Long the subject of guesswork and speculation, Saudi Aramco, the state-controlled oil giant that's responsible for roughly 10% of the world's oil production, has for the first time ever opened its book to investors as it prepares to launch a $10 billion bond offering.

And the three years' of financials confirmed what many have long suspected: Aramco's profits beat out tech giants like Apple and publicly-traded rivals in the energy space like Exxon-Mobil and Royal Dutch Shell, establishing the energy behemoth as by far the world's most profitable company. In 2018 alone, Aramco's profits exceeded $110 billion on $360 billion in revenue. That's nearly double Apple's $60 billion profit, and five times Shell's ($23.9 billion). Thanks to the surge in oil prices last year, Aramco's net income climbed by 50% from $75.9 billion in 2017.