NORTHERN INDIANA PUBLIC SERVICE CO
10-K, 1998-03-30
ELECTRIC & OTHER SERVICES COMBINED
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<PAGE> 
SECURITIES AND EXCHANGE COMMISSION 
Washington, D. C. 20549 
 
FORM 10-K 
 
X   Annual Report Pursuant to Section 13 or 15(d) 
    of the Securities Exchange Act of 1934 
         
    For the fiscal year ended December 31, 1997 
 
                          OR 
 
()  Transition Report Pursuant to Section 13 or 15(d) 
    of the Securities Exchange Act of 1934 
 
    For the transition period from ________________ to ________________ 
 
Commission file number 1-4125 
 
NORTHERN INDIANA PUBLIC SERVICE COMPANY 
(Exact name of registrant as specified in its charter) 
 
                   Indiana                       35-0552990 
        (State or other jurisdiction of       (I.R.S. Employer 
        incorporation or organization)        Identification No.) 
 
        5265 Hohman Avenue, Hammond, Indiana            46320-1775 
        (Address of principal executive offices)        (Zip Code) 
 
        Registrant's telephone number, including area code: (219) 853-5200 
 
Securities registered pursuant to Section 12(b) of the Act: 
 
                                                 Name of each exchange 
            Title of each class                   on which registered 
           ---------------------                 --------------------- 
Series A Cumulative Preferred - No Par Value             New York 
4-1/4% Cumulative Preferred - $100 Par Value             American 
 
Securities registered pursuant to Section 12(g) of the Act: 
 
Cumulative Preferred Stock - $100 Par Value 
(4-1/2%, 4.22%, 4.88%, 7.44% and 7.50% Series) 
 
        Indicate by check mark whether the registrant (1) has filed all 
reports required to be filed by Section 13 or 15(d) of the Securities 
Exchange Act of 1934 during the preceding 12 months, (2) has been subject 
to such filing requirements for the past 90 days. 
                                        
                       Yes    X      No 
                           --------    -------- 
 
      Indicate by check mark if disclosure of delinquent filers pursuant 
to Item 405 of Regulation S-K is not contained herein, and will not 
be contained, to the best of registrant's knowledge, in definitive proxy 
or information statements incorporated by reference in Part III of this 
Form 10-K or any amendment to this Form 10-K. (X) 
 
      As of February 27, 1998, 73,282,258 shares of the registrant's 
Common Shares, no par value, were issued and outstanding, all held 
beneficially and of record by NIPSCO Industries, Inc. 
 
DOCUMENTS INCORPORATED BY REFERENCE 
None 
 
<PAGE> 
NORTHERN INDIANA PUBLIC SERVICE COMPANY 
Form 10-K 
                                                  
<TABLE>                                               
<CAPTION> 
Table of Contents 
                                                              Page 
                                                              ====   
 
<S>         <C>                                               <C> 
PART I 
 Item 1     Business                                            2 
      2     Properties                                          8 
      3     Legal Proceedings                                   9 
      4     Submission of Matters to a Vote 
             of Security Holders                                9

PART II 
 Item 5     Market for the Registrant's Common 
             Equity and Related Shareholder Matters             9 
      6     Selected Financial Data                             9 
      7     Management's Discussion and Analysis of 
             Financial Condition and Results of Operation       9
      7A    Quantitative and Qualitative Disclosures
             About Market Risk                                 17 
      8     Financial Statements and Supplementary Data        17 
      9     Changes in and Disagreements with Accountants 
             on Accounting and Financial Disclosure            49 
 
PART III 
Item 10     Directors and Executive Officers of 
             the Registrant                                    49 
     11     Executive Compensation                             52 
     12     Security Ownership of Certain Beneficial 
             Owners and Management                             60 
     13     Certain Relationships and Related Transactions     60 
 
PART IV 
Item 14     Exhibits, Financial Statement Schedules            60 
             and Reports on Form 8-K                            
 
SIGNATURES                                                     63  
</TABLE> 
 
<PAGE> 
NORTHERN INDIANA PUBLIC SERVICE COMPANY 
Part I 
 
ITEM 1. BUSINESS. 
   
      Northern Indiana Public Service Company (Northern Indiana) is a public
utility operating company, incorporated in Indiana on August 2, 1912, engaged in
supplying natural gas and electric energy to the public.  It operates in 30
counties in the northern part of Indiana, serving an area of about 12,000 square
miles with a population of approximately 2,200,000.  At December 31, 1997,
Northern Indiana served approximately 662,500 customers with gas and
approximately 416,300 customers with electricity. 
 
      See "Segments of Business" in the Notes to Consolidated Financial 
Statements regarding financial information about industry segments. 
 
      HOLDING COMPANY STRUCTURE.  Effective March 3, 1988, Northern Indiana
became a subsidiary of Industries, Inc., an Indiana corporation
(Industries). 
     
      The parent company of Northern Indiana, Industries, Inc. is party to an
Agreement and Plan of Merger with Bay State Gas Company (Bay State), dated as
of December 18, 1997 and amended and restated as of March 4, 1998 (the Merger
Agreement).  The Merger Agreement provides for the acquisition by Industries
of Bay State, subject to approval by the common shareholders of Bay State,
various regulatory approvals and the waiver or satisfaction of certain other
conditions.  The Merger Agreement provides for the merger of Bay State with
and into a new wholly-owned subsidiary of Industries (the Preferred Merger).
However, the Merger Agreement also provides that an alternative merger structure
(the Alternative Merger) may be used instead of the Preferred Merger.  Under
the Alternative Merger, Bay State would be merged with and into Northern Indiana
followed immediately by the merger of Bay State's wholly-owned utility
subsidiary, Northern Utilities, Inc. into Northern Indiana.  For further
information regarding the Merger Agreement, see Exhibit 2.1 to Industries'
Annual Report on Form 10-K for the year ended December 31, 1997.  

      ELECTRIC OPERATIONS.  Northern Indiana owns and operates four coal fired
electric generating stations with net capabilities of 3,179,000 kilowatts (kw),
two hydroelectric generating plants with net capabilities of 10,000 kw, and four
gas fired combustion turbine generating units with net capabilities of 203,000
kw, for a total system net capability of 3,392,000 kw.  During the year ended
December 31, 1997, Northern Indiana generated 91.8% and purchased 8.2% of its
electric requirements. 
 
      Northern Indiana's 1997 electric control area peak load (the highest
level of electrical utility usage in the control area) of 3,020,920 kw, which
includes Northern Indiana, Wabash Valley Power Association, Inc. (WVPA) and
Indiana Municipal Power Agency (IMPA) for which Northern Indiana controls
interchange operations, was set on July 14, 1997.  Northern Indiana's all-time
electric control area peak load of 3,161,200 kw was set on July 14, 1995.
Northern Indiana's 1997 internal peak load, which excludes WVPA and IMPA, was
2,758,920 kw set on July 14, 1997.  Northern Indiana's all-time internal peak
load of 2,888,450 kw was set on August 6, 1996. 
 
      Northern Indiana's electric system is interconnected with that of American
Electric Power, ComEd, Cinergy Services, Inc., Consumers Energy and Central
Illinois Public Service Company.  Electric energy is purchased from, sold to, or
exchanged with various other utilities and power marketers under Northern
Indiana's power sales and open access transmission tariffs. 
 
      Northern Indiana provides WVPA with transmission and distribution service,
operating reserve requirements and capacity deficiency service, and provides
IMPA with transmission service, operating reserve requirements and capacity
deficiency service, in Northern Indiana's control area.  Northern Indiana also
engages in sales and services under interconnection agreements with WVPA and
IMPA. 
 
      WVPA provides service to 12 Rural Electric Membership Corporations 
(REMC's) located in Northern Indiana's control area.  IMPA provides service to
the municipal electric system of the city of Rensselaer located in Northern
Indiana's control area. 
 
      Northern Indiana and WVPA have executed a supplemental agreement for unit
peaking capacity and energy.  Unit peaking capacity is the capacity used to
serve peak demand from a specific peaking generating unit.  Pursuant to this
agreement, which runs through December, 2001, WVPA purchases 90,000 kw of
capacity per month. 
 
      Northern Indiana has the Town of Argos as a full requirement customer and
provides network integration service to seven other municipal wholesale
customers.  Prior to January 31, 1998, Northern Indiana had full requirement
contracts with eight municipal wholesale customers.
 
      Northern Indiana is a member of the East Central Area Reliability 
Coordination Agreement (ECAR).  ECAR is one of nine regional electric 
reliability councils established to coordinate planning and operations of 
member companies regionally and nationally. 
 
      FUEL SUPPLY.  The generating units of Northern Indiana are located at 
Bailly, Mitchell, Michigan City and Schahfer Generating Stations.  Northern 
Indiana's 13 steam generating units have a net capability of 3,179,000 kw.
Coal is the primary source of fuel for all units, except for three, which
utilize natural gas.  In addition, Northern Indiana's four combustion turbine
generating units with a net capability to 203,000 kw are fired by gas.  Fuel
requirements for Northern Indiana's generation for 1997 were supplied as
follows: 
 
<TABLE> 
<S>                <C> 
Coal               98.7% 
Natural gas         1.3% 
 
</TABLE> 
 
      In 1997, Northern Indiana used approximately 8.4 million tons of coal 
at its generating stations.  Northern Indiana has established a normal level 
of coal stock which provides adequate fuel supply during the year under all 
conditions. 
 
      Annual coal requirements for Northern Indiana's electric generating 
units through 2002 are estimated to range from 8.5 million tons to 9.3 
million tons, depending from year to year upon anticipated sales levels, 
scheduled maintenance and other variables.  These requirements are being or 
will be met in part under long-term contracts as follows: 
 
<TABLE> 
<CAPTION> 
      MILLION TONS/YEAR       SULFUR CONTENT       EXPIRATION 
      =================       ==============       ========== 
 
      <S>                     <C>                  <C> 
             1.3 (a)               Low                2001 
             1.8 (b)               Low                1999
             1.0 (c)               Low                2001 
             0.3                   Low                2001
             0.3 (d)               Low                2000
             0.75(e)               High               2003
             1.0 (f)               High               2002
             0.75                  High               1999
              


<FN> 
(a) 1.8 million tons in 1998. 
(b) 1.225 million tons in 1999. Plus or minus 10% per contract year.
(c) Plus or minus 20% per contract year.
(d) 2000 - option year, can terminate 12/31/1999. 
(e) Tentative new contract, 0.25 million in 1998.  Plus or minus 10% per
    contract year. 
(f) Tentative new contract, 1.5 million in 1998.  Plus 20% per contract year.
    Option years in 2001 and 2002 can terminate 12/31/2000.


</FN> 
</TABLE> 
 
      The average cost of coal consumed in 1997 was $27.42 per ton or 15.43 
mills per kilowatt-hour (kwh) generated as compared to $27.50 per ton or 
15.79 mills per kwh generated in 1996.  Northern Indiana's forecasts indicate
that its coal costs will be slightly lower over the next two years.
 
