to buy in to the initial public offering of its state oil company, as part of a plan to achieve the $2tn valuation coveted by Crown Prince Mohammed bin Salman. Four people familiar with the talks said the aim was to “strong arm”, “coerce” or “bully” some of the kingdom’s wealthiest families to become cornerstone investors to build confidence in the Saudi Aramco IPO, which has been billed as the world’s biggest ever. Last week’s attacks on Saudi Arabia’s oil infrastructure have also unsettled investors.