Harry J. Longwell, executive vice president of ExxonMobil Corp., will retire at the end of 2004.
Nabors Industries promoted Joe M. Hudson to the position of president, Nabors Drilling USA LP.
Multiwave Geophysical appointed Svein Kjellesvik chief executive officer.
Calvalley Petroleum Inc. named W.J. Shane McMullen C.A. chief financial officer, David A. Winter senior vice president of exploration and production, and Thomas E. Valentine corporate secretary.
Edward J. Kalthoff has been appointed vice president, land, for Innova Exploration Ltd.
Steven B. Coleman, left, has been promoted to senior...