Yes you would have thought they could have got the announcement...

Yes you would have thought they could have got the announcement prepared in advance.
They'll be saving around $6mil in tax by doing the deal this month - this would have been the extra tax payable on the sale proceeds of $24.6mil from the deal in June/July this year - they had six months to do a deal to save this tax.
Paying $16/boe on 1P reserves sounds OK with oil selling at $90 - costs maybe less than $25 produces a good margin - they would be borrowing the funds from Macq at around 5.5%pa so overall it looks like a good deal especially if they don't have to do a placement.