This is sort of what was happening back when gas was $4 in the states. It turns out that all those wall street players had a sort of racket going where each was

This is sort of what was happening back when gas was $4 in the states. It turns out that all those wall street players had a sort of racket going where each was buying from the last in a long chain. Those firms collapsed in the crash, their trading stopped, and gas went back down to >$2.