UNIVERSITY -A-

Oil · District 10 · Lease #12230

Operator: STEPHENS & JOHNSON OPERATING CO.

Cum Oil

230k BBL

Cum Gas

0 MCF

Wells

5

Production

1993-01 — 2026-03

Peak Month

1994-05

Production History

Cum Oil: 229,502 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

1,015 BBL/mo

Di (annual)

4.3%

b-factor

0.0

EUR

250,424 BBL

R-squared

0.762

type

exponential

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
8CONOCO INC.17,2501985-12-23
11CONOCO INC.17,2501985-11-20
10CONOCO INC.17,2001985-03-06
542-003-00280--------
742-003-00284--------
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