Texas oil lease

Producing

HARTFIELD, MILLIE

Name: HARTFIELD, MILLIE monthly oil and gas production, Guadalupe County, Texas
Creator: Texas Railroad Commission

Hartfield, Millie is an oil lease in Guadalupe County, Texas, operated by Donoco Oil Company in the LA Vernia field.

7 wells

112bbl oil, last 12 months−30% vs prior year

Operator: Donoco Oil Company
County: Guadalupe County
Field: LA Vernia
RRC lease: 01-02672

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Where it sits

This county

Guadalupe County

Oil in Jul 2026: 15 bbl
Reporting since: Jan 2020

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Sales
No sales reported for the last 2 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 30% over the last 12 months

Oil (bars)
Last 12 months

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

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.

7 wells on this lease

Wells on HARTFIELD, MILLIE
API number	Well no.	Status
42-187-02127	2	Active
42-187-02128	3	Active
42-187-02129	4	Active
42-187-32602	1A	Active
42-187-32603	2A	Active
42-187-32764	3A	Active
42-187-80291	1	Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
Company	Product	Role	Share%	From	Until
4J Energy, LLC	Oil	Gathers	50	Jun 1, 2025	–
Midcon Gathering LLC	Oil	Gathers	50	Jun 1, 2025	–
4J Energy, LLC	Oil	Gathers	100	May 1, 2023	Jun 1, 2025
Ace Gathering, Inc.	Oil	Gathers	60	Feb 1, 2018	May 1, 2023
Sunray Marketing, LLC	Oil	Gathers	40	Feb 1, 2018	May 1, 2023

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

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30 acres on the newest permit

Good to know
7 wells are listed on this lease
Each well can have its own unit. The decimal for one well does not have to equal the decimal for another.

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Permits for Hartfield, Millie
API number	Well no.	Permit issued	Completed	Acreson the permit	Type
42-187-32764	3A	Apr 26, 1984	Jun 11, 1984	30	Vertical
42-187-32602	1A	Aug 15, 1983	Nov 20, 1983	30	Vertical
42-187-32603	2A	Aug 15, 1983	Feb 11, 1984	30	Vertical
42-187-02127	2	–	Jan 12, 1984	–	–
42-187-02128	3	–	Jan 12, 1984	–	–
42-187-02129	4	–	Apr 11, 1960	–	–
42-187-80291	1	–	Jan 12, 1984	–	–

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

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36 months, newest first

Ledger for HARTFIELD, MILLIE
Month	Oil producedbbl	Oil soldbbl	WTI$/bbl	Henry Hub$/MMBtu
Jul 2026	15	0	$80.46	$2.89
Jun 2026	11	0	$84.81	$3.15
May 2026	10	91	$102.13	$2.94
Apr 2026	9	0	$100.32	$2.77
Mar 2026	9	0	$91.38	$3.04
Feb 2026	9	0	$64.51	$3.62
Jan 2026	9	0	$60.04	$7.72
Dec 2025	8	0	$57.97	$4.26
Nov 2025	8	91	$60.06	$3.79
Oct 2025	8	0	$60.89	$3.19
Sep 2025	8	0	$63.96	$2.97
Aug 2025	8	0	$64.86	$2.91
Jul 2025	11	0	$68.39	$3.20
Jun 2025	10	0	$68.17	$3.02
May 2025	11	75	$62.17	$3.12
Apr 2025	14	0	$63.54	$3.42
Mar 2025	14	0	$68.24	$4.12
Feb 2025	14	0	$71.53	$4.19
Jan 2025	13	0	$75.74	$4.13
Dec 2024	14	0	$70.12	$3.01
Nov 2024	14	0	$69.95	$2.12
Oct 2024	15	0	$71.99	$2.20
Sep 2024	15	89	$70.24	$2.28
Aug 2024	14	0	$76.68	$1.99
Jul 2024	16	0	$81.80	$2.07
Jun 2024	16	0	$79.77	$2.54
May 2024	18	0	$80.02	$2.12
Apr 2024	17	0	$85.35	$1.60
Mar 2024	18	0	$81.28	$1.49
Feb 2024	13	113	$77.25	$1.72
Jan 2024	12	0	$74.15	$3.18
Dec 2023	13	0	$71.90	$2.52
Nov 2023	13	0	$77.69	$2.71
Oct 2023	12	0	$85.64	$2.98
Sep 2023	12	0	$89.43	$2.64
Aug 2023	17	0	$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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