He said Enbridge Inc.'s Alberta Clipper system runs 1,000 miles from Hardesty, Alta., to Superior, Wis., complementing the company's recently completed Southern Access Project. The systems will have an initial 450,000 b/d of capacity, capable of reaching 800,000 b/d, in addition to Enbridge's existing 2 million b/d systems. TransCanada Pipelines Ltd.'s Keystone and Keystone XL systems' capacity has climbed from 590,000 to 1 million b/d, moving Alberta oil from Hardesty to the US Gulf Coast, he added. The Canadian-US energy relationship has grown beyond oil and gas, observed David L. Goldwyn, international energy security coordinator at the US State Department. "We collaborate in many areas, including renewable energy," he said. "The future mix of products flowing back and forth between our two countries 10 years from now will be very different from today. But we still will need to rely on oil and gas."