Oil prices were mixed on Friday following a potential renewal of supply risk as Israel and Hezbollah traded accusations of ceasefire violations, and as a delay to an OPEC+ meeting left investors awaiting a decision on its output policy. Brent crude futures fell by 7 cents, or 0.1%, to $73.21 a barrel by 0232 GMT. Israel and Lebanese armed group Hezbollah traded accusations on Thursday over alleged violations of their ceasefire that came into effect the day before.