Exxon Mobil, Royal Dutch Shell and BP were among the oil companies targeted by hackers believed to be from China to steal proprietary information about oil and gas field bids and operations, according to Bloomberg News. McAfee earlier this month disclosed details about the intrusions, dubbed “Night Dragon." The security firm, however, did not list any of the victim companies. According to Bloomberg, citing unnamed individuals familiar with the investigations, the list of targeted companies also includes Marathon Oil, ConocoPhillips and Baker Hughes. — AM