DOHA, 24 April 2006 — A major energy forum opened in Qatar yesterday with no significant decisions expected as the United States and Iran traded blame for market tension that has pushed oil prices to record highs. The 10th International Energy Forum was inaugurated by Qatar’s Crown Prince Sheikh Tamim ibn Hamad Al-Thani in the presence of ministers and representatives of 56 oil producing and consuming countries. The forum, going on until Tuesday, had kicked off unofficially a day earlier with meetings between some of the world’s largest producers and the chief executive officers of several oil giants.