One of three lines on the Trunk­line system, which is currently owned by Energy Transfer, will be converted to carry crude southbound from the Patoka, Illinois hub to refineries on the eastern Gulf Coast.

The pipeline could provide capacity for between 420,000 and 660,000 barrels per day to the St James hub in Louisiana by 2015.

Pipeline supply would be a combination of heavy crude from northern Canada’s oil sands region and light oil from the US Bakken play.

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