G, T, ALLISON OIL UNIT -B-

Oil · District 6 · Lease #13963

Operator: VASTAR RESOURCES, INC.

Cum Oil

29k BBL

Cum Gas

0 MCF

Wells

1

Production

1999-08 — 2007-01

Peak Month

1999-08

Production History

Cum Oil: 29,189 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

1,840 BBL/mo

Di (annual)

121.2%

b-factor

0.5

EUR

35,309 BBL

R-squared

0.873

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
11 UVASTAR RESOURCES, INC.211,0001999-07-14
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