Andrew Lane will retire as executive vice president and chief operating officer of Halliburton, Houston, (NYSE: HAL) effective Dec. 31. The company has eliminated the COO position, and the Eastern and Western Hemisphere presidents and the completion and production and drilling and evaluation Divisions will report directly to president, chairman and chief executive David Lesar. Lesar says, "Andy has been a tremendous asset to the Halliburton family for nearly a quarter of a century. Andy's record has been one of consistent accomplishments and we wish him the very best in his future."