Zheng Xing Xing Ye Ri Bao·2025-09-17 08:52Group 1 - The oil and gas extraction sector increased by 0.29% on September 17, with China National Offshore Oil Corporation (CNOOC) leading the gains [1] - The Shanghai Composite Index closed at 3876.34, up 0.37%, while the Shenzhen Component Index closed at 13215.46, up 1.16% [1] - The trading volume and turnover for key stocks in the oil and gas extraction sector showed mixed results, with some stocks experiencing declines [1] Group 2 - The net outflow of main funds in the oil and gas extraction sector was 90.92 million yuan, while retail investors saw a net inflow of 91.57 million yuan [1] - Specific stocks like Blue Flame Holdings and Intercontinental Oil & Gas experienced significant net outflows from main and speculative funds [2] - The stock *ST New潮 had the highest net outflow from main funds at 51.56 million yuan, indicating potential concerns among institutional investors [2]