Oil Holds at $100 a Barrel as Iranian Tensions PersistContinued efforts by the European Union, U.S., U.K., and Canada to curb Iran's nuclear program continue to create tension between the countries and pushed oil prices to $100 a barrel in the past two weeks. The goal is to make it harder for Iran's leaders to receive payment for their crude exports in an effort to cut funds to the country so it can't sustain its nuclear program. Crude oil settled Friday at $99.41 a barrel on the New York Mercantile Exchange—$1.55 less than the week prior...