Sir Bill Gammell is the chief executive of Cairn Energy. He's a former Scottish rugby international who went to school with Tony Blair and knew George Bush when he was just a young Texas oil man with a famous father.
I think we might see $100 oil in the next five years
Sir Bill Gammell, Cairn Energy
Sir Bill's company was exploring for oil through the lean years of the 90s when the price of a barrel of crude was hovering around $20 a barrel.
Today the price is close to $60, and Sir Bill thinks it may go higher because supplies can barely keep pace with demand.
"I think we might see $100 oil in the next five years" says Sir Bill. "We won't see $20 again."