With interests in approximately 5,900 miles of FERC regulated, interstate natural gas pipelines and a combined total deliverable capacity of 9.1 billion cubic feet per day (bcf/d), our assets are essential infrastructure that supply approximately eight per cent of the United States daily gas volumes and are well interconnected to the key markets they serve.

TC PipeLines, LP owns or has ownership interests in the following assets:




Bison 303 miles 100 percent
North Baja 86 miles 100 percent
Tuscarora 305 miles 100 percent
GTN 1,377 miles 100 percent
Northern Border 1,412 miles 50 percent
Great Lakes 2,115 miles 46.45 percent
PNGTS  295 miles  49.9 percent 

Click to view a large version of the TC PipeLines, LP Asset Map (PDF, 719 KB)