Oil edges above $65 as Middle East concerns support

LONDON (Reuters) - Oil edged further above $65 a barrel on Friday as concerns about a possible renewed spike in Middle East tensions outweighed rising U.S. inventories and other signs of ample supply.Iran responded to a U.S. drone strike that killed a top Iranian general on Jan. 3 with a missile attack on Iraqi air bases hosting U.S. forces that left no casualties. But a Revolutionary Guards commander said Iran would take "harsher revenge" soon."Hostilities may have ended for the time being, but..