ONEOK Partners L.P.

Brad Dixon is president of Kansas Gas Service, the ONEOK natural gas distribution company that serves customers throughout Kansas. Dixon began his natural gas industry career with Kansas Gas Service in 1979 and has held various management positions in accounting, customer service and gas supply. He was named vice president of the company's Western Region in 2002 and became president in January of 2005. He is a member of the board of directors of the Kansas Chamber of Commerce and is active in United Way campaigns and youth athletic programs. A native of Kansas, Dixon earned a bachelor's degree in business administration in 1975 from Washburn University in Topeka.

Greg Phillips is president of Texas Gas Service, the third largest natural gas distributor in the state. He joined ONEOK in 1986 as an engineer trainee. Prior to moving into his current position, Phillips was vice president of Texas Gas Service for five years and was previously vice president of gas supply for ONEOK Field Services. Phillips is currently chairman of the board of directors of the Texas Gas Association. He serves on the community board of the United Way in Austin, and also on the boards of the Austin Public Library Foundation and the Heritage Society of Austin. Phillips earned his Bachelor of Science degree in petroleum engineering in 1985 from the University of Tulsa.

Jim Kneale is president and chief operating officer of ONEOK and ONEOK Partners. Kneale also serves as a director of ONEOK Partners. Kneale joined ONEOK in 1981 as vice president of accounting and then moved to Oklahoma Natural Gas as vice president of accounting in 1992. He served in various executive operating and finance positions until being named president of Oklahoma Natural Gas in 1997, holding that post until 1999 when he became chief financial officer of ONEOK. He serves on the boards of directors of the YMCA of Greater Tulsa, the Tulsa Area United Way, the Tulsa Metropolitan Chamber of Commerce and the Oklahoma Business Roundtable. He also serves on the board of directors of the American Gas Association and is a member of the UMB Bank Advisory Board for Oklahoma. He is a graduate of both Leadership Oklahoma and Leadership Tulsa, and a recipient of Leadership Tulsa’s Paragon Award. A native of Kansas City, Missouri, Kneale graduated from high school in Amarillo, Texas. He earned a Bachelor of Business Administration degree in accounting in 1973 from West Texas A&M in Canyon. He has completed advanced studies at Harvard University.

Patrick McDonie is president of ONEOK Energy Services, which supplies local distribution companies and industrial customers with reliable delivery of natural gas. He is responsible for marketing, storing, trading, transporting and delivery scheduling related to the company’s natural gas marketing operations. McDonie joined ONEOK in 1997 as a director of trading for ONEOK Gas Marketing Company and later served as a senior vice president and vice president of origination and new business development and as vice president of physical trading for ONEOK Energy Services. Prior to joining ONEOK, McDonie held positions of increasing responsibility in the natural gas production and marketing industry with Tristar Gas Marketing, Pacific Enterprises Oil Company and Texas Oil and Gas. McDonie is a member of the Natural Gas Association of Oklahoma and the North Texas Natural Gas and Electric Power Society. He is also involved with the Cystic Fibrosis Foundation and the American Heart Association. A native of West Virginia, McDonie earned an undergraduate degree in petroleum engineering in 1983 from Marietta College in Marietta, Ohio, and a Master of Business Administration degree in 1984 from West Virginia University in Morgantown.

" Curtis Dinan is senior vice president, chief financial officer and treasurer of ONEOK, executive vice president, chief financial officer and treasurer of ONEOK Partners, and a director of ONEOK Partners. He joined ONEOK in February 2004, after being an audit partner with both Arthur Andersen LLP and Grant Thornton LLP. Dinan is a member of the American Institute of Certified Public Accountants, the Oklahoma Society of CPAs and is an advisory board member for the Breech School of Business at Drury University. He is also a past president, treasurer and director of Tulsa Court Appointed Special Advocates, a graduate and past treasurer and director of Leadership Tulsa, past treasurer and director of the Child Abuse Network and a graduate of Leadership Oklahoma. A Missouri native, Dinan earned accounting and business administration degrees in 1989 from Drury University in Springfield, Missouri."

" John Barker is senior vice president, general counsel and assistant secretary of ONEOK, and executive vice president, general counsel and secretary of ONEOK Partners. He joined the company in December 2004 after a 30-year career with the Tulsa law firm of GableGotwals. While president of GableGotwals, Barker represented ONEOK on a regular basis for many years on business and transactional matters, mergers and acquisitions, and commercial matters including sales and acquisitions of significant assets and public securities offerings. A Vietnam veteran, Barker is a past member of the Tulsa Metro Chamber of Commerce and a past president of the Jenks Public Schools Foundation. He is past president of St. Simeon’s Episcopal Home and currently serves as trustee of the St. Simeon’s Episcopal Home Foundation. He has also served on the board and as president of the Arts and Humanities Council of Tulsa. A Missouri native, Barker earned a Bachelor of Arts degree in 1969 from the University of Missouri, Columbia, and a Juris Doctorate degree in 1974 from the University of Michigan, Ann Arbor."

Pierce Norton is executive vice president of ONEOK with responsibilities for ONEOK’s distribution companies. He is also executive vice president, natural gas, of ONEOK Partners where he has responsibilities for the partnership’s natural gas gathering and processing and pipelines business. He began his natural gas industry career in 1982 at Delhi Gas Pipeline. He later worked for American Oil and Gas and KN Energy, and was named Bear Paw Energy’s president in 2005. Bear Paw is now a subsidiary of ONEOK Partners. Norton is a board member of the Interstate Natural Gas Association of America and the Texas Pipeline Association. He is a past board member of the North Dakota Petroleum Council and the Independent Petroleum Association of Mountain States. An Alabama native, Norton earned a Bachelor of Science degree in mechanical engineering in 1982 from the University of Alabama, Tuscaloosa.

