Oil prices rose after an Iranian security official stated that Tehran rejected a U.S. proposal to transfer its 60% enriched uranium stockpile to a third country, according to Al Jazeera. Brent crude futures settled up $1.27, or 1.39%, at $92.76 a barrel, while U.S. WTI crude gained $0.49, or 0.57%, to settle at $86.53 a barrel. Citing analysts, the report noted that Iran's stance has reignited supply concerns.