Mon 07 Jul 2007Opec sees modest 2008 demandOpec said today that world oil demand in 2008 will grow moderately while supply from rival producers will expand and so cut the need for crude from the exporter group.The assessment, in Opec's July Monthly Oil Market Report, underscores its view that crude supply is enough and oil prices near a record high reflect a strain on refineries and other factors beyond its control.