TUBB, HORACE -A-

Oil · District 08 · Lease #28246

Operator: WHETSTONE RESOURCES, LLC

Fields: MOORE

Cum Oil

14k BBL

Cum Gas

20 MCF

casinghead

Wells

4

Production

1993-01 — 2020-12

Peak Month

1993-07

Production History

Cum Oil: 14,453 BBL Cum Gas: 20 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

191 BBL/mo

Di (annual)

12.9%

b-factor

0.0

EUR

17,603 BBL

R-squared

0.552

type

exponential

Operator History (from monthly production reports)

2024-01 — 2026-07 JOHNSON OPERATING COMPANY, LLC. 31 mo

2022-03 — 2023-12 HIGH DESERT RESOURCES, L.L.C. 22 mo

2021-01 — 2022-02 WHETSTONE RESOURCES, LLC 14 mo

2006-02 — 2020-12 MILLENNIUM RESOURCES, LP 179 mo

2003-01 — 2006-01 MILLENNIUM RESOURCES, LLC. 37 mo

2002-03 — 2002-12 VACA OPERATING COMPANY LLC 10 mo

2001-03 — 2002-02 SCOPE OPERATING COMPANY 12 mo

1999-03 — 2001-02 RICHMAN PETROLEUM CORP. 24 mo

1994-08 — 1999-02 ALLEGRO OPERATING, INC. 55 mo

1994-02 — 1994-07 DUNE OIL AND GAS, INC. 6 mo

1993-11 — 1994-01 MIDPAR L.P. 3 mo

1993-01 — 1993-10 GRAHAM ROYALTY, LTD. 10 mo

Wells (4)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
8	42-227-32833	JOHNSON OPERATING COMPANY LLC.	1	3,500	1982-08-13
5	42-227-32839	JOHNSON OPERATING COMPANY LLC.	1	3,500	1982-08-10
6	42-227-32840	JOHNSON OPERATING COMPANY LLC.	1	3,500	1982-08-10
7	42-227-32841	JOHNSON OPERATING COMPANY LLC.	1	3,500	1982-08-10

TUBB, HORACE -A-

Production HistoryBeta Production data is a work in progress — still being validated against RRC filings. Spot something off or have questions? [email protected]

Decline Curve Analysis

Operator History (from monthly production reports)

Wells (4)

Production History