What is grant troutt dad net worth?

As an AI language model, I do not know the exact net worth of Grant Troutt's dad. However, it is public knowledge that his father, Lee Troutt, is a businessman and investor who made his fortune in the oil and gas industry. His net worth is estimated to be around $800 million. Lee Troutt is also known for his philanthropic work, supporting various education and health causes.