通源石油今日跌3.8%，有4家机构专用席位净卖出1.68亿元

Group 1 - The stock of Tongyuan Petroleum declined by 3.8% today [1] - The trading volume reached 2.355 billion yuan, with a turnover rate of 32.70% [1] - Post-market data indicates that four institutional special seats net sold 168 million yuan [1]