MARSHALL #4

Oil · District 09 · Lease #29060

Operator: WASHAUKEE PETROLEUM

Fields: YOUNG COUNTY REGULAR

Cum Oil

1k BBL

Cum Gas

3k MCF

casinghead

Wells

1

Production

1995-10 — 1996-07

Peak Month

1996-05

Production History

Cum Oil: 1,224 BBL Cum Gas: 3,137 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

167 BBL/mo

Di (annual)

116.1%

b-factor

0.0

EUR

1,715 BBL

R-squared

0.322

type

exponential

Operator History (from monthly production reports)

2010-09 — 2014-09 MCCRACKEN, EUGENE 49 mo

2010-01 — 2010-08 MULLINS, MANUEL 8 mo

2004-05 — 2009-12 SKY RESOURCES, INC. 68 mo

2003-10 — 2004-04 DEMOSS, L. V. 7 mo

1999-02 — 2003-09 DYNA ENERGY INVEST. 56 mo

1998-01 — 1999-01 WASHAUKEE PETROLEUM 13 mo

1997-02 — 1997-12 N R G RESERVES CONSOLIDATED INC. 11 mo

1995-10 — 1997-01 DARTEX ENERGY INC 16 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
4	42-503-40640	MCCRACKEN EUGENE	1	2,600	1995-02-21