Hong Kong's Hang Seng (.HSI) declined 0.3%, with a subindex of tech stocks (.HSTECH) sliding 0.7%.
An index of mainland blue chips (.CSI300) fell 0.4%, while a subindex of property stocks (.CSI000952) was flat.
Weakness in Asia came despite small gains for Wall Street overnight, with U.S. stock futures flat.
U.S. West Texas Intermediate crude futures rose 90 cents, or 1%, to $92.38, just under a 10-month high reached on Monday.
Brent crude futures rose 27 cents, or 0.3%, to $94.70 a barrel.
Persons:
John Pearce, HSI, Hang, Kevin Buckland, Lewis Jackson, Stephen Coates
Organizations:
Benchmark U.S, Treasury, Federal, Bank of Japan, Bank of England, Japan's Nikkei, Tokyo, Reuters, Unisuper, Hang Seng developers, HK, Garden Services Holdings, Wall, U.S, Traders, U.S . West Texas, Brent, Thomson
Locations:
TOKYO, Hong Kong, Australia, Asia, U.S, Saudi Arabia, Russia