Ameri-Forge Corporation

Allied Signal

Alstom (Schmidt'sche)

Aristech Chemical Corporation

B&B Electromatic

Babcock

BASF Corporation

Bilco Tools

BOC Gases

BP Amoco Chemical

BP Amoco Refinery

Calciner Industries, Inc.

Cargill, Inc.

Chemical Waste Mgmt.

Chemtura Corporation

Chevron Chemical

Chevron/Phillips Chemical

Ciba-Geigy

Cit-Con Oil Corporation

Citgo Petroleum

Citgo Refinery

Coastal Refining

Coffeeville Resources Nitrogen Fertilizers

Coffer Corporation

Conoco Incorporated

Condea Vista

Conoco-Phillips Company

Copolymer

Crall Products, Inc.

Crown Vintage

Dakota Gasificiation

Dolphin Energy

Dynegy Power

Dow Chemical 

Dupont

Ecodyne MRM

Engineering Designs Transfer, Inc.

Eni Chem Americans, Inc.

Entergy

Equistar

Excel Para Lubes

Exxon Chemical

Exxon Mobil

Fonco Engineering

GB Bioscienes

GE Aero Power Systems

Geo Heat Exchangers

Georgia Gulf

Georgia Pacific

Global Octanes

Global Sante Fe

Houston Refining Lp

Huntsman Corporation

Hydrochem, Inc.

Hydro Machinery

Imc-Agrigo Company

International Piping Sys.

Invista

Jacobs Engineering

James River Corporation

Kaldair, Inc.

Kaiser Aluminum And Chemical

Kerr Mcgee

Kimberly-Clark

Lafayette Utilities

Laroche Chemicals

Louisiana Generating, LLC

Lucite International, Inc.

Lyondell Petrochemical

Marathon LLC

Master Foods

Melamine Chemicals, Inc.

Merichem Chemicals & Refinery

Metal Works Corp.

Millennium Chemicals

Mississippi Chemical Nitrogen LLC

Mobil Oil Corporation

Monsanto Company

Motiva Enterprises LLC

Nalco Chemical Company

Natureworks LLC

Nelson Industrial Steam Company

O&M Manufacturing

Occidental Chemical

Ohmstede Heat Exchangers

Onyx Environmental Services

Orion Refining

Oteco Incorporated

P.T. Smelting

Petrex, Inc.

PPG Industries

Placid Refining

Pellerin Milnor

Reflange, Inc.

Reliant Energy Coolwater, Inc.

Resource Rig Supply, Inc.

Rohm & Haas Company

Rubicon, Inc.

Sasol Synfuels (PTY)

Selas Fluid Processing

SG Solutions

Shell Chemical Company

Shell Offshore, Inc.

Sierra Pacific

Solvey Polymers

S.S.&S. Fabricators

Stp Nuclear Operating Company

Stone & Webster

Stowe Power

Taper-Lok Corporation

Technip USA Corporation

Temple Innland

Tenaska Gateway Partners

Terra Industries

Texaco Development Corp

Texas Eastman

Thermon Manufacturing

Titan Petrochemicals

Total Petrochemicals

Triad Chemical Company

Turner Industries

TXU Electric

Uniroyal Chemical

Vogt-Nem

Vulcan Chemicals

Weeks Marine Incorporated

Westlake Petrochemical

Westvaco

Weyerhaeuser Company

Williams Olefins