Natural-gas prices closed near their eight-month low, resuming the market’s sluggish July as unseasonably cool weather keeps damping demand. Prices for the front-month August contract settled down 6.6 cents, or 1.7%, to $3.781 a million British thermal units on the New York Mercantile Exchange. Traders refocused on the big-picture supply-demand dynamic that has shrunk the market by 20% since June, halting a one-day rally that had come from a report that showed a smaller-than-expected addition to storage. The market finished down 4.4% for the week. Weather forecasts have been cool all summer, limiting demand for air conditioning and the gas-fired electricity that fuels it. Forecasts still show mild weather, including temperatures as much as eight degrees Fahrenheit below normal, lingering over the center of the country through the first week of August. The weather has already allowed producers to put a record […]