THE CORPORATE LIBRARY

Related Party Transactions and Outside Related Director Information

NiSource Inc. (NI)

4/3/2006 Proxy Information

Prior to his retirement in 2003, Mr. Young served as Chairman of Bay State Gas Company, Westborough, Massachusetts. Bay State Gas Company has been a subsidiary of the Company since 1999.

Peter V. Fazio, Jr., an executive officer of the Company, is a partner in Schiff Hardin LLP, a law firm. In 2005, the Company paid Schiff Hardin LLP a retainer fee of $60,000 per month for Mr. Fazio’s services as Executive Vice President and General Counsel of the Company. Unlike other executive officers, Mr. Fazio is not an employee of the Company, and he is not eligible to participate in or receive awards under any of the Company’s bonus, long-term incentive, pension, health insurance or other benefit plans.

Mr. Peter McCausland, a director of the Company, is the Chairman and Chief Executive Officer of Airgas, Inc., a distributor of industrial, medical and specialty gases, welding equipment and safety supplies. In addition, Mr. McCausland holds in excess of 10% of the outstanding stock of Airgas, Inc. The Company and its subsidiaries use certain of the products sold by Airgas, Inc. in their business operations from time to time and purchase such products from Airgas, Inc. in the ordinary course of business on standard terms and conditions. In 2005, the Company’s total purchases of products from Airgas, Inc. were approximately $428,904.

In connection with Mr. Neale’s retirement, the Company entered into a letter agreement with Mr. Neale governing his service as a non-employee director and Chairman of the Company’s board of directors in lieu of any other benefits and compensation provided to other non-employee directors. For more information on Mr. Neale’s agreement, please see information under Change in Control and Termination Agreements above.

4/4/2005 Proxy Information

Peter V. Fazio, Jr., an executive officer of the Company, is a partner in Schiff Hardin LLP, a law firm. The Company pays Schiff Hardin LLP a retainer fee of $60,000 per month for Mr. Fazio’s services as Executive Vice President and General Counsel of the Company. Unlike other executive officers, Mr. Fazio is not an employee of the Company, and he is not eligible to participate in or receive awards under any of the Company’s bonus, long-term incentive, pension, health insurance or other benefit plans.

4/5/2004 Proxy Information

Roger A. Young was Chairman of Bay State Gas Company, a wholly owned subsidiary of NiSource, Inc., from 1996 until his retirement in October 2003. He was Chief Executive Officer of Bay State Gas Company from 1990 to 1999, President from 1981 to 1996, and Chief Operating Officer from 1981 to 1990.

Stephen P. Adik was Vice Chairman of NiSource Inc. from November 2000 to December 2003, Senior Executive Vice President from February 1999 to November 2000 and Chief Financial Officer from 1994 to November 2000.

Peter V. Fazio, Jr., an executive officer of the Company, is a partner in Schiff Hardin LLP, a law firm. The Company pays Schiff Hardin LLP a retainer fee of $60,000 per month for Mr. Fazio’s services as Executive Vice President and General Counsel of the Company. Unlike other executive officers, Mr. Fazio is not an employee of the Company, and he is not eligible to participate in or receive awards under any of the Company’s bonus, long-term incentive, pension, health insurance or other benefit plans.

4/15/2003 Proxy Information

Peter V. Fazio, Jr., an executive officer of the Company, is a partner in Schiff Hardin & Waite, a law firm. The Company pays Schiff Hardin & Waite a retainer fee of $60,000 per month for Mr. Fazio’s services as Executive Vice President and General Counsel of the Company. Unlike other executive officers, Mr. Fazio is not an employee of the Company, and he is not eligible to participate in or receive awards under any of the Company’s bonus, long-term incentive, pension, health insurance or other benefit plans.