UNIVERSITY -5-

Oil · District 10 · Lease #31980

Operator: UNION OIL COMPANY OF CALIFORNIA

Fields: BAKKE (PENN.)

Cum Oil

79k BBL

Cum Gas

0 MCF

Wells

1

Production

1993-01 — 2004-08

Peak Month

1993-04

Production History

Cum Oil: 79,407 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

1,149 BBL/mo

Di (annual)

35.2%

b-factor

1.3

EUR

140,950 BBL

R-squared

0.329

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4ESTORIL PRODUCING CORPORATION19,5001980-01-04
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