HOLT "B"

Oil · District 09 · Lease #30851

Operator: GONZENBACH OIL & GAS, LLC

Cum Oil

10k BBL

Cum Gas

9k MCF

casinghead

Wells

1

Production

2007-05 — 2011-03

Peak Month

2007-08

Production History

Cum Oil: 10,299 BBL Cum Gas: 9,218 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

911 BBL/mo

Di (annual)

637.6%

b-factor

1.7

EUR

30,339 BBL

R-squared

0.841

type

hyperbolic

Operator History (from monthly production reports)

2020-01 — 2026-07 EXTECH OPERATING, LLC 79 mo
2017-01 — 2019-12 GONZENBACH OIL & GAS, LLC 36 mo
2007-05 — 2016-12 GLEN D. GONZENBACH, LLC 116 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1EXTECH OPERATING, LLC25,3002011-05-12