Wall Street Journal (subscription) | Schlumberger CEO Blames US Investors for Stagnant Oil Prices Wall Street Journal (subscription) U.S. investors are driving down the price of oil by shoveling too much money into American shale companies, the chief executive of Schlumberger Ltd., the world's largest oil-field service firm, said Friday. Paal Kibsgaard, an outspoken energy executive ... US shale makes 'rapid' return, global oil market on the mend: Schlumberger Schlumberger Says US Shale Making 'Rapid' Return as Global Oil Market Revitalized |