UNIVERSITY -36-

Oil · District 10 · Lease #17838

Operator: UNION OIL COMPANY OF CALIFORNIA

Cum Oil

393k BBL

Cum Gas

0 MCF

Wells

7

Production

1993-01 — 2026-03

Peak Month

1993-06

Production History

Cum Oil: 393,046 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

9,328 BBL/mo

Di (annual)

28.0%

b-factor

0.0

EUR

400,188 BBL

R-squared

0.805

type

exponential

Wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2WTG EXPLORATION212,0002013-02-21
6PURE RESOURCES, L.P.112,8152003-04-10
1PURE RESOURCES, L.P.112,6362002-01-24
7PURE RESOURCES, L.P.112,7682002-01-17
3PURE RESOURCES, L.P.112,6652001-11-06
442-003-06577--------
542-003-06529--------
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