KEYSTONE CATTLE COMPANY -A-

Oil · District 10 · Lease #30797

Operator: WOOD, MCSHANE & THAMS

Cum Oil

10k BBL

Cum Gas

0 MCF

Wells

7

Production

1993-01 — 2004-05

Peak Month

1993-05

Production History

Cum Oil: 10,372 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

355 BBL/mo

Di (annual)

42.4%

b-factor

0.0

EUR

10,008 BBL

R-squared

0.568

type

exponential

Wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
229CWOOD, MCSHANE & THAMS13,5501986-11-18
400WOOD, MCSHANE & THAMS13,5601986-11-18
219C42-495-01367--------
224C42-495-01371--------
233C42-495-01380--------
309C42-495-30004--------
47C42-495-01182--------
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