UNIVERSITY 42-21

Oil · District 7C · Lease #17578

Operator: APPROACH OPERATING LLC

Cum Oil

18k BBL

Cum Gas

116k MCF

casinghead

Wells

1

Production

2011-05 — 2013-09

Peak Month

2011-06

Production History

Cum Oil: 18,131 BBL Cum Gas: 116,020 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,728 BBL/mo

Di (annual)

331.8%

b-factor

1.3

EUR

51,274 BBL

R-squared

0.862

type

hyperbolic

Operator History (from monthly production reports)

2011-05 — 2015-12 APPROACH OPERATING LLC 56 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HZARVONA ENERGY LLC26,5002011-02-09