      COAL RESERVES.  Included in the previous table of coal contracts is a 
coal mining contract with Cyprus Shoshone Coal Corporation (Cyprus) under 
which Cyprus is mining Northern Indiana's coal reserves in the Cyprus mine 
through the year 2001.  The costs of the reserves are being recovered through
the rate-making process as such coal reserves are used to produce electricity.
 
      FUEL ADJUSTMENT CLAUSE.  Northern Indiana adjusts metered electric rates
through operation of a fuel adjustment clause to reflect changes in fuel costs.
See "Summary of Significant Accounting Policies-Fuel Adjustment Clause" in the
Notes to Consolidated Financial Statements. 
 
      GAS OPERATIONS.  Northern Indiana supplies natural gas of about 1,000 
British thermal units (Btu) per cubic foot.  In a 24-hour period ended 
January 17, 1997, Northern Indiana's 1997 maximum day sendout (the maximum
amount of gas delivered through Northern Indiana's distribution system to its
end customers) was 1.6 million dekatherms (dth).  Northern Indiana's total
gas send-out for 1997 was 292.6 million dth, compared to 286.1 million dth in
1996. 
 
      Agreements have been negotiated with natural gas suppliers to replace 
former pipeline supplier contracts pursuant to the requirements of FERC 
Order No. 636 (See "FERC Order No. 636" in the Notes to Consolidated Financial
Statements).  Northern Indiana also has producer agreements which allow for the
purchase of gas either from gas marketers or producers. 

      Northern Indiana has firm transportation agreements with pipelines, which
allow Northern Indiana to move its gas through the pipelines' transmission
systems.  In 1997, all of the gas supplied by Northern Indiana was transported
by ANR Pipeline Company (ANR), Crossroads Pipeline Company (Crossroads) - a
subsidiary of Industries, Midwestern Gas Transmission Company (Midwestern),
Natural Gas Pipeline Company of America (Natural), Panhandle Eastern Pipe Line
Company (Panhandle), Tennessee Gas Pipeline Company (Tennessee) and Trunkline
Gas Company (Trunkline).  The transportation rates of Crossroads, and the
transportation and storage rates of ANR, Midwestern, Natural, Panhandle,
Tennessee and Trunkline to Northern Indiana, are subject to change in accordance
with rate proceedings filed with the Federal Energy Regulatory Commission
(FERC). 
 
      Approximately 69% of Northern Indiana's 1997 gas supply was purchased on
the spot market, generally on less than 30-day agreements.  The average price
per dth (including FERC Order No. 636 transition charges) in 1997 was $3.18,
compared to $3.12 in 1996, and the average cost of purchased gas, after
adjustment for transition charges billed to transport customers, was $3.08 per
dth as compared to $3.02 per dth in 1996. 
 
      Northern Indiana has a curtailment plan (a plan which outlines service
to be curtailed in the event of limited gas supply) approved by the Indiana 
Utility Regulatory Commission (Commission).  Effective on August 11, 1981, 
the plan allows unrestricted gas sales by Northern Indiana.  There were no 
firm sales curtailments in 1997 and none are expected during 1998. 
 
      Northern Indiana operates an underground gas storage field at Royal 
Center, Indiana, which currently has a storage capacity of 6.75 million dth. 
Withdrawals have been made in the 1997-1998 winter of up to 109,036 dth per 
day.  In addition, Northern Indiana has several gas storage service
agreements which make possible the withdrawal of substantial quantities of 
gas from other storage facilities.  All of the storage agreements have 
limitations on the volume and timing of daily withdrawals.  These contracts 
provide in the aggregate for approximately 26.6 million dth of annual stored 
volume and allow for approximately 551,000 dth of maximum daily withdrawal. 
 
      Northern Indiana has a liquefied natural gas plant in LaPorte County 
which is designed for peak shaving (the process of supplementing gas supply
during periods of high demand) and has the following capacities: maximum storage
of 4 million dth; maximum liquefaction rate (gas to liquid), 20,000 dth per day;
maximum vaporization rate (output to distribution system), 300,000 dth per day. 
 
      GAS COST ADJUSTMENT CLAUSE.  Metered gas sales are adjusted to reflect
the cost of purchased gas, contracted gas storage and storage transportation
charges.  See "Summary of Significant Accounting Policies-Gas Cost Adjustment
Clause" in the Notes to Consolidated Financial Statements. 
 
      REGULATION.  Northern Indiana is subject to regulation by the Commission
as to rates, service, accounts, issuance of securities, and in other respects.
See "FERC Order No. 636" in the Notes to Consolidated Financial Statements.  It
is also subject to limited regulation by local public authorities. 
 
      In 1997, about 4% of Northern Indiana's electric revenues were derived 
from electric service it furnished at wholesale in interstate commerce to 
other utility companies, municipalities and WVPA (see "Item 1. Business- 
Electric Operations" regarding WVPA).  Northern Indiana's wholesale rates 
and operations are subject to the jurisdiction of the FERC.  FERC jurisdiction
does not extend to the issuance of securities by Northern Indiana, which are
regulated by the Commission.  The FERC on October 21, 1954, declared Northern
Indiana exempt from the provisions of the Natural Gas Act. 
 
      RATE MATTERS.  For information regarding Northern Indiana's gas rates 
and gas transition costs, see "FERC Order No. 636" in the Notes to 
Consolidated Financial Statements. 
                                  
      Northern Indiana filed a petition for an Alternative Regulatory Plan 
(ARP) with the Commission on November 29, 1995.  Following negotiation and
settlement with major intervenors, Northern Indiana submitted a modified ARP
to the Commission on May 9, 1997.  In its modified ARP, Northern Indiana
proposed to implement new rates and services that would include, among other
things, further unbundling of services for additional customer classes,
increased customer choice for sources of natural gas supply, negotiated
services and prices, an incentive gas cost mechanism and a price protection
program.  On October 8, 1997, the Commission issued an order approving, in
all respects, the modified ARP which became effective November 1, 1997.  The
first pilot program was launched in January 1998 and the first gas volumes
will flow under this program by April 1, 1998.  ERI Services, Inc. and Enron
Capital and Trade Resources Corp. filed Petitions for Rehearing of the
Commission Order, and during the first quarter of 1998 the Commission denied
such petition.
    
      COMPETITION.

      ELECTRIC.  The electric energy generation, transmission and distribution
business is in a period of fundamental change in the manner in which customers
obtain, and energy suppliers provide, energy services.  These changes are
attributable to changes in technology, the relaxation of regulatory barriers to 
utilities' respective service territories and efforts to change the manner in
which electric utilities are regulated.  Federal law and regulations have been
amended to provide for open transmission system access, and various states are
considering, or have adopted, new regulatory structures to allow access by some
or all customers to electric suppliers in addition to their local electric
utility. 
    
      Currently, electric service territories within the State of Indiana are
assigned to the existing suppliers, and boundaries of new territories outside
existing municipalities are assigned to the utility having the nearest existing
electric distribution lines.  Only existing municipal electric utilities may
expand their service areas and then only into areas that have been annexed by
the municipality, subject to the approval of the Commission and certain other
conditions.  In municipalities where Northern Indiana renders electric service
to the general public as a public utility, no other utility renders electric or
gas service, except in Angola, DeMotte, Rome City, Wanatah and Waterloo.  In
localities where Northern Indiana renders gas service only, it competes with
electric utilities, municipal or private, for the business for which they render
alternative electric service. 
 
      In both January 1997 and 1998, legislation was introduced in the Indiana
General Assembly addressing electric utility competition and deregulation.  The
proposed legislation was not adopted but similar legislation may be reintroduced
in the future.  It is not possible to predict the ultimate effect which
competition, subsequent to the passage of such legislation would have on
Northern Indiana's future earnings.  See "Competition" in the Management's
Discussion and Analysis of Financial Condition and Results of Operations.
   
      GAS.  As a result of FERC Order No. 636, Northern Indiana is also subject
to competition for gas sales to industrial customers through the ability of
these customers, under Northern Indiana's rate provisions, to purchase gas
directly from suppliers other than Northern Indiana, and have Northern Indiana
transport the gas to them.  During 1997, gas transportation represented 55% of
Northern Indiana's total gas sendout. 
 
      Indiana law requires Commission approval before a gas customer of a 
utility may bypass the utility and make other arrangements for gas service.  
Any entity which transports gas from outside Indiana for direct sale or 
delivery to itself or other end-users within the state will be considered a 
public utility and must obtain a necessity certificate from the Commission 
in order to engage in such activities.  See "Competition" in the
Management's Discussion and Analysis of Financial Condition and Results
of Operations.
 
      EMPLOYEE RELATIONS.  Northern Indiana had 3,267 employees at  
December 31, 1997.  Approximately 72% of Northern Indiana's employees
(physical and clerical workers) are represented by two local unions of the
United Steelworkers of America, AFL-CIO-CLC. 

      ENVIRONMENTAL MATTERS.  Northern Indiana has an ongoing program to
remain aware of laws and regulations involved with hazardous waste and other 
environmental matters. It is Northern Indiana's intent to continue to evaluate
its facilities and properties with respect to these rules and identify any
sites that would require corrective action.  Northern Indiana has recorded a
reserve of approximately $19 million to cover probable corrective actions as
of December 31, 1997; however, environmental regulations and remediation
techniques are subject to future change.  The ultimate cost could be
significant, depending on the extent of corrective actions required.  Based
upon investigations and management's understanding of current laws and
regulations, Northern Indiana believes that any corrective actions required, 
after consideration of insurance coverages and contributions from other 
potentially responsible parties, will not have a significant impact on the 
results of operations or financial position of Northern Indiana.  It is not
possible for Northern Indiana to predict the scope, enforceability or financial
impact of other environmental regulations or standards which may be established
in the future. 
  
      Northern Indiana is subject to regulation with regard to environmental 
matters by various federal, state and local authorities.  Northern Indiana 
cannot forecast the effect of all such regulation upon its generation, 
transmission and other facilities, or its operations.  Northern Indiana intends
to comply with all applicable governmental requirements and has adopted an
environmental policy that fosters the pursuit of proactive environmental
programs and management. 
 
      The application of federal and state restrictions to protect the 
environment, including but not limited to those described below, involves
or may involve review, certification or issuance of permits by various federal,
state, and local authorities.  Such restrictions, particularly in regard to
emissions into the air and water, and disposal of solid wastes, may impact the
operation of Northern Indiana's facilities, and may also require substantial
investments.
 
      Northern Indiana's total capital expenditures from January 1, 1993, 
through December 31, 1997 for pollution control facilities were approximately
$149 million and were financed in part by the sale of Northern Indiana's
Pollution Control Notes and Bonds-Jasper County.  Northern Indiana anticipates
expenditures of approximately $15 million for pollution control equipment in
the 1998-2002 period which includes anticipated expenditures of $6 million in
1998 and $9 million in 1999.  See "Environmental Matters" in the Notes to
Consolidated Financial Statements.
 
