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EXHIBIT 21
QUAKER STATE CORPORATION
Subsidiaries
All of the following subsidiaries are 100% owned by Quaker State
Corporation unless otherwise indicated:
Jurisdiction of
Name of Subsidiary Incorporation
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Blue Coral, Inc. Delaware
Blue Coral International Ltd. (18) United Kingdom
Fort William Coal Dock Company, Ltd. Ontario
Green Shield, Inc. Delaware
Lubricants, Inc. Arkansas
Myatt-Brooks, Inc. (1) Arkansas
QS/Brooks Distribution Company (2) Tennessee
Medo Industries, Inc. New York
Medo Manufacturing Corporation Maryland
Medo Industries de Mexico, S.A. de C.V. Mexico
QS Holding Company Delaware
Quaker Oil Corporation Texas
Quaker State, Inc. Canada
Quaker State Investment Corporation Delaware
Freedom Freightways, Inc. (3) Missouri
Genesis Petroleum, Inc. (3) Utah
Genesis Petroleum - Salt Lake L.L.C. (17) Utah
Q Lube, Inc. (3) Delaware
Quaker State Minit-Lube Canada, Inc. (4) Ontario
Q Lube Ontario, Inc. (5) Ontario
Lubeco Management, Inc. (4) Delaware
The Valley Camp Coal Company (3) Delaware
Donaldson Mine Company (6) West Virginia
Kelley's Creek and Northwestern Railroad Company (6) West Virginia
Valley Camp Investment Company (6) Delaware
Elm Grove Coal Company (7) West Virginia
Valley Camp Coal Sales Company (7) Ohio
The Helen Mining Company (7) Pennsylvania
Kanawha and Hocking Coal and Coke Company (7) West Virginia
Shrewsbury Coal Company (7) West Virginia
Valley Camp of Utah, Inc. (7) Utah
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Jurisdiction of
Name of Subsidiary Incorporation
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Truck-Lite Co., Inc. (3) New York
T-L Automotive Industries, Inc. (8) Delaware
Truck-Lite International, Inc. (8) Delaware
Valley Camp, Inc. (3) Canada
Quaker State Japan Co., Ltd. Japan
Quaker State Oil Refining Corporation, B.V. Holland
Quaker State - Slick 50, Inc. Delaware
Petrolon UK Ltd. (9) United Kingdom
Sutherwell Ltd. (14) United Kingdom
Petrolon British Isles Ltd. (15) United Kingdom
Petrolon Deutschland GMBH (10) Germany
Petrolon Australia Pty. Ltd. (11) Australia
Petrolon International Management Monaco
SAM (10)
Petrolon International Limited (10) Isle of Man
Petrolon Overseas Ltd. (12) United Kingdom
Petrolon Europe Ltd. (13) Isle of Man
Slick 50 Management, Inc. (10) Delaware
Slick 50 Products Corporation (16) Delaware
Slick 50 Corporation (16) Delaware
Specialty Oil Company, Inc. Delaware
Westland Oil Company, Inc. Louisiana
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(1) 50% owned by Lubricants, Inc. and 50% owned by Specialty Oil Company, Inc.
(2) 50% owned by Myatt-Brooks, Inc.
(3) 100% owned by Quaker State Investment Corporation
(4) 100% owned by Q Lube, Inc.
(5) 50% owned by Quaker State Minit-Lube Canada, Inc.
(6) 100% owned by The Valley Camp Coal Company
(7) 100% owned by Valley Camp Investment Company
(8) 100% owned by Truck-Lite Co., Inc.
(9) 5% owned by Quaker State - Slick 50, Inc.;
95% owned by Petrolon Europe Ltd.
(10) 100% owned by Quaker State - Slick 50, Inc.
(11) 5% owned by Quaker State - Slick 50, Inc.;
95% owned by Petrolon Europe, Ltd.
(12) 100% owned by Petrolon International Ltd.
(13) 90% owned by Petrolon International Ltd.;
10% owned by third party.
(14) 100% owned by Petrolon UK Ltd.
(15) 100% owned by Sutherwell Ltd.
(16) 100% owned by Slick 50 Management, Inc.
(17) 74% owned by Genesis Petroleum, Inc.
(18) 100% owned by Blue Coral, Inc.