Group 1 - The oil and gas ETF (159697.SZ) increased by 1.85%, with the associated index, Guozheng Oil and Gas (399439.SZ), rising by 1.82% [1] - Major constituent stocks saw significant gains, including China National Offshore Oil Corporation (CNOOC) up 1.61%, China Petroleum & Chemical Corporation (Sinopec) up 0.87%, and China Merchants Energy (招商南油) up 10.16% [1] - The geopolitical situation in the Middle East remains tense following the U.S. strike on Iranian nuclear facilities, with potential retaliatory actions from Iran, including threats to the Strait of Hormuz, a critical oil shipping route [1] Group 2 - Since the onset of the conflict, the oil and gas ETF has experienced a net inflow of 108 million, with a net inflow rate of 127% [2] - The report indicates that historical data suggests such conflicts typically lead to short-term reactions in oil prices, while long-term prices are determined by supply and demand fundamentals [1]