Dr. Dutta retired from Schlumberger in May, 2015, after 15 years with the company. He held positions as Global Senior Geophysics Advisor and Chief Geoscientist there. Prior to that he worked for Shell, Arco, and BP for 25 years at various capacities, including both technical and management positions. Prior to joining the oil industry, he was a Senior Research Fellow at Harvard University. He has a Ph.D. in Physics from the University of California. Currently he is a Visiting Scholar in Stanford’s Geophysics Department.