G7 Countries: Oil Prices Threat to Economy WASHINGTON - Declaring that high oil prices are a threat to the global economy, the world's industrialized countries urged producers Friday to provide price relief by boosting supplies.    The Group of Seven countries - the United States, Japan, Germany, France, Britain, Italy and Canada - also resolved to agree on providing battered Iraq with relief from its massive debt burden while also working on a deal to increase debt relief for the world's poorest countries...