Nothing needs to work with Russia, it is an excuse. Russia's oil output as % of global production hasn't really changed for decades. It's is all about US frackers, peak oil demand, and a prince's concern about his personal future.
Even then, it failed before because fracking companies could shut down and start back up without too much loss of capital. To me this reeks od trying the same thing again and expecting a different result.
MBS seems to behave quite randomly. Maybe that's logical: being predictable is dangerous. But that's the only explanation that fits here I think: he'll burn 1tn usd because no one would expect that!
Has anyone got a better logic to explain this? Does it suit Saudi to weaken other OPEC members?