UNIVERSITY 42-23

Oil · District 7C · Lease #16864

Operator: APPROACH OPERATING LLC

Cum Oil

8k BBL

Cum Gas

28k MCF

casinghead

Wells

1

Production

2008-11 — 2010-08

Peak Month

2008-12

Production History

Cum Oil: 8,289 BBL Cum Gas: 28,497 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

479 BBL/mo

Di (annual)

37.9%

b-factor

0.5

EUR

27,395 BBL

R-squared

0.575

type

hyperbolic

Operator History (from monthly production reports)

2008-11 — 2011-02 APPROACH OPERATING LLC 28 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5ZARVONA ENERGY LLC19,0002008-07-30