About Devon - Management Team 

John Richels, 57, was elected president of Devon in 2004 and joined the board of directors in 2007. He previously served as a senior vice president of Devon and president and chief executive officer of Devon’s Canadian subsidiary. Richels joined Devon through its 1998 acquisition of Canadian-based Northstar Energy Corp. Prior to joining Northstar, Richels was managing and chief operating partner of the Canadian-based national law firm, Bennett Jones. Richels previously served as a director of a number of publicly traded companies. He holds a bachelor’s degree in economics from York University and a law degree from the University of Windsor.

Marian J. Moon, 58, was elected to the position of senior vice president, Administration, in 1999. Moon is responsible for office administration, information technology, project management, records management and corporate governance. Moon has been with Devon for 24 years and served in various capacities, including manager of Corporate Finance and corporate secretary. Prior to joining Devon, Moon was employed by Amarex Inc., an Oklahoma City-based oil and natural gas production and exploration firm, where her last position was treasurer. Moon is a member of the Society of Corporate Secretaries & Governance Professionals and a graduate of Valparaiso University.

Darryl G. Smette, 61, was elected to the position of senior vice president, Marketing and Midstream, in 1999. Smette previously held the position of vice president, Marketing and Administrative Planning. His marketing background includes 15 years with Energy Reserves Group Inc./BHP Petroleum (Americas) Inc. He is also an oil and gas industry instructor, approved by the University of Texas Department of Continuing Education. Smette is a member of the Oklahoma Independent Producers Association, Natural Gas Association of Oklahoma and the American Gas Association. He holds an undergraduate degree from Minot State University and a master’s degree from Wichita State University.

R. Alan Marcum, 41, was elected to the position of senior vice president, Administration, in May 2008. Marcum has been with Devon since 1995, and most recently held the position of vice president and controller. Marcum is responsible for office adminstration, information technology, project management, records management and corporate governance. Prior to joining Devon, Marcum was employed by KPMG Peat Marwick (now KPMG LLP) as a senior auditor. He holds a Bachelor of Science degree from East Central University, majoring in accounting and finance. Marcum is a Certified Public Accountant and a member of the Oklahoma State Society of Certified Public Accountants.