MONTGOMERY "4"

Oil · District 8A · Lease #69626

Operator: CHI OPERATING, INC.

Cum Oil

7k BBL

Cum Gas

5k MCF

casinghead

Wells

1

Production

2010-07 — 2011-11

Peak Month

2011-08

Production History

Cum Oil: 7,021 BBL Cum Gas: 4,906 MCF

RRC production reported through Apr 2026 · recent months incomplete

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

Operator History (from monthly production reports)

2010-07 — 2012-04 CHI OPERATING, INC. 22 mo

Wells (1)

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