UNIVERSITY -11-

Oil · District 10 · Lease #32501

Operator: STEPHENS & JOHNSON OPERATING CO.

Cum Oil

170k BBL

Cum Gas

0 MCF

Wells

2

Production

1993-01 — 2026-03

Peak Month

2005-10

Production History

Cum Oil: 169,819 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

1,092 BBL/mo

Di (annual)

25.0%

b-factor

1.0

EUR

136,231 BBL

R-squared

0.828

type

hyperbolic

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2STEPHENS & JOHNSON OPERATING CO.17,5002005-04-28
1CONOCO INC.37,0501989-12-12
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