"David Roth is senior vice president of administrative services of ONEOK, where he is responsible for human resources, information technology and corporate services. Roth was a human resources executive with Western Resources and joined ONEOK when it acquired Kansas Gas Service from Western in 1997. Roth is a member of the Society for Human Resource Management and the Tulsa Area Human Resources Association. As a member of the Southern Gas Association, he has served on the human resources section managing committee. He has served as a council member of the American Cancer Society; on the board of trustees of the Tulsa Education Fund, on the board of directors for the Jenks Public Schools Foundation and as a member of the child care task force for the Tulsa Chamber of Commerce. A native of Illinois, Roth earned his Bachelor of Science degree in civil engineering in 1979 from the University of Missouri, Columbia. Roth successfully completed the Utility Management Development Program of Stone & Webster Management Consultants and the Edison Electric Institute at the Darden Graduate School of Business Administration, University of Virginia."

Mike Nelson is senior vice president of natural gas pipeline operations for ONEOK Partners, responsible for the safety, compliance, reliability, engineering and construction, financial accountability and organizational development of the partnership’s interstate and intrastate pipeline organization. Nelson began his natural gas industry career with Northern Natural Gas in 1968 and served in various operations, technical and managerial positions until being named an officer in 1997. He subsequently served as an officer for Transwestern Pipeline, Florida Gas Transmission, Midwestern Gas Transmission, Viking Gas Transmission and Northern Border Pipeline. He joined ONEOK in 2004 as part of ONEOK’s purchase of the majority general partner interest in Northern Border Partners and has held his current position with ONEOK Partners since 2006. Active in the community and the industry, he is a member of the Interstate Natural Gas Association of America’s Operations, Safety and Environment committee. Nelson serves on the Board of Directors for the Tulsa Symphony Orchestra, volunteers with the United Way, Habitat for Humanity and several other charitable and/or church groups. A native of Minnesota, Nelson attended the University of Minnesota, Duluth.

"Dan Harrison is vice president of investor relations and public affairs for ONEOK and ONEOK Partners. He is responsible for the investor relations, corporate communications, government relations and community investment functions, including the ONEOK Foundation. He joined ONEOK in 2005 from Honeywell Automation and Control Solutions where he was vice president of global communications. He has held senior management positions in corporate and financial communications and government relations with several Fortune 100 companies, including Phillips Petroleum Company and its natural gas subsidiary. Harrison has been active in professional, civic and community organizations. He is a director and a member of the executive committee of the National Association of Publicly Traded Partnerships and a member of the board of directors of the Tulsa Press Club. He was founding board member of Leadership Oklahoma and served on the board of Tulsa Opera, as well as a member of the Oklahoma Commission on State Government Performance. A native of Houston, Texas, Harrison is an honors graduate of the University of Texas at Austin, where he earned a Bachelor of Science degree in communications, and served on the College of Communications Dean’s Advisory Board for six years."

Chuck Kelley is senior vice president of energy services for ONEOK and is responsible for origination, retail and business development. He joined the company in 2000 as manager of Midwest marketing. Before coming to ONEOK, Kelley?s energy industry experience included executive positions at both Tartan Energy Resources and Panda Resources, Inc. He also held various positions with Enron Corporation. Kelley is a member of the Midwest Energy Association where he has served as director on the energy management committee. He is a past board member of the Natural Gas Association of Oklahoma and has been a volunteer with youth sports and Special Olympics. A native of Chicago, Kelley earned a Bachelor of Science degree in finance, with honors, in 1980, from DePaul University, College of Commerce in Chicago.

Eric Grimshaw is vice president, associate general counsel and corporate secretary of ONEOK. Prior to joining ONEOK in 2002, he served as vice president, general counsel and secretary at Syntroleum Corporation from 1997 to 2002. Prior to joining Syntroleum, he was a partner with the Tulsa law firm of Pray, Walker, Jackman, Williamson & Marlar. Grimshaw is a past president and chairman of Tulsa Opera. He is also a past chairman of Junior Achievement of Greater Tulsa and past secretary of the Oklahoma Alliance for Manufacturing Excellence. He is a member of the American Bar Association, Oklahoma Bar Association and Tulsa County Bar Association, and is a member of the Society of Corporate Secretaries and Governance Professionals and the National Investor Relations Institute. A Tulsa, Oklahoma, native, Grimshaw earned a Bachelor of Arts degree in 1974 from the University of Colorado, Boulder, and received his Juris Doctorate in 1977 from the University of Tulsa.

Mr. Rodriguez is president of Strategic Communications Consulting Group. Mr. Rodriguez previously served as executive vice president and as a member of the board of directors of Hunt Building Corporation, a privately held company engaged in construction and real estate development headquartered in El Paso, Texas. Prior to his three years with Hunt Building Corporation, Mr. Rodriguez spent 20 years in the electric utility industry at El Paso Electric Company, a publicly traded, investor-owned utility, where he served in various senior-level executive positions, including general counsel, senior vice president for customer and corporate services, executive vice president, and as chief operating officer. Mr. Rodriguez is a licensed attorney in Texas and New Mexico, as well as admitted to practice before the United States District Court for the Western District of Texas.

Gil J. Van Lunsen was appointed to the audit committee on March 8, 2005. Van Lunsen was a managing partner of KPMG LLP and led the firm's Tulsa, Oklahoma, office before retiring in June 2000. During his career, Van Lunsen served clients in several industries including energy. He is currently a director and audit committee chairman of Array Biopharma and Sirenza Microdevices. Additionally, Van Lunsen was a member of the ethics compliance committee of Tyson Foods, Inc. and the audit committee chairman and member of the board of directors for Hillcrest Healthcare System.