Zheng Xing Xing Ye Ri Bao·2025-09-30 08:51Group 1 - The oil and gas extraction sector experienced a decline of 0.49% on September 30, with China National Offshore Oil Corporation (CNOOC) leading the losses [1] - The Shanghai Composite Index closed at 3882.78, up 0.52%, while the Shenzhen Component Index closed at 13526.51, up 0.35% [1] - Major stocks in the oil and gas extraction sector showed mixed performance, with *ST Xinchao rising by 1.40% to a closing price of 3.61, while CNOOC fell by 1.02% to 26.13 [1] Group 2 - The oil and gas extraction sector saw a net outflow of 134 million yuan from institutional investors, while retail investors contributed a net inflow of 42.49 million yuan [1] - Detailed fund flow data indicates that *ST Xinchao had a net inflow of 1.57 million yuan from retail investors, despite a net outflow of 1.47 million yuan from institutional investors [2] - CNOOC faced a significant net outflow of 120 million yuan from institutional investors, with retail investors contributing a net inflow of 34.61 million yuan [2]