POWELL "16A"

Oil · District 08 · Lease #33684

Operator: VANGUARD PERMIAN, LLC

Fields: BLALOCK LAKE,S.(WOLFCAMP)

Cum Oil

778k BBL

Cum Gas

556k MCF

casinghead

Wells

1

Production

1993-02 — 2019-10

Peak Month

1993-05

Production History

Cum Oil: 777,518 BBL Cum Gas: 556,355 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

14,633 BBL/mo

Di (annual)

27.5%

b-factor

0.0

EUR

637,682 BBL

R-squared

0.864

type

exponential

Operator History (from monthly production reports)

2017-07 — 2026-07 OXY USA INC. 109 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

1993-02 — 1998-03 TREND EXPLORATION COMPANY 62 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
33D	42-173-32281	OXY USA INC.	2	8,400	1992-12-23