Oil prices traded below $42 in Asia today ahead of an OPEC meeting and the release of data on China's important manufacturing sector later in the week.
The market will be watching whether members of the Organisation of the Petroleum Exporting Countries, which meets on December 4, slash currently high output levels and ease a crude supply glut that has depressed prices for more than a year.
Analysts said traders will also tune in to two key speeches by US Federal Reserve chair Janet Yellen this week for signs on the timing of a hike in US interest rates.
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At around 0230 GMT, US benchmark West Texas Intermediate for delivery in January was up 10 cents to $41.81 and Brent crude for January was trading five cents lower at $44.81 a barrel.
"We expect the focus to return to the timing of the US interest rate rise, with two key speeches by Fed Chair, Janet Yellen, on Wednesday and Thursday," Capital Economics said in a market commentary.
Analysts expect Fed policymakers to raise interest rates during their December meeting, a move that will boost the dollar and make dollar-priced oil more expensive, denting demand and prices.
OPEC's Friday meeting is expected to focus on the global crude oversupply, the return of Iranian oil to the market after the lifting of western economic sanctions and whether the cartel will cut production to boost prices.
"However, comments from key OPEC ministers still seem relatively sanguine. Also, it is not clear that even if OPEC did cut its production target, actual output would fall, given the cartel is already producing well above its current target," Capital Economics said.
Sanjeev Gupta, head of the Asia Pacific oil and gas practice at professional services firm EY, said the OPEC meeting would "draw attention on supply and demand in the next year".