EXHIBIT 10.10 Portions of this Exhibit have been omitted pursuant to a request for confidential treatment and such portions have been filed separately with the Commission. PRIVILEGED AND CONFIDENTIAL August 28, 2002 As amended December 16, 2002 Patrick J. Mulchay Dear Pat: This Letter Agreement confirms our decision concerning your employment status. As we discussed, you will retire from your employment with NiSource Corporate Services Company. If you sign this Letter Agreement, it will constitute the mutual agreement between you and NiSource Corporate Services Company ("the Company" which, as used herein shall mean NiSource Inc. or any of its affiliates or subsidiaries, including NiSource Corporate Services Company; except in Exhibit 1, references to "NiSource" shall mean exclusively NiSource Inc.) regarding the terms of your retirement. 1. Employment Status Unless you are discharged for cause (which would include but not be limited to a breach of Paragraph 12 of this Letter Agreement), you will continue as an active employee of the Company through January 31, 2003, for all purposes, including participation in the 2002 NiSource Inc. ("NiSource") bonus plan, all Company employee benefit plans and for purposes of vesting (a) any restricted stock in NiSource owned by you and (b) any NiSource stock options owned by you. Thereafter, you will retire from the Company with the benefits set forth herein provided that you execute a release at that time in the form attached as Exhibit 1 hereto. 2. Business Transition You will not be required to report to your Company office or perform your management duties after August 28, 2002 ("Separation Date") although you may be required to render services as requested to ensure a smooth business transition between August 28 and January 31, 2003. After your Separation Date, you agree to cooperate whenever needed in the preparation for and/or defense of any litigation in which the Company is involved. If your assistance is required by the Company in such matters following the end of your consulting arrangement, you will be paid $1,000 per day and reimbursed for out-of-pocket expenses. 3. Consulting Arrangement Between February 1, 2003 and March 31, 2004, you agree to provide consulting services to the Company as requested by the CEO and COO of the Company. You will be paid a fee of $15,000.00 per month for said consulting services, provided that your services are not terminated prior to March 31, 2004 for cause or due to death or disability. These services will include but not be limited to assistance with the establishment of an RTO, review of strategic options and general matters related to electric operations. You will provide these services as and you agreed that you will be an independent contractor and you will not be eligible to participate in the Company benefit plans except as specifically provided for in this Letter Agreement. During the consulting arrangement, you will be reimbursed for appropriately documented and approved business expenses and you will be provided comparable office space. In addition, at the termination of your consulting arrangement, you will receive a lump sum payment of $230,000. 4. Change In Control You acknowledge that you are not currently owed any benefits under your Change in Control and Termination Agreement ("CIC") dated September 1, 1997. Nonetheless, as additional consideration for your execution of this Agreement, the Company agrees that, if (a) an acquisition of all the outstanding stock of NiSource (**) is closed on or before March 31, 2006, or (b) (**) then you will receive the benefits set forth in the CIC less the amounts paid to you as a result of the consulting agreement provided in Paragraph 3 of this Agreement; and provided that in lieu of any welfare benefits set forth by the terms of the CIC to which you may be entitled under the CIC and which you are not already receiving, you will receive a lump sum payment equal to the present value of such welfare benefits calculated as of the date of closing of such acquisition. You will not receive any payments under the CIC in the event all of the outstanding stock of NiSource is acquired under circumstances not specifically described in the previous sentence. In the event the CIC is triggered pursuant to this paragraph, you agree that Section 3(a)(2) of the CIC will be based on the 2002 incentive bonus compensation plan and that Sections 3(a) (3), (4), (5) and (6) of the CIC will not apply. 