3. Scott Duncan

•  Net Worth: $5.1 B                                                                      
•  Source of Wealth: pipelines
•  Citizen: United states
•  Age: 31

Scott is the son of late Dan Duncan. His father was was the owner and a principal shareholder in the company named Enterprise Products. The company deals in pipelines of oil and natural gas. Scott Duncan inherited  wealth after his father’s death along with other siblings.  His father was the richest man in Texas. Scott resides in the city of Houston, Texas. He owns shares of the Enterprise Products which is also a Fortune 500 company.