MONTGOMERY "4"

Oil · District 11 · Lease #69626

Operator: CHI OPERATING, INC.

Cum Oil

7k BBL

Cum Gas

0 MCF

Wells

1

Production

2010-07 — 2012-04

Peak Month

2010-11

Production History

Cum Oil: 7,021 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

790 BBL/mo

Di (annual)

89.9%

b-factor

0.0

EUR

10,539 BBL

R-squared

0.354

type

exponential

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1CHI OPERATING, INC.18,3002009-01-21
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