From stuff website...
The well is expected to cost US$15m to drill. NZOG has farmed out a 10 per cent share of the prospect to Peak Oil & Gas, which will pay for 20 per cent of the well. Ideally, NZOG wants to bring in another partner to bring its holding down to 50 per cent, so it pays nothing for the well to be drilled.
Keeping 50% for no drilling cost would be a good outcome. Doesnt sound like any drilling will happen until mid-late next year though, if at all.