POWELL "15E"

Oil · District 08 · Lease #35782

Operator: VANGUARD PERMIAN, LLC

Fields: COBRA (WOLFCAMP)

Cum Oil

24k BBL

Cum Gas

52k MCF

casinghead

Wells

3

Production

1998-06 — 2001-03

Peak Month

1998-08

Production History

Cum Oil: 23,700 BBL Cum Gas: 52,301 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,433 BBL/mo

Di (annual)

175.3%

b-factor

0.0

EUR

9,816 BBL

R-squared

0.310

type

exponential

Operator History (from monthly production reports)

2017-07 — 2019-08 OXY USA INC. 26 mo

2015-05 — 2017-06 VANGUARD OPERATING, LLC 26 mo

2013-04 — 2015-04 VANGUARD PERMIAN, LLC 25 mo

1998-09 — 2013-03 RANGE PRODUCTION COMPANY 175 mo

1998-06 — 1998-08 LOMAK PRODUCTION COMPANY 3 mo

Wells (3)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
8	42-173-33015	OXY USA INC.	2	8,999	2000-01-07
1	42-173-32885	OXY USA INC.	1	8,500	1998-05-11
5	42-173-32885	OXY USA INC.	1	8,500	1998-05-11