number of adr's on issue, page-11

Skyrocketer,

To the holders of ADRs, for the most part it doesn't really matter what the bank does with the shares. As long as when they (the traders) buy and sell them to each other, they are given the correct monetary value for consideration. What matters to the broker is that when they take the receipt to the bank, the bank gives then in return the correct amount of shares so they can then sell on the ASX.

It might become a bit more complex if the company made a profit, to which, it may want to payout a dividend. But one would be very hard pushed to find a oil'n'gas explorer/producer that is not in the ASX top 200 that actually pays out a dividend. So there is no need to worry about that here.

I can not 100% confirm this, but, banks in the USA can do what they like, regardless of whether it is legal or not. Though, I think the recent GFC is proof of that. I can't see what is stopping them from trading the shares they hold (in trust) on the open market ?
Banks do it with yours and mine money. Banks trade lots of thing that don't belong to them.

Trading derivatives is a very dangerous game.
Trading FPOSs on the ASX is a much safer bet.