Oil prices jumped on Thursday on persistent worries about supply from the Middle East amid an increase in attacks on shipping in the Gulf and the Strait of Hormuz, while the US cut output as a hurricane menaced offshore production.Brent crude futures were up $4.55, or 4.54%, at $104.75 a barrel by 1205 GMT — the highest in over a week. US West Texas Intermediate (WTI) crude gained $4, or 4.53%, to $92.28, its highest since October 2. Both contracts rose over $5 a barrel earlier in the session...