Oil crashing is literally a godsent for the warmongers with others.
>Venezuela
Got their massive oil reserves which they sell annually to be able to afford pensions, healthcare, social benefits, etc etc. (The last thing that keeps their people in check)
>Nigeria
Oil is roughly 75% of the country's revenue, 90% of the country's exports
>Russia
They have their reserves to be able to cope with the falling price for at least a decade, but that doesn't mean their economy won't get reduced even more
>Asia
Qatar, Saudi, UAE, Kuwait, Iraq, Iran, Kazakhstan, etc etc. All rely on oil, even if they all have a good amount of reserves they won't last long at all because of the entire industry taking a shit
A lot of wars/unrests brewing in the near future, 2020s here we go!