FORGEY -93-

Oil · District 10 · Lease #4637

Operator: PENNZOIL PETROLEUM COMPANY

Fields: GEM-HEMPHILL (DOUGLAS LO.)

Cum Oil

8k BBL

Cum Gas

108k MCF

casinghead

Wells

1

Production

1993-01 — 2007-05

Peak Month

2006-11

Production History

Cum Oil: 8,365 BBL Cum Gas: 108,488 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

120 BBL/mo

Di (annual)

30.9%

b-factor

0.2

EUR

5,713 BBL

R-squared

0.614

type

hyperbolic

Operator History (from monthly production reports)

2002-01 — 2010-06 BP AMERICA PRODUCTION COMPANY 102 mo

2000-04 — 2001-12 AMOCO PRODUCTION COMPANY 21 mo

1997-10 — 2000-03 CRESCENDO RESOURCES, L.P. 30 mo

1995-04 — 1997-09 MIDGARD ENERGY COMPANY 30 mo

1995-02 — 1995-03 PENNZOIL EXPLORATION & PROD. CO. 2 mo

1993-01 — 1995-01 PENNZOIL PETROLEUM COMPANY 25 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
4093	42-211-30698	GULF OIL CORP.	2	8,900	1980-12-31