Canadian regulator sets new tolls for TransCanada mainline
March 27, 2013 at 17:03 PM EDT
CALGARY, Alberta, March 27 (Reuters) - Canada's National Energy Board on Thursday agreed to set fixed tolls on TransCanada Corp's mainline, a cross-country natural gas pipeline network facing increasing competition from U.S. shale gas supplies, that the regulator says will help keep the system profitable.
