El Paso Corp. has appointed Lisa A. Stewart, an Apache Corp. veteran, as president, Production and Non-regulated Operations. Stewart will oversee all of the Houston-based company's production, midstream, power, marketing and petroleum businesses. Stewart, who will assume her position on Feb. 1, 2004, is currently executive vice president, Business Development and E&P Services for Apache Corp. Stewart earned a degree in petroleum engineering from the University of Tulsa in 1981 and went to work for Cities Service Co. Since 1984 she has worked for Apache and has steadily progressed through various management positions. In her current role, she is responsible for strategic business activities, including acquisitions.
Along with Stewart's resignation, Apache Corp. has announced two promotions. John Christmann has been named vice president, business development. Kregg Olson has been named vice president, corporate reservoir engineering. Christmann joined Apache in 1997 and has served in various positions of increasing responsibility in business development and, most recently, as production manager for the Gulf Coast region. Previously, he was employed by Vastar Resources/ARCO Oil and Gas Co. Olson joined Apache in 1992, serving in various positions of increasing responsibility in corporate reservoir engineering. He has been director of technical services, which includes corporate reservoir engineering, since 1995. Olson previously was associated with Grace Petroleum Corp.
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