      YEAR 2000 COSTS.  For a discussion of year 2000 costs see Management's
Discussion and Analysis of Financial Condition and Results of Operations-
Year 2000 Cost.

      FORWARD LOOKING STATEMENTS.  This report contains forward looking
statements within the meaning of the securities laws.  See Management's
Discussion and Analysis of Financial Condition and Results of Operations-
Forward Looking Statements.

ITEM 2. PROPERTIES. 
 
      The physical properties of Northern Indiana are located in the State 
of Indiana. 
 
      ELECTRIC.  Northern Indiana owns and operates four coal fired electric 
generating stations with net capabilities of 3,179,000 kw, two hydroelectric 
generating plants with net capabilities of 10,000 kw, and four gas fired 
combustion turbine generating units with net capabilities of 203,000 kw, for 
a total system net capability of 3,392,000 kw. 
 
      Northern Indiana has 292 substations with an aggregate transformer 
capacity of 23,030,500 kva.  Its transmission system with voltages from 
34,500 to 345,000 consists of 3,053 circuit miles of line.  The electric 
distribution system extends into 21 counties and consists of 7,835 circuit 
miles of overhead and 1,423 cable miles of underground primary distribution 
lines operating at various voltages from 2,400 to 12,500 volts.  Northern 
Indiana has distribution transformers having an aggregate capacity of 
11,422,999 kva and 438,590 electric watt-hour meters. 
 
      GAS.  Northern Indiana has an underground storage field at Royal Center
and a liquefied natural gas plant in LaPorte County all of which are described
under "Item 1. Business-Gas Operations."  Northern Indiana has 13,368 miles of
gas mains. 
   
      CHARACTER OF OWNERSHIP.  The properties of Northern Indiana are subject to
the lien of its First Mortgage Indenture.  The principal properties are held in
fee and are free from other encumbrances, subject to minor exceptions, none of
which is of such a nature as to substantially impair the usefulness of such
properties.  All properties are subject to liens for taxes, assessments and
undetermined charges (if any) incidental to construction, which it is Northern
Indiana's practice regularly to pay, as and when due, unless contested in good
faith. In general, the electric and gas lines and mains are located on land not
owned in fee but are covered by necessary consents of various governmental
authorities or by appropriate rights obtained from owners of private property.
Northern Indiana does not, however, generally have specific easements from the
owners of the property adjacent to public highways over, upon, or under which
its electric and gas lines are located.  At the time each of the principal
properties was purchased a title search was made.  In general, no examination of
titles as to rights-of-way for electric and gas lines and mains was made, other
than examination, in certain cases, to verify the grantors' ownership and the
lien status thereof. 
 
ITEM 3. LEGAL PROCEEDINGS. 
 
      Northern Indiana is a party to various pending proceedings, including 
suits and claims against it for personal injury, death and property damage.
Such proceedings and suits, and the amounts involved are routine litigation and
proceedings for the kind of business conducted by Northern Indiana, except as
set forth above under "Environmental Matters," in the Notes to Consolidated
Financial Statements.  To the knowledge of Northern Indiana no other material
legal proceedings against Northern Indiana or its subsidiaries are contemplated
by governmental authorities or other parties.   
 
ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS. 
 
      None 
 
PART II 
 
ITEM 5. MARKET FOR THE REGISTRANT'S COMMON EQUITY AND RELATED SHAREHOLDER 
MATTERS. 
 
      Northern Indiana's common shares are wholly-owned by Industries. 
 
      The following limitations on payment of dividends and issuance of 
preferred stock apply to Northern Indiana: 
 
      When any bonds are outstanding under its First Mortgage Indenture, 
Northern Indiana may not pay cash dividends on its stock (other than 
preferred or preference stock) or purchase or retire common shares, except 
out of earned surplus or net profits computed as required under the 
provisions of the maintenance and renewal fund.  At December 31, 1997, 
Northern Indiana had approximately $146.3 million of retained earnings 
(earned surplus) available for the payment of dividends.  Future common 
share dividends by Northern Indiana will depend upon adequate retained 
earnings, adequate future earnings and the absence of adverse developments. 
 
      So long as any shares of Northern Indiana's cumulative preferred stock 
are outstanding, no cash dividends shall be paid on its common shares in 
excess of 75% of the net income available therefore for the preceding 
calendar year unless the aggregate of the capital applicable to stocks 
subordinate as to assets and dividends to the cumulative preferred stock 
plus the surplus, after giving effect to such dividends, would equal or 
exceed 25% of the sum of all obligations evidenced by bonds, notes, 
debentures or other securities, plus the total capital and surplus.  At 
December 31, 1997, the sum of the capital applicable to stocks subordinate 
to the cumulative preferred stock plus the surplus was equal to 42% of the 
total capitalization including surplus.  
 
      In connection with the foregoing discussion, see "Common Share 
Dividend" in the Notes to Consolidated Financial Statements. 
 
ITEM 6. SELECTED FINANCIAL DATA. 
 
<TABLE> 
<CAPTION> 
                                       Year Ended December 31, 
                                       (Dollars in thousands) 
 
                       1997       1996       1995       1994       1993 
                    ========== ========== ========== ========== ========== 
<S>                 <C>        <C>        <C>        <C>        <C> 
Operating revenues  $1,752,382 $1,754,105 $1,664,278 $1,613,995 $1,619,623 
 
Net income          $  196,620 $  197,310 $  194,321 $  179,903 $  172,104
 
Total assets        $3,674,914 $3,774,280 $3,606,199 $3,624,311 $3,613,235 
 
Long-term 
 obligations and 
 redeemable 
 preferred stock    $1,138,337 $1,053,254 $1,122,392 $1,131,408 $1,147,536 
 
Cash dividends 
 declared on 
 common shares      $  187,775 $  187,450 $  185,725 $  168,815 $  165,299 
 
</TABLE>        
                                             
ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND 
RESULTS OF OPERATIONS.
  
      NET INCOME.  In 1997, net income of Northern Indiana decreased to 
$196.6 million, compared to $197.3 million for 1996.  In 1995, net income 
was $194.3 million. 
 
      See Notes to Consolidated Financial Statements for Segments of 
Business regarding the revenue and utility operating income derived from  
the delivery of gas and electricity. 
 
      REVENUES.  Operating revenues in 1997 decreased $1.7 million, or 0.1%,
from 1996.  Operating revenues in 1996 increased $89.8 million, or 5.4%, from 
1995. 
 
      During 1997, gas deliveries in dekatherms (dth), which include 
transportation services, increased 2.3%.  Gas sales levels in 1997 remained
relatively unchanged from 1996.  Gas transportation services increased 
3.4% mainly due to increased deliveries of gas transported for others.
Northern Indiana had approximately 662,500 gas customers at December 31, 1997.
During 1996, gas deliveries increased 3.6% over 1995.  Gas sales in 1996
increased 14.7% due to higher sales to residential and commercial customers as
result of colder weather during the first quarter of 1996, and increased sales
to industrial and wholesale customers.  Gas transportation services decreased
4.0% mainly due to decreased deliveries to industrial customers. 
 
      Gas revenues were $735.3 million in 1997, an increase of $3.4 million 
from 1996.  The increase in gas revenues was mainly due to increased sales
to wholesale customers, increased gas costs per dth and increased deliveries
of gas transported for others, partially offset by decreased sales to
residential and commercial customers and decreased gas transition costs.  Gas
revenues were $731.9 million in 1996, an increase of $98.5 million from 1995.
The increase in gas revenues was mainly due to increased sales to residential
and commercial customers as a result of colder weather during the first
quarter of 1996, increased sales to industrial and wholesale customers, and
increased gas costs per dth, which were partially offset by decreased gas
transition costs.  The large commercial and industrial customers continued to
utilize transportation services provided by Northern Indiana.  Gas
transportation customers purchase much of their gas directly from producers
and marketers and then pay a transportation fee to have their gas delivered
over Northern Indiana's system.  Northern Indiana transported 160.4, 155.2 and
161.7 million dth in 1997, 1996 and 1995, respectively. 
 
      In 1997, sales of electricity in kilowatt-hours (kwh) decreased 4.5% 
from 1996 mainly due to decreased sales to wholesale and industrial customers
partially offset by increased sales to residential and commercial customers.
Industrial sales decreased during the period as a result of cogeneration
projects at two of Northern Indiana's major industrial customers coming
online during the period.  Northern Indiana had approximately 416,300 electric
customers at December 31, 1997.  In 1996, sales of electricity in kilowatt-
hours (kwh) decreased 1.1% from 1995 mainly due to decreased sales to
residential customers due to cooler summer weather in 1996 and decreased sales
to industrial customers due to operational difficulties at several major
industrial customers, which were partially offset by increased sales to
commercial and wholesale customers.  
 
      In 1997, electric revenues were $1.017 billion, a decrease of $5.1 
million from 1996.  The decrease in electric revenues was mainly due to 
decreased sales to industrial customers, partially offset by increased sales
to residential and commercial customers and increased revenues related to
wholesale transactions.  Industrial sales decreased during the period as a
result of cogeneration projects with two of Northern Indiana's major
industrial customers coming online during the period.  In 1996, electric
revenues were $1.022 billion, a decrease of $8.7 million from 1995.  The
decrease in electric revenues was mainly due to decreased sales to residential
customers due to cooler summer weather in 1996, and decreased sales to
industrial customers due to operational difficulties at several major
industrial customers, which were partially offset by increased sales to
commercial and wholesale customers. 
 
      The components of the changes in gas and electric revenues are shown 
in the following tables: 
 
<TABLE> 
<CAPTION> 
                                            Year 1997         Year 1996 
                                           Compared To       Compared To 
                                            Year 1996         Year 1995 
                                          ============      ============ 
                                                (Dollars in millions) 
 
<S>                                       <C>               <C> 
Gas Revenue 
 Pass through of net changes in 
  purchased gas costs, gas storage 
  and storage transportation costs        $        8.7      $       55.6  
 Gas transition costs                             (4.4)            (33.5)
 Changes in sales levels                          (2.8)             77.5 
 Gas transported                                   1.9              (1.1) 
                                          ------------      ------------ 
Gas Revenue Change                        $        3.4      $       98.5 
                                          ------------      ------------ 
 
Electric Revenue 
 Pass through of net changes 
  in fuel costs                           $        4.0      $        3.2  
 Changes in sales levels                          (9.1)            (11.9)
                                          ------------      ------------ 
Electric Revenue Change                   $       (5.1)     $       (8.7)
                                          ------------      ------------ 
 Total Revenue Change                     $       (1.7)     $       89.8 
                                          ============      ============ 
 
</TABLE> 
 
      See Rate Matters in Notes to Consolidated Financial Statements 
regarding FERC Order No. 636 transition costs. 
 
