世界上第三大石油消费国——日本,正在对它的原油供应来源进行根本性调整。日本在两年之内,从一个通过同一些大石油公司签订合同而获得几乎70%的原油的国家,变成了一些国家石油公司的重要顾主。目前,这些国家石油公司通过同日本独立的炼油厂和贸易公司直接交易,提供了日本所需石油的大约47%。由那些大石油公司提供的份额 Japan, the world’s third-largest oil consumer, is making fundamental adjustments to its source of crude oil supplies. Within two years, Japan has become a key player in a number of national oil companies from a country that obtained almost 70% of its crude oil through contracts with some of the largest oil companies. Currently, these national oil companies are trading directly with Japanese independent refineries and trading companies, providing about 47% of the oil Japan needs. The share provided by those big oil companies