Stocks to watch on the Australian stock exchange at noon on Friday:
BHP - BHP BILLITON - down 7.00 cents, or 0.19 per cent, at $37.59
BHP launches it Five Rivers Conservation Project
QAN - QANTAS AIRWAYS - steady, at $1.15
Reserve Bank of Australia governor Glenn Stevens has played down comparisons between the government debt guarantee sought by Qantas and the one given to the big four banks during the Global Financial Crisis (GFC).
WBC - WESTPAC - down 29.5 cents, or 0.86 per cent, at $34.015
Westpac chief financial officer Phil Coffey has been promoted to the role of chief executive Gail Kelly's deputy.