International stock markets inched ahead today in somewhat subdued trading as Wall Street is closed for the Memorial Day holiday.
The gains came after opinion polls in Greece suggested the country might stick with austerity and stay in the euro common currency.
The likelihood of Greece leaving the euro has been growing steadily since early May, when political parties opposed to the harsh terms of the country's financial rescue received unexpectedly high support.
But surveys over the weekend showed that Greeks, while angry after more than two years of austerity measures, still want Greece to keep the euro currency and not revert back to the drachma.
Benchmark crude oil climbed above $91 a barrel. The dollar fell against the euro and the yen.