John was Founder and Chairman of the Board of Growth Capital Partners, LP, a position he held from 1992 until 2011 at which point the company was acquired by Duff & Phelps and he became Vice Chairman of Corporate Finance with Duff & Phelps. He was formerly a managing director of Bankers Trust New York Corporation and Board member of BT Southwest Inc., a wholly owned subsidiary of Bankers Trust. John started his career with Mobil Oil in its exploration and production division in Colorado and Texas and continues to be active in many segments of the oil and gas business.
John has served on the board of eight public companies listed on major exchanges. He is a shareholder, Chairman of the Board and Chief Executive Officer of Willbros Group (“WG” – NYSE), a shareholder and director of Continental Resources Inc. (“CLR” – NYSE), and a shareholder and director of Cypress Energy Partners, LP (“CELP” – NYSE). He is also a shareholder and director of Premier Natural Resources and Jag Flocomponents LP. In addition, John is Chairman of the Board of Visitors at the University of Houston and is an emeritus member of the Board of Visitors of the Fuqua School of Business at Duke University. He is a former member and Chairman of the Dean’s Advisory Board of the Bauer College of Business at the University of Houston, where he developed and taught a course in leadership. John has also served as an Executive Professor at the Bauer College of Business in the Global Energy MBA (GEMBA) program. He and his wife, Darlene, manage the activities of the John & Darlene McNabb Charitable Foundation, which focuses on educating “at risk” and rural children.
John holds B.A. and M.B.A. degrees from Duke University. He served in the U.S. Air Force during the Vietnam conflict, rising to the rank of Captain and was awarded the Air Medal with three Oak Leaf Clusters and the Distinguished Flying Cross as a result of combat operations in Southeast Asia.