Zheng Xing Xing Ye Ri Bao·2026-01-06 09:03Group 1 - The oil service engineering sector increased by 2.09% on January 6, with Renji Co., Ltd. leading the gains [1] - The Shanghai Composite Index closed at 4083.67, up 1.5%, while the Shenzhen Component Index closed at 14022.55, up 1.4% [1] - Key stocks in the oil service engineering sector showed significant price increases, with Renji Co., Ltd. rising by 4.79% to a closing price of 7.22 [1] Group 2 - The oil service engineering sector experienced a net inflow of 86.14 million yuan from main funds, while retail investors saw a net outflow of 23.13 million yuan [2] - Major stocks such as Haiyou Development and Tongyuan Petroleum had notable net inflows from main funds, with Haiyou Development receiving 39.85 million yuan [3] - The overall trading volume and turnover for key stocks in the sector were substantial, with Tongyuan Petroleum achieving a turnover of 1.02 billion yuan [1][2]