G. Steven Farris, chairman, president and CEO of Apache Corp., has announced his retirement effective Jan. 20, 2015. Farris will continue as nonexecutive chairman of the board until May 1, 2015, at which time he will retire from the board. John J. Christmann, IV, Apache's executive vice president and COO for North America, will succeed Farris as president and CEO and will join Apache's board effective Jan. 20, 2015. Director John Lowe has been elected to succeed Farris as nonexecutive chairman.

Farris joined Apache in 1988 and has served as its CEO since 2002 and as chairman of the board since 2009. In February 2014, Farris also assumed the title of president.

Christmann has been with Apache for 18 years and has served in a variety of leadership roles. Most recently, he served as executive vice president and COO - North America, where he has been focused on aligning the right people, acreage and strategy to ensure Apache's future growth and success in North America. As the region vice president - Permian Region, from 2010 through 2013, he established Apache's Midland office and oversaw a doubling of production during his tenure. From 2004 to 2010, John served as vice president - business development where his team executed more than $6 billion in acquisitions and divestments. Prior to that, John held other operational positions within Apache, including as production manager in the company's Gulf Coast region. Prior to joining Apache, he was employed by Vastar Resources/ARCO Oil and Gas Co. in business development, crude oil marketing and various engineering and operational assignments. Christmann earned his bachelor's degree in petroleum engineering from the Colorado School of Mines and his MBA from Southern Methodist University.

Lowe has been a member of Apache's board since 2013. Lowe spent more than 30 years with ConocoPhillips and predecessor firms, where he held a series of executive positions, including executive vice president, E&P; executive vice president, commercial; and executive vice president, planning, strategy and corporate affairs.