If there was one thing guaranteed to follow low oil prices (other than the loss of thousands of jobs) it was mergers and acquisitions. This has certainly rung true as companies consolidate their portfolios or use their war chests to snap up competitors while prices are down. The recent deal between Royal Dutch Shell and BG Group has many expecting a renewed wave of major business decisions. The buzz has fueled rumors that BP Plc will be susceptible to a takeover by fellow oil giant Exxon Mobil Corp.