Pembina Pipeline Corp. says the Canadian Competition Bureau has signed off on its $4.3-billion deal to buy Kinder Morgan Canada Ltd. and the U.S. portion of the Cochin pipeline system.

The Cochin pipeline runs 2,900 kilometres between Fort Saskatchewan, Alta., and Chicago.

The poll suggests 60 per cent of British Columbians support the controversial expansion, which reflects similar polls conducted in past months.

It would mark the exit of the U.S. pipeline giant from Canada, having closed its sale of the Trans Mountain pipeline to the Canadian government for about $4.5 billion.

Liberal MPs defeated a motion brought by the opposition to study the federal government's handling of the Trans Mountain pipeline matter on Tuesday.

Business groups across B.C. say the court's decision will cost jobs and scare off international investment.

Horgan added that British Columbians who felt the pipeline approval process was flawed have been "vindicated."

Finance Minister Bill Morneau says the federal government is pushing ahead with its purchase of the Trans Mountain pipeline expansion despite a court ruling overturning approval of the project.

The National Energy Board has approved construction on the Trans Mountain pipeline extension between Edmonton, Alta., and Kelowna, B.C.

A dozen people have now been handed jail time for violating the injunction.