Billionaire Profile
Dannine Avara
Global Rank
#335

Image: Public domain | via Wikimedia Commons

Dannine Avara

CEO, Enterprise Products Partners
US
Real-Time Net Worth
$9.5B
As of December 2025
Age
61
Source
Pipelines
Industry
energy
Citizenship
US

Biography

Dannine Avara, born in 1964, is an American billionaire known for her wealth derived from the energy pipeline industry. As an heir to the Duncan family fortune, she inherited a significant portion of the estate from her father, Dan Duncan, the founder of Enterprise Products Partners. Her net worth is estimated at $9.5 billion, ranking her among the wealthiest individuals globally. Avara resides in Houston, Texas, and is recognized for her philanthropic activities.

Wealth Over Time

In-Depth Profile

Early Life

Dannine Avara (née Duncan) was born in 1964 to Barbara and Dan Duncan. Her father, Dan Duncan, was the co-founder of Enterprise Products, an energy pipeline giant. She grew up in a wealthy family, having access to the best education and opportunities.

Rise to Success

Dannine Avara inherited $3.1 billion upon her father's death in 2010. She benefited from a temporary repeal of the estate tax law, becoming one of the first American billionaires to pay no estate tax since its enactment.

Key Business Strategies

While not directly involved in the management of any companies, Dannine Avara is a significant shareholder in Enterprise Products, the company founded by her father.

Philanthropy

Dannine Avara is known for her philanthropic activities and support for various charitable causes. Information regarding specific amounts and initiatives is limited in public records.

Career Milestones

2010

Inheritance

Inherited $3.1 billion upon her father's death.

Philanthropy & Social Impact

Charity

Philanthropic Activities

Unknown

Supports various charitable causes.