 Brent and WTI both higher. The gains are being attributed to:1. the closure of the Keystone Pipeline, which ships about 620,000 barrels-per-day of Canadian crude from Alberta to the United StatesSays Reuters:Keystone has remained shut since a 14,000-barrel leak in the U.S. state of Kansas reported on Dec. 7TC Energy has not released a timeline for a restart of the lineand 2. Analysts from Bank of America expect that a successful economic... 