First of all, let's put this into context.
Yes, over the last number of years we've seen a significant rationalization in the number of refineries in Canada. Notwithstanding, we've actually seen an increase in refinery capacity. As we've reduced the number of refineries, remaining refineries have expanded significantly. Today we produce more refined petroleum products than we did many years ago, and with fewer refineries. That has been done as refineries have striven to achieve greater levels of efficiency, to respond to productivity, and to achieve economies of scale. This helps Canadian consumers by keeping product prices down, because the production costs are lower.
As to a government role, given the high capital costs associated with building a new refinery—several billions of dollars—the role of government is really to create economic conditions conducive to investment in that kind of capacity. This adds value to Canadian natural resources. It's the investment climate that makes Canada attractive to billion-dollar investments that have extremely long amortization and pay-back periods.