COSEKA/SAXON-KEENEY "A"

Oil · District 9 · Lease #10547

Operator: HEC PETROLEUM, INC.

Cum Oil

62k BBL

Cum Gas

0 MCF

Wells

3

Production

1993-01 — 2013-06

Peak Month

2001-02

Production History

Cum Oil: 61,842 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

506 BBL/mo

Di (annual)

13.7%

b-factor

0.0

EUR

44,308 BBL

R-squared

0.474

type

exponential

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3HALLWOOD PETROLEUM, INC.311,0002000-11-01
1COSEKA RESOURCES (U.S.A.) LTD.19,3501983-11-18
2COSEKA RESOURCES (U.S.A.) LTD.19,3501983-11-18
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