The Duncans – $26B
The Duncan family shows us what it is like to attain the American Dream. Raised by his grandma since the death of his mom and brother at the age of seven, Dan Duncan used to live in poverty in Texas. At one point, he tried his luck in the oil industry. He got lucky and made a fortune when he struck oil and started Enterprise Products Partners. The company took off during the formative years of the American oil industry. To this day, the family’s main source of wealth would be the oil and gas pipelines. They continue to make billions year after year! In 2010, Dan Duncan died at the age of 77. His $10 billion estate was left to his kids Dannine, Milane, Randa, and Scott. Since then, the wealth in the family has doubled! This has been attributed to the increasing stock prices for oil and certain payouts.

The Duncans – $26B