Guess what January 1, 2012 and May 12, 2016 have in common? (That shouldn't be too difficult...)
Some four years or so ago (precisely January 1, 2012) I woke up to the sound of chaos and agitation (am sure you did too). The reason, when I inquired, was that a new price regime (which hitherto had been campaigned) had dawned for petroleum product; from #65 to #130+