RE: price of WCS NWAHSRM....I googled " Price of WCS crude for 2017". I then clicked on " Statista Portal average monthly WCS crude oil price from November 2016 to November 2017 in USD. April indicated this price was $41.37, November showed the price to be $41.56. I used these statistics in my blog. I did not intend to mislead anyone, nor do I know how accurate they may be. These prices were average and they may be based on futures. Having said that, it does show the huge increase in the discount between WCS and WTI from April to December of last year!