油气开采板块12月15日跌0.44%，洲际油气领跌，主力资金净流出1832.44万元

Group 1 - The oil and gas extraction sector experienced a decline of 0.44% on December 15, with Intercontinental Oil & Gas leading the drop [1] - The Shanghai Composite Index closed at 3867.92, down 0.55%, while the Shenzhen Component Index closed at 13112.09, down 1.1% [1] - The trading volume for the oil and gas extraction sector showed significant activity, with Intercontinental Oil & Gas recording a trading volume of 1.827 million shares and a transaction value of 479 million yuan [1] Group 2 - The net outflow of main funds in the oil and gas extraction sector was 18.32 million yuan, while retail funds saw a net outflow of 31.79 million yuan [1] - Major stocks in the sector showed varied fund flows, with China National Offshore Oil Corporation experiencing a net inflow of 34.58 million yuan from main funds [2] - Blue Flame Holdings had a net inflow of 4.53 million yuan from main funds, while Intercontinental Oil & Gas faced a significant net outflow of 51.39 million yuan [2]