West Texas Intermediate fell, extending a second monthly loss, as an increase in crude stockpiles in the U.S. signaled slowing demand in the world’s biggest oil consumer. Futures slid as much as 0.8 percent in New York after the industry-funded American Petroleum Institute said inventories rose by 5.9 million barrels last week. Supplies climbed by 2.4 million barrels to 382.2 million, the highest level in four months, according to a Bloomberg News survey of analysts before data from the Energy Information Administration today. “We’re seeing a picture of weakness,” said Michael McCarthy , a chief market strategist at CMC Markets in Sydney. “The drop in demand from U.S. consumers is likely to weigh” on prices, he said. WTI for December delivery declined as much as 80 cents to $97.40 a barrel in electronic trading on the New York Mercantile Exchange . It was at $97.70 at 4:05 p.m. Singapore […]