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Line 9 Reversal (Eastern Canadian Refinery Access Initiative)

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The Line 9 reversal is the centerpiece of Enbridge’s Eastern Canadian Refinery Access Initiative – a development that will protect the future of Canadian refineries, safeguard jobs, and benefit Canada’s economy as a whole.

Line 9 is an existing 762-mm (30-inch) diameter pipeline with a current capacity of approximately 240,000 barrels per day, extending from Sarnia, Ont., to Montreal. Enbridge has been operating the Line 9 pipeline safely and reliably since 1976.

Originally flowing eastward, Line 9 was reversed in 1998 as foreign oil from areas such as West Africa and the Middle East became more affordable. Currently, Line 9 transports that foreign-sourced crude in a westbound direction (Ontario and Quebec refineries currently process 18% and 90% foreign-sourced crude, respectively).

However, Western Canadian crude is now priced significantly lower than foreign oil. And as a result, Enbridge made a successful regulatory application to the National Energy Board (NEB) over the past two years to reverse the flow of Line 9 once again.

By ensuring a steady, secure, reliable, and more economical supply of Western Canadian crude – which can be sourced from various locations in Alberta, Saskatchewan, Manitoba, and the Bakken – Enbridge’s Eastern Canadian Refinery Access Initiative will potentially level the playing field for Canadian refineries, protecting their long-term viability and safeguarding jobs. In the bigger picture, the reversal of Line 9 is critical to the security of energy supply in Canada.

Line 9A and 9B Reversal Applications

Enbridge devised a two-step process for the proposed reversal of Line 9. The standalone application for the reversal of the section known as Line 9A, from Sarnia, Ont., to North Westover, Ont., was approved by the NEB in July 2012. Project work was completed in November 2013, and that section of Line 9 is now flowing in a reversed direction.

Enbridge filed a project application with the NEB for the 639-kilometre section known as Line 9B, running from North Westover, Ont., to Montreal, in November 2012, proposing at the same time to expand the capacity of Line 9 from 240,000 bpd to 300,000 bpd. The NEB approved the Line 9B Reversal and Line 9 Capacity Expansion Project on March 6, 2014.

Pipeline Safety

Over the past decade, Enbridge has transported nearly 12 billion barrels of crude oil with a safe delivery record that’s better than 99.999 per cent. We also know that’s not good enough, because our goal – simply, unequivocally – will always be zero incidents.

At Enbridge, we back up our safety priorities by investing heavily in the tools, technologies, and strategies to ensure our energy transportation and distribution systems operate safely, reliably, and in an environmentally responsible manner. In 2012 and 2013 we invested a total of $4.4 billion in programs and initiatives to maintain and further enhance our pipelines and facilities in all parts of our business.

Click here for a more thorough description of our dedication to pipeline safety, including the areas of monitoring, prevention, and emergency response.

Answering Your Questions

We continue to engage the public in meaningful discussions regarding the Line 9 reversal and capacity expansion. We speak frequently with landowners, municipalities, interested individuals and organizations to provide information and answer questions.

Line 9 Products

Line 9 will carry mainly light crude oil. However, shippers will be permitted to ship crude oil blends or types that meet quality specifications set by Enbridge, and filed with the National Energy Board. This includes heavy crudes such as diluted bitumen – which has been studied by numerous scientific bodies, including the highly respected and influential National Academy of Sciences, and found to be non-corrosive and safe for pipelines.

At Enbridge, we’ve been transporting crude oil produced from Canada’s oil sands region since 1968. There is nothing new about transporting this form of crude oil – and after nearly half a century, there is no evidence that internal corrosion is caused by transporting oil from the Canadian oil sands. In fact, Enbridge has never experienced an internal corrosion failure on its mainline pipeline system.

Minimizing the Impact

The Line 9 reversal and capacity expansion will use the existing pipeline. No new pipe will be added. Except for some temporary workspace, all work will take place within existing Enbridge properties and rights-of-way.

As part of our successful proposal to expand the capacity of Line 9 from 240,000 bpd to 300,000 bpd, Drag Reducing Agent (DRA), a tested and safe polymer compound found in wool, nylon, and silicone, will be injected into the crude oil along Line 9, allowing oil to flow with less friction. Use of this technology allows for increased capacity with minimal requirement for new infrastructure – which ultimately minimizes the impact to the environment and stakeholders.

Project work will be performed at Sarnia Terminal, North Westover Station, Westover Terminal, Hilton Station, Cardinal Station, Terrebonne Station, and Montreal Terminal. Modification or replacement of existing equipment (including small pumps injecting DRA into the oil flow) and the installation of piping will take place within facility boundaries.


Enbridge Companies


Enbridge Gas Distribution

Canada's largest gas distribution company. Serving 1.9 million customers in Ontario, Quebec and New York State.

Enbridge Gas New Brunswick

Enbridge Gas New Brunswick

Distributing natural gas to institutional, commercial, industrial and residential customers across nine New Brunswick communities.

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Enbridge Inc.

Enbridge Inc. (ENB) is a publicly-traded corporation on the New York and Toronto stock exchanges.

Enbridge U.S.

Enbridge's U.S. operations - a leader in energy transportation in the Midwest, Mid-Continent and Gulf Coast regions of the United States.

Enbridge Energy Partners

A U.S. master limited partnership with oil and gas delivery assets.

Enbridge Income Fund Holdings

Enbridge Income Fund Holdings

Enbridge Income Fund Holdings Inc. (EIFH) is a publicly-traded Canadian Corporation that invests in low-risk energy infrastructure assets.

Enbridge Technology

Provides pipeline and natural gas distribution consulting and training services internationally.

Midcoast Energy Partners

Midcoast Energy Partners

Midcoast Energy Partners (MEP) serves as EEP’s primary vehicle for owning and growing its natural gas and natural gas liquids (NGL) midstream business in the U.S.


Emergency Contacts

Pipeline Emergencies


Enbridge Pipelines Inc. (incl. Norman Wells Pipeline)
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1 (888) 838-4545

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