There is a surplus of oil pouring onto world markets and a surplus of exports out of the United States. Ditto for Australia. The reason oil costs more at the pumps is that they are charging it and people are paying it.
All we need is one chief executive of any nation mention nationalizing oil resources and within 24 hours, the price would "mysteriously" drop.
Australia not only exports their oil, they reimport it and pay a premium for it to put their own oil into their own tanks.
This. Civilization. Doesn't. Make. Any. Sense.