In other parts of the world, Brazil registered its second deadliest day in its COVID-19 pandemic, with 2,724 deaths, while India on Friday reported its highest daily increase of new COVID-19 cases in more than three months.
A weaker dollar against most currencies on Monday also supported commodities, with dollar-denominated commodities becoming more affordable to holders of other currencies.
A Jan. 4 meeting of the Organization of the Petroleum Exporting Countries (OPEC) and allies including Russia, a group known as OPEC+, also looms over the market.
Investors largely shrugged off comments by US President Donald Trump that a nearly $900 billion stimulus bill, agreed upon after months of wrangling in Congress, was "a disgrace" that he might not sign.
Oil fell further after Trump threatened not to sign an $892 billion coronavirus relief bill, saying he wants Congress to increase the amount in the stimulus checks which lawmakers approved on Monday.
US West Texas Intermediate (WTI) crude futures dropped 30 cents, or 0.6%, to $47.67 a barrel at 0156 GMT, while Brent crude futures fell 26 cents, or 0.5%, to $50.65 a barrel.