MarketWatchDoubts linger over OPEC's preliminary deal on oil outputMarketWatchThe 14-nation group of major oil producers is targeting a production cap that would hold output to between 32.5 million and 33 million barrels a day. OPEC's latest monthl …

TIMEExecutive Disputes Role of Koch Brothers' Father in Nazi Oil RefineryTIMEA senior Koch Industries executive is disputing a new book that says Fred Koch, the father of billionaire brothers Charles and David Koch, helped build a Nazi oil refinery. In …