The Trudeau government wants another review of the now-nationalized $4.5 billion project.
The proposed Enbridge Line 3 pipeline would carry 760,000 barrels per day from Alberta to Wisconsin.
B.C.’s NDP government is blocking the Trans Mountain pipeline expansion.
Price controls led to long lineups and dry tanks at gas stations.
The federal carbon-price scheme raises Alberta’s carbon tax to $50 per tonne by 2022.
Since 2015, the Alberta government has increased corporate income taxes and implemented a carbon tax.
The $16 billion Energy East and Eastern Mainline pipeline proposal was regulated to death.
Alberta Premier Rachel Notley has called for pipelines to carry Alberta oil to ports in the Atlantic and Pacific.