WILLIAMS

Oil · District 11 · Lease #68793

Operator: CHISHOLM OPERATING, INC.

Cum Oil

132k BBL

Cum Gas

0 MCF

Wells

4

Production

2005-07 — 2010-11

Peak Month

2005-09

Production History

Cum Oil: 132,440 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

7,827 BBL/mo

Di (annual)

422.0%

b-factor

1.9

EUR

398,865 BBL

R-squared

0.954

type

hyperbolic

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4CHISHOLM OPERATING, INC.35,9992014-06-02
3CHISHOLM OPERATING, INC.15,9992005-06-07
2CHISHOLM OPERATING, INC.25,9992005-04-20
2LCHISHOLM OPERATING, INC.25,9992005-04-20
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