This incredible picture from space shows how the U.S. oil industry has boomed to such an extent that a gas field now burns as brightly as a major city. The rapid increase in shale oil production means it is now often more economical to 'flare off' unwanted gas than to sell it. As a result, one field in North Dakota, the state leading the energy revolution, is now burning off enough gas to power all the homes in Chicago and Washington D.C. combined. In a recently released satellite image from NASA, the light being given off at the Bakken formation,...