_______________________But the Paris-based advisor to 28 energy consuming nations says, the U.S. position as the top world oil producer will end by mid-2020s, as resources diminished at the fields being tapped at the moment in the mid-country states of North Dakota and Texas. The IAEA says Middle East countries will then provide most of the increase in the global oil supply. ______________________不过总部位于巴黎为28个能源消费国担任顾问的组织称,美国作为世界上最大的石油生产国的地位将会在21世纪20年代中叶终结,因为届时中部州北达科他和德州所开发的油田中的储油量会减少.国际原子能机构称届时全球石油供给的增量将主要来自中东国家.