Texas oil lease

Producing

GUINN "A"

Name: GUINN "A" monthly oil and gas production, Tom Green County, Texas
Creator: Texas Railroad Commission

Guinn "A" is an oil lease in Tom Green County, Texas, operated by Core Petro, LLC in the Atkinson, W. (San Angelo) field.

1 well

22bbl oil, last 12 months−24% vs prior year

Operator: Core Petro, LLC
County: Tom Green County
Field: Atkinson, W. (San Angelo)
RRC lease: 7C-09223

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Where it sits

This county

Tom Green County

Oil in Jul 2026: 2 bbl
Reporting since: Jan 2020

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Operator
Operator changed: Core Petro, LLC took over from TCS Petroleum Co., LLC in Sep 2025.
Sales
No sales reported for the last 12 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 24% 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.

Who has run this lease

The operator changed 3 times, most recently in Sep 2025

Core Petro, LLC Sep 2025 to now
TCS Petroleum Co., LLC May 2022 to Aug 2025
Core Petro, LLC Jun 2021 to Apr 2022
Armor Petroleum, Inc. Jan 2020 to May 2021

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on GUINN "A"
API number	Well no.	Status
42-451-30801	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
Energy Trans Crude Marketing LLC	Oil	Gathers	100	Jul 1, 2021	–
Sunoco Ptnrs. Mktg.&terminals LP	Oil	Gathers	100	Apr 1, 2002	Jul 1, 2021

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

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57 acres on the newest permit

Good to know
The wells on this lease state different acreage
The permits state between 12 and 57 acres. Use the acres from your own division order for the well you are paid on.

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Permits for Guinn "A"
API number	Well no.	Permit issued	Completed	Acreson the permit	Type
42-451-30870	2	Dec 1, 1981	Dec 28, 1981	57	Vertical
42-451-30801	1	Jul 27, 1981	Sep 29, 1981	12	Vertical

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

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36 months, newest first

Ledger for GUINN "A"
Month	Operator	Oil producedbbl	WTI$/bbl	Henry Hub$/MMBtu
Jul 2026Core Petro,	Core Petro, LLC	2	$80.46	$2.89
Jun 2026Core Petro,	Core Petro, LLC	1	$84.81	$3.15
May 2026Core Petro,	Core Petro, LLC	2	$102.13	$2.94
Apr 2026Core Petro,	Core Petro, LLC	2	$100.32	$2.77
Mar 2026Core Petro,	Core Petro, LLC	1	$91.38	$3.04
Feb 2026Core Petro,	Core Petro, LLC	1	$64.51	$3.62
Jan 2026Core Petro,	Core Petro, LLC	1	$60.04	$7.72
Dec 2025Core Petro,	Core Petro, LLC	3	$57.97	$4.26
Nov 2025Core Petro,	Core Petro, LLC	1	$60.06	$3.79
Oct 2025Core Petro,	Core Petro, LLC	2	$60.89	$3.19
Sep 2025Core Petro,	Core Petro, LLC	4	$63.96	$2.97
Aug 2025TCS Petroleum	TCS Petroleum Co., LLC	2	$64.86	$2.91
Jul 2025TCS Petroleum	TCS Petroleum Co., LLC	3	$68.39	$3.20
Jun 2025TCS Petroleum	TCS Petroleum Co., LLC	4	$68.17	$3.02
May 2025TCS Petroleum	TCS Petroleum Co., LLC	4	$62.17	$3.12
Apr 2025TCS Petroleum	TCS Petroleum Co., LLC	2	$63.54	$3.42
Mar 2025TCS Petroleum	TCS Petroleum Co., LLC	3	$68.24	$4.12
Feb 2025TCS Petroleum	TCS Petroleum Co., LLC	2	$71.53	$4.19
Jan 2025TCS Petroleum	TCS Petroleum Co., LLC	1	$75.74	$4.13
Dec 2024TCS Petroleum	TCS Petroleum Co., LLC	2	$70.12	$3.01
Nov 2024TCS Petroleum	TCS Petroleum Co., LLC	3	$69.95	$2.12
Oct 2024TCS Petroleum	TCS Petroleum Co., LLC	1	$71.99	$2.20
Sep 2024TCS Petroleum	TCS Petroleum Co., LLC	2	$70.24	$2.28
Aug 2024TCS Petroleum	TCS Petroleum Co., LLC	2	$76.68	$1.99
Jul 2024TCS Petroleum	TCS Petroleum Co., LLC	1	$81.80	$2.07
Jun 2024TCS Petroleum	TCS Petroleum Co., LLC	3	$79.77	$2.54
May 2024TCS Petroleum	TCS Petroleum Co., LLC	3	$80.02	$2.12
Apr 2024TCS Petroleum	TCS Petroleum Co., LLC	1	$85.35	$1.60
Mar 2024TCS Petroleum	TCS Petroleum Co., LLC	1	$81.28	$1.49
Feb 2024TCS Petroleum	TCS Petroleum Co., LLC	2	$77.25	$1.72
Jan 2024TCS Petroleum	TCS Petroleum Co., LLC	1	$74.15	$3.18
Dec 2023TCS Petroleum	TCS Petroleum Co., LLC	1	$71.90	$2.52
Nov 2023TCS Petroleum	TCS Petroleum Co., LLC	1	$77.69	$2.71
Oct 2023TCS Petroleum	TCS Petroleum Co., LLC	1	$85.64	$2.98
Sep 2023TCS Petroleum	TCS Petroleum Co., LLC	2	$89.43	$2.64
Aug 2023TCS Petroleum	TCS Petroleum Co., LLC	1	$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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