Aug 13 (LNGJ) - US natural gas spot prices fell from $4.47/million British thermal units at the beginning of July to $3.78 per MMBtu at the end of the month as natural gas stock builds continued to outpace historical norms, the US Energy Information Administration said in its short-term outlook. The EIA expects that the Henry Hub natural gas spot price, a benchmark unit for future US LNG exports, will average $4.46 per MMBtu in 2014 and $4.00 per MMBtu in 2015,