      The basic steel industry accounted for 36% of natural gas delivered 
(including volumes transported) and 33% of electric sales during 1997. 
 
      Northern Indiana's rate schedules for gas and electric service to its 
customers contain an electric rate adjustment clause for changes in the cost 
of fuel and firm purchases of electric energy; and a gas rate adjustment 
clause to reflect changes in the cost of gas purchased, contracted gas 
storage and storage transportation costs.  (See Fuel Adjustment Clause and 
Gas Cost Adjustment Clause under Summary of Significant Accounting Policies 
in Notes to Consolidated Financial Statements.) 
 
      GAS COSTS.  Gas costs increased $8.3 million (1.9%) in 1997 due to 
increased gas costs per dth, which were partially offset by decreased gas
transition costs.  The average cost for purchased gas in 1997, after
adjustment for gas transition costs billed to transport customers, was $3.08
per dth as compared to $3.02 per dth in 1996.  Gas costs increased $77.6
million (21.2%) in 1996 due to increased purchases and increased gas costs per
dth, which were partially offset by decreased gas transition costs.  The
average cost for purchased gas in 1996, after adjustment for gas transition
costs billed to transport customers, was $3.02 per dth as compared to $2.63
per dth in 1995. 
 
      FUEL AND PURCHASED POWER.  Cost of fuel for electric generation in 
1997 increased mainly as a result of increased production.  The average cost 
per kwh generated decreased 2.3% from 1996 to 15.43 mills.  The cost of fuel 
for electric generation in 1996 decreased mainly as a result of decreased
production.  The average cost per kwh generated decreased 0.6% from 1995 to
15.79 mills. 
 
      Power purchased decreased $16.5 million in 1997 as a result of 
decreased bulk power purchases.  Power purchased increased $10.1 million in
1996 as a result of increased bulk power purchases and increased cost per
megawatt purchased. 
 
      OPERATING MARGINS.  Operating margins increased $1.1 million in 1997 
to $1.024 billion.  The gas operating margin decreased $4.9 million in 1997 
due to decreased sales to residential and commercial customers reflecting
milder weather, partially offset by increased sales to wholesale customers
and increased deliveries of gas transported for others.  Operating margin
from electric sales increased $6.0 million due to increased sales to
residential and commercial customers, and increased wholesale transactions,
partially offset by decreased sales to industrial customers.  Operating
margins increased $11.2 million in 1996 to $1.023 billion.  The gas operating
margin increased $20.9 million in 1996, due to the increased sales to
residential and commercial customers reflecting colder weather during the
first quarter of 1996, increased sales to industrial and wholesale customers,
and increased deliveries of gas transported for others.  Operating margins
from electric sales decreased $9.7 million in 1996 due to decreased sales to
residential customers reflecting cooler summer weather in 1996, and decreased
sales to industrial customers due to plant operational difficulties at several
major customers, which were partially offset by increased sales to commercial
and wholesale customers.

      OPERATING EXPENSES AND TAXES.  Operating expenses and taxes (except    
income) in 1997 decreased 0.1% from 1996 to $632.9 million and in 1996 
increased 1.2% from 1995 to $633.4 million. 
                         
      Operation expenses decreased $11.8 million in 1997 over 1996 due to 
reduced pension costs, reduced environmental costs of $4.2 million and reduced
pollution control facility costs of $4.1 million. Operation expenses increased
$2.4 million in 1996 over 1995 due to increased pollution control facility
costs, environmental costs of $5.4 million, and other various increased
operating costs partially offset by reduced pension costs. 
 
      Maintenance expenses remained relatively unchanged in 1997 from 1996.
Maintenance expense decreased $8.2 million in 1996 from 1995 mainly reflecting
decreased maintenance activity at electric production facilities and gas
underground storage facilities. 
 
      Depreciation and amortization expenses increased $11.5 million in 1997
from 1996 resulting from plant additions.  Depreciation and amortization
expenses increased $13.3 million in 1996 from 1995 resulting from plant
additions, increased amortization of computer software and the amortization of
deferred costs related to scrubber services provided by Pure Air at the Bailly
Generating Station. 
                              
      Utility income taxes increased $1.0 million in 1997 from 1996, increased
$2.5 million in 1996 from 1995, in each period mainly as a result of increased
pre-tax income. 
                             
      Other Income (Deductions) decreased $3.9 million in 1997 from 1996
mainly as a result of the sale of Cresent Dunes Lakeshore property to the
National Park Service in 1996.  Other Income (Deductions) increased $3.9
million in 1996 from 1995 mainly reflecting the sale of Crescent Dunes
Lakeshore property to the National Park Service. 
                            
      Interest charges decreased $2.6 million and increased $1.9 million in
1997 and 1996, respectively.  The 1997 decrease reflects decreased short-term
borrowing during the year.  The 1996 increase reflects the issuance of
$169,275,000 of Northern Indiana's Medium-Term Notes, Series D and the
discontinuance of carrying charges on deferred charges related to the Bailly
Generating Station scrubber service agreement.  
 
      See Notes to Consolidated Financial Statements for a discussion of 
accounting policies and transactions impacting this analysis. 
 
      ENVIRONMENTAL MATTERS.  Northern Indiana has an ongoing program to
remain aware of laws and regulations involved with hazardous waste and other 
environmental matters. It is Northern Indiana's intent to continue to evaluate
its facilities and properties with respect to these rules and identify any
sites that would require corrective action.  Northern Indiana has recorded a
reserve of approximately $19 million to cover probable corrective actions as
of December 31, 1997; however, environmental regulations and remediation
techniques are subject to future change.  The ultimate cost could be
significant, depending on the extent of corrective actions required.  Based
upon investigations and management's understanding of current laws and
regulations, Northern Indiana believes that any corrective actions required, 
after consideration of insurance coverages and contributions from other 
potentially responsible parties, will not have a significant impact on the 
results of operations or financial position of Northern Indiana. 
 
      The Environmental Protection Agency (EPA) has notified Northern 
Indiana that it is a "potentially responsible party" (PRP) under the 
Comprehensive Environmental Response Compensation and Liability Act (CERCLA) 
and may be required to share in the cost of cleanup of several waste 
disposal sites identified by the EPA.  The sites are in various stages of 
investigation, analysis and remediation.  At each of the sites, Northern 
Indiana is one of several PRPs, and it is expected that remedial costs, 
as provided under CERCLA, will be shared among them.  At some sites, Northern 
Indiana and/or the other named PRPs are presently working with the EPA to 
clean up the sites and avoid the imposition of fines or added costs. 
 
      Refer to Environmental Matters in Notes to Consolidated Financial
Statements for a more detailed discussion of the status of certain
environmental issues.
 
      LIQUIDITY AND CAPITAL RESOURCES.  Construction expenditures by 
Northern Indiana for 1997, 1996 and 1995 were approximately $174 million, 
$198 million, and $186 million, respectively.  Northern Indiana's total 
utility plant investment on December 31, 1997, was $5.6 billion. 
      
      On May 28, 1997, Northern Indiana was authorized to issue and sell up to
$217,692,000 of its Medium-Term Notes, Series E, with various maturities, for
purposes of refinancing certain first mortgage bonds and medium-term notes.
As of December 31, 1997, $139.0 million of the medium-term notes had been
issued with various interest rates and maturities.  The proceeds from these
issuances were used to pay short-term debt incurred to redeem its First
Mortgage Bonds, Series N, and to pay at maturity various issues of Medium-Term
Notes, Series D.

      Cash flow from operations has provided sufficient liquidity to meet
current operating requirements.  Because of the seasonal nature of the utility
business and the construction program, Northern Indiana makes use of commercial
paper intermittently as short-term financing.  As of December 31, 1997, Northern
Indiana had $71.5 million in commercial paper outstanding, having a weighted
average interest rate of 6.16%. 
  
      Northern Indiana has a $250 million revolving Credit Agreement with 
several banks which terminates August 19, 1999.  As of December 31, 1997,
there were no borrowings outstanding under this agreement.  In addition,
Northern Indiana has $14.2 million in lines of credit which run to May 31,
1998.  The credit pricing of each of the lines varies from either the lending
banks' commercial prime or market rates.  Northern Indiana has agreed to
compensate the participating banks with arrangements that vary from no
commitment fee to a combination of fees which are mutually satisfactory to
both parties.  As of December 31, 1997, there were no borrowings under these
lines of credit.  The Credit Agreement and lines of credit are also available
to support the issuances of commercial paper. 
 
      Northern Indiana also has $273.5 million of money market lines of 
credit.  As of December 31, 1997, $47.5 million of borrowings were  
outstanding under these lines of credit. 
 
      Northern Indiana has a $50 million uncommitted finance facility.  At 
December 31, 1997, there were no borrowings outstanding under this facility. 
 
      During recent years, Northern Indiana has been able to finance its 
construction program with internally generated funds and expects to be able 
to meet future commitments through such funds.

      Northern Indiana does not expect the effects of inflation at current 
levels to have a significant impact on its results of operations, ability to 
contain cost increases, or need to seek timely and adequate rate relief.  
Northern Indiana does not anticipate the need to file for gas and electric 
base rate increases in the near future. 
 
      YEAR 2000 COSTS.  Northern Indiana has several major projects underway
to modify portions of its systems for proper functioning in the year 2000.
These include a project to evaluate Northern Indiana's proprietary software and
to work with each of Northern Indiana's software vendors to assure that
appropriate steps are being taken to mitigate the problem in each vendor's
software or, in some cases, to replace software with year 2000 compliant
software; a project to identify and mitigate problems wherever they exist in
Northern Indiana's systems (ranging from equipment used in Northern Indiana's
generating stations to Northern Indiana's phone system that have date
information within them); and an initiative to assure that each entity that
electronically receives information from Northern Indiana or sends information
to Northern Indiana is aware of the steps that Northern Indiana is taking and
is taking appropriate steps of its own to address the problem.  Consistent
with its plan, Northern Indiana expects to be year 2000 compliant with some
systems as early as third quarter 1998 and other systems no later than the
third quarter of 1999.  

      Northern Indiana estimates that costs to become year 2000 compliant will
be approximately $6-$9 million, including acquisition costs of new systems
which will be capitalized consistent with Northern Indiana's accounting
policies.  Costs related to maintenance or modification of Northern Indiana's
systems have been and will be expensed as incurred. Northern Indiana does not
anticipate the related costs to have a material impact on its results of
operations, nor does Northern Indiana currently anticipate any disruption of its
ability to deliver service as a result of the year 2000 issue.
  
