据能源世界网8月6日新加坡报道，美国原油期货周五有望创下自去年10月下旬以来的最大周跌幅，由于冠状病毒德尔塔变体蔓延，顶级消费者实施旅行限制，油价面临压力。

　　然而，中东紧张局势加剧为市场提供了支撑。

　　美国西德克萨斯中质原油(WTI)期货本周下跌6.6%，为去年10月底以来的最大周跌幅。截至格林尼治时间00：38时，市场价格保持不变为每桶69.09美元。

　　布伦特原油期货价格下跌6.6%，为3月中旬以来的最大跌幅，周五下跌2美分，至每桶71.27美元。

　　在美国，每天新增的新冠病例攀升至六个月来的最高水平，全国报告的感染病例超过10万例，德尔塔病毒变异肆虐了佛罗里达州和其他接种率较低的州。

　　郝芬 译自 能源世界网

　　原文如下：

　　US oil set for biggest weekly loss since Oct as Delta variant fans demand worries

　　US 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.

　　US West Texas Intermediate (WTI) crude futures have dropped 6.6 per cent 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 per cent, the most since mid-March and prices were down 2 cents at $71.27 a barrel on Friday.

　　"Oil has been under pressure this week as moves to reinstate travel restrictions in China reflected the situation across Asia," ANZ said in a report.

　　"At least 46 cities have advised against travelling, and authorities have suspended flights and stopped public transport. This could impact oil demand as it comes towards the end of the summer travel season."

　　In the United States, daily new COVID-19 cases have climbed to a six-month high, with more than 100,000 infections reported nationwide as the Delta variant ravaged Florida and other states with lower vaccination rates.