Keystone XL is the “single-best” pipeline for Canada and if approved would be positive for Alberta oil producers, according to the former CEO of TransCanada and Talisman.

“I think it should get approved and it remains the single-best option,” Hal Kvisle told BNN in an interview.

President-elect Donald Trump has said he would approve Keystone XL if the U.S. were to get a better deal out of it. The pipeline project was denied by President Barack Obama in November 2015, but TransCanada has since taken legal action under NAFTA against the U.S. administration and the project continues to be a matter of debate.

Most recently, Ottawa gave the green light to Enbridge’s Line 3 and the expansion of Kinder Morgan’s Trans Mountain pipeline last week, which sparked backlash from some First Nations communities in British Columbia. Kvisle said he supports the expansion of Trans Mountain, but argues that Keystone XL still remains the most “attractive” pipeline for the country.

“I think the best deal that the public can get from any pipeline project is safety, efficiency and economically-competitive cost of transportation,” Kvisle said. “And if we can move with Keystone a barrel of oil from Alberta to the big refining centre in Houston at a lower cost than any other way of getting it there, then both the producer in Alberta and the refiner in Houston will benefit from that low-cost model.”

The pipeline, if approved under its original proposal, would see to 830,000 barrels of crude oil per day transported from Hardisty, Alta. to Steele City, Neb.

“The fact remains – the highest value market we can move our heavy crude oil to is Houston,” Kvisle added. “There is no refining centre in the world that is better – that has more of the right equipment – to process that kind of crude oil than that enormous refining centre in Houston.”

“If President-elect Trump decides to approve it, I think it’d be a good day for Alberta producers,” Kvisle said.