CATHY

Oil · District 7C · Lease #16676

Operator: ZARVONA ENERGY LLC

Fields: SPRABERRY (TREND AREA)

Cum Oil

79k BBL

Cum Gas

247k MCF

casinghead

Wells

2

Production

2008-09 — 2026-04

Peak Month

2009-09

Production History

Cum Oil: 79,340 BBL Cum Gas: 247,259 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

502 BBL/mo

Di (annual)

6.1%

b-factor

0.0

EUR

94,717 BBL

R-squared

0.335

type

exponential

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

2008-09 — 2010-02 WINDSOR ENERGY GROUP, L.L.C. 18 mo

Wells (2)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
5	42-461-35759	SAXUM OPCO, LLC	2	10,107	2009-02-04
1	42-461-35745	SAXUM OPCO, LLC	1	10,111	2008-03-18