A contact of mine emailed me tonight with news of an oil source in Narrogin (WA). The person who previously collected it has not been seen for a while and the new proprietor needs someone to collect the oil. Knowing that a resource like this is difficult to come by in normal circumstances, I felt the need to publicise it here.
Please contact me by PM and I will pass on the contact details.

Regards,
Tony
ps, the previous collector paid for the oil. This can be negotiated with the oil source by the person(s) who take over the collection.