100 West FifthStreet Tulsa, OK 74103-4298 P.O. Box 871Tulsa, OK 74102-0871 www.oneok.com

known to you or not, relating directly or indirectly to your employment or the separation of your employment. This release of the Company and its employees, officers, directors, and agents is a release from any and all claims, damages, lawsuits, injuries, liabilities and causes of action that you may have under any city ordinance or state, federal or common law meant to protect workers in their employment relationships. This release includes, without limitation, all claims of discrimination in employment relating to race, color, sex, religion, national origin, handicap, disability, equal pay, veteran's status and age, all claims of retaliation, including, but not limited to all claims arising under the following statutes and/or legal theories: Americans with Disabilities Act, Older Workers Benefit Protection Act, Title VII of the Civil Rights Act of 1964, the Equal Pay Act, 42 U.S.C. Sections 1981, 1981a, 1983 and 1985, Executive Orders 11246 and 11141, the Rehabilitation Act, the Civil Rights Act of 1991, the Consolidated Omnibus Budget Reconciliation Act ("COBRA"), the Family Medical Leave Act, the Fair Labor Standards Act, the Employee Retirement Income Security Act ("ERISA"), the Labor Management Relations Act, and all Unemployment Compensation laws, libel, slander, defamation, invasion of privacy, outrageous conduct, intentional or negligent infliction of emotional distress, respondent superior, negligence and negligent hiring or retention. This release applies to all such claims, whether known to you or not, arising either directly or indirectly out of your employment at the Company. You specifically understand and agree that among the claims, damages, lawsuits, injuries and causes of action that you are releasing are those that you may have against the Company under the Age Discrimination in Employment Act (29 U.S.C. Sections 621-634), and any other federal, state or local law prohibiting age discrimination in employment, whether known to you or not, including without limitation claims arising directly or indirectly out of your employment by the Company. This release and waiver of rights is granted by you on behalf of yourself, your heirs, and assigns.

You also shall keep the terms of this agreement confidential, except where such terms and conditions are required to be revealed by administrative regulation or any order of a court or administrative tribunal or as is necessary to be utilized by your attorney or other advisers.

This agreement shall represent the entire agreement between you and the Company with respect to the subject matter hereof, with the exception of such plans and agreements as are specifically referenced herein. No other representations, written or oral, with respect thereto, shall be binding upon the company. The failure of the Company to enforce any provision of this agreement shall not constitute a waiver by the Company of any right it has under this agreement or otherwise.

YOU ARE ADVISED TO CONSULT AN ATTORNEY BEFORE SIGNING THIS AGREEMENT.

If you decide to sign and return this letter to the Company on or before midnight on June 17, 2009, you have 7 days after the date of your signature to revoke it, and this agreement will not take effect until the 7 day revocation period has expired.  If you decide to revoke it, you must

communicate your revocation in written detail to me on or before midnight on June 24, 2009. Payments referred to herein will not be paid until the 7 day revocation period has expired.

The parties to this Agreement understand and agree that neither this Agreement nor any action taken hereunder is to be construed as an admission by either party of any violation of any local, state, federal, or common law.  Any such violation(s) are expressly denied by the parties.

If the foregoing terms and conditions are acceptable to you, please indicate your agreement and willingness to be bound by the terms and conditions herein by executing this agreement in the space below.