Rising powers, shrinking planet : the new geopolitics of energy by Michael T Klare

"Four centuries ago, as the conquistadors roamed through South America, it was the search for gold that drove the clash of empires. A hundred years later, as the great powers fought over the West Indies, it was the quest for land that could grow sugar cane. Today, the key commodity is oil. No one knows this subject better than Michael Klare, and his book is a trenchant and informative guide to what the fatal thirst for oil means for the tensions and rivalries of our fragile planet."—Adam Hochschild, author of King Leopold’s Ghost