UNIVERSITY 42-23

Oil · District 9 · Lease #16864

Operator: APPROACH OPERATING LLC

Cum Oil

8k BBL

Cum Gas

0 MCF

Wells

1

Production

2008-11 — 2011-02

Peak Month

2008-12

Production History

Cum Oil: 8,289 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

479 BBL/mo

Di (annual)

37.9%

b-factor

0.5

EUR

27,395 BBL

R-squared

0.575

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5APPROACH OPERATING LLC19,0002008-07-30
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