Natural gas prices had their largest one-day loss in a month after traders pulled back on signs of oversupply. The U.S. Energy Information Administration said producers added 68 billion cubic feet of natural gas to storage in the week ended July 17. The figure is one of the leading measures of balance between supply and demand, and it shows supply outdoing demand by nearly 30% more than it usually does this time of year. Analysts estimate that it puts oversupply at about 1 billion cubic feet a day, despite record demand from the power sector. “Supply continues to outpace demand in the market, and there doesn’t seem to be much of a cure,” Aaron Calder, senior market analyst at energy-consulting firm Gelber & Associates in Houston, said in a note. The front-month August contract lost 8.1 cents, or 2.8%, to $2.816 a million British thermal units […]