<ARTICLE> UT
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEETS, CONSOLIDATED STATEMENTS OF INCOME AND CONSOLIDATED
STATEMENTS OF CASH FLOWS AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<CIK> 0000081020
<NAME> PSI ENERGYLINE, INC.
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JUL-01-1999
<PERIOD-END>                               SEP-30-1999
<BOOK-VALUE>                                  PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                    2,627,867
<OTHER-PROPERTY-AND-INVEST>                          0
<TOTAL-CURRENT-ASSETS>                         688,407
<TOTAL-DEFERRED-CHARGES>                       534,861
<OTHER-ASSETS>                                 101,310
<TOTAL-ASSETS>                               3,952,445
<COMMON>                                           539
<CAPITAL-SURPLUS-PAID-IN>                      410,742
<RETAINED-EARNINGS>                            623,759
<TOTAL-COMMON-STOCKHOLDERS-EQ>               1,035,040
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                     71,911
<LONG-TERM-DEBT-NET>                           968,305
<SHORT-TERM-NOTES>                             379,862
<LONG-TERM-NOTES-PAYABLE>                            0
<COMMERCIAL-PAPER-OBLIGATIONS>                       0
<LONG-TERM-DEBT-CURRENT-PORT>                   31,822
<PREFERRED-STOCK-CURRENT>                            0
<CAPITAL-LEASE-OBLIGATIONS>                          0
<LEASES-CURRENT>                                     0
<OTHER-ITEMS-CAPITAL-AND-LIAB>               1,465,505
<TOT-CAPITALIZATION-AND-LIAB>                3,952,445
<GROSS-OPERATING-REVENUE>                      707,193
<INCOME-TAX-EXPENSE>                            10,400
<OTHER-OPERATING-EXPENSES>                     659,721
<TOTAL-OPERATING-EXPENSES>                     670,121
<OPERATING-INCOME-LOSS>                         37,072
<OTHER-INCOME-NET>                             (2,613)
<INCOME-BEFORE-INTEREST-EXPEN>                  34,459
<TOTAL-INTEREST-EXPENSE>                        19,620
<NET-INCOME>                                    14,839
<PREFERRED-STOCK-DIVIDENDS>                      1,150
<EARNINGS-AVAILABLE-FOR-COMM>                   13,689
<COMMON-STOCK-DIVIDENDS>                             0
<TOTAL-INTEREST-ON-BONDS>                       18,827
<CASH-FLOW-OPERATIONS>                          61,443
<EPS-BASIC>                                       0.00
<EPS-DILUTED>                                     0.00