Tesla CEO Elon Musk has indicated that the Saudi sovereign wealth fund could fund a go-private plan. It's unclear whether what's formally known as the Public Investment Fund has the resources to take Tesla private. But the PIF's goal is to diversify the kingdom's investments away from oil. As the debate over whether Tesla CEO Elon Musk's go-private plan for Tesla rages on, it's worth it to take a closer look at the investor he suggested in his now infamous "funding secured" tweet and subsequent blog post would be his key partner in a delisting.