OBENHAUS -B-

Oil · District 09 · Lease #5744

Operator: ROBERTS & HAMMACK INC.

Fields: WICHITA COUNTY REGULAR

Cum Oil

5k BBL

Cum Gas

23 MCF

casinghead

Wells

5

Production

1993-01 — 2001-08

Peak Month

1993-01

Production History

Cum Oil: 5,483 BBL Cum Gas: 23 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

131 BBL/mo

Di (annual)

41.2%

b-factor

0.0

EUR

3,802 BBL

R-squared

0.459

type

exponential

Operator History (from monthly production reports)

2013-08 — 2026-07 ROBERTS & HAMMACK INC. 156 mo

2010-08 — 2013-07 JRJ OIL & GAS LLC 36 mo

2007-02 — 2010-07 AMES, ADRIAN 42 mo

2006-10 — 2007-01 DE LARIOS, R. V., LTD. 4 mo

2005-03 — 2006-09 BLACK PEARL OPERATING COMP., LLC 19 mo

2002-01 — 2005-02 BLACK PEARL ENERGY LLC 38 mo

2000-09 — 2001-12 PREMIERE CONSOLIDATED O&G LLC 16 mo

1998-02 — 2000-08 BIG RUN PRODUCTION COMPANY 31 mo

1994-12 — 1998-01 NEWBERRY, CHARLES D INC 38 mo

1993-01 — 1994-11 PALMER, JAMES W. 23 mo

Wells (5)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
18	42-485-42560	ROBERTS & HAMMACK INC.	1	1,990	1992-04-10
17	42-485-42419	ROBERTS & HAMMACK INC.	1	1,990	1991-08-26
11	42-485-86107	ROBERTS & HAMMACK INC.	--	--	--
13	42-485-86108	ROBERTS & HAMMACK INC.	--	--	--
6	42-485-86106	ROBERTS & HAMMACK INC.	--	--	--

OBENHAUS -B-

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 (5)

Production History