SEOUL (Reuters) - U.S. crude oil futures fell more than a US dollar on Thursday in early Asian trades, extending the previous session's losses on concerns over weak oil demand as equity markets tumbled and economic gloom spread.

Front-month November crude lost US$1.04 a barrel at US$80.74 as of 2309 GMT after it ended 6 cents lower at US$81.78 on Wednesday. November Brent crude settled US$1.26 lower at US$83.78 a barrel.