COLLIER, GAYLAN JANE 519

Oil · District 11 · Lease #67453

Operator: GREAT WESTERN ONSHORE INC.

Cum Oil

7k BBL

Cum Gas

0 MCF

Wells

1

Production

1995-09 — 2008-03

Peak Month

1995-10

Production History

Cum Oil: 6,510 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

1,729 BBL/mo

Di (annual)

582.0%

b-factor

0.2

EUR

4,515 BBL

R-squared

0.938

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1O'BENCO, INC.38,3502013-12-11
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