"Oil Prices Hit $100 a Barrel"

RENEE MONTAGNE, host:

NPR's business starts with the price of oil.

After hitting the symbolic price of $100 a barrel, oil prices slipped back a bit. Still, pressures pushing oil prices to all-time highs remain - soaring demand from China and India, a weak dollar, and political tensions in both the Middle East and Africa's big oil producer, Nigeria.