Crude-oil futures drifted lower in Asian trading hours Monday as investors wait for talks over Iran’s nuclear program to commence later this week and economic data releases for hints about U.S. monetary policy. On the New York Mercantile Exchange, light, sweet crude futures for delivery in December traded at $93.47 a barrel at 0602 GMT, down $0.37 in the Globex electronic session. January Brent crude on London’s ICE Futures exchange fell $0.37 to $108.13 a barrel. The premium of ICE Brent crude to Nymex WTI remains wide at around $14.68 a barrel after the two benchmarks moved in opposite directions last week. “WTI prices remained weak on rising stock levels, planned and unplanned refinery maintenance, strong import levels and rising oil production,” Barclays BARC.LN +