Oil prices ticked up in early trading on Wednesday after ending the previous session up more than 4% on worries that the Iran-Israel conflict could disrupt supplies.

Asian shares were mixed and oil prices advanced Wednesday after the escalation of conflict in the Middle East hit Wall Street. US benchmark crude oil was up 24 cents at $73.51 per

Oil prices initially rose after Iran's supreme leader Ali Khamenei rejected US President Donald Trump's demand for an "unconditional surrender", adding to sharp gains made the previous day. Six days into the conflict, Khamenei warned the United States would face "irreparable damage" if it intervenes in support of Israel.