中石油、中石化、中海油，集体提示风险

Core Viewpoint - The announcements from China National Petroleum Corporation (CNPC), Sinopec, and China National Offshore Oil Corporation (CNOOC) indicate that their A-share stocks experienced abnormal trading fluctuations, with cumulative price changes exceeding 20% over three consecutive trading days, attributed to uncertainties in the international oil market influenced by geopolitical factors and supply-demand dynamics [1][4][5]. Group 1 - CNPC's A-share stock price increased significantly, with a cumulative deviation of over 20% on February 27, March 2, and March 3, 2026, leading to a warning about trading volatility [1] - Sinopec reported similar trading fluctuations, confirming that its production and operational status remain normal, despite the uncertain international oil price trends [4] - CNOOC also noted a cumulative price deviation exceeding 20% over the same period, stating that its internal operations are stable and unaffected by major policy changes [5] Group 2 - As of the latest trading day, CNPC's stock closed at 13.15 yuan per share, with a total market capitalization of 24,067 billion yuan; Sinopec closed at 7.82 yuan per share, with a market cap of 9,456 billion yuan; and CNOOC closed at 43.41 yuan per share, with a market cap of 20,633 billion yuan [8]