I mean that's kind of my point. I don't really understand what the point of calling US and Saudi allies is when this clearly only extends to the Iran issue in which Saudi is only too happy to freeload on US commitments to the region/Israel as it matches their goals. Its also my more general point, US doesn't really have a lot of allies in the sense "I help you out you help me out", most of these so-called "allies" are interested in freeloading on US's back as much as possible whilst trying to get as much from Russia/China elsewhere as possible.

>Oil price decreases are always a no go for Saudi

Factually false, remember 2015? Saudis tried to kill US shale pretty aggressively.