Oil prices edged down on Thursday, with WTI crude falling below $45 a barrel as pandemic-propelled demand concerns returned to the market. The reimposition of mobility curbs in many countries has been rattling sentiment, even after hopes for swift approval of anti-virus vaccines. Looking to the supply side, OPEC and other oil-exporting countries resume talks on Thursday to define their oil output policy for 2021. A decision to extend existing cuts of 7.7 million bpd into the first months of 2021 would be supportive for markets.