B rett Hildebrand is an American energy executive who is a co-founder of the oil and gas company, Hilcorp Energy. The company was founded in 1989 by his father, Jeffery Hildebrand, along with two partners. Hilcorp has become one of the largest privately owned oil and gas exploration and production companies in the United States. Its strategy has been to acquire and redevelop mature oil and gas fields from major oil companies, using technology to extract remaining resources efficiently.

While his father is the face and chairman of the company, Brett Hildebrand has been deeply involved in the family business, holding various leadership roles. His wealth is derived from his stake in this highly profitable and successful private energy enterprise. The company is also known for its unique corporate culture and incredibly generous bonus programs for its employees. Like his father, Brett maintains a low public profile.