HOUSTON OIL UNIT

Oil · District 4 · Lease #11982

Operator: VASTAR RESOURCES, INC.

Fields: DONNA (20-C)

Cum Oil

97k BBL

Cum Gas

0 MCF

Wells

1

Production

1993-01 — 2005-02

Peak Month

1993-01

Production History

Cum Oil: 97,382 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

2,305 BBL/mo

Di (annual)

27.7%

b-factor

0.0

EUR

99,944 BBL

R-squared

0.640

type

exponential

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5VASTAR RESOURCES, INC.48,5002000-05-09
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