POWELL 11A

Oil · District 08 · Lease #40214

Operator: VANGUARD PERMIAN, LLC

Fields: COBRA (WOLFCAMP)

Cum Oil

304k BBL

Cum Gas

884k MCF

casinghead

Wells

1

Production

2010-05 — 2019-08

Peak Month

2010-08

Production History

Cum Oil: 303,635 BBL Cum Gas: 884,157 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,686 BBL/mo

Di (annual)

18.1%

b-factor

0.0

EUR

310,953 BBL

R-squared

0.532

type

exponential

Operator History (from monthly production reports)

2017-07 — 2021-01 OXY USA INC. 43 mo

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

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

2010-05 — 2013-03 RANGE PRODUCTION COMPANY 35 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1R	42-173-33636	OXY USA INC.	1	8,500	2010-03-26