Robert M. Beavers, Jr.2 Senior Vice President, McDonald's Corporation (restaurants) Bruce P. Bickner2 Co-President, Monsanto Global Seed Group (agricultural genetics and technology) John H. Birdsall, III1,2 Private investor; formerly President, Birdsall, Inc. (containerized shipping)

Thomas A. Donahoe 3 Retired; formerly Partner, Price Waterhouse LLP (accounting and consulting services) Thomas L. Fisher 1 Chairman, President and Chief Executive Officer, Nicor Inc.; President and Chief Executive Officer, Nicor Gas John E. Jones 1,3,4 Retired; formerly Chairman, President and Chief Executive Officer, CBI Industries, Inc. (industrial construction)

Dennis J. Keller 4 Chairman of the Board and Chief Executive Officer, DeVry Inc. (technical and management education) Charles S. Locke 1,3,4 Retired; formerly Chairman of the Board and Chief Executive Officer, Morton International, Inc. (special- ized chemicals and salt) Sidney R. Petersen 1,4 Retired; formerly Chairman of the Board and Chief Executive Officer, Getty Oil Company (integrated petroleum)

John Rau 3 President and Chief Executive Officer, Chicago Title Corporation (financial services) Patricia A. Wier 1,2 Independent business con-sultant; formerly President, Encyclopaedia Britannica North America (publishing) * Board Committees 1 Executive Committee 2 Audit Committee 3 Committee on Directors 4 Compensation Committee

NICOR INC. Thomas L. Fisher Chairman, President and Chief Executive Officer, 54 (31) David L. Cyranoski Senior Vice President, Secretary and Treasurer, 55 (32) Thomas A. Nardi Senior Vice President Nonutility Operations and Business Development, 44 (17) George M. Behrens Vice President and Controller, 43 (7) Claudia J. Colalillo Vice President Human Resources, 49

Daniel R. Dodge Vice President Business Development, 45 Edwin M. Werneke Vice President Supply Ventures, 60 (37) NICOR GAS Thomas L. Fisher President and Chief Executive Officer, 54 (31) Philip S. Cali Senior Vice President, 51 (21) David L. Cyranoski Senior Vice President, 55 (32) Kathleen L. Halloran Senior Vice President, 46 (24)

Thomas A. Nardi Senior Vice President, 44 (17) George M. Behrens Vice President, 43 (7) David A. Cerotzke Vice President, 48 (25) Claudia J. Colalillo Vice President, 49 Daniel R. Dodge Vice President, 45 Brian C. Elliott Vice President, 55 (33) Charlie A. Thurston Vice President, 59 (36) Lonnie W. Upshaw Vice President, 45 (21) Edwin M. Werneke Vice President, 60 (37)

TROPICAL SHIPPING Rick Murrell President and Chief Executive Officer, 52 (29) Richard F. Calcote Vice President and Treasurer, 48 (2) Robert M. Chapman Vice President, 45 (10) Glen H. Fornell Vice President, 60 (37) Phil LaPlace Vice President, 50 (20) John F. Mylott Vice President, 34 ** Age and (years of service with Nicor or its subsidiaries) as of December 31, 1998.