October Natural Gas futures rallied for a third consecutive session after reaching a 42-week low on August 25. The EIA inventory storage report showed a build of 18 billion cubic feet, slightly less than the expected 20 billion cubic feet. Working gas in storage reached 3,217 billion cubic feet as of Friday, which is 112 billion cubic feet below last year's level but 154 billion cubic feet above the five-year average. Demand for the week is expected to be strong before shifting to a low to moderate range.