PETTITFILS 'B'

Oil · District 08 · Lease #37584

Operator: ENERVEST OPERATING, L.L.C.

Cum Oil

5k BBL

Cum Gas

142 MCF

casinghead

Wells

1

Production

2005-02 — 2008-01

Peak Month

2005-03

Production History

Cum Oil: 5,140 BBL Cum Gas: 142 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

242 BBL/mo

Di (annual)

113.5%

b-factor

2.0

EUR

24,857 BBL

R-squared

0.736

type

hyperbolic

Operator History (from monthly production reports)

2006-01 — 2008-04 ENERGEN RESOURCES CORPORATION 28 mo
2005-02 — 2005-12 ENERVEST OPERATING, L.L.C. 11 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
10BCE-MACH III LLC12,8502004-09-09