GRANBERRY

Oil · District 3 · Lease #23252

Operator: WESTPORT OIL AND GAS COMPANY, LP

Cum Oil

143k BBL

Cum Gas

0 MCF

Wells

1

Production

1997-04 — 2008-08

Peak Month

1997-05

Production History

Cum Oil: 143,403 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

4,739 BBL/mo

Di (annual)

50.8%

b-factor

0.2

EUR

139,793 BBL

R-squared

0.472

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1UNITED OIL & MINERALS, INC.49,0002009-12-11
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