I have looked at all figures. Take my holding. £5500 at 0.0847 is pretty much £3100 in i3. That is now double- £6200. First day of trading should see about 30% premium. Now upto £8200. When the oil starts flowing maybe then 3 to 4 times that. £30000 is roughly my own figure.
Unless anyone has stacks of money at a very low average, i fail to see how this can be life changing. i3 need to gobble up a couple more fields before we can realise serious money.