HAMILTON, Bermuda, March 18, 2014 /PRNewswire/ -- Nabors Industries Ltd. (NYSE: NBR) announced today that former Chairman and CEO Eugene Isenberg passed away on March 16. Isenberg served as Chairman of the Board of Directors and Chief Executive Officer from 1987 until late 2011. During his 25-year tenure, Isenberg grew Nabors from bankruptcy to an S&P 500 index company with an enterprise value exceeding $9 billion. "Our thoughts and prayers go out to Gene's wife, Ronnie; his two daughters, Diane and Lynda; his beloved grandchildren and his entire family," said Chairman and CEO Anthony G. Petrello. "Gene was a pioneer for Nabors in many ways. He was very forward-thinking and all of our employees are grateful for his leadership. He was responsible for establishing the principles that steered the company from a minor player to the largest land driller in the world, a feat more remarkable since it was accomplished during one of the most challenging periods in the inherently cyclical drilling industry. His financial acumen, drive, aggressiveness—and humor—were all legendary. He was a teacher to many. His quests to succeed and his demands to perform stretched everyone, motivating them to meet his high expectations. His legacy includes the vibrant company made up of 29,000 highly skilled people that we have today." Isenberg received a bachelor's degree from the University of Massachusetts, a master's degree from Princeton University and completed the Program for Senior Executives at MIT. He began his career with Exxon Corporation in 1952 and subsequently was Chairman and principal shareholder of a steel building products company prior to joining Nabors. In 1974, New York-based Anglo Energy acquired control of Nabors Drilling. After a decade of ownership, a decline in the economy and a depressed oil and gas energy market forced Anglo into bankruptcy. Isenberg and the well-known value investor, Marty Whitman, acquired a sizable position in the company in 1986 and subsequently convinced creditors to trade debt for equity, strengthening the company's financial position. They took control of the company and changed the name from Anglo to Nabors, a brand that enjoyed a strong reputation in Alaska and Canada. In 1987, Nabors was an Alaska-based driller with 320 employees. Through a combination of well-priced strategic acquisitions and internal growth, the Company grew to where it is now – a leading worldwide service company with operations in 25 countries. Outside of Nabors, Isenberg served as a member of the Board of Governors of the National Association of Securities Dealers (NASD), the National Association of Securities Dealers Automated Quotation (NASDAQ), and the American Stock Exchange. He was also a member of the National Petroleum Council, which advises the U.S. Secretary of Energy.