ULS 6-35

Oil · District 08 · Lease #39843

Operator: ZARVONA ENERGY LLC

Fields: SPRABERRY (TREND AREA)

Cum Oil

12k BBL

Cum Gas

13k MCF

casinghead

Wells

2

Production

2009-12 — 2026-04

Peak Month

2010-02

Production History

Cum Oil: 12,036 BBL Cum Gas: 13,227 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

418 BBL/mo

Di (annual)

371.2%

b-factor

1.5

EUR

14,960 BBL

R-squared

0.725

type

hyperbolic

Operator History (from monthly production reports)

2024-05 — 2026-07 OVINTIV USA INC. 27 mo

2017-02 — 2024-04 ZARVONA ENERGY LLC 87 mo

2016-09 — 2017-01 PIONEER NATURAL RES. USA, INC. 5 mo

2010-09 — 2016-08 DEVON ENERGY PRODUCTION CO, L.P. 72 mo

2009-12 — 2010-08 HENRY RESOURCES LLC 9 mo

Wells (2)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
3	42-003-41110	OVINTIV USA INC.	1	11,000	2009-08-10
3503	42-003-41110	OVINTIV USA INC.	1	11,000	2009-08-10