Natural-gas futures dropped back below $4 Thursday as record surpluses keep damping any risk of shortages for the upcoming winter. Prices for the front-month November contract settled down 9.1 cents, or 2.3%, to $3.932 a million British thermal units on the New York Mercantile Exchange. A third-straight day of losses marked the fifth time since August that natural gas has sunk back after cresting above $4/mmBtu. It has not stayed above $4/mmBtu for more than three days since early July. Thursday’s biggest losses came after the U.S. Energy Information Administration said that producers added 112 billion cubic feet of gas to storage for the week ended Sept. 26. The addition was 5 bcf larger than the 107 bcf consensus average expectations of 18 analysts and brokers in The Wall Street Journal’s weekly survey. It also set a record for September and was the 12th-largest weekly […]