NEW: The price of oil breaches the $100-a-barrel threshold for the first time in months, as new flare-ups in the U.S. war with Iran stoke fresh concern for global energy markets. ↧ Oil hits $100 a barrel for first time in months as Middle East conf... The international benchmark, Brent crude, breached the symbolic threshold Wednesday after the latest flare-up between the United States and Iran. Gas prices also rose to their highest level since early June.