Superior Plus Income Fund
Superior Gas Liquids
Superior PetroFuels
ERCO Worldwide
Winroc
Superior Energy Management
Association Quebecoise de Propane (French only)
Canada Safety Council
Canadian Oil Heat Association
Environment Canada - Weather Office
LPG Emergency Response Corp
National Propane Gas Association (U.S.)
Ontario Propane Association
Propane Education and Research Council (U.S.)
Propane Gas Association of Canada
Technical Standards & Safety Authority
