U.S. crude oil futures were on track for their biggest weekly decline since late October on Friday, with prices coming under pressure as top consumers impose travel restrictions amid the spread of the Delta variant of the coronavirus.
However, rising tensions in the Middle East provided a floor under the market.
U.S. West Texas Intermediate (WTI) crude futures have dropped 6.6% this week, the biggest weekly loss since the end of October. The market was unmoved at $69.09 a barrel, as at 0038 of GMT.
Brent crude oil futures have given up 6.6%, the most since mid-March and prices were down 2 cents at $71.27 a barrel on Friday.