NEAL "8"

Oil · District 7C · Lease #15800

Operator: ZARVONA ENERGY LLC

Fields: SPRABERRY (TREND AREA)

Cum Oil

231k BBL

Cum Gas

805k MCF

casinghead

Wells

6

Production

2005-07 — 2026-04

Peak Month

2006-12

Production History

Cum Oil: 230,964 BBL Cum Gas: 805,331 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,278 BBL/mo

Di (annual)

28.2%

b-factor

0.5

EUR

244,119 BBL

R-squared

0.738

type

hyperbolic

Operator History (from monthly production reports)

2025-10 — 2026-07 SAXUM OPCO, LLC 10 mo

2021-06 — 2025-09 ZARVONA ENERGY LLC 52 mo

2012-07 — 2021-05 DIAMONDBACK E&P LLC 107 mo

2010-03 — 2012-06 WINDSOR PERMIAN LLC 28 mo

2008-01 — 2010-02 WINDSOR ENERGY GROUP, L.L.C. 26 mo

2006-04 — 2007-12 EXL PETROLEUM, LP 21 mo

2005-07 — 2006-03 JM COX RESOURCES, L.P. 9 mo

Wells (6)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
5	42-461-35967	SAXUM OPCO, LLC	1	10,474	2008-07-11
7	42-461-35971	SAXUM OPCO, LLC	4	11,900	2008-07-11
4	42-461-35267	SAXUM OPCO, LLC	1	11,000	2007-01-29
3	42-461-35124	SAXUM OPCO, LLC	1	11,000	2006-07-07
2	42-461-34954	SAXUM OPCO, LLC	1	10,900	2005-11-28
1	42-461-34837	SAXUM OPCO, LLC	2	10,900	2005-04-29