Lou Lung Pai () (born 23 June 1947) is a Chinese-American businessman and former Enron executive. He was CEO of Enron Energy Services from March 1997 until January 2001 and CEO of Enron Xcelerator, a venture capital division of Enron, from February 2001 until June 2001. He left Enron with over $250 million. Pai was the second-largest land owner in Colorado after he purchased the Taylor Ranch for $23 million in 1999, though he sold the property in June 2004 for $60 million. Pai was not charged with any criminal wrongdoing in the Enron scandal and exercised his Fifth Amendment rights in regard to the subsequent Enron class action lawsuits. As a result of the lawsuit, Pai forfeited $6 million due to him from Enron's insurance policy for company officers to a fund for Enron shareholders. Accounts of the Enron scandal have frequently portrayed him as a mysterious figure; a former Enron employee, interviewed in the 2005 documentary film Enron: The Smartest Guys in the Room, referred to Pai as "the invisible CEO". Background Pai was born in Nanjing, China and came to the United States at the age of two. Pai obtained both his B.S. and M.S. in economics from the University of Maryland, College Park, where his father, Shih-I Pai, was an aeronautics professor. Pai worked for the federal government in the 1970s before joining Enron. His sister is Sue Pai Yang, the first Asian American appointed to be a New Jersey Workers' Compensation judge. Enron Pai joined Enron in 1987, when it was just a regional energy supplier. He became one of (eventual) CEO Jeffrey Skilling's top lieutenants, primarily tasked with detailing and implementing Skilling's vision of transforming Enron into a de facto energy commodities-trading firm. During his Enron career, Skilling put Pai in charge of multiple Enron subsidiaries. Pai was CEO of the EES (Enron Energy Services) subsidiary from March 1997 until May 2001. The reasons for his resignation from Enron remain shrouded in mystery. Despite a reputation for being extremely introverted, taciturn, and reclusive around the office, Pai also came to symbolize the legendary lavishness and excesses of Enron's corporate culture. Though married, Pai was known to spend inordinate amounts of time during and after working hours in Houston-area strip clubs, use the Enron corporate jet for personal commuting, and charge several hundred dollars worth of lunches for himself and accompanying staff to the corporate