Oil prices up 4% on uncertain Iran-US ceasefire prospects

TOKYO, Japan — Oil prices jumped 4 percent Thursday after Iran vowed not to reopen the Strait of Hormuz so long as a US naval blockade remained in place despite a ceasefire extension. At around 0025 GMT, the benchmark US oil contract West Texas Intermediate (WTI) climbed 4.06 percent to $96.73 per barrel. International oil benchmark