油气开采板块2月2日跌5.52%，洲际油气领跌，主力资金净流出3.99亿元

Group 1 - The oil and gas extraction sector experienced a decline of 5.52% on February 2, with Intercontinental Oil and Gas leading the drop [1] - The Shanghai Composite Index closed at 4015.75, down 2.48%, while the Shenzhen Component Index closed at 13824.35, down 2.69% [1] - Major stocks in the oil and gas extraction sector showed significant declines, with Intercontinental Oil and Gas falling by 9.91% to a closing price of 4.91 [1] Group 2 - The net outflow of main funds in the oil and gas extraction sector was 399 million yuan, while retail investors saw a net inflow of 408 million yuan [1] - Specific stock fund flows indicated that Intercontinental Oil and Gas had a main fund net outflow of 16.25 million yuan, while retail investors contributed a net inflow of 29.18 million yuan [2] - Blue Flame Holdings experienced a significant main fund net outflow of 56.69 million yuan, but retail investors had a net inflow of 70.77 million yuan [2]