Agosta, 42, holds the position of Senior Vice President – Corporate Finance and Treasurer.  Prior to joining Devon in 1997, Agosta was with the management consulting firm of D. R. Payne Associates and KPMG LLC.  He holds a Bachelor’s Degree in Accounting from the University of Oklahoma, is a Certified Public Accountant and a Certified Insolvency and Restructuring Advisor.

Dobbs, 61, holds the position of Vice President – Corporate Governance and Secretary.  She joined Devon in 1999.  Prior to joining Devon, Dobbs served as the Corporate Secretary and Compliance Manager of Chesapeake Energy Corporation, an Oklahoma City independent oil and gas company.  Previously, Dobbs was with the law firm of Andrews Davis Legg Bixler Milsten & Price, Inc. and Texas International Petroleum Company.  Dobbs is a Certified Legal Assistant, an associate member of the American Bar Association, a director and member of the Society of Corporate Secretaries & Governance Professionals, and a member of the National Association of Stock Plan Professionals.

Heatly, 53, holds the position of Senior Vice President – Accounting and Chief Accounting Officer.  Prior to joining Devon in 1989, Heatly was associated with Peat Marwick Main & Co. (now KPMG LLP) in Oklahoma City with various duties, including Senior Audit Manager.  He is a Certified Public Accountant, a member of the American Institute of Certified Public Accountants and the Oklahoma Society of Certified Public Accountants.  He graduated with a Bachelor’s of Accountancy degree from the University of Oklahoma.

Kelleher, 54, holds the position of Senior Vice President - Southern Division.  Prior to joining Devon in 1999, Kelleher served as exploration manager for PennzEnergy Company.  He began his professional career in 1976 with Tenneco Oil Company and has more than 30 years of energy industry experience.  Kelleher received a Bachelor of Science degree in geological engineering from Colorado School of Mines and a Master of Science degree in Geology from West Virginia University.

Ruder, 56, holds the position of Senior Vice President – Marketing & Midstream Division.  Ruder has been with Devon since 1999, when he assumed the position of President of Thunder Creek Gas Services, a gas pipeline subsidiary located in Wyoming.  He has 35 years of energy industry experience in both domestic and international capacities.  Prior to joining Devon, Ruder held a variety of marketing and business development positions with BHP Petroleum and BHP Power, the most recent of which was Senior Vice President & General Manager of BHP Power in Brazil.  He is Vice Chairman of the board of the Natural Gas Supply Association and a member of the Natural Gas Council, Gas Processors Association and Texas Pipeline Association.  Ruder graduated with a Bachelor of Business Administration degree in Finance from Wichita State University.

Sewell, 47, holds the position of Vice President – Tax.  Prior to joining Devon in 1991, Sewell spent four years with Hadson Corporation, an independent oil and gas producer and natural gas transmission company, where she served as the tax manager from 1987 to 1991.  Sewell began her professional career in 1983 with the public accounting firm of Ernst and Whinney (now Ernst & Young).  She holds a Bachelor of Science degree from the University of Central Oklahoma, majoring in accounting.  She is a Certified Public Accountant and a member of the American Petroleum Institute and the American Exploration and Production Council.

Vaughn, 51, holds the position of Senior Vice President – Offshore Division. Prior to joining Devon in 1997, Vaughn spent 12 years with Kerr-McGee Corporation, most recently as Manager of the Rocky Mountain District. Before joining Kerr-McGee, Vaughn worked as an Operations Engineer for Amoco Production Company. He holds a Bachelor of Science degree in Petroleum Engineering from the University of Tulsa and a Bachelor of Science degree in Business Management from Oral Roberts University. He is a member of the Society of Petroleum Engineers.