ROCKER "B" RANCH

Oil · District 9 · Lease #11101

Operator: VIOLA PROD., INC.

Cum Oil

95 BBL

Cum Gas

0 MCF

Wells

1

Production

1993-01 — 2003-08

Peak Month

1993-02

Production History

Cum Oil: 95 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

23 BBL/mo

Di (annual)

422.6%

b-factor

0.7

EUR

137 BBL

R-squared

0.487

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1LAVANCO ENERGY, LTD.49,4502010-06-04
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