Daniel Yergin — American Author born on February 06, 1947,

Daniel Howard Yergin is a Pulitzer Prize-winning American author, speaker, and economic researcher. Yergin is the co-founder and chairman of the Cambridge Energy Research Associates, an energy research consultancy that is now part of IHS Inc. He is best known as author of The Prize: The Epic Quest for Oil, Money, and Power and The Quest: Energy, Security, and the Remaking of the Modern World. He received his PhD from Cambridge University as a Marshall Scholar... (wikipedia)

The starting point for energy security today as it has always been is diversification of supplies and sources.
But that's not enough: To maintain energy security, one needs a supply system that provides a buffer against shocks. It needs large, flexible markets. And it's important to acknowledge the fact that the entire energy supply chain needs to be protected.
People always underestimate the impact of technology. To give you an example: In the 1970s the frontier for offshore development was 200 meters, today it is 4,000 meters.
We are living in a new age of energy supply anxiety.
Cycles of shortage and surplus characterize the entire history of oil.