Oil kept plummeting on Tuesday following the agreement between the U.S. and Iran to cease hostilities and begin nuclear negotiations, with Brent crude dropping below $80 a barrel for the first time since March.
Brent crude, the international benchmark, dropped more than 4% and clocked in at $79.79 per barrel at 8:45 a.m. ET, while West Texas Intermediate, the U.S. benchmark, plunged further, standing just above $77 a barrel at the same time.