5. Vacation **Text has been omitted pursuant to a request for confidential treatment and such text has been filed separately with the Commission. -2- You are eligible to receive a lump sum payment representing compensation for your accrued and unused vacation as of January 31, 2003. This payment will be subject to legally-mandated deductions for Social Security and federal, state and local taxes, as well as deductions for any contributory benefit plans in which you elect to continue participation. Your vacation accrual through December 31, 2002 is 356 hours, with an additional 20 hours to be earned in January; bringing your total vacation accrual to 376 hours at the time of your retirement. 6. Retiree Medical Coverage You will be eligible to participate in the Company's Retiree Medical Plan as of February 1, 2003. You will continue to receive Ayco financial counseling and tax preparation for tax years 2003 and 2004. 7. Contingent Shares Except as provided in Paragraph 1 hereof, all contingent stock awards granted under the NiSource Inc. 1994 Long Term Incentive Plan or the 1988 Long Term Incentive Plan that have not vested as of January 31, 2003 shall vest in accordance with Section 6 of the Contingent Stock Agreements dated January 29, 2000 and January 1, 2001. 8. Long Term Incentive Program You will continue to be treated as an active employee of the Company through January 31, 2003 under the 1994 Long Term Incentive Plan, for the purpose of vesting of any restricted stock or nonqualified stock options which vest on or before January 31, 2003. You will receive the greater of your threshold or actual bonus earned under the 2002 NiSource Inc. bonus plan. 9. Indemnification You will be entitled to indemnification by the Company to the same extent as other former officers of the Company. You will also be entitled to coverage under the directors and officers liability insurance coverage maintained by the Company (as in effect from time to time) to the same extent as other former officers of the Company. 10. NiSource Re-Employment -3- If you seek re-employment with any NiSource Company and are subsequently rehired, management reserves the right to base any future severance payments on your rehire date. 11. Return of Property You agree to return to the Company any and all of its property, including but not limited to, keys, employee identification or security access cards, telephones, computing equipment, and credit cards on or before March 31, 2004. As of March 31, 2004, you will be eligible to retain ownership on a tax-paid basis of the 2001 Ford Expedition which the Company had provided you through the period of your consulting arrangement. 12. Confidentiality You acknowledge that during your employment by the Company you had access to confidential information and confidential financial data of the Company or of other NiSource companies. You further acknowledge that during your employment you may have developed confidential business information for the Company, may have made inventions, and/or may have established relationships with the Company's customers and potential customers. In order to preserve the property, inventions, business, and goodwill of the Company, you agree that during and after your employment, all knowledge and information not known to the public respecting any Company inventions, designs, products, services, machinery, methods, systems, improvements, forecasts, strategic and other plans, financial data, and other confidential information, including customer information such as names and addresses of customers and potential customers, pricing information relating to any services performed or products sold by the Company, and all information relating to the special and particular business needs of the Company or its customers and potential customers, shall remain the exclusive property of the Company and shall be regarded by you as strictly confidential and shall not be directly or indirectly used or disclosed without the Company's written permission. Moreover, you agree that upon termination of your employment, you will promptly deliver to the Company all documentation and other materials relating to the Company's business which are in your possession or under your control, including customer and potential customer lists, product lists, and marketing material, whether in written or electronic data form; and you will delete, destroy or discard all copies of such confidential information remaining in your possession. -4- You further acknowledge and agree that the Company's remedy in the form of monetary damages for any breach by you of any of the provisions of this section may be inadequate and that, in addition to any monetary damages for such breach, the Company shall be entitled to institute and maintain any appropriate proceeding or proceedings, including an action for specific performance and/or injunction. 