ExtractionEngineer - amazing stuff. I'd heard some anecdotes about US refineries adding cokers in
Refining 201: The Assay Essay, but the comments there make it sound as if the refiners are just responding to the new influx of heavy oil on an ad hoc basis - are there other indicators that they've been going in this direction for a while as you suggest?
Incidentally, the author of that article, Robert Rapier, is ex-Conoco Phillips.
I keep wondering when the titans of business will wake up to how serious an issue this is; it's been suggested that the producing nations (and the majors?) may have sincerely believed it would be a simple matter to transition away from oil, but are waking up the reality of the situation. Maybe they're optimists by definition? Or they simply never looked at the big picture. Or just didn't care.