UNIVERSITY 42-23

Oil · District 7C · Lease #16861

Operator: APPROACH OPERATING LLC

Cum Oil

12k BBL

Cum Gas

78k MCF

casinghead

Wells

2

Production

2008-11 — 2010-08

Peak Month

2008-12

Production History

Cum Oil: 11,952 BBL Cum Gas: 77,956 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,533 BBL/mo

Di (annual)

403.5%

b-factor

1.2

EUR

34,194 BBL

R-squared

0.948

type

hyperbolic

Operator History (from monthly production reports)

2008-11 — 2010-12 APPROACH OPERATING LLC 26 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7ZARVONA ENERGY LLC19,0002008-10-16
4ZARVONA ENERGY LLC19,0002008-07-30