| http://www.w3.org/ns/prov#value | - Saudi Arabia and other OPEC producers have said concern over oil product shortages due to a global refining crunch has fuelled a rally that has taken oil prices to record highs.The Organization of Petroleum Exporting Countries (OPEC) aims to add some four million bpd of refining capacity by 2010, gaining greater access to lucrative markets for gasoline and other high value products in the United S
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