Oil prices fell on Friday, extending losses from the previous session after US President Donald Trump canceled plans to strike Iran, reducing fears of an escalation of hostilities following tit-for-tat attacks earlier in the week. Brent futures fell $1.21 or 1.3% to $89.17 a barrel at 0042 GMT, while US West Texas Intermediate (WTI) crude was $1.23, or 1.4%, lower at $86.48. On a weekly