Zheng Xing Xing Ye Ri Bao·2025-08-15 08:44Core Insights - The oil service engineering sector experienced a slight increase of 0.36% on August 15, with Beiken Energy leading the gains [1] - The Shanghai Composite Index closed at 3696.77, up 0.83%, while the Shenzhen Component Index closed at 11634.67, up 1.6% [1] Stock Performance Summary - Beiken Energy (002828) closed at 10.66, with a rise of 2.60% and a trading volume of 167,200 shares, amounting to a transaction value of 177 million yuan [1] - Zhongman Petroleum (603619) closed at 19.77, up 2.28%, with a trading volume of 128,400 shares and a transaction value of 252 million yuan [1] - Junyou Co. (002207) closed at 7.35, increasing by 2.23%, with a trading volume of 142,400 shares and a transaction value of 104 million yuan [1] - Other notable performers include Keli Co. (920088) with a 1.67% increase, and PetroChina Oilfield Services (600871) with a 1.50% increase [1] Capital Flow Analysis - The oil service engineering sector saw a net outflow of 77.26 million yuan from institutional investors, while retail investors contributed a net inflow of 39.39 million yuan [2] - The main capital inflow and outflow for specific stocks include Beiken Energy with a net inflow of 14.97 million yuan from institutional investors, while retail investors had a net outflow of 10.87 million yuan [3] - Other stocks like Junyou Co. and Zhongman Petroleum also experienced varying degrees of net inflow and outflow from different investor categories [3]