O'BRIEN C

Oil · District 10 · Lease #39256

Operator: ROFF OPERATING COMPANY, LLC

Cum Oil

33k BBL

Cum Gas

0 MCF

Wells

1

Production

2008-09 — 2011-07

Peak Month

2008-12

Production History

Cum Oil: 33,409 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

1,413 BBL/mo

Di (annual)

33.4%

b-factor

0.8

EUR

123,441 BBL

R-squared

0.764

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1ROFF OPERATING COMPANY, LLC19,0002008-04-15
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