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Bison consists of approximately 487 km (303 mi.) of 30-inch-diameter natural gas pipeline and related pipeline system facilities that extend northeastward from the Dead Horse Region near Gillette, Wyoming, through southeastern Montana and southwestern North Dakota where it interconnects with Northern Border Pipeline Company’s system near Northern Border’s Compressor Station No. 6 in Morton County, North Dakota.
The Bison pipeline is part of TransCanada's network of 57,000 km (35,500 mi.) of wholly owned and 11,500 km (7,000 mi.) of partially owned natural gas pipelines connecting major supply basins with major markets all across North America. TransCanada is one of the continent's largest providers of gas storage and related services with approximately 380 Bcf of storage capacity - that's the second largest in North America. In total, TransCanada delivers approximately 20 per cent of the natural gas consumed in North America each day.
TransCanada operates Bison and effectively owns 83.3 per cent of the system through its direct ownership interest and its 33.3 per cent interest in TC PipeLines, LP.