Oil prices opened up lower on Monday as Iran and six world powers were close to nailing down a nuclear deal, while Greece and its creditors failed to find a bailout agreement over the weekend. The potential of Iran soon adding to global oil oversupply and the demand side weakening over China and Europe led several analysts to say that crude would fall further. Iran and six world powers were on the brink of finding a nuclear deal that would bring sanctions relief in exchange for curbs on Tehran’s nuclear program. In Europe, the Greek debt crisis continued as political leaders argued late into the night at an emergency summit, so far without result. And in Asia, investors will watch whether China’s stock markets can stabilize after a barrage of government support sparked a bounce in […]