CNBC | US crude lingers near 7-month low on Iran sanctions waivers, economic concern CNBC Oil prices remained under pressure on Tuesday after Washington granted sanctions exemptions to top buyers of Iranian oil, lifting supply concerns and turning the market's focus to worries that an economic slowdown may curb fuel demand. U.S. West Texas ... Oil prices down on Iran sanction waivers and demand concerns Oil Is in a Holding Pattern, Never Mind Iran Sanctions Nervous oil: Five factors driving price swings |