JENDRZEY UNIT

Oil · District 01 · Lease #15798

Operator: WESTOIL LLC

Fields: MARCELINA CREEK (AUSTIN CHALK)

Cum Oil

124k BBL

Cum Gas

70k MCF

casinghead

Wells

1

Production

2010-10 — 2024-08

Peak Month

2011-08

Production History

Cum Oil: 124,156 BBL Cum Gas: 70,451 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

7,835 BBL/mo

Di (annual)

88.2%

b-factor

0.1

EUR

118,397 BBL

R-squared

0.854

type

hyperbolic

Operator History (from monthly production reports)

2025-10 — 2026-07 WESTOIL LLC 10 mo

2023-09 — 2025-09 PORTENTUM ENERGY CO. 25 mo

2017-04 — 2023-08 PROGENIES OPERATING LLC 77 mo

2016-06 — 2017-03 BXP OPERATING, LLC 10 mo

2012-10 — 2016-05 ARGENT ENERGY (US) HOLDINGS INC. 44 mo

2010-10 — 2012-09 DENALI OIL & GAS MANAGEMENT, LLC 24 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1H	42-493-32553	WESTOIL LLC	1	10,500	2010-09-29