Iranian oil minister Bijan Namdar Zanganeh is preparing to visit the U.A.E. this week, underscoring the deepening concern among OPEC members over the slump in oil prices. After trips to Kuwait and Qatar last week to discuss strategies to buoy prices, Zanganeh will meet with officials in the U.A.E. tomorrow, Shana, the Tehran-based oil ministry’s news service, said on its website yesterday. The discussions come before the Organization of Petroleum Exporting Countries’ next scheduled meeting on Nov. 27. OPEC producers have stepped up their diplomatic visits before the group’s meeting in Vienna, potentially seeking a consensus on how to react to oil prices at a four-year low. Brent crude, a benchmark for more than half of the world’s oil, has plunged 30 percent since the end of June, sapping revenue for producers from Venezuela to Saudi Arabia. “They want to stabilize the price,” Tom James, managing director of consultancy Navitas Resources, said by phone from Dubai yesterday. “They do have some coordination before meetings.” Iran’s OPEC Governor Hossein Kazempour, national representative Mehdi Asali and the country’s head of the oil contracts committee Mehdi Hosseini will accompany Zanganeh to the U.A.E., Iran’s oil ministry said. Iraqi President Fouad Masoum and Libyan Prime Minister Abdullah al-Thinni flew to Riyadh last week for separate talks with Saudi officials. Rafael Ramirez, Venezuela’s foreign minister and representative to OPEC, held talks in Algeria and Qatar, while Saudi Arabia’s Al-Naimi toured Latin America. bloomberg