While the prospects of oil resources would be attractive to the Argentinian government it is likely that their latest sabre rattling is designed to distract attention away from domestic economic difficulties, rather than to secure those rights. That was the case during the invasion and though it is a quite different government the techniques remain the same.

In a related issue Argentinia yesterday announced plans to nationalise the Repsol owned portion of oil company YPF, much to the disgust of the Spanish Premier. http://www.guardian.co.uk/world/2012/apr/17/spain-argentina-oil-company-ypf?CMP=twt_gu