黄金白银大跌拖累大宗商品价格！油气ETF汇添富（159309）跌超3%，盘中逆市吸金1.14亿，此前连续10日大举揽金超4.2亿！

Group 1 - The core viewpoint of the news highlights a significant decline in gold and silver prices, which has negatively impacted commodity prices, leading to a drop in international oil prices and a majority of oil and gas stocks adjusting downwards [1] - The oil and gas ETF Huatai (159309) experienced a decline of 3.61% with a trading volume exceeding 620 million, while it recorded a net subscription of 114 million during a market downturn, continuing a trend of attracting over 420 million in net inflows over the past 10 days [1][2] - OPEC+ members have agreed to maintain their current production levels without increasing output in March, amidst rising geopolitical risk premiums from Iran and production disruptions in the U.S. due to winter storms, which have contributed to a general increase in international oil prices [4] Group 2 - Barclays predicts that by 2028-2030, the annual increase in non-OPEC oil supply may approach zero, indicating that with demand persisting and spare capacity diminishing, oil prices will likely seek upward balance [4] - The oil and gas sector is viewed as a long-term investment opportunity, with the oil and gas ETF Huatai (159309) providing exposure to leading companies across the entire oil and gas industry chain, allowing investors to share in the growth dividends of the sector [4] - The ETF focuses on the upstream and downstream of the oil and gas industry, emphasizing its role as a key pillar of the national economy, and includes only oil and gas sector stocks in its top ten holdings, enhancing its purity and potential for high returns [4]