The second phase is a 480km extension from Steele City, Nebraska to Cushing, Oklahoma and an increase in Keystone’s nominal capacity to 591,000 barrels per day (bbl/d), of which 530,000bbl/d is contracted.

TransCanada president and CEO Russ Girling said that the Keystone pipeline will link a secure and growing supply of Canadian crude oil with America’s largest refining markets and greatly improve North American energy security.

The next phase of expansion for the Keystone Pipeline system is the proposed US Gulf Coast Expansion (Keystone XL) project.

The Keystone XL project is a 2,673km, 36-inch crude oil pipeline that will begin at Hardisty, Alberta and extend southeast through Saskatchewan, Montana, South Dakota and Nebraska, and then continue on through Oklahoma and Texas to delivery terminals near Port Arthur, Texas, to serve US Gulf Coast refineries.