Oil prices are likely to be “biased to the upside” for the rest of the year as demand from refineries rises in November and December, according to Citigroup Inc. An average price of $80 a barrel for this quarter is “realistic,” with spikes to $90 or even $100 possible if further disruptions worsen a supply crunch amid rising consumption, Citi’s Global Head of Commodities Research Ed Morse said Tuesday. Benchmark Brent crude topped $85 early last month on concern U.S. sanctions on Iran would create a shortage. Prices have since dropped back. The outlook comes as the Organization of Petroleum Exporting Countries and its allies send mixed supply signals to the market, with Russia suggesting it could push output to a record and an OPEC committee signaling […]