The important info to know is that they only have a 3.7% net...

The important info to know is that they only have a 3.7% net revenue interest in these HI wells, so net operating cashflow from the two wells will top out at $A8mil/pa at best.
What you're investing in here is very good management who are capable of repeating this success in the near term - I'm anxiously awaiting some news on their 100% held HI lease for maybe a farmout & a possible drilling program.