The discount on Western Canada Select (WCS) heavy crude versus the North American benchmark West Texas Intermediate (WTI) tightened on Friday:
* WCS for November delivery in Hardisty, Alberta, settled at $12.20 a barrel below WTI, according to brokerage CalRock, having settled at $12.75 a barrel under the benchmark on Thursday.
* Oil futures rose on Friday and settled with their biggest weekly gains in over a year on the mounting threat of a region-wide war in the Middle East.
(Reporting by Georgina McCartney in Houston; Editing by Shailesh Kuber)