$28 was defunct, Chavez told Reuters. "It has been pulverised. We believe that now the minimum should be $30 a barrel and the maximum whatever the market says," he said. Concerns resurfaced over Russian oil giant YUKOS as the firm's senior managers fled the country, fearing arrest in a government tax crackdown. Industry sources said the company's December exports should continue normally. In Iraq, exports from the main southern terminal were cut by 800,000 bpd following a pipeline blast on Monday. Oil sources said it may take a week to mend the corroded pipeline. Canada's 165,000 bpd Terra Nova field has been shut since the weekend, with operator Petro-Canada talking to regulators on restarting output after an oil spill. --SP 2259 Local Time 1959 GMT
