Anthony G. Petrello is a businessperson who has been the head of 5 different companies and presently holds the position of Chairman, President & Chief Executive Officer at Nabors Industries Ltd., Chairman, President & Chief Executive Officer for Nabors Industries, Inc. and Co-President at Nabors Corporate Services, Inc. (both are subsidiaries of Nabors Industries Ltd.), Chairman, President, CEO & Secretary at Nabors Energy Transition Corp. and Chairman, President, CEO & Secretary at Nabors Energy Transition Corp. II. Anthony G. Petrello is also on the board of Texas Children's Hospital and Stewart & Stevenson LLC and Managing Member at Greens Road Energy LLC.

In his past career he occupied the position of Managing Partner at Baker & McKenzie LLP (New York).

He received an undergraduate degree and a graduate degree from Yale University and a graduate degree from Harvard Law School.