Stocks to watch on the Australian stock exchange at noon on Thursday:
LEI - LEIGHTON HOLDINGS - up 2.5 cents, or 0.14 per cent, at $17.825
Construction giant Leighton Holdings has won a $249 million contract to provide services to the Isaac Planes coal mine in Queensland's Bowen Basin.
NAB - NATIONAL AUSTRALIA BANK - down 86 cents, or 2.37 per cent, at $35.37
Shares in National Australia Bank have fallen more than three per cent, despite the lender announcing an almost $6 billion cash profit.
ORG - ORIGIN ENERGY - up 18 cents, or 0.48 per cent, at $20.97
Taranaki oil and gas explorer and producer New Zealand Energy Corp (NZEC) has finally closed the deal to buy onshore petroleum licences and processing facilities from Origin Energy in a deal that at times looked capable of failure.
SEPARATELY: Origin Energy posts its first quarter production on Thursday
PDN - PALADIN ENERGY - up 2.0 cents, or 5.19 per cent, at 40.5 cents
Uranium miner Paladin Energy says an employee has died, almost a month after receiving significant burns in an electrical incident at its Langer Heinrich Mine in Namibia.
QAN - QANTAS AIRWAYS - down 1.75 cents, or 1.38 per cent, at $1.2475
Qantas Airways has increased its stake in the Jetstar Japan joint venture, making an equity injection valued at around $120 million.
TAH - TABCORP - down 1.5 cents, or 0.42 per cent, at $3.585
Wagering, keno and gaming support services business Tabcorp has called for the national regulation of the wagering sector.
WCB - WARRNAMBOOL CHEESE AND BUTTER FACTORY - up 9.0 cents, or 1.08 per cent, at $8.45
BGA - BEGA CHEESE - up 3.50 cents, or 0.8 per cent, at $4.425
Bega Cheese's takeover play for Warrnambool Cheese and Butter Factory has been given a boost, with the competition regulator greenlighting the bid.
WOW - WOOLWORTHS - up 22 cents, or 0.63 per cent, at $35.07
Woolworths has sold more than $15.68 billion worth of goods during the three months to October 6, an increase of three per cent on the same time last year.