ABB
Aerojet General
Air Products & Chemicals
Akzo Nobel Chemicals Inc
Allara Instrument Hire Pty Ltd (Australia)
Amgen Puerto Rico
ASARCO LLC
Atlantic Drilling Supply
Avery Dennison
BASF Corp
Bayer Corporation
Bayer Crop Science
Bellray Industries
Bethlehem Steel Corp
Boeing
Chevron Chemical Co
Chevron Phillips Chemical Co
Daishowa America Co
Daishowa-Marubeni International Ltd
Dallas-Fort Worth International Airport
DMI Peace River Pulp
Doxor - Brasil
Dow Chemical Co
Dragon Products Co
DuPont Chemical Co
Eagle Picher Industries
Eastman Chemical Co
Elf Atochem
El Paso Field Services
Envirosupply & Service Inc.
EON Products
Florida East Coast Railway
Front Street Industrial Park
Gemini Industries Inc
General Electric
General Dynamics
GeoInsight
Geotech Environmental Equipment
Georgia Pacific Corp
H & N Chemical
Honda of America
Honeywell Inc
Hoover Co
IBM
IE DuPont de Nemours & Co
In-Situ Inc
International Paper
IPR Pharmaceuticals Inc
Jefferson Smurfit Corp
JR Simplot Co
Karta Technologies Inc
Kerr McGee Chemical Co
Kohler Co
Lake Superior Paper Industries
Land O' Lakes
Lone Star Steel

Maple Leaf Farms
Mead Fine Paper Co
Mead Publishing Paper Co
Meade Westvaco
Merck & Co
Molycorp Inc
Naya Inc
NESCO
Novartis Corp
Nucor Steel
Olin Corp
Olympus
O.M. Scott and Sons Co
Oxford Farms
Pall Life Sciences Inc
Petro Chem Environmental Systems
Premark International
QED Environmental
RCS Corp
Repsol YPF (Argentina)
Rohm & Haas Co
Rohm and Haas Texas Inc
SDIX
SEH America
Shippers Car Line
Solinst Canada Ltd
Southern Company
Sparton Technology Inc
SWECO Viah AB (Sweden)
Tektronix
Texas Instruments
Thermo Fisher Niton Analyzers
Union Camp Corp
Union Carbide/Dow Chemical
Unisys Corp
U.S. Air Inc
U.S. Steel
Van Walt Ltd (England)
Western Co-Operative Fertilizers Ltd
Weyerhaeuser Co
Weyerhaeuser Saskatchewan Ltd
Whirlpool Corp
Woods Hole Group Inc.
YSI Hong Kong Ltd
YSI Inc
Yemkoby International

Alyeska Pipeline Services Co
Agrium KPO
Air Products & Chemicals
Akzo Nobel Chemicals Inc
Amoco Petroleum Co
Anadarko Petroleum Corporation
Ashland Petroleum Co
BDM Petroleum Technologies
BP America Production
BP Amoco
British Petroleum Corp
Burlington Resources Oil & Gas
Chesapeake Energy
Chevron Chemical Co
Chevron ETC
Chevron Phillips Chemical Co
Chevron Products Company
Chevron Research & Technology Co
Citgo Petroleum Co
Clark Refining Co
Coastal Petroleum Co
Coffeeville Resources Refining & Marketing Co
Continental Resources Inc.
Cumberland Farms Inc
Conoco Phillips
D & H Petroleum & Environmental
Dow Chemical Co
DuPont Chemical Co
El Paso Energy Co
Elf Atochem
Enbridge
Encana Oil & Gas LLC (USA)
Equilon Enterprises LLC
Exxon Company USA
ExxonMobil Corp
ExxonMobil de Colombia SA

Flint Hills Resources Alaska
H & N Chemical
Houston Pipeline Co
Hovensa LLC (Virgin Islands)
IE DuPont de Nemours & Co
Imperial Oil Ltd (Canada)
Imperial Oil Resources
Kerr-McGee Chemcial Co
Kinder Morgan
Marathon Ashland Pipeline Co
Mobil Oil Co
Natural Gas Pipeline Co
Nexen Inc (Canada)
Olin Corp
Oxford Farms
Peoples Gas System Inc
Petro Chem Environmental Systems
Phillips 66
Phillips Petroleum Co
Plantation Pipeline Co
Red Willow Production Company
Rice Operating Co
Shell Development Co
Shell Global Solutions
Shell Martinez Refining Co
Shell Oil Products Co
Southern Petroleum Labs
Sunoco
Taminco
Tesoro Hawaii Corp
Texaco
Ultramar Diamond Shamrock Corp
Union Carbide
Valero Energy Corp
Williams Gas Pipelines - Transco
XTO Energy