13. Release of Claims In consideration of the payment and benefits described above, you, on behalf of yourself and your heirs, executors, and administrators, fully and finally settle, release, and waive any and all local, state (including but not limited to the Indiana Civil Rights Law), and federal civil, common law, statutory (including, but not limited to, the AGE DISCRIMINATION IN EMPLOYMENT ACT OF 1967, Title VII of the Civil Rights Act of 1964, the Americans with Disabilities Act of 1990, the Family and Medical Leave Act of 1993, and the Employee Retirement Income Security Act of 1974, as those Acts are amended), and equitable claims against the Company and NiSource, Inc. and its subsidiaries and affiliated companies, and all of the stockholders, predecessors, successors, agents, directors, officers, employees, representatives, and attorneys of NiSource, and its subsidiaries and affiliated companies, known or unknown, occurring or arising prior to you signing this Letter Agreement. You acknowledge and agree that this release is being given only in exchange for consideration to which you are not otherwise entitled. 14. Outstanding Charges You hereby agree to pay the Company any outstanding amounts owed to the Company, and further agree that by signing this agreement you hereby authorize the Company to deduct any outstanding charges from your consulting or retirement payments. 15. Governing Law This Letter Agreement shall be construed in accordance with the laws of Indiana. 16. Severability In the event that one or more of the provisions contained in this Letter Agreement shall for any reason be held to be invalid, illegal or unenforceable in any respect, the Company shall have the option to enforce the remainder of this Letter Agreement or to cancel it. 17. Non-Disclosure -5- You expressly agree to keep the terms of this Letter Agreement strictly confidential and that you will not disclose the terms of this Letter Agreement to anyone other than your spouse, your legal counsel or your tax advisor, provided that they each agree to preserve the confidentiality of the terms of this Letter Agreement. You agree not to disparage or portray the Company in a negative light. Any breach of this paragraph will be considered a material breach of the Letter Agreement. Nothing herein should be construed as a limitation on your ability to consult with your counsel concerning your rights but you agree that you will not assist or encourage others to bring claims against the Company. 18. Complete Agreement You acknowledge that in accepting this Letter Agreement, you have not relied upon any representation or promise other than those expressly stated in this Letter Agreement. This Letter Agreement constitutes the complete understanding between you and the Company relating to your separation and supersedes any and all prior agreements, promises, representations or inducements, no matter their form, concerning you employment with the Company. No promises or agreements made subsequent to the execution of this Agreement by these parties shall be binding unless reduced writing and signed by authorized representatives of these parties. 19. Important Information YOU ACKNOWLEDGE THAT THE COMPANY HAS ADVISED YOU TAKE UP TO 45 DAYS TO CONSIDER THE TERMS AND CONDITIONS OUTLINED ABOVE, AND THAT THE COMPANY HAS ALSO ADVISED YOU TO CONSULT AN ATTORNEY BEFORE SIGNING THIS LETTER AGREEMENT. YOU ALSO HAVE THE RIGHT TO REVOKE YOUR EXECUTION OF THIS LETTER AGREEMENT WITHIN 7 DAYS AFTER EXECUTION IN ACCORDANCE WITH THE NOTICE TO EMPLOYEE ATTACHED HERETO. ATTACHED TO THIS LETTER AGREEMENT AS EXHIBIT 2 ARE THE DATA REGARDING THOSE EMPLOYEES SELECTED AND NOT SELECTED FOR THIS PROGRAM. THE DATA INCLUDE A DESCRIPTION OF THE UNITS, JOB TITLES AND AGES OF ALL EMPLOYEES SELECTED FOR THE PROGRAM, AND THE AGES AND JOB TITLES OF EMPLOYEES IN THE AFFECTED UNITS NOT SELECTED FOR THE PROGRAM. IF YOU ACCEPT THE TERMS AND CONDITIONS OUTLINED ABOVE, INCLUDING PARAGRAPH 13, PLEASE SIGN BOTH COPIES OF THIS LETTER AGREEMENT IN THE SPACE PROVIDED BELOW TO SIGNIFY YOUR ACCEPTANCE, AND RETURN BOTH COPIES TO LANETTE ZIMMERMAN BY DECEMBER 18, 2002, ON WHICH DATE THIS OFFER WILL EXPIRE IF NOT -6- ACCEPTED. IF YOU ACCEPT THE TERMS AND CONDITIONS OUTLINED ABOVE, YOUR ACCEPTANCE IS IN LIEU OF ANY AND ALL OTHER SEVERANCE PROGRAMS OFFERED BY THE COMPANY AND YOU KNOWINGLY AND VOLUNTARILY WAIVE PARTICIPATION IN ALL OTHER SEVERANCE PROGRAMS OFFERED BY THE COMPANY. YOU ACKNOWLEDGE THAT THE COMPANY'S PERFORMANCE UNDER THIS AGREEMENT CONSTITUTES FULL AND COMPLETE PAYMENT OF ALL AMOUNTS DUE TO YOU FROM THE COMPANY AND CONSTITUTES ADDITIONAL CONSIDERATION TO WHICH YOU ARE NOT OTHERWISE ENTITLED. Very truly yours, /s/ Gary L. Neale Gary L. Neale Accepted: /s/ Patrick J. Mulchay Date: 12/22/02 --------------------------- --------------------- Patrick J. Mulchay Witness: /s/ Denisa R.L. Margraf Date: 12/22/02 ------------------------ ---------------------- -7-