BRENNAND "A"

Oil · District 08 · Lease #33698

Operator: PETRA OLEUM CORP.

Fields: WESTBROOK (MISS)

Cum Oil

3k BBL

Cum Gas

50 MCF

casinghead

Wells

1

Production

1993-02 — 1997-05

Peak Month

1993-02

Production History

Cum Oil: 3,275 BBL Cum Gas: 50 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

313 BBL/mo

Di (annual)

502.9%

b-factor

1.2

EUR

5,945 BBL

R-squared

0.841

type

hyperbolic

Operator History (from monthly production reports)

1997-05 — 1999-04 PETRA OLEUM CORP. 24 mo

1997-02 — 1997-04 COSTILLA ENERGY, INC. 3 mo

1995-06 — 1997-01 COSTILLA PETROLEUM CORPORATION 20 mo

1995-03 — 1995-05 PARKER & PARSLEY DEVELOPMENT L.P 3 mo

1993-11 — 1995-02 MIDPAR L.P. 16 mo

1993-02 — 1993-10 GRAHAM ROYALTY, LTD. 9 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1	42-335-33251	PETRA OLEUM CORP.	2	8,275	1993-01-06