if it were Woodside or some other large oil Co. there would not be a trading halt as success or failure would not cause large price flucuations, but there could be wild price movements on rumours in a 20c stock such as MOG, hence the trading halt. and another thing, crew members have mobile phones if they saw anything could be straight on to a broker, MOG does not want speculative trading in an uninformed market, so trading halt required
