System Design & Commercial Operations is responsible for managing all day-to-day transactions (contract administration, nominations, allocations, invoicing) with our customers and interconnecting pipelines and maintaining a seven day/week customer call centre.
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
System Design & Commercial Operations is a vital part of the Canadian Natural Gas Pipelines arm of TransCanada.
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
 
                    Phone: 1.403.920.2000 
                    Toll-free: 1.800.661.3805
                
                   Canada: 1.888.982.7222 
                    United States: 1.800.447.8066 
                   Portland Natural Gas Transmission System(PNGTS): 1.800.830.9865 
                    Columbia Gas Transmission, Crossroads Pipeline, 
Hardy Storage Company & Millennium Pipeline: 1.800.835.7191 
                   Columbia Gulf Transmission: 1.866.485.3427 
                    Columbia Midstream: 1.855.511.4942 
                   Mexico: 01.800.111.3333 
                   
                
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