Economic Observation Network The oil and gas extraction and service sector continued to rise, with Blue Flame Holdings and Zhongman Petroleum hitting the limit up, Tongyuan Petroleum rising by over 20%, Potential Hengxin and Keli Shares rising by over 15%, Shouhua Gas rising by over 10%, and New Natural Gas, Petrochemical Oil Services, CNOOC Development, New Tide Energy, and CPC Engineering following suit. In terms of related ETFs, the oil ETF Guangfa (159018) rose 2.29% with a turnover of 3.6719 million yuan, while the oil and gas ETF Huitianfu (159309) rose 2.86% with a turnover of 85.2427 million yuan.