O'BRIEN

Oil · District 08 · Lease #37572

Operator: ROFF OPERATING COMPANY, LLC

Cum Oil

76k BBL

Cum Gas

111k MCF

casinghead

Wells

1

Production

2005-01 — 2011-04

Peak Month

2005-02

Production History

Cum Oil: 76,274 BBL Cum Gas: 110,882 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,591 BBL/mo

Di (annual)

16.6%

b-factor

0.0

EUR

115,170 BBL

R-squared

0.911

type

exponential

Operator History (from monthly production reports)

2005-01 — 2011-07 ROFF OPERATING COMPANY, LLC 79 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1OVINTIV USA INC.19,0002004-08-27