The Marketlink project will feed crude oil into the Keystone XL project, which will deliver 510,000bpd to the Gulf Coast.

The proposed Keystone XL route through Cushing, Oklahoma positions TransCanada to provide cost-effective pipeline capacity from the region to the US Gulf Coast.

TransCanada said the project is expected to be in service in the first quarter of 2013, once it completes its XL line.

Keystone XL will reduce America’s dependence on crude oil from Venezuela and the Middle East by up to 40% while the expansion will also create 20,000 jobs for American workers and inject $20m into the US economy.