Can anyone explain what is going on here?
The Saudis hate Muslim Brotherhood and the Quataris were big sponsors of them when they were relevant.
There's also Iran, which KSA always gets annoyed that its smaller cousins aren't sufficiently angry about (for reference: Qatar has the weird Islamist fetish that is more utopian unify the ummah than Saudis; UAE only care about money and Oman is in a strange halfway house due to geography and the fact it's brand of religion is different from bath sides).
There's also economic bickering about natural gas etc
That is a terrific summary.
