China's three major state-owned energy giants—China National Petroleum Corporation (CNPC), China Petroleum & Chemical Corporation (Sinopec), and China National Offshore Oil Corporation (CNOOC)—simultaneously issued announcements regarding abnormal stock price fluctuations in early March 2026. The announcements revealed that CNPC's A-share triggered the abnormal volatility standard after its cumulative price deviation exceeded 20% over three consecutive trading days from February 27 to March 3. Its share price closed at 13.15 yuan per share (approximately $1.69), marking a year-to-date increase of 26.32%. Sinopec's stock price also hit consecutive daily upper limits during the same period, closing at 7.82 yuan per share (approximately $1.00), with a year-to-date rise of 26.54%. All three companies cautioned investors to pay attention to potential impacts on international crude oil prices from factors such as geopolitics, implying that the recent sharp stock price fluctuations may be linked to uncertainties in the crude oil market.