With Saudi Arabia considering a floatation of the world’s biggest energy group, here is the key information that you need to know
• Saudi Aramco is likely to be worth well over $1tn (£685bn). At that level it would be worth more than Apple, ExxonMobil and Facebook added together.
• The world’s largest oil and gas company was originally formed in 1933, with the involvement of Standard Oil of California – now known as Chevron.