Ann: Entitlement Issue - Acceptances and Under Subscription, page-7

marketinfo wrote: "... the $330k tax credit goes only to the rights and shortfall subscribers"

It's more complicated than that. JMEI tax credits have to be apportioned equally to all subscribers of new shares over the whole financial year, so (a) one has to wait until the end of the financial year and share it across all raisings over the year (b) wait for the company to file its annual report for 2018-2019, and (c) its tax return. It's a long wait, but as you say ... well worth it for those with patience (and it will happen).

The more immediate and exciting benefit will be from whatever the drilling reveals!