POWELL "9D"

Oil · District 08 · Lease #34307

Operator: VANGUARD PERMIAN, LLC

Fields: BLALOCK LAKE,S.(WOLFCAMP)

Cum Oil

930k BBL

Cum Gas

1.7M MCF

casinghead

Wells

1

Production

1994-10 — 2015-03

Peak Month

1999-12

Production History

Cum Oil: 929,595 BBL Cum Gas: 1,706,850 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

15,225 BBL/mo

Di (annual)

25.0%

b-factor

0.0

EUR

729,547 BBL

R-squared

0.905

type

exponential

Operator History (from monthly production reports)

2017-07 — 2020-07 OXY USA INC. 37 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

1998-04 — 1998-08 LOMAK PRODUCTION COMPANY 5 mo

1994-10 — 1998-03 TREND EXPLORATION COMPANY 42 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
53D	42-173-32459	OXY USA INC.	1	8,600	1994-09-22