Hong Kong Stock Market Movers | The "Big Three Oil Companies" fell collectively, with PetroChina (00857.HK) dropping over 3%, as progress in U.S.-Iran nuclear talks dealt a heavy blow to international oil prices.

Zhitong Finance APP has learned that the "three barrels of oil" fell collectively. As of press time, PetroChina (00857.HK) fell 3.16% to HK$10.10; CNOOC (00883.HK) fell 2.05% to HK$22.88; Sinopec (00386) fell 1.04% to HK$4.775.