SPRAGUE "B"

Oil · District 08 · Lease #23667

Operator: UHC PETROLEUM CORPORATION

Fields: HOWARD GLASSCOCK

Cum Oil

5k BBL

Cum Gas

29 MCF

casinghead

Wells

4

Production

1993-01 — 2003-03

Peak Month

1998-05

Production History

Cum Oil: 5,109 BBL Cum Gas: 29 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

190 BBL/mo

Di (annual)

71.5%

b-factor

0.1

EUR

3,504 BBL

R-squared

0.738

type

hyperbolic

Operator History (from monthly production reports)

2011-12 — 2012-03 5H OIL CO., LLC 4 mo

2007-03 — 2011-11 PREMIER NATURAL RESOURCES, LLC 57 mo

2006-08 — 2007-02 PREMIER NATURAL RESOURCES, L.P. 7 mo

2006-04 — 2006-07 IPT OIL COMPANY 4 mo

2005-01 — 2006-03 UHC PETROLEUM CORPORATION 15 mo

2004-03 — 2004-12 IPT OIL COMPANY 10 mo

1999-12 — 2004-02 HILLSIDE OIL & GAS LLC 51 mo

1999-10 — 1999-11 HILLSIDE OIL & GAS, INC. 2 mo

1997-11 — 1999-09 FIRST RESERVE OIL & GAS CO 23 mo

1997-01 — 1997-10 PHARAOH OIL & GAS, INC. 10 mo

1995-12 — 1996-12 TEJONES OPERATING CORPORATION 13 mo

1995-09 — 1995-11 GOUGER OIL CO. 3 mo

1993-05 — 1995-08 MAS OPERATING CO. 28 mo

1993-01 — 1993-04 CAPPS, RANDALL 4 mo

Wells (4)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
2	42-227-30790	5H OIL CO. LLC	1	2,705	1985-05-22
2W	42-227-30790	5H OIL CO. LLC	1	2,705	1985-05-22
1	42-227-30789	5H OIL CO. LLC	--	--	--
3	42-173-30315	5H OIL CO. LLC	--	--	--