 David L. Kyle Chairman
|  John W. Gibson President and Chief Executive Officer |  Robert F. Martinovich Chief Operating Officer |
 Terry K. Spencer Chief Operating Officer ONEOK Partners
|  John R. Barker Senior Vice President, General Counsel and Assistant Secretary |  Curtis L. Dinan Senior Vice President, Chief Financial Officer and Treasurer |
 Derek S. Reiners Senior Vice President and Chief Accounting Officer
|  Caron A. Lawhorn Senior Vice President, Corporate Planning and Development |  David E. Roth Senior Vice President, Administrative Services |
 Dan Harrison Vice President, Investor Relations and Public Affairs
|  Eric Grimshaw Vice President, Associate General Counsel and Corporate Secretary | |