Aramco is worth, officials say, “trillions of dollars”, making it easily the world’s biggest company. It says it has hydrocarbon reserves of 261 billion barrels, more than ten times those of ExxonMobil, the largest private oil firm, which is worth $323 billion. It pumps more oil than the whole of America, about 10.2m barrels a day (b/d), giving it unparalleled sway over prices. If just a sliver of its shares were placed on the Saudi stock exchange, which currently has a total market value of about $400 billion, they could greatly increase its size.
That is from The Economist. The talk is of starting with the sale of a 5% share, but that is still an enormous offering.