NANCY

Oil · District 9 · Lease #16957

Operator: COG OPERATING LLC

Cum Oil

24k BBL

Cum Gas

0 MCF

Wells

1

Production

2009-06 — 2015-11

Peak Month

2009-08

Production History

Cum Oil: 23,702 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

1,182 BBL/mo

Di (annual)

71.7%

b-factor

0.1

EUR

21,947 BBL

R-squared

0.856

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4901COG OPERATING LLC110,8002009-03-31
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