Expanded Trans Mountain Upends North American Oil Flows and Pipeline Tolls

The Trans Mountain Expansion Project, now finally completed after years of delays, is expanding access to markets for Canadian oil producers and is set to boost the price of Canada’s heavy crude oil for years to come, top executives at the major energy firms say.

The expanded pipeline is tripling the capacity of the original pipeline to 890,000 barrels per day (bpd) from 300,000 bpd to carry crude from Alberta’s oil sands to British Columbia on the Pacific Coast.

The expanded pipeline provides increased transportation capacity for Canadian producers to get their oil out of Alberta and into the Pacific Coast and then to the U.S. West Coast or Asian markets.

TMX has reserved 20% of its capacity – or 178,000 bpd – to uncommitted customers, or spot shippers.

As a result of the increased competition from Trans Mountain, other pipeline operators – including Enbridge, operator of North America's largest crude oil pipeline network, Mainline – are cutting rates to transport crude on their network in September. Enbridge will ask lower tolls from companies to ship heavy crude from Hardisty, Alberta, to Texas on Enbridge’s networks, per company filings cited by Bloomberg.

As a result of TMX entering into service, crude trade flows are expected to shift, Wood Mackenzie’s analysts Lee Williams and Dylan White wrote in July.

“Wood Mackenzie data suggests that increased westbound flows will moderately cut into volumes moving on other routes out of Western Canada, especially crude-by-rail and Enbridge’s Mainline system,” they said.

Since Canadian producers continue to ramp up production, the excess pipeline capacity on the networks carrying crude from Canada to the demand centers in the U.S. should be filled fairly soon, according to analysts.

By Tsvetana Paraskova for Oilprice.com

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