I think we have to keep an eye on what is not being done right now more than what is. Xstrata is likely trying to use the stock base they have to settle down their outstanding credit balance in order for the next stock run (post recession) to have them making money with little debt.
From what I understand Xstrata has a lot of material and a lot of cash and credit locked into them leaving them no room to expand during tight times. This gives them that option without taking out hard to find credit. It also dilutes the share price, but we all know that will recover.
I've heard it on all scales over many years that you should buy with cash because credit will hurt you in the end. I'm sure credit has its place. Low credit is also just that, credit. The balance sheet always looks better with debt gone.
Nuf said anyway....they have their reasons we will never know. Maybe we're involved in this in some way. Loosening up of the purse strings for future aquisitions.....maybe NOT. :)
Mustangman