      COMPETITION.  The Energy Policy Act of 1992 (Energy Act) allows FERC 
to order electric utilities to grant access to transmission systems by third 
party power producers.  The Energy Act specifically prohibits federally 
mandated wheeling of power for retail customers. On April 24, 1996, FERC 
issued its Order No. 888-A which opens wholesale power sales to competition 
and requires public utilities owning, controlling, or operating transmission 
lines to file non-discriminatory open access tariffs that offer others the 
same transmission service they provide themselves.  Northern Indiana filed
its tariff as did virtually all other transmission owners subject to FERC
jurisdiction.  Order No. 888-A also provides for the full recovery of stranded
costs - that is, costs that were prudently incurred to serve power customers
and that could go unrecovered if these customers use open access to move to
another supplier.  FERC expects this rule will accelerate competition and
bring lower prices and more choices to wholesale energy customers.  On
November 25, 1997, FERC issued Order No. 888-B on rehearing, affirming in all
important respects its earlier Order No. 888-A.  Although wholesale customers
represent a relatively small portion of Northern Indiana's sales, Northern
Indiana will continue its efforts to retain and add customers by offering
competitive rates.  
 
      In both January 1997 and January 1998, legislation was introduced in the
Indiana General Assembly addressing electric utility competition and 
deregulation.  The proposed legislation was not adopted, but similiar
legislation may be reintroduced in the future.  Northern Indiana has begun
discussions with other utilities and its largest customers on the technical and
economic aspects of possible legislation to allow customer choice.

      Operating in a competitive environment will place added pressures on 
utility profit margins and credit quality.  Increasing competition in the 
electric utility industry has already led the credit rating agencies to 
apply more stringent guidelines in making credit rating determinations. 
 
      Competition within the electric utility industry will create 
opportunities to compete for new customers and revenues, as well as increase 
the risk of the loss of customers.  Northern Indiana's management has taken 
steps to make the company more competitive and profitable in the changing 
utility environment, including conversions of some of its generating units 
to allow use of lower cost, low sulfur coal. 
 
      FERC Order No. 636 shifted primary responsibility for gas 
acquisition, transportation, and peak days' supply from pipelines to local 
gas distribution companies, such as Northern Indiana.  Although pipelines 
continue to transport gas, they no longer provide sales service.  Northern 
Indiana believes it has taken appropriate steps to ensure the continued 
acquisition of adequate gas supplies at reasonable prices. 
 
      The mix of gas revenues from retail sales, interruptible retail sales, 
firm transportation service, and interruptible transportation services has 
changed significantly over the past several years.  The deregulation of the 
gas industry, since the mid-1980's, allows large industrial and commercial 
customers to purchase their gas supplies directly from producers and use 
Northern Indiana's facilities to transport the gas.  Transportation 
customers pay Northern Indiana only for transporting their gas from the 
pipeline to the customers' premises. 
 
      Northern Indiana filed a petition for an Alternative Regulatory Plan 
(ARP) with the Commission on November 29, 1995.  Following negotation and
settlement with major intervenors, Northern Indiana submitted a modified ARP
to the Commission on May 9, 1997.  In its modified ARP, Northern Indiana
proposed to implement new rates and services that would include, among other
things, further unbundling of services for additional customer classes,
increased customer choice for sources of natural gas supply, negotiated
services and prices, an incentive gas cost mechanism and a price protection
program.  On October 8, 1997, the Commission issued an order approving, in
all respects, the modified ARP which became effective November 1, 1997.  The
first pilot program was launched in January 1998 and the first gas volumes
will flow under this program by April 1, 1998.  ERI Services, Inc. and Enron
Capital and Trade Resources Corp. filed Petitions for Rehearing of the
Commission Order, and during the first quarter of 1998 the Commission denied
such petition.
 
      To date, Northern Indiana's system has not been materially adversely 
affected by competition, and management does not foresee substantial adverse 
effects in the near future, unless the current regulatory structure is 
substantially altered.  Northern Indiana believes the steps it is taking to
deal with increased competition will have significant, positive effects in the
next few years. 
 
      FORWARD LOOKING STATEMENTS.  This report contains forward looking
statements within the meaning of the securities laws.  Northern Indiana
cautions that, while it believes such statements to be based on reasonable
assumptions and makes such statements in good faith, there can be no assurance
that the actual results will not differ materially from such assumptions or
that the expectations set forth in the forward looking statements derived from
such assumptions will be realized.  Investors should be aware of important
factors that could have a material impact on future results.  These factors
include, but are not limited to, weather, the federal and state regulatory
environment, the economic climate, regional, commercial, industrial and
residential growth in the service territories served by Northern Indiana,
customer's usage patterns and preferences, the speed and degree to which
competition enters the utility industries, the timing and extent of changes
in commodity prices, changing conditions in the capital and equity markets
and other uncertainties, all of which are difficult to predict, and many of
which are beyond the control of Northern Indiana.

ITEM 7A.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK.
  
      The primary market risks to which Northern Indiana is exposed and in
connection with which Northern Indiana uses market risk sensitive instruments
are commodity risk and interest rate risk.

      Although Northern Indiana is subject to commodity price risk as part of
its traditional operations, the current regulatory framework within which
Northern Indiana operates allows for full collection of fuel and gas costs in
rate-making.  Consequently, there is limited commodity price risk after
consideration of the related rate-making.  However, as the utility industry
deregulates, Northern Indiana will be providing services without the benefit
of the traditional rate-making allowances and will therefore be more exposed
to commodity price risk.

      Northern Indiana utilizes commodity futures and option contracts to
minimize the impact of price changes to a small portion of its supply portfolio.
The Commission issued an order approving the inclusion of any gains or
losses associated with the use of derivative financial and commodity instruments
into Northern Indiana's gas cost adjustment clause.
      
      Because the commodities covered by Northern Indiana's derivative financial
and commodity instruments are substantially the same commodities that Northern
Indiana buys and sells in the physical market, no special correlation studies
other than monitoring the degree of convergence between the derivative and cash
market are deemed necessary.

      Due to the provisions of the gas cost adjustment clause and the
fuel adjustment clause, movements in the natural gas and electric market prices
would not impact net income.

      Northern Indiana utilizes long-term debt as a primary source of capital
in its business.  A significant portion of Northern Indiana's long-term debt
consists of fixed price debt instruments which have been and will be refinanced
at lower interest rates if Northern Indiana deems it to be economical.  Refer to
Consolidated Statement of Long-Term Debt for detailed information related to
Northern Indiana's long-term debt outstanding and Fair Value of Financial
Instruments in Notes to Consolidated Financial Statements for current market
valuation of long-term debt.
  
ITEM 8.  FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA. 
 
<TABLE> 
<CAPTION> 
INDEX TO CONSOLIDATED FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA    
 
                                                            Pages  
                                                          ========= 
 
<S>                                                       <C> 
      Report of Independent Public Accountants              18-19

      Consolidated Statement of Income for the years 
       ended December 31, 1997, 1996, and 1995              19-20 
 
      Consolidated Balance Sheet - December 31, 1997 
       and 1996                                             20-22 
 
      Consolidated Statement of Capitalization - 
       December 31, 1997 and 1996                           22-24 
 
      Consolidated Statement of Long-term Debt - 
       December 31, 1997 and 1996                           24-25 
 
      Consolidated Statement of Cash Flows for the 
       years ended December 31, 1997, 1996, and 1995        25-26 
 
      Consolidated Statement of Retained Earnings for 
       the years ended December 31, 1997, 1996, and 1995    26-27
 
      Notes to Consolidated Financial Statements            27-49 
 
</TABLE> 
 
<PAGE> 
 
REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS 
TO THE BOARD OF DIRECTORS OF 
NORTHERN INDIANA PUBLIC SERVICE COMPANY: 
 
      We have audited the accompanying consolidated balance sheet and 
consolidated statements of capitalization and long-term debt of Northern 
Indiana Public Service Company (an Indiana corporation and a wholly-owned 
subsidiary of NIPSCO Industries, Inc.) and subsidiaries as of December 31, 
1997 and 1996, and the related consolidated statements of income, retained 
earnings and cash flows for each of the three years in the period ended 
December 31, 1997.  These consolidated financial statements and the schedule 
referred to below are the responsibility of the Company's management.  Our 
responsibility is to express an opinion on these consolidated financial 
statements and schedule based on our audits. 
 
      We conducted our audits in accordance with generally accepted 
auditing standards.  Those standards require that we plan and perform the 
audit to obtain reasonable assurance about whether the financial statements 
are free of material misstatement.  An audit includes examining, on a test 
basis, evidence supporting the amounts and disclosures in the financial 
statements.  An audit also includes assessing the accounting principles used 
and significant estimates made by management, as well as evaluating the 
overall financial statement presentation. We believe that our audits provide 
a reasonable basis for our opinion. 
 
      In our opinion, the consolidated financial statements referred to 
above present fairly, in all material respects, the financial position of 
Northern Indiana Public Service Company and subsidiaries as of December 31, 
1997 and 1996, and the results of their operations and their cash flows for 
each of the three years in the period ended December 31, 1997, in conformity
with generally accepted accounting principles. 
 
      Our audits were made for the purpose of forming an opinion on the 
basic financial statements taken as a whole.  The schedule appearing in Item
14(a)(2)listed on Page 60 is presented for purposes of complying with the
Securities and Exchange Commission's rules and is not part of the basic
financial statements. This schedule has been subjected to the auditing
procedures applied in the audits of the basic financial statements and, in
our opinion, fairly states in all material respects the financial data required
to be set forth therein in relation to the basic financial statements taken 
as a whole. 
 
