WEBB "A"

Oil · District 11 · Lease #62520

Operator: GRAHAM ROYALTY, LTD.

Cum Oil

10k BBL

Cum Gas

0 MCF

Wells

1

Production

1993-01 — 1996-10

Peak Month

1993-01

Production History

Cum Oil: 9,765 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

288 BBL/mo

Di (annual)

14.8%

b-factor

0.0

EUR

23,262 BBL

R-squared

0.515

type

exponential

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1PRIZE OPERATING COMPANY511,5002004-06-01
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