Oil futures are trading mixed after two consecutive sessions of declines on Friday amid expectations that Washington may soon take action to lower prices, which have been holding above the $80 a barrel mark.

Travel restrictions in China, pressuring fuel demand. Brent crude futures rose 0.04% to $84.5 a barrel, while WTI crude fell 0.21% to $81.95 a barrel.

China, the world’s second-largest oil consumer, suspended some international flights and stepped up efforts to contain a virus outbreak in Tianjin as the highly contagious strain reached the northeastern city of Dalian.

The world’s biggest oil importer also reported the first annual decline in crude shipments in two decades for 2015 as Beijing took tough regulatory action on the refining sector and cut huge amounts of inventories, although traders expect a rebound in imports this year.

Brent and WTI crude prices are poised for a fourth straight week of gains on supply concerns, geopolitical tensions in Libya and Kazakhstan, and a drop in U.S. inventories to 2014 lows.