Ann: June 2016 Quarterly & Appendix 5B-STX.AX, page-193

Yep, you'd think it near impossible to keep some good flows under wraps. Unless STX runs the tightest ship in the world of men.
Probably the fairest thing to do is, once gas flow rates pass the peak rate from the last round, is to put the share into a trading halt. And if it has to stay in trading halt for several weeks, I could live with that. Otherwise management might get caught by a rising share price, enquiries from the ASX, and have to realise a statement earlier than they might other wise want. And in the meantime, most of the market would be uninformed.