BILLINGTON

Oil · District 14 · Lease #8595

Operator: CHESAPEAKE OPERATING, INC.

Cum Oil

6k BBL

Cum Gas

0 MCF

Wells

1

Production

2011-02 — 2013-05

Peak Month

2011-05

Production History

Cum Oil: 6,119 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

2,017 BBL/mo

Di (annual)

527.6%

b-factor

0.5

EUR

9,046 BBL

R-squared

0.889

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2075HCHESAPEAKE OPERATING, INC.112,0002010-08-13
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