Oil prices could be $5-$15 a barrel lower in 2016 if Iran sanctions lifted thumbnail World oil prices could be $5 to $15 a barrel lower than forecast next year if oil-related sanctions against Iran are lifted, the U.S. government’s energy agency said on Tuesday. In its monthly report, the Energy Information Administration said U.S. oil production growth was slowing even more quickly than it expected a month ago, while demand was higher than earlier forecast. But the agency left its price forecasts unchanged, putting Brent at $59 this year and $75 a barrel next year – with downside risks from Iran’s return. “A lifting of sanctions against Iran should a comprehensive nuclear agreement be concluded could significantly change the forecast for oil supply, demand, and prices,” EIA Administrator Adam Sieminski said in a statement. The agency said that Iran is believed to hold at least 30 million barrels […]