Trump vows to send Iran "back to the Stone Age" as oil surges back above $100

Oil prices surged on Wednesday after U.S. President Donald Trump vowed in a televised address to the nation to hit Iran "extremely hard" over the next two to three weeks. West Texas Intermediate (WTI) crude rose 4.1% to $104.21 per barrel, while Brent, the international benchmark, gained 5% to $106.42, according to CNBC data.