Thinking out loud and clutching at straws.....
One of the things I've looked at in the past is when the flurry of announcements tends to come in.
Now I've focused on what eventually got us knowing about the prepayment when A40 was known as Tawana.
Please note this is by no means scientific, but just a way for me to sometimes join the dots and try spot patterns.
I've avoided the JV announcements and Farm-In announcements (doesn't fit what I'm looking for) e.g
etc...Just wanted to see when off-take month was in relation to the flurry of Tawana/A40 announcements at the time in Q1 2017 (Bearing in mind Q1 2019)