DUFFER 'C'

Oil · District 8 · Lease #29698

Operator: GEOSURVEYS, INC.

Cum Oil

1k BBL

Cum Gas

0 MCF

Wells

1

Production

2006-03 — 2026-03

Peak Month

2006-08

Production History

Cum Oil: 1,190 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

26 BBL/mo

Di (annual)

130.9%

b-factor

1.0

EUR

759 BBL

R-squared

0.370

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1GEOSURVEYS, INC.34,5002005-05-26
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