CRYSTAL

Oil · District 7C · Lease #16130

Operator: ZARVONA ENERGY LLC

Fields: SPRABERRY (TREND AREA)

Cum Oil

63k BBL

Cum Gas

353k MCF

casinghead

Wells

2

Production

2007-01 — 2024-10

Peak Month

2014-09

Production History

Cum Oil: 62,735 BBL Cum Gas: 352,993 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,343 BBL/mo

Di (annual)

37.0%

b-factor

0.3

EUR

61,482 BBL

R-squared

0.595

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

2007-01 — 2007-12 EXL PETROLEUM, LP 12 mo

Wells (2)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
2	42-461-35779	SAXUM OPCO LLC	1	10,633	2008-04-11
1	42-461-35201	SAXUM OPCO LLC	1	11,000	2006-10-27