Purchasing an FPSO increases the borrowing requirement and costs...

Purchasing an FPSO increases the borrowing requirement and costs to get us to first oil.
Less risk if we lease for awhile with the option to purchase once we have income this is also common industry practice.
After the field is producing other options present hedging to guarantee an income Stream to service debt and on selling future production are just two options.
Do not like any arrangement that increase risk. There are a number of unknowns that will determine our ability to service debt, POO at first oil being one so why commit now when this decision can be deferred.
Do not like increasing the possibility of being squeezed out further down the track.
Keep costs low until we have the big picture appears to be the more sensible scenario.