FMC Technologies appointed Robert L. Potter president of the company. He previously served as executive vice president of energy systems with responsibility for the subsea technologies, surface technologies, and energy infrastructure business segments. Potter has been with the company since 1973 and assumes the responsibility from John T. Gremp, who remains chairman and CEO. Douglas J. Pferdehirt joined the company as executive vice president and chief operating officer. Before joining FMC Technologies, Pferdehirt worked for Schlumberger for 26 years.