From Columbia Business School in New York City, CNBC brings together two of the most successful men in business -- Bill Gates and Warren Buffett -- for an hour-long question and answer session with students.
John Kingston, global director of oil at Platts discusses the importance of government decision and the China factor in global oil supplies, with Daniel Yergin, chairman of IHS Cambridge Energy Research Associates. Donald Straszheim of ISI Group joins in the conversation with CNBC's Martin Soong and Sri Jegarajah.