COWDEN, HOUSTON -A-

Oil · District 08 · Lease #29879

Operator: WHETSTONE RESOURCES, LLC

Fields: MOORE

Cum Oil

21k BBL

Cum Gas

20 MCF

casinghead

Wells

6

Production

1993-01 — 2020-12

Peak Month

2001-03

Production History

Cum Oil: 20,969 BBL Cum Gas: 20 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

126 BBL/mo

Di (annual)

20.2%

b-factor

0.0

EUR

7,448 BBL

R-squared

0.392

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 (6)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
2	42-227-33723	MILLENNIUM RESOURCES, LP	2	3,500	1985-04-22
10	42-227-33244	JOHNSON OPERATING COMPANY LLC.	1	3,500	1983-08-31
12	42-227-33246	JOHNSON OPERATING COMPANY LLC.	1	3,500	1983-08-31
5	42-227-33234	JOHNSON OPERATING COMPANY LLC.	1	3,500	1983-08-31
6	42-227-33240	JOHNSON OPERATING COMPANY LLC.	1	3,500	1983-08-31
9	42-227-33243	JOHNSON OPERATING COMPANY LLC.	1	3,500	1983-08-31

COWDEN, HOUSTON -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 (6)

Production History