WINDHAM "A"

Oil · District 08 · Lease #37451

Operator: PERENCO LLC

Fields: SPRABERRY (TREND AREA)

Cum Oil

168k BBL

Cum Gas

334k MCF

casinghead

Wells

6

Production

2004-11 — 2026-04

Peak Month

2006-01

Production History

Cum Oil: 167,987 BBL Cum Gas: 333,809 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,431 BBL/mo

Di (annual)

24.1%

b-factor

0.1

EUR

134,339 BBL

R-squared

0.672

type

hyperbolic

Operator History (from monthly production reports)

2020-02 — 2026-07 OVINTIV USA INC. 78 mo

2018-03 — 2020-01 ENCANA OIL & GAS(USA) INC. 23 mo

2009-10 — 2018-02 ENDEAVOR ENERGY RESOURCES L.P. 101 mo

2005-05 — 2009-09 LCX ENERGY, LLC 53 mo

2004-11 — 2005-04 PERENCO LLC 6 mo

Wells (6)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1102	42-329-35375	OVINTIV USA INC.	1	10,600	2005-09-27
1101	42-329-35372	OVINTIV USA INC.	1	10,600	2005-09-23
1401	42-329-35135	OVINTIV USA INC.	1	10,600	2004-07-12
1402	42-329-35136	OVINTIV USA INC.	1	10,600	2004-07-12
1403	42-329-35137	OVINTIV USA INC.	1	10,600	2004-07-12
1404	42-329-35138	OVINTIV USA INC.	1	10,600	2004-07-12