Trevor Williams/DigitalVision via Getty Images The Williams Companies (WMB) is an American, Oklahoma based energy company. The company, with a market cap of more than $40 billion, has major natural gas processing and transportation assets. As we'll see throughout this article, the company's impressive assets will enable the company to continue driving additional shareholder returns. Williams Companies Overview The company has a strong portfolio of assets, and has continued to perform well. Williams Companie ...