<ARTICLE> UT <LEGEND> This schedule contains summary financial information extracted from the financial statements of NIPSCO Industries, Inc. for three months ended June 30, 1998, and is qualified in its entirety by reference to such financial statements. </LEGEND> <MULTIPLIER> 1,000 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> APR-01-1998 <PERIOD-END> JUN-30-1998 <BOOK-VALUE> PER-BOOK <TOTAL-NET-UTILITY-PLANT> 3,653,579 <OTHER-PROPERTY-AND-INVEST> 256,628 <TOTAL-CURRENT-ASSETS> 475,234 <TOTAL-DEFERRED-CHARGES> 158,039 <OTHER-ASSETS> 270,522 <TOTAL-ASSETS> 4,814,002 <COMMON> 414,912 <CAPITAL-SURPLUS-PAID-IN> 87,742 <RETAINED-EARNINGS> 701,235 <TOTAL-COMMON-STOCKHOLDERS-EQ> 1,203,889 <PREFERRED-MANDATORY> 57,591 <PREFERRED> 85,614 <LONG-TERM-DEBT-NET> 485,100 <SHORT-TERM-NOTES> 143,728 <LONG-TERM-NOTES-PAYABLE> 1,185,661 <COMMERCIAL-PAPER-OBLIGATIONS> 109,100 <LONG-TERM-DEBT-CURRENT-PORT> 20,733 <PREFERRED-STOCK-CURRENT> 1,828 <CAPITAL-LEASE-OBLIGATIONS> 0 <LEASES-CURRENT> 0 <OTHER-ITEMS-CAPITAL-AND-LIAB> 1,520,758 <TOT-CAPITALIZATION-AND-LIAB> 4,814,002 <GROSS-OPERATING-REVENUE> 652,408 <INCOME-TAX-EXPENSE> 15,424 <OTHER-OPERATING-EXPENSES> 573,365 <TOTAL-OPERATING-EXPENSES> 573,365 <OPERATING-INCOME-LOSS> 79,043 <OTHER-INCOME-NET> (931) <INCOME-BEFORE-INTEREST-EXPEN> 78,112 <TOTAL-INTEREST-EXPENSE> 33,243 <NET-INCOME> 29,445 <PREFERRED-STOCK-DIVIDENDS> 0 <EARNINGS-AVAILABLE-FOR-COMM> 29,445 <COMMON-STOCK-DIVIDENDS> 29,962 <TOTAL-INTEREST-ON-BONDS> 0 <CASH-FLOW-OPERATIONS> 101,777 <EPS-PRIMARY> 1.46 <EPS-DILUTED> 1.46