Two Consecutive Trading Limit Ups Prompt Announcements from China's 'Big Three' Oil Giants

PetroChina announced that its A-share price experienced an abnormal fluctuation, with the cumulative deviation of its closing price gains exceeding 20% over three consecutive trading days on February 27, March 2, and March 3, 2026. The company stated that all its production and operational activities are normal and there have been no significant changes in industry policies, but it reminded investors to be aware of risks associated with international oil price volatility. This announcement is part of a collective risk warning issued by China's 'Big Three' oil companies—PetroChina, Sinopec, and CNOOC—aimed at responding to abnormal trading activities in the market concerning related energy stocks.