EXHIBIT 5
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   SCHIFF HARDIN & WAITE
   7200 Sears Tower, Chicago, Illinois 60606
   (312) 258-5500
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                                           April 20, 1999


   Securities and Exchange Commission
   450 Fifth Street, N.W.
   Washington, D. C. 20549-1004

        Re:  NiSource Inc. - Registration Statement on Form S-3
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   Ladies and Gentlemen:

        We have acted as counsel to NiSource Inc., an Indiana
   corporation (the "Corporation"), in connection with the Corporation's
   filing of a Registration Statement on Form S-3 (the "Registration
   Statement") relating to the offer and sale by the Corporation of
   14,000 of its common shares, without par value (including associated
   preferred share purchase rights) (the "Common Shares"), as more fully 
   described in the Registration Statement, through the Bay State Gas 
   Company Savings Plan for Operating Employees (the "Plan").

        In this connection, we have examined such documents and have made
   such factual and legal investigations as we have deemed necessary or
   appropriate for purposes of this opinion.

        Based upon the foregoing, we are of the opinion that:  (i) the
   written provisions of the current Plan documents comply with the
   applicable provisions of the Employee Retirement Income Security Act
   of 1974; and (ii) the Common Shares have been duly authorized and,
   when issued upon payment therefor, as contemplated in the
   Registration Statement, will be legally issued, fully paid and
   nonassessable.

        We hereby consent to the filing of this opinion as an exhibit to
   the Registration Statement.

                                      Very truly yours,

                                      SCHIFF HARDIN & WAITE

                                      By: /s/ Robert J. Minkus
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                                          Robert J. Minkus