COWAN-MCKINNEY -A-

Oil · District 13 · Lease #24179

Operator: WILLOWBEND INVESTMENTS, INC.

Cum Oil

14k BBL

Cum Gas

0 MCF

Wells

4

Production

1993-01 — 2012-03

Peak Month

1994-07

Production History

Cum Oil: 13,580 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

115 BBL/mo

Di (annual)

8.8%

b-factor

0.0

EUR

15,470 BBL

R-squared

0.426

type

exponential

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5LUNN, WILL11,6001990-09-14
3LUNN, WILL11,6001984-09-19
2LUNN, WILL11,6001984-04-17
1LUNN, WILL11,6001983-12-30
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