PENDERGRAFT -A-

Oil · District 11 · Lease #69431

Operator: ROFF OPERATING COMPANY, LLC

Cum Oil

131k BBL

Cum Gas

0 MCF

Wells

1

Production

2009-08 — 2015-09

Peak Month

2010-05

Production History

Cum Oil: 131,423 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

4,490 BBL/mo

Di (annual)

48.5%

b-factor

0.0

EUR

111,127 BBL

R-squared

0.982

type

exponential

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1ROFF OPERATING COMPANY, LLC19,0002008-11-14
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