UPDATE 1-TransCanada seeks approval for Energy East pipeline
October 30, 2014 at 13:08 PM EDT
CALGARY, Alberta/SINGAPORE, Oct 30 (Reuters) - TransCanada Corp said on Thursday it has filed for regulatory approval of its C$12 billion ($10.8 billion) Energy East pipeline, the largest, longest and most expensive ever proposed for the country, as it pushes ahead with a plan to ship oil sands crude to eastern refineries and Atlantic export ports.