Apparently they're not going to.
"BHP said later it would not be making a stock exchange announcement on the well's failure but confirmed its fate."
http://www.smh.com.au/business/high-hopes-for-bhps-first-falklands-well-dashed-20100712-107zw.html
"BHP said later it would not be making a stock exchange announcement on the well's failure but confirmed its fate."
http://www.smh.com.au/business/high-hopes-for-bhps-first-falklands-well-dashed-20100712-107zw.html