Oil fell in New York as Iran made progress on an accord to lift sanctions on its exports, threatening to add to the surplus in global markets. West Texas Intermediate futures declined as much as 2.3 percent, after climbing 4.5 percent on Monday. Iran’s cooperation with inspectors is aiding the investigation of the country’s past nuclear activities, the International Atomic Energy Agency told world powers in Vienna on Monday. Successful implementation of the July 14 deal would allow the OPEC member to resume crude sales halted by sanctions. Iran’s vow to increase output “at any cost” to reclaim market share will potentially add to a global surplus that Goldman Sachs Group Inc. predicts may keep prices low for the next 15 years. Oil’s slump is taking its toll on shale drilling in U.S., where production has fallen from the highest level in more than three decades. “Oversupply is being […]