IMHO you would be wasting your time unless you watch these shares regularly and take the profit whenever you can. If any of these do strike they will need the big companies to come in and help them so they will get bought out thereby the chances of them becoming a long term asset is unlikely...
Any Falklands oil share is a punt, better to take a shot when they are in the 15-20p range because they can drop like a stone when in £'s.
Take a look at Desires history if you want to see the highs and lows of a punt in this area. Whilst Rockhopper have had some good reports all the fields in...