Ripples Spreading From Enron's Expected Bankruptcy
Enron seeks protection from some of its creditors in Europe; lets traders dissolve positions through its online unit; desperately seeks ways to restructure, most likely in bankruptcy filing within days; jockeying begins for Enron properties abroad, while financial companies, trading partners and governments rush to calculate how much Enron owes them and their likely losses; tensions mount between Enron and Dynegy, which withdrew its takeover offer; Moody's Investors Service weighs downgrading Dynegy's credit because of dispute; Rep Billy Tauzin and Sen Jeff Bingaman set probes; tables of Enron assets and of companies facing big losses because of collapse (M)