Nov 20, 2015 The billionaire energy investor hasn't picked a favorite candidate yet.
Jul 24, 2015 Each has its own requirements.
Jun 16, 2015 How to calculate a prince's worth? Start by thinking like a billionaire.
Mar 25, 2015 Princess Reema talks about her efforts to train women to join the workforce.
Mar 11, 2015 The expansion of solar power to replace nuclear has hit a wall: The capacity of Japan's grid.
Dec 22, 2014 Members of the oil cartel could get higher prices if they cut production but there would be a cost.
Nov 28, 2014 The material in blu-ray discs make solar panels more efficient.
Nov 4, 2014 Why the world’s largest oil exporter cut prices for crude oil sold to the U.S.
Oct 10, 2014 Fracking for oil is expensive, so at some point falling prices will make some wells unprofitable.
Dec 30, 2013 Saudi Arabia has made a $3 billion pledge to help Lebanon buy arms to counteract the role of Hezbollah.