1, 2025
Sunoco Ptnrs. Mktg.&terminals LPOilGathers10Dec 1, 2020Dec 1, 2022
Sunoco Ptnrs. Mktg.&terminals LPOilGathers100Nov 1, 2019Dec 1, 2020
Enlink Crude Marketing, LLCOilGathers50May 1, 2018Nov 1, 2019

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

Who buys my oilOil price check

What the drilling permits say

Permits for Estill Halley Unit
API numberWell no.Acreson the permit
42-495-008112–
42-495-008112W–
42-495-008771–

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

Unit decimal checker

Estimate your royalty

36 months, newest first

Ledger for ESTILL HALLEY UNIT
MonthOil producedbblOil soldbblWTI$/bblHenry Hub$/MMBtu
Jul 2026No report––$80.46$2.89
Jun 2026No report––$84.81$3.15
May 2026No report––$102.13$2.94
Apr 2026Penwell South00$100.32$2.77
Mar 2026Penwell South00$91.38$3.04
Feb 2026Penwell South00$64.51$3.62
Jan 2026Penwell South00$60.04$7.72
Dec 2025Penwell South00$57.97$4.26
Nov 2025Penwell South00$60.06$3.79
Oct 2025Penwell South00$60.89$3.19
Sep 2025Penwell South00$63.96$2.97
Aug 2025Penwell South00$64.86$2.91
Jul 2025Penwell South00$68.39$3.20
Jun 2025Penwell South00$68.17$3.02
May 2025Penwell South00$62.17$3.12
Apr 2025Black Arrow00$63.54$3.42
Mar 2025Black Arrow00$68.24$4.12
Feb 2025Black Arrow00$71.53$4.19
Jan 2025Black Arrow00$75.74$4.13
Dec 2024Black Arrow00$70.12$3.01
Nov 2024Black Arrow00$69.95$2.12
Oct 2024Black Arrow00$71.99$2.20
Sep 2024Black Arrow00$70.24$2.28
Aug 2024Black Arrow00$76.68$1.99
Jul 2024Black Arrow00$81.80$2.07
Jun 2024Black Arrow00$79.77$2.54
May 2024Black Arrow00$80.02$2.12
Apr 2024Black Arrow00$85.35$1.60
Mar 2024Black Arrow00$81.28$1.49
Feb 2024Black Arrow00$77.25$1.72
Jan 2024Black Arrow00$74.15$3.18
Dec 2023Black Arrow00$71.90$2.52
Nov 2023Black Arrow00$77.69$2.71
Oct 2023Black Arrow00$85.64$2.98
Sep 2023Black Arrow00$89.43$2.64
Aug 2023Black Arrow00$81.39$2.58

No report filed

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

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Nearby

This lease belongs to

OperatorPenwell South Operating LLCFieldHalleyCountyWinkler County

Penwell South Operating LLC in Winkler County

No other producing leases from this operator in this county are in our data yet.

Halley field

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