Saudi Arabia is leaning toward listing its giant, state-run oil company Saudi Aramco in New York. Officials expect the deal to be valued at about $2 trillion. If that were the case, it would make it the world's most valuable publicly traded company. 

Saudi Aramco has named three major banks to its international advisory team as it prepares for what could be the biggest initial public offering in history, according to a Reuters report, with JPMorgan (JPM - Get Report) , Morgan Stanley (MS - Get Report)  and HSBC (HSBC)  surviving the final cut.

The world's largest oil company is also considering listing its stock in either London or Toronto.