The pressure is on President Barack Obama to approve the Keystone XL pipeline.
On Friday the State Department issued an 11-volume report, downplaying the impact it would have on climate change.
The report says the pipeline would not slow or accelerate the development of reserves that environmentalists say would greatly impact global warming.
Canadian Minister of National Resources, Joe Oliver:
(SOUNDBITE) (English) JOE OLIVER, CANADIAN MINISTER OF NATIONAL RESOURCES, SAYING:
"We welcome the U.S. State Department's report and are encouraged that it concludes that Keystone XL would not have a significant environmental impact. The Keystone XL project is expected to support 42,000 jobs and billions of dollars in economic activity in both Canada and the United States and revenues to government to contribute to social programs, like healthcare, education and housing."
The project involves building a $5.4 billion oil pipeline from Alberta, Canada, to Steel