LARRY R. GRILLOT, SPE, was appointed to Pioneer Natural Resources’ board of directors. Grillot is currently dean of the Mewbourne College of Earth and Energy at the University of Oklahoma. Before joining the university, he worked for 30 years as a geophysicist for Phillips Petroleum in a variety of technical and managerial positions in exploration and production. He has held the position of manager of exploration and production technology and services, upstream technology and project development, manager of international exploration, president, and regional manager. Grillot earned a BS in physics from Mississippi State University and MS and PhD degrees in geological sciences from Brown University.