So the major obstacle to the development of new supplies is not geology but what happens above ground: international affairs, politics, investment and technology.
Daniel YerginBut eventually it's a question of access: Getting access to fields is on top of the oil companies' agenda. We see a substantial build-up of supply occurring over the coming years.
Daniel YerginPeople 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.
Daniel YerginEven Silicon Valley investors have put well over a $1 billion in new energy technologies.
Daniel Yergin