Saudi Arabia’s state oil company is revving up plans for an initial public offering and accelerating the timeline for what would be the world’s biggest listing to as soon as early next year, according to people familiar with the discussions.

The IPO of state-owned Saudi Arabian Oil Co, known as Saudi Aramco, is being sped up as government officials hope to capitalize on the positive international reaction to the company’s debut bond sale in April, which raised $12bn, people close to the talks said.