                                            /s/  Arthur Andersen LLP 
 
Chicago, Illinois 
January 30, 1998 
 
 
<PAGE> 
<TABLE> 
<CAPTION> 
CONSOLIDATED STATEMENT OF INCOME 
                                                                       
YEAR ENDED DECEMBER 31,                    1997        1996        1995 
                                        ==========  ==========  ========== 
                                              (Dollars in thousands) 
 
<S>                                     <C>         <C>         <C> 
Operating Revenues:  
 (Notes 2, 4 and 21) 
  Gas                                   $  735,299  $  731,874  $  633,355   
  Electric                               1,017,083   1,022,231   1,030,923 
                                        ----------  ----------  ---------- 
                                         1,752,382   1,754,105   1,664,278 
                                        ----------  ----------  ---------- 
Cost of Energy: (Note 2) 
 Gas costs                                 452,436     444,141     366,487 
 Fuel for electric generation              238,548     233,215     242,337 
 Power purchased                            37,274      53,751      43,681 
                                        ----------  ----------  ----------   
                                           728,258     731,107     652,505 
                                        ----------  ----------  ----------  
Operating Margin                         1,024,124   1,022,998   1,011,773   
                                        ----------  ----------  ---------- 
Operating Expenses and 
 Taxes (except income): 
  Operation                                269,275     281,066     278,683 
  Maintenance (Note 2)                      68,853      68,729      76,953 
  Depreciation and 
   amortization (Note 2)                   223,025     211,545     198,259 
  Taxes (except income)                     71,752      72,069      71,831 
                                        ----------  ----------  ---------- 
                                           632,905     633,409     625,726 
                                        ----------  ----------  ---------- 
Operating Income Before 
 Utility Income Taxes                      391,219     389,589     386,047 
                                        ----------  ----------  ---------- 
Utility Income Taxes (Note 6)              110,099     109,051     106,574 
                                        ----------  ----------  ---------- 
 
Operating Income                           281,120     280,538     279,473 
                                        ----------  ----------  ----------  
Other Income (Deductions)                   (3,659)        240      (3,619)
                                        ----------  ----------  ---------- 
 
Interest Charges: 
 Interest on long-term debt                 69,427      68,798      72,339 
 Other interest                              7,574      11,225       8,395 
 Allowance for borrowed funds used  
  during construction and carrying  
  charges (Note 2)                            (354)       (805)     (3,320) 
 Amortization of premium, reacquisition  
  premium, discount and expense on  
  debt, net                                  4,194       4,250       4,119 
                                        ----------  ----------  ---------- 
                                            80,841      83,468      81,533 
                                        ----------  ----------  ---------- 
 
Net Income                                 196,620     197,310     194,321 
 
Dividend requirements on 
 preferred stocks                            8,539       8,712       9,046 
                                        ----------  ----------  ---------- 
Balance available  
 for common shares                      $  188,081  $  188,598  $  185,275 
                                        ==========  ==========  ========== 
 
Common dividends declared               $  187,775  $  187,450  $  185,725 
                                        ==========  =========== ========== 
 
<FN> 
The accompanying notes to consolidated financial statements are an 
integral part of this statement. 
 
</FN> 
</TABLE> 
 
 
<TABLE> 
<CAPTION> 
CONSOLIDATED BALANCE SHEET 
 
DECEMBER 31,                                   1997           1996 
                                            ===========    ===========     
                                              (Dollars in thousands) 
 
<S>                                         <C>            <C>  
ASSETS 
 
UTILITY PLANT, at original cost (including 
 construction work in progress of 
 $140,534 and $162,123, respectively) 
 (Note 2): 
  Electric                                  $ 4,066,568    $ 4,050,084 
  Gas                                         1,223,693      1,176,871  
  Common                                        351,350        346,636 
                                            -----------    ----------- 
                                              5,641,611      5,573,591 
 
    Less - Accumulated provision for 
     depreciation and amortization            2,613,352      2,499,687 
                                            -----------    ----------- 
      Total Utility Plant                     3,028,259      3,073,904 
                                            -----------    ----------- 
 
OTHER PROPERTY AND INVESTMENTS                    1,215          8,971   
                                            -----------    ----------- 
CURRENT ASSETS: 
 Cash and cash equivalents                        9,800          8,279 
 Accounts receivable, less reserve of 
  $4,524 and $4,568, respectively (Note 2)      101,188        111,866  
 Fuel adjustment clause (Note 2)                  2,679          9,149   
 Gas cost adjustment clause (Note 2)             86,520         98,167 
 Materials and supplies, at average cost         53,666         56,796 
 Electric production fuel, at average cost       18,837         26,483 
 Natural gas in storage, at last-in,  
  first-out cost (Note 2)                        45,880         50,409 
 Prepayments and other                           23,128         25,826 
                                            -----------    ----------- 
      Total Current Assets                      341,698        386,975 
                                            -----------    -----------  
 
OTHER ASSETS: 
 Regulatory assets (Note 2)                     205,965        239,547 
 Prepayments and other (Note 7)                  97,777         64,883   
                                            -----------    ----------- 
      Total Other Assets                        303,742        304,430 
                                            -----------    ----------- 
                                            $ 3,674,914    $ 3,774,280 
                                            ===========    =========== 
 
<FN> 
The accompanying notes to consolidated financial statements are an 
integral part of this statement. 
</FN> 
</TABLE> 
 
<TABLE> 
<CAPTION> 
CONSOLIDATED BALANCE SHEET 
 
DECEMBER 31,                                   1997           1996 
                                            ===========    ===========  
                                               (Dollars in thousands) 
 
<S>                                         <C>            <C> 
CAPITALIZATION AND LIABILITIES 
 
CAPITALIZATION: 
 Common shareholder's equity                $ 1,018,303    $ 1,017,996 
 Preferred stocks (Note 9) - 
   Series without mandatory 
    redemption provisions (Note 10)              81,123         81,126 
   Series with mandatory  
    redemption provisions (Note 11)              58,841         61,246 
 Long-term debt, excluding amounts due  
  within one year (Note 15)                   1,079,496        992,008 
                                            -----------    -----------  
      Total capitalization                    2,237,763      2,152,376 
                                            -----------    ----------- 
 
CURRENT LIABILITIES: 
 Current portion of long-term debt               51,009         67,247 
  (Note 16)       
 Short-term borrowings (Note 17)                119,000        272,905 
 Accounts payable                               127,742        190,182 
 Dividends declared on common and                                     
  preferred stocks                               56,198         54,255 
 Customer deposits                               20,236         16,768 
 Taxes accrued                                   88,852         78,806 
 Interest accrued                                 7,646          5,851 
 Accrued employment costs                        51,095         40,915 
 Other                                           34,051         27,934  
                                            -----------    ----------- 
      Total current liabilities                 555,829        754,863 
                                            -----------    -----------    
 
OTHER: 
 Deferred income taxes (Note 6)                 602,936        597,105 
 Deferred investment tax credits, being 
  amortized over life of related property  
   (Note 6)                                      99,853        107,058 
 Deferred credits                                53,323         50,058 
 Accrued liability for postretirement 
  benefits (Note 8)                             115,177        104,123 
 Other noncurrent liabilities                    10,033          8,697 
                                            -----------    -----------  
      Total other                               881,322        867,041 
                                            -----------    ----------- 
 
COMMITMENTS AND CONTINGENCIES: 
 (Notes 3, 4, 5, 18 and 19) 
                                            $ 3,674,914    $ 3,774,280 
                                            ===========    =========== 
 
<FN> 
The accompanying notes to consolidated financial statements are an 
integral part of this statement. 
 
</FN> 
</TABLE> 
 
<TABLE> 
<CAPTION> 
CONSOLIDATED STATEMENT OF CAPITALIZATION 
 
DECEMBER 31,                          1997                  1996 
                                   ===========           =========== 
                                         (Dollars in thousands) 
 
<S>                                <C>                   <C> 
COMMON SHAREHOLDER'S EQUITY: 
  Common shares - without par 
   value - authorized 75,000,000                                               
   shares - issued and outstanding                                             
   73,282,258 shares               $   859,488           $   859,488    
  Additional paid-in capital            12,522                12,521 
  Retained earnings                    146,293               145,987 
                                   -----------           ----------- 
   Total common shareholder's 
    equity                           1,018,303   45.5%     1,017,996   47.3% 
                                   -----------           ----------- 
 
PREFERRED STOCKS, WHICH ARE 
 REDEEMABLE SOLELY AT OPTION 
 OF NORTHERN INDIANA: 
  Cumulative preferred stock - 
   $100 par value - 
    4-1/4% series - 209,118 and 
     209,145 shares outstanding, 
     respectively                       20,912                20,915 
    4-1/2% series - 79,996  
     shares outstanding                  8,000                 8,000 
    4.22% series - 106,198       
     shares outstanding                 10,620                10,620 
    4.88% series - 100,000 
     shares outstanding                 10,000                10,000 
    7.44% series - 41,890 
     shares outstanding                  4,189                 4,189 
    7.50% series - 34,842 
     shares outstanding                  3,484                 3,484 
    Premium on preferred stock             254                   254 
  Cumulative preferred stock -  
   no par value - 
    Adjustable Rate (6.00% at 
     December 31, 1997) - 
     Series A (stated value - 
     $50 per share), 473,285  
     shares outstanding                 23,664                23,664 
                                   -----------           ----------- 
                                        81,123    3.6%        81,126    3.8% 
                                   -----------           ----------- 
 
REDEEMABLE PREFERRED STOCKS, 
 SUBJECT TO MANDATORY REDEMPTION 
 REQUIREMENTS OR WHOSE 
 REDEMPTION IS OUTSIDE THE 
 CONTROL OF NORTHERN INDIANA: 
  Cumulative preferred stock - 
   $100 par value - 
    8.85% series - 62,500 and 
     75,000 shares outstanding, 
     respectively                        6,250                 7,500 
    7-3/4% series - 38,906 and 
     44,460 shares outstanding, 
     respectively                        3,891                 4,446 
    8.35% series - 57,000 and 
     63,000 shares outstanding, 
     respectively                        5,700                 6,300 
  Cumulative preferred stock - 
   no par value - 
    6.50% series - 430,000 
     shares outstanding                 43,000                43,000 
                                   -----------           ----------- 
                                        58,841    2.7%        61,246    2.8% 
                                   -----------           ----------- 
LONG-TERM DEBT                       1,079,496   48.2%       992,008   46.1% 
                                   ___________  ______   ___________  ______  
 
     Total capitalization          $ 2,237,763  100.0%   $ 2,152,376  100.0% 
                                   ===========  ======   ===========  ====== 
 
<FN> 
The accompanying notes to consolidated financial statements are an 
integral part of this statement. 
 
</FN> 
</TABLE> 
 
 
<TABLE> 
<CAPTION> 
CONSOLIDATED STATEMENT OF LONG-TERM DEBT 
 
DECEMBER 31,                                      1997            1996 
                                               ===========     ===========   
                                                  (Dollars in thousands) 
 
<S>                                            <C>             <C> 
FIRST MORTGAGE BONDS - 
 Series P, 6-7/8%, due October 1, 1998         $         0     $    14,509 
 Series T, 7-1/2%, due April 1, 2002                39,500          40,000 
 Series NN, 7.10%, due July 1, 2017                 55,000          55,000 
                                               -----------     ----------- 
    Total                                           94,500         109,509 
                                               -----------     ----------- 
 
POLLUTION CONTROL NOTES AND BONDS - 
 Series A Note - 
  City of Michigan City, 5.70% due 
  October 1, 2003                                   18,000          19,000 
 Series 1988 Bonds - Jasper County -  
  Series  A, B and C - 3.81% weighted 
  average at December 31, 1997, due 
  November 1, 2016                                 130,000         130,000 
 Series 1988 Bonds - Jasper County -  
  Series D - 3.78 weighted average at  
  December 31, 1997, due November 1, 2007           24,000          24,000 
 Series 1994 Bonds - Jasper County - 
  Series A - 4.25% at December 31, 1997 
  due August 1, 2010                                10,000          10,000 
 Series 1994 Bonds - Jasper County - 
  Series B - 4.25% at December 31, 1997, 
  due June 1, 2013                                  18,000          18,000 
 Series 1994 Bonds - Jasper County - 
  Series C - 4.25% at December 31, 1997, 
  due April 1, 2019                                 41,000          41,000 
                                               -----------     ----------- 
    Total                                          241,000         242,000 
                                               -----------     ----------- 
 
MEDIUM-TERM NOTES - 
 Issued at interest rates between 6.10%  
  and 7.69% with a weighted average interest 
  rate of 7.00% and various maturities between                                 
  April 5, 2000 and August 4, 2027                 748,025         644,025 
                                               -----------     ----------- 
UNAMORTIZED PREMIUM AND DISCOUNT  
 ON LONG-TERM DEBT, NET                             (4,029)         (3,526) 
                                               -----------     ----------- 
    Total long-term debt, excluding   
     amounts due in one year                   $ 1,079,496     $   992,008 
                                               ===========     =========== 
 
<FN> 
The accompanying notes to consolidated financial statements are an 
integral part of this statement. 
 
