Please remember in this well published article the oil companies named may not be related to the same-name companies here in Australia.
for instance..
Shell referred to is Dutch Shell and not Shell Australia.
Castrol is the original company and it's relationship to Castrol Australia is unknown to me at this time.
Also be aware that the villains in this article are the legislators, as well as the oil companies that try to manage under these conditions without
bothering to notify the public of the changes and implications.