By Tsvetana Paraskova Some Asian refiners have nominated lower than usual volumes of crude oil from Saudi Arabia in September as authorities in China and the rest of Asia have re-imposed restrictions to fight the Delta variant surge, officials at four refineries told Bloomberg. Aramco has notified those four refineries—one in Southeast Asia and three in Northeast Asia—that it would ship the crude they had asked for, the officials told Bloomberg. China Petroleum & Chemical Corporation, or Sinopec, is expected to reduce refinery run rates by up to 10 percent at some of its facilities amid renewed travel restrictions in China to fight a COVID wave, a commodity research analyst told Bloomberg in an interview on Tuesday. According to Jean Zou, an analyst at Shanghai-based commodities researcher ICIS-China, China’s largest refiner Sinopec is likely to reduce run rates at some refineries by between 5 percent and 10 percent in August, compared to previous plans for this month’s throughput. China imposed in the past two weeks widespread restrictions on travel in major cities, including Beijing, to contain a resurgence in COVID cases of the Delta variant. As with the previous outbreak, which China stifled with a complete lockdown, the rise in infections is affecting movement and, consequently, fuel use. The 20 biggest airports in China saw in the past week the number of flight departures falling to just 40 percent of the levels from 2019, BloombergNEF said earlier this week. “The wide decline in traffic will take a heavy toll on road fuel consumption, which will force producers like Sinopec and PetroChina to reduce refining run rates,” Luxi Hong, a Beijing-based analyst with BNEF, said in a note carried by Bloomberg. Refiners in Asia are also struggling with below-average margins, especially after Saudi Aramco raised last week its official selling prices for crude oil loading for Asia in September to the highest premiums to benchmarks since February 2020.