New York's main contract, West Texas Intermediate crude for delivery in February was up 28 cents to USD 101.59 a barrel. Brent North Sea crude for February gained 15 cents to USD 112.60.
"US consumer economic data saw its biggest jump in a decade, signalling increased confidence in its economic recovery," said Nick Trevethan, senior commodities strategist at ANZ Research.
Data out of Washington yesterday showed a 9.9 per cent surge in consumer credit in November, the biggest increase since 2001.
Credit card spending was up 8.5 per cent, while non-revolving loans, including university and automobile loans, jumped 107 per cent.
It added to the growing sense that a recovery in the world's biggest economy and oil consumer is showing signs of strength, coming days after a fall in the unemployment rate and a bigger-than-forecast rise in job creation.
Adding to the upward pressure on oil is lingering concern about Iran's nuclear programme, Trevethan told AFP.
Iran -- the world's fourth largest oil producer -- has threatened to close the strategic Strait of Hormuz if the European Union goes ahead with plans to slap a ban on imports of its oil as part of sanctions to stop its nuclear programme.
"Iran's external relations can affect oil markets through more than just the blockage of trade," Barclays Capital said in a commentary.
"In our view, the situation is now severe enough to run the danger of creating a clash almost accidentally."