On London's ICE Futures exchange, the price of Brent North Sea crude for June delivery was up 66 cents to $70.95 a barrel.
Traders are still concerned about the possibilities that Iran'soil exports would halt if the United Nations imposes an international sanction on Teheran for its nuclear activities.
France and Britain, backed by the United States, introduced Wednesday a new draft resolution to the UN Security Council demanding Iran suspend all enrichment activities immediately or face possible sanctions.




