United Rentals buys Beaumont pump company for $780M By: Houston Business Journal via Business Journals March 13, 2014 at 13:36 PM EDT United Rentals Inc., the largest equipment rental company in the world, acquired Beaumont-based National Pump & Compressor for $780 million... Read More >> Related Stocks: United Rentals iPath Dow Jones-Goldman Sachs Crude Oil Fund