U.S. Secretary of State Hillary Rodham Clinton has expressed concern that the Gulf States may be too lenient on Iran, insisting that the secretive power’s nuclear capacities ‘remain a serious concern’. Tehran’s Foreign Minister has reportedly claimed that the country will be able to make its own fuel for a nuclear research reactor later this year, following a technological breakthrough. Some remain skeptical about the regime’s capabilities. The Washington Post reports on why the US is unprepared for seizing hold of Arctic mineral wealth. President Medvedev has ratified a civil nuclear energy pact with Japan. The Dutch Supreme Court has, according to Bloomberg, lifted the freeze on $1.2 billion of proceeds from the 2006 sale of a refinery by a former Dutch unit of OAO Yukos Oil Co, a positive update for stakeholders of the expropriated company. The Telegraph takes us on a pictorial tour of the world’s top ten oil-producing countries.