POWELL "15"

Oil · District 08 · Lease #33747

Operator: VANGUARD PERMIAN, LLC

Fields: BLALOCK LAKE,S.(WOLFCAMP)

Cum Oil

72k BBL

Cum Gas

111k MCF

casinghead

Wells

1

Production

1993-03 — 2017-08

Peak Month

1993-05

Production History

Cum Oil: 71,644 BBL Cum Gas: 110,653 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

6,824 BBL/mo

Di (annual)

165.8%

b-factor

0.3

EUR

70,484 BBL

R-squared

0.814

type

hyperbolic

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

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

1993-03 — 1998-03 TREND EXPLORATION COMPANY 61 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
13D	42-173-32301	OXY USA INC.	1	8,500	1993-02-24