</FN> 
</TABLE> 
 
 
<TABLE> 
<CAPTION> 
CONSOLIDATED STATEMENT OF CASH FLOWS 
 
YEAR ENDED DECEMBER 31,                 1997          1996         1995 
                                    ===========   ===========   ===========   
                                             (Dollars in thousands) 
 
<S>                                 <C>           <C>          <C> 
CASH FLOWS FROM  
 OPERATING ACTIVITIES: 
  Net income                        $   196,620   $   197,310   $   194,321 
 
ADJUSTMENTS TO RECONCILE  
 NET INCOME TO NET CASH:              
  Depreciation and amortization         223,025       211,545       198,259 
  Deferred federal and state 
   operating income taxes, net           (8,414)       26,117        (3,247) 
  Deferred investment tax 
   credits, net                          (7,205)       (7,327)       (7,436) 
  Advance contract payment                1,900       (17,100)           0    
  Change in certain assets and 
   liabilities - 
    Accounts receivable, net             10,678       (15,790)      (15,099)
    Electric production fuel              7,646       (12,225)        4,089  
    Materials and supplies                3,130         7,028            11 
    Natural gas in storage                4,529         3,004        19,049  
    Accounts payable                    (51,273)       35,517        (7,839) 
    Taxes accrued                        21,488        14,628       (11,156)
    Fuel adjustment clause                6,470         1,152        (8,687)
    Gas cost adjustment clause           11,647       (94,054)       23,731 
    Accrued employment costs             10,180        (4,856)        2,511 
    Other accruals                        6,117       (14,488)       21,116 
   Other, net                            21,799         6,962           888 
                                    -----------   -----------   ----------- 
     Net cash provided by 
      operating activities              458,337       337,423       410,511 
                                    -----------   -----------   ----------- 
CASH FLOWS PROVIDED BY (USED IN)  
 INVESTING ACTIVITIES: 
  Construction expenditures            (174,231)     (198,223)     (185,560) 
  Other, net                             (3,191)       22,102           710 
                                    -----------   -----------   ----------- 
     Net cash used in investing 
      activities                       (177,422)     (176,121)     (184,850) 
                                    -----------   -----------   ----------- 
 
CASH FLOWS PROVIDED BY  
 (USED IN) FINANCING  
 ACTIVITIES: 
  Issuance of long-term debt            139,000             0       168,386 
  Issuance of short-term debt           534,430     1,172,150       943,200 
  Net change in commercial paper       (122,405)      149,105      (111,700)
  Retirement of long-term debt          (67,247)      (80,000)     (120,868) 
  Retirement of short-term debt        (565,930)   (1,211,950)     (917,100) 
  Retirement of preferred stock          (2,408)       (2,604)       (7,095) 
  Cash dividends paid on 
   common shares                       (185,775)     (182,950)     (180,475) 
  Cash dividends paid on 
   preferred shares                      (8,556)       (8,766)       (9,241) 
  Other, net                               (503)          514          (284)
                                    -----------   -----------   ----------- 
     Net cash used in                                                          
      financing activities             (279,394)     (164,501)     (235,177) 
                                    -----------   -----------   ----------- 
 
NET INCREASE (DECREASE) IN 
 CASH AND CASH EQUIVALENTS                1,521        (3,199)       (9,516)
 
CASH AND CASH EQUIVALENTS AT  
 BEGINNING OF PERIOD                      8,279        11,478        20,994 
                                    -----------   -----------   ----------- 
CASH AND CASH EQUIVALENTS AT 
 END OF PERIOD                      $     9,800   $     8,279   $    11,478 
                                    ===========   ===========   =========== 
 
<FN> 
 
The accompanying notes to consolidated financial statements are an 
integral part of this statement. 
 
</FN> 
</TABLE> 
 
 
<TABLE> 
<CAPTION> 
CONSOLIDATED STATEMENT OF RETAINED EARNINGS 
 
YEAR ENDED DECEMBER 31,                    1997       1996       1995 
                                        =========  =========  ========= 
                                              (Dollars in thousands) 
 
<S>                                     <C>        <C>        <C> 
BALANCE AT BEGINNING OF PERIOD          $ 145,987  $ 144,839  $ 145,289 
  
ADD: 
NET INCOME                                196,620    197,310    194,321 
                                        ---------  ---------  ---------  
                                          342,607    342,149    339,610 
                                        ---------  ---------  --------- 
 
LESS: 
 DIVIDENDS:  
  Cumulative Preferred stock -  
   4-1/4% series                              889        889        891 
   4-1/2% series                              360        360        360 
   4.22%  series                              448        448        448 
   4.88%  series                              488        488        488 
   7.44%  series                              312        312        312 
   7.50%  series                              261        261        261 
   8.85%  series                              682        793        903 
   7-3/4% series                              362        395        449 
   8.35%  series                              522        572        622 
   6.50%  series                            2,795      2,795      2,795 
   Adjustable Rate, series A                1,420      1,399      1,517  
 
  Common shares                           187,775    187,450    185,725 
                                       ----------  ---------  --------- 
                                          196,314    196,162    194,771 
                                       ----------  ---------  --------- 
BALANCE AT END OF PERIOD                $ 146,293  $ 145,987  $ 144,839 
                                       ==========  =========  ========= 
 
<FN> 
The accompanying notes to consolidated financial statements are an 
integral part of this statement. 
 
</FN> 
</TABLE> 
 
 
<PAGE> 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
 
(1)   HOLDING COMPANY STRUCTURE:  NIPSCO Industries, Inc. (Industries) was 
incorporated in Indiana on September 22, 1987 and became the parent of 
Northern Indiana Public Service Company (Northern Indiana) on March 3, 1988.  
Northern Indiana is a public utility operating company supplying electricity 
and gas to the public in the northern third of Indiana.  
 
(2)   SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES: 
 
      BASIS OF PRESENTATION.  The consolidated financial statements include
the accounts of Northern Indiana and its two subsidiaries, Shore Line Shops,
Inc. and NIPSCO Exploration Company, Inc.  All significant intercompany 
items have been eliminated in consolidation.  Certain reclassifications were 
made to conform the prior years' financial statements to the current 
presentation.  
 
      USE OF ESTIMATES.  The preparation of financial statements in conformity 
with generally accepted accounting principles requires management to make 
estimates and assumptions that affect the reported amounts of assets and 
liabilities at the date of the financial statements and the reported amounts 
of revenues and expenses during the reporting period.  Actual results could 
differ from those estimates.   
 
      OPERATING REVENUES.  Revenues are recorded based on estimated service 
rendered, but are billed to customers monthly on a cycle basis. 
 
      DEPRECIATION AND MAINTENANCE.  Northern Indiana provides depreciation on
a straight-line method over the remaining service lives of the electric, gas and
common properties.  The provisions, as a percentage of the cost of depreciable
utility plant, were approximately 4.3% for the year 1997, 4.2% for year 1996,
and 4.1% for year 1995.  The depreciation rates for electric and gas properties
were 3.55% and 4.92%, respectively. 
      
      Northern Indiana follows the practice of charging maintenance and 
repairs, including the cost of renewals of minor items of property, to 
maintenance expense accounts, except for repairs of transportation and service 
equipment which are charged to clearing accounts and redistributed to 
operating expense and other accounts.  When property which represents a 
retirement unit is replaced or removed, the cost of such property is credited 
to utility plant, and such cost, together with the cost of removal less salvage,
is charged to the accumulated provision for depreciation. 
 
      AMORTIZATION OF SOFTWARE COSTS.  Northern Indiana has capitalized software
relating to various technology functions.  At the date of installation, Northern
Indiana estimates that the specific software will have a useful life between
five and ten years.  The FERC prescribes certain amortization periods, and
Northern Indiana's management has determined that, on average, these are
reasonable useful life estimates for the portfolio of capitalized software.
Northern Indiana includes these amortization estimates, based on useful life,
in its quarterly filings with the Indiana state regulatory commission.
   
      COAL RESERVES.  Northern Indiana has a long-term mining contract to  
mine its coal reserves through the year 2001.  The costs of the reserves are
being recovered through the rate-making process as such coal reserves are used
to produce electricity.
 
      POWER PURCHASED.  Power purchases and net interchange power with other  
electric utilities under interconnection agreements are included in Cost of  
Energy under the caption "Power purchased." 
 
      ACCOUNTS RECEIVABLE.  At December 31, 1997, Northern Indiana had sold 
$100 million of its accounts receivable under a sales agreement which expires 
May 31, 2002.  The December 31, 1997 and 1996 accounts receivable balances
include approximately $5.4 million and $7.1 million respectively, due from
associated companies. 
 
      STATEMENT OF CASH FLOWS.  For purposes of the Consolidated Statement 
of Cash Flows, Northern Indiana considers temporary cash investments with an 
original maturity of three months or less to be cash equivalents. 
 
      Cash paid during the periods reported for income taxes and interest 
was as follows: 
 
<TABLE> 
<CAPTION> 
                                                   1997      1996      1995 
                                                 ========  ========  ======== 
                                                    (Dollars in thousands) 
 
<S>                                              <C>       <C>       <C> 
Income taxes                                     $104,809  $ 73,631  $128,487 
 
Interest, net of amounts capitalized             $ 75,085  $ 78,268  $ 80,635 
 
</TABLE> 
 
      FUEL ADJUSTMENT CLAUSE.  All metered electric rates contain a provision 
for adjustment in charges for electric energy to reflect increases and 
decreases in the cost of fuel and the fuel cost of purchased power through 
operation of a fuel adjustment clause.  As prescribed by order of the Indiana 
Utility Regulatory Commission (Commission) applicable to metered retail rates, 
the adjustment factor has been calculated based on the estimated cost of fuel 
and the fuel cost of purchased power in a future three-month period.  If two 
statutory requirements relating to expense and return levels are satisfied, 
any under-recovery or over-recovery caused by variances between estimated and 
actual cost in a given three-month period will be included in a future filing. 
Northern Indiana records any under-recovery or over-recovery as a current 
asset or current liability until such time as it is billed or refunded to its 
customers.  The fuel adjustment factor is subject to a quarterly hearing by 
the Commission and remains in effect for a three-month period.  
 
      GAS COST ADJUSTMENT CLAUSE.  All metered gas rates contain an adjustment 
factor which reflects the cost of purchased gas, contracted gas storage, and 
storage transportation charges.  Northern Indiana records any under-recovery 
or over-recovery as a current asset or current liability until such time as it 
is billed or refunded to its customers.  The gas cost adjustment factor is 
subject to a quarterly hearing by the Commission and remains in effect for a 
three-month period. If the statutory requirement relating to the level of 
return is satisfied, any under-recovery or over-recovery caused by variances 
between estimated and actual cost in a given three month period will be  
included in a future filing.  See Note 4, FERC Order No. 636 for a discussion 
of gas transition cost charges. 
 
      NATURAL GAS IN STORAGE.  Natural gas in storage is valued using the 
last-in, first-out (LIFO) inventory methodology.  Based on the average cost of 
gas purchased in December 1997 and 1996 the estimated replacement cost of 
gas in storage (current and non-current) at December 31, 1997 and 1996 
exceeded the stated LIFO cost by approximately $42 million and $96 million, 
respectively. 
 
      AFFILIATED COMPANY TRANSACTIONS.  Pursuant to agreement, effective 
July 1, 1996, Northern Indiana receives executive, financial, gas supply, 
sales and marketing, and administrative and general services from an  
affiliate, NIPSCO Industries Management Services Company (NIMSC), a 
wholly-owned subsidiary of Industries. 
 
      The costs of these services are charged to Northern Indiana based on 
payroll and expenses incurred by NIMSC's employees for the benefit of 
Northern Indiana.  These costs which totaled $28.8 million for the year 
1997 and $17.4 million for the six-month period ended December 31, 1996,
consist primarily of employee compensation and benefits. 
 
      Northern Indiana purchased natural gas and transportation services 
from affiliated companies in the amount of $10.2 million and $17.3 million,
representing 2.2% and 4.1% of Northern Indiana's total gas costs for years 1997
and 1996, respectively. 
       
      Northern Indiana subleases a portion of office facilities to affiliated 
companies for a monthly fee, which includes operating expenses, based on 
space utilization. 
 
      HEDGING ACTIVITIES.  Northern Indiana uses commodity futures and option
contracts to hedge the impact of natural gas price fluctuations related to its
business activities.  Gains and losses on these commodity-based derivative
financial instruments are deferred and recognized in income concurrent with
the related purchases and sales of natural gas.

      As of December 31, 1997, Northern Indiana executed options to hedge price
risk associated with 3.0 billion cubic feet of natural gas stored in inventory.
The deferred premiums paid for these options were not material.

      REGULATORY ASSETS.  Northern Indiana's operations are subject to the
regulation of the Federal Energy Regulatory Commission (FERC).  Accordingly,
Northern Indiana's accounting policies are subject to the provisions of
Statement of Financial Accounting Standards (SFAS) No. 71, "Accounting for the
Effects of Certain Types of Regulation."  Northern Indiana monitors changes in
market and regulatory conditions and the resulting impact of such changes in
order to continue to apply the provisions of SFAS No. 71 to some or all of its
operations.  As of December 31, 1997 and December 31, 1996, the regulatory
assets identified below represent probable future revenue to Northern Indiana
associated with certain incurred costs as these costs are recovered through
the rate-making process.  If a portion of Northern Indiana's operations
becomes no longer subject to the provisions of SFAS No. 71, a write-off of
certain regulatory assets might be required, unless some form of transition
cost recovery is established by the appropriate regulatory body which would
meet the requirements under generally accepted accounting principles for
continued accounting as regulatory assets during such recovery period.
Regulatory assets were comprised of the following items: 
 
<TABLE> 
<CAPTION> 
                                                December 31,   December 31, 
                                                    1997           1996 
                                                =============  ============= 
                                                    (Dollars in thousands) 
 
<S>                                             <C>            <C> 
Unamortized reacquisition premium on  
 debt (Note 15)                                 $      46,426  $      49,890 
Unamortized R.M. Schahfer Unit 17 and 
 Unit 18 carrying charges 
 and deferred depreciation  (See below)                66,546         70,763 
Bailly scrubber carrying charges and 
 deferred depreciation (See below)                      9,880         10,816 
Deferral of SFAS No. 106 expense not 
 recovered (Note 8)                                    83,965         87,005 
FERC Order No. 636 transition costs (Note 4)           28,744         47,399 
Regulatory income tax asset, net (Note 6)               9,664          9,002
                                                -------------  ------------- 
                                                      245,225        274,875  
                                                -------------  ------------- 
Less: Current portion of regulatory assets             39,260         35,328 
                                                -------------  ------------- 
                                                $     205,965  $     239,547 
                                                =============  ============= 
 
</TABLE> 
    
      CARRYING CHARGES AND DEFERRED DEPRECIATION.  Upon completion of R. M.    
Schahfer Units 17 and 18, Northern Indiana capitalized the carrying charges 
and deferred depreciation in accordance with orders of the Commission until 
the cost of each unit was allowed in rates.  Such carrying charges and 
deferred depreciation are being amortized over the remaining life of each 
unit. 
 
      Northern Indiana has capitalized carrying charges and deferred 
depreciation and certain operating expenses relating to its scrubber service 
agreement for its Bailly Generating Station in accordance with an order of 
the Commission. Pursuant to such order, capitalization of carrying charges 
and deferral of depreciation and certain operating expenses ceased on 
December 31, 1995. The accumulated balance of the deferred costs and related 
carrying charges is being amortized over the remaining life of the scrubber 
service agreement. 
 
      ALLOWANCE FOR FUNDS USED DURING CONSTRUCTION.  Allowance for funds 
used during construction (AFUDC) is charged to construction work in progress 
during the period of construction and represents the net cost of borrowed 
funds used for construction purposes and a reasonable rate upon other (equity) 
funds. Under established regulatory rate practices, after the construction 
project is placed in service, Northern Indiana is permitted to include in the 
rates charged for utility services (a) a fair return on and (b) depreciation 
of such AFUDC included in plant in service. 
 
      At January 1, 1995 a pretax rate of 6.0% for all construction was 
being used; effective January 1, 1996, the rate decreased to 5.5% and 
effective January 1, 1997, the rate remained at 5.5%. 
 
      INCOME TAXES.  Deferred income taxes are recognized as costs in the 
rate-making process by the commissions having jurisdiction over the rates 
charged by Northern Indiana.  Deferred income taxes are provided as a result 
of provisions in the income tax law that either require or permit certain 
items to be reported on the income tax return in a different period than they 
are reported in the financial statements.  These taxes are reversed by a debit 
or credit to deferred income tax expense as the temporary differences reverse. 
Investment tax credits have been deferred and are being amortized to income 
over the life of the related property. 

(3)   RESOLUTION OF TAX MATTER:  In 1991, the Internal Revenue Service (IRS)
issued a notice of deficiency for Northern Indiana's taxes for the years 1982
through 1985 ($3,785,250 per year plus interest) relating to interest 
payments on $70 million of 17-1/4% Notes issued in 1981 by Northern Indiana's 
former foreign subsidiary, Northern Indiana Public Service Finance N.V.
(Finance).  The IRS maintained that interest paid on the Notes should have
been subject to United States tax withholding.  Northern Indiana challenged
the assessment in the United States Tax Court (Tax Court) and the Tax Court
ruled in favor of Northern Indiana, finding that the interest paid on the
Notes was not subject to United States tax withholding.  The IRS appealed
the Tax Court's decision to the U.S. Court of Appeals for the Seventh Circuit
(Court of Appeals) and Northern Indiana filed a cross appeal.  On June 6,
1997, the Court of Appeals issued an order affirming in full the favorable
Tax Court order.  The IRS did not appeal the decision of the Court of Appeals.
       
(4)   FERC ORDER NO. 636.  Northern Indiana has recorded approximately $136
million of interstate pipeline transition costs since December 31, 1993 to
reflect the impact of FERC Order No. 636, a majority of which costs have been
paid to the pipeline suppliers.  Northern Indiana expects that additional
transition costs will not be significant.  The Commission has approved the
recovery of these FERC-allowed transition costs on a volumetric basis from
sales and transportation customers.  Regulatory assets, in amounts
corresponding to the costs recorded but not yet collected, have been recorded
to reflect the ultimate recovery of these costs.
                         
(5)   ENVIRONMENTAL MATTERS:  Northern Indiana has an ongoing program to
remain aware of laws and regulations involved with hazardous waste and other
environmental matters.  It is Northern Indiana's intent to continue to
evaluate its facilities and properties with respect to these rules and
identify any sites that would require corrective action.  Northern Indiana has
recorded a reserve of approximately $19 million to cover probable corrective
actions as of December 31, 1997; however, environmental regulations and
remediation techniques are subject to future change.  The ultimate cost could
be significant, depending on the extent of corrective actions required.  Based
upon investigations and management's understanding of current laws and
regulations, Northern Indiana believes that any corrective actions required,
after consideration of insurance coverages and contributions from other
potentially responsible parties, will not have a significant impact on the
results of operations or financial position of Northern Indiana. 
                                                                
      Because of major investments made in modern environmental control
facilities and the use of low-sulfur coal, all of Northern Indiana's electric
production facilities now comply with the specific sulfur dioxide limitations
contained in the acid deposition provisions of the Clean Air Act Amendments of
1990 (CAAA).  Reflecting this compliance, on December 31, 1997, Indiana
Department of Environmental Management (IDEM) issued the Phase II Acid
Rain permits for all four of Northern Indiana's electric generating stations.
As discussed below, however, other provisions of the CAAA impose additional
requirements on Northern Indiana.

      On December 19, 1996, the Environmental Protection Agency (EPA)
promulgated rules for Phase II of the Acid Rain nitrogen oxides (NOx)reduction
program.  For Phase I, during the summer of 1997, the EPA formally approved
the Acid Rain Early Election permits for the pulverized coal units at D. H.
Mitchell and R. M. Schahfer stations.  The permits establish the Phase I
limits for the NOx emissions on these units until 2007.  On December 23, 1997,
Northern Indiana submitted an Acid Rain Phase II NOx Compliance Plan to IDEM
which included additional controls for two cyclone fired boilers and a plan
for emission averaging to achieve the NOx limits for the system by 2000.
Northern Indiana plans a project to demonstrate a cost effective combustion
control technique on the Unit 12 cyclone fired boiler at Michigan City during
1998.  The CAAA also contain other provisions that could lead to limitations
on emissions of hazardous air pollutants which may require significant capital
expenditures for control of these emissions.  Northern Indiana cannot predict
what these requirements will be or the costs of complying with these potential
requirements.

      On October 10, 1997, the EPA proposed a rule under the nonattainment
provisions of the CAAA to reduce emissions transported across state boundaