
September Nymex natural gas (NGU23) on Tuesday closed -0.136 (-4.87%).
Nat-gas prices Tuesday dropped to a 1-week low and closed sharply lower. Prices retreated on the outlook for cooler U.S. temperatures later this month, which will reduce nat-gas demand from electricity providers to power air conditioning. The Commodity Weather Group said warm U.S. temperatures could peak next week and shift cooler from August 30-September 13.