石油ETF（561360）开盘跌0.58%，重仓股中国石油跌0.64%，中国海油跌0.77%

Group 1 - The core viewpoint of the article highlights the performance of the Oil ETF (561360), which opened down by 0.58% at 1.550 yuan on February 26 [1] - Major holdings in the Oil ETF include China National Petroleum Corporation, which opened down by 0.64%, China National Offshore Oil Corporation down by 0.77%, and Sinopec down by 0.31% [1] - The Oil ETF's performance benchmark is the CSI Oil and Gas Industry Index return rate, managed by Guotai Fund Management Co., Ltd., with a return of 55.51% since its establishment on October 23, 2023, and a return of 13.58% over the past month [1] Group 2 - Other notable stock performances include Jereh Oilfield Services down by 0.57%, China Merchants Energy down by 0.75%, and Guanghui Energy down by 0.69%, while Zhongyuan Shipping increased by 0.35% [1] - Hengli Petrochemical decreased by 0.08%, Rongsheng Petrochemical by 0.40%, and Intercontinental Oil and Gas remained unchanged [1]