Oil futures climbed on Tuesday, finding support after posting declines over the past four sessions as negotiations over Iran’s nuclear program were set to extend beyond the day’s deadline. Tehran and the West were supposed to have a final agreement Tuesday regarding Iran’s nuclear program, which was expected to eventually send million of barrels of Iranian oil onto the global market. But media reports said discussions were likely to continue this week. On the New York Mercantile Exchange, August West Texas Intermediate crude CLQ5, +0.81% tacked on 40 cents, or 0.7%, to $58.73 a barrel. It had tallied a four-session ... (full story)