BP, Exxon talking weak refining margins..Various newfeeds talking about BP taking a $2 bill impairment charge on one of its Europeon refineries owing to WEAK refining margins, now EXXON is also warning about lower than expected earnings due again to weker refinery margins....is this just a europeon concern (my opinion, doubtful) so what does this mean for CVE??? I am so getting tired of these downstream manufacturing poor performance stories and will this be a another drag on earnings for CVE??? thoughts?? dwdc