Texas oil lease

Producing

EPSTEIN-BALBOA -A-

Name: EPSTEIN-BALBOA -A- monthly oil and gas production, Bexar County, Texas
Creator: Texas Railroad Commission

Epstein-Balboa -A- is an oil lease in Bexar County, Texas, operated by Calk, Roger D. in the Fairfield field.

7 wells

398bbl oil, last 12 months−19% vs prior year

Operator: Calk, Roger D.
County: Bexar County
Field: Fairfield
RRC lease: 01-09492

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Where it sits

This county

Bexar County

Oil in Jun 2026: 60 bbl
Reporting since: Jan 2020

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Sales
No sales reported for the last 5 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 19% over the last 12 months

Jul 2026 was not reported.

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 EPSTEIN-BALBOA -A-
API number	Well no.	Status
42-029-32221	1	Shut-in
42-029-32272	2	Shut-in
42-029-32566	3	Shut-in
42-029-32605	4	Shut-in
42-029-32643	5	Shut-in
42-029-32699	6	Shut-in
42-029-33904	8	Shut-in

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
Company	Product	Role	Share%	From
Gulfmark Energy, Inc.	Oil	Gathers	50	Jan 1, 2018
Shell Trading (Us) Company	Oil	Gathers	50	Jun 1, 2002

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

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46 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 Epstein-Balboa -A-
API number	Well no.	Permit issued	Completed	Acreson the permit	Type
42-029-33904	8	Aug 29, 1983	Nov 15, 1988	46	Vertical
42-029-32699	6	Dec 9, 1982	Feb 16, 1983	46	Vertical
42-029-32643	5	Nov 5, 1982	Dec 27, 1982	46	Vertical
42-029-32605	4	Oct 29, 1982	Jan 19, 1983	46	Vertical
42-029-32566	3	Sep 30, 1982	Jan 25, 1983	46	Vertical
42-029-32272	2	Jun 10, 1982	Jul 8, 1982	46	Vertical
42-029-32221	1	May 27, 1982	Jul 15, 1982	46	Vertical

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

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36 months, newest first

Ledger for EPSTEIN-BALBOA -A-
Month	Oil producedbbl	Oil soldbbl	WTI$/bbl	Henry Hub$/MMBtu
Jul 2026No report filed	–	–	$80.46	$2.89
Jun 2026	60	0	$84.81	$3.15
May 2026	20	0	$102.13	$2.94
Apr 2026	20	0	$100.32	$2.77
Mar 2026	40	0	$91.38	$3.04
Feb 2026	60	160	$64.51	$3.62
Jan 2026	20	0	$60.04	$7.72
Dec 2025	20	0	$57.97	$4.26
Nov 2025	20	0	$60.06	$3.79
Oct 2025	20	0	$60.89	$3.19
Sep 2025	20	0	$63.96	$2.97
Aug 2025	70	150	$64.86	$2.91
Jul 2025	28	148	$68.39	$3.20
Jun 2025	40	0	$68.17	$3.02
May 2025	40	0	$62.17	$3.12
Apr 2025	20	0	$63.54	$3.42
Mar 2025	20	0	$68.24	$4.12
Feb 2025	40	0	$71.53	$4.19
Jan 2025	40	0	$75.74	$4.13
Dec 2024	90	150	$70.12	$3.01
Nov 2024	40	0	$69.95	$2.12
Oct 2024	20	0	$71.99	$2.20
Sep 2024	38	148	$70.24	$2.28
Aug 2024	40	0	$76.68	$1.99
Jul 2024	20	0	$81.80	$2.07
Jun 2024	20	0	$79.77	$2.54
May 2024	20	150	$80.02	$2.12
Apr 2024	40	0	$85.35	$1.60
Mar 2024	40	0	$81.28	$1.49
Feb 2024	20	0	$77.25	$1.72
Jan 2024	20	0	$74.15	$3.18
Dec 2023	40	0	$71.90	$2.52
Nov 2023	28	148	$77.69	$2.71
Oct 2023	40	0	$85.64	$2.98
Sep 2023	40	0	$89.43	$2.64
Aug 2023	40	0	$81.39	$2.58

No report filed

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

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