ECHOLS

Oil · District 11 · Lease #69311

Operator: ROFF OPERATING COMPANY, LLC

Cum Oil

20k BBL

Cum Gas

0 MCF

Wells

1

Production

2008-11 — 2022-11

Peak Month

2009-04

Production History

Cum Oil: 19,686 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

231 BBL/mo

Di (annual)

43.0%

b-factor

2.0

EUR

36,295 BBL

R-squared

0.492

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1ROFF OPERATING COMPANY, LLC212,5002006-11-02
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