油气开采板块11月18日跌1.68%，蓝焰控股领跌，主力资金净流出3.4亿元

Market Overview - The oil and gas extraction sector experienced a decline of 1.68% on November 18, with Blue Flame Holdings leading the drop [1] - The Shanghai Composite Index closed at 3939.81, down 0.81%, while the Shenzhen Component Index closed at 13080.49, down 0.92% [1] Individual Stock Performance - Key stocks in the oil and gas extraction sector showed the following performance: - China National Offshore Oil Corporation (600938) closed at 28.58, down 1.31% with a trading volume of 343,000 shares and a turnover of 9.85 billion yuan [1] - *ST Xinchao (600777) closed at 3.95, down 1.74% with a trading volume of 226,500 shares and a turnover of 89.79 million yuan [1] - Intercontinental Oil and Gas (600759) closed at 2.89, down 3.02% with a trading volume of 3.9462 million shares and a turnover of 11.47 billion yuan [1] - Blue Flame Holdings (000968) closed at 7.49, down 3.48% with a trading volume of 190,800 shares and a turnover of 144 million yuan [1] Capital Flow Analysis - The oil and gas extraction sector saw a net outflow of 340 million yuan from institutional investors, while retail investors contributed a net inflow of 258 million yuan [1] - The capital flow for key stocks is as follows: - *ST Xinchao (600777) had a net outflow of 23.29 million yuan from institutional investors, with retail inflows of 12.57 million yuan [2] - Blue Flame Holdings (000968) experienced a net outflow of 27.11 million yuan from institutional investors, with retail inflows of 23.57 million yuan [2] - Intercontinental Oil and Gas (600759) had a net outflow of 57.82 million yuan from institutional investors, with retail inflows of 30.30 million yuan [2] - China National Offshore Oil Corporation (600938) faced a significant net outflow of 231 million yuan from institutional investors, while retail investors contributed a net inflow of 191 million yuan [2]