Selling shares of Imperial Oil Limited requires placing a trade order through a licensed brokerage account, financial institution, or online trading platform where your equity shares are currently held. If the shares are registered directly through the company's transfer agent, you must first coordinate with the transfer agent or deposit the certificates into a brokerage account. Once connected to a platform with access to the Toronto Stock Exchange or American public exchanges, you can execute a market or limit sell order to liquidate your position.