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EXHIBIT 21
QUAKER STATE CORPORATION
Subsidiaries
All of the following entities are 100% owned by Quaker State
Corporation unless otherwise indicated:
Name of Entity Jurisdiction
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Fort William Coal Dock Company, Ltd. Ontario
Green Shield, Inc. Delaware
Lube Acquisition Corporation Delaware
Lubricants, Inc. Arkansas
Medo Industries de Mexico, S.A. de C.V. Mexico
Medo Industries Canada Ltd. Canada
QSB Corporation BVBA Belgium
Rain-X Europe, NV (1) Belgium
QSHK Corporation Delaware
QS Holding Company Delaware
Quaker Oil Corporation Texas
Quaker State, Inc. Canada
Quaker State Investment Corporation Delaware
Petro-Lon Canada Company (2) Nova Scotia
Blue Coral, Inc. (2) Delaware
Blue Coral-Slick 50, Inc. (3) Delaware
Car + S.A. (4) France
Petrolon UK Ltd. (5) United Kingdom
Sutherwell Ltd.(6) United Kingdom
Petrolon British Isles Ltd. (7) United Kingdom
Petrolon Australia Pty. Ltd. (8) Australia
Petrolon International Limited (3) Isle of Man
Petrolon Overseas Ltd. (9) United Kingdom
Petrolon Europe Ltd. (10) Isle of Man
Quaker State International Ltd. (3) United Kingdom
Blue Coral Systems, Inc. (2) Delaware
Freedom Freightways, Inc. (2) Missouri
Genesis Petroleum, Inc. (2) Utah
Medo Industries, Inc. (2) New York
Q Lube, Inc. (2) Delaware
Q Lube Canada, Inc. (11) Ontario
Q Lube Ontario, Inc. (12) Ontario
Automotive Lube Shops Ltd. (13) Canada
Lubeco Management, Inc. (11) Delaware
The Valley Camp Coal Company (2) Delaware
Valley Camp Investment Company (14) Delaware
Donaldson Mine Company (15) West Virginia
Kelley's Creek and Northwestern Railroad Company (15) West Virginia
Elm Grove Coal Company (15) West Virginia
The Helen Mining Company (15) Pennsylvania
Kanawha and Hocking Coal and Coke Company (15) West Virginia
Shrewsbury Coal Company (15) West Virginia
Valley Camp of Utah, Inc. (15) Utah
Valley Camp, Inc. (2) Canada
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Quaker State Japan Co., Ltd. Japan
Rain-X Corporation Arizona
Rain-X Europe, NV (1) Belgium
Specialty Oil Company, Inc. Delaware
Specialty Environmental Services of Texas, Inc. (16) Texas
Westland Oil Company, Inc. Louisiana
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(1) 33% owned by QSB Corporation BVBA
67% owned by Rain-X Europe, NV
(2) 100% owned by Quaker State Investment Corporation
(3) 100% owned by Blue Coral, Inc.
(4) 89.65% owned by Blue Coral, Inc.
10.35% owned by third parties
(5) 5% owned by Blue Coral, Inc.
95% owned by Petrolon Europe Ltd.
(6) 100% owned by Petrolon UK Ltd.
(7) 100% owned by Sutherwell Ltd.
(8) 5% owned by Blue Coral, Inc.
95% owned by Petrolon Europe, Ltd.
(9) 100% owned by Petrolon International Ltd.
(10) 90% owned by Petrolon International Ltd.;
10% owned by third party.
(11) 100% owned by Q Lube, Inc.
(12) 50% owned by Q Lube Canada, Inc.
(13) 50% owned by Q Lube Ontario, Inc.
50% owned by third party
(14) 100% owned by The Valley Camp Coal Company
(15) 100% owned by Valley Camp Investment Company
(16) 50% owned by Specialty Oil Company, Inc.
50% owned by third party