HOLZGRAF, ORA "B"

Oil · District 7C · Lease #15408

Operator: HENRY PETROLEUM LP

Cum Oil

258k BBL

Cum Gas

516k MCF

casinghead

Wells

6

Production

2003-05 — 2010-04

Peak Month

2008-05

Production History

Cum Oil: 257,538 BBL Cum Gas: 516,448 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

5,912 BBL/mo

Di (annual)

150.6%

b-factor

2.0

EUR

532,994 BBL

R-squared

0.816

type

hyperbolic

Operator History (from monthly production reports)

2009-01 — 2010-07 COG OPERATING LLC 19 mo
2003-05 — 2008-12 HENRY PETROLEUM LP 68 mo

Wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5407COG OPERATING LLC210,9002007-10-09
5406COG OPERATING LLC110,8002007-04-02
5405COG OPERATING LLC110,5002004-05-12
5402COG OPERATING LLC210,3002003-10-13
5404COG OPERATING LLC210,7002003-08-05
5401COG OPERATING LLC110,6332003-02-13