American Petroleum Institute
ATOFINA Petrochemicals
TOTAL Petrochemicals
CAM Coal
Celanese
Chevron
ConocoPhillips
Covanta Energy
EDI
Southern Union Gas Services
IESI
Kinder Morgan
Phillips ECG
Total Fina Elf
US Ecology of Texas
Tetra Tech
Strategic Engineering & Science
XTO Energy
Lloyds of London
National Union Fire Insurance
ConocoPhillips Alaska
C & C Groundwater
Browning-Ferris Industries of North America
American Ref-Fuel
Republic Services
Louis Dreyfus Natural Gas
Fulbright and Jaworski L.L.P.
Woodward, Hall & Primm, P.C.
U.S. Environmental Protection Agency
Mine Reclamation Corporation
TNT Bestway
CECOS International
SWIRE Hong Kong
Mullin Hoard, L.L.P.
Maxus Energy
Dominion
Foley and Hoag, L.L.P.
Bingham and Dana, L.L.P.
Atofina Petrochemical, Inc.
Republic Services of Southern Nevada
Ohio County Landfill-Kentucky
Valley View Landfill-Kentucky
Marathon Oil
