This says nothing about Saudi Arabia deliberately ending the deal or wanting to opt-out, as OP's article implies. At best, they're saying the deal reached some natural expiration date. There have been no public comments either way to suggest that the deal has expired, anything out of the ordinary has happened or that it will not be renewed if this is the case.

More importantly, this is an opinion piece on the stock tip section of a website that is notably not a news agency. If this were true, it would represent a massive Geo-political shift and would have been widely reported by now.