Imperial Oil begins to accept proposals for Esso stations-sources
May 15, 2015 at 16:01 PM EDT
TORONTO/CALGARY, May 15 (Reuters) - Imperial Oil, Canada's No. 2 integrated oil producer and refiner, is moving forward on plans to sell some 500 of its remaining company-owned Esso retail sites and has begun to accept proposals from interested bidders, according to four sources familiar with the process.