The Phase 4 and Phase 5 gas refineries are seen in Assalouyeh, 1,000 km (621 miles) south of Tehran, January 27, 2011. As Washington and its allies tighten the screws on Tehran over its nuclear program, Iran is coming up with new ways to sell its oil - offering special deals to allies China and India, delivering oil to clients and swapping it for gold and grain. Tehran may also be devising ways to make its oil more saleable on international markets, switching it between tankers and blending crudes to disguise the origin, oil trading and shipping sources have told Reuters. They spoke on condition of anonymity because of the sensitivity to business relationships.

Iran