Agence France-Presse: Imperial Oil, the Canadian subsidiary of US oil giant ExxonMobil, said Monday it is going ahead with a 7.1-billion-US-dollar first phase of its Alberta oil sands mining project. The company’s Kearl oil sands project — a surface mining operation northeast of Fort McMurray, Alberta — is to be developed in three phases and could ultimately produce more than 300,000 barrels of bitumen per day. The first phase of the project would produce an average of 110,000 barrels per day …