ECHOLS

Oil · District 8A · Lease #69311

Operator: ROFF OPERATING COMPANY, LLC

Cum Oil

20k BBL

Cum Gas

0 MCF

Wells

1

Production

2008-11 — 2022-06

Peak Month

2009-04

Production History

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

RRC production reported through Apr 2026 · recent months incomplete

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

Operator History (from monthly production reports)

2008-11 — 2022-11 ROFF OPERATING COMPANY, LLC 169 mo

Wells (1)

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