"total imports of oil is declining as western Canadian oil is offsetting imports. That oil is coming in by rail."

The NatPost, citing NEB stats, put out a graph showing our oil imports increased considerably in 2015 to 750,000 bpd and were up again in 2016 (759,400).

This increase is almost certainly due to the revival of Line 9: Enbridge said that it would would carry mostly Bakken crude, not Cdn dilbit. I believe that this is still the case.