???? 据道琼斯2月20日消息，周五，美国天然气期货价格略微收跌0.4%，至3.069美元/百万英热单位，但是本周上涨5.4%，并且是连续第四周周线上涨。本周天然气价格上涨的趋势主要是由于一场冬季风暴突然袭击了德克萨斯州，迫使美国约20%的天然气生产中断。但在过去两个交易日中，天然气价格已经开始回落，部分原因是人们担心液化天然气出口也受到冬季暴风雪的影响，另一个原因是人们担心如此寒冷的2月份可能导致早春和暖春的突然到来，这可能会拖累需求。

????张春晓 摘译自 道琼斯

????原文如下：

????Natural Gas Notches 4th Straight Weekly Rise

????Natural gas prices finish a slight 0.4% lower at $3.069/mmBtu, but end with a 5.4% weekly increase -- the fourth straight weekly rise for the commodity. The rising trend for natural gas this week was largely due to a brutally-cold winter storm that took Texas by surprise and forced some 20% of US gas production offline. But gas prices have begun to retreat the past two sessions, partly on concerns that LNG exports are also being hurt by the winter storms, but also on worries that such a cold February might lead to the sudden arrival of an early and warm spring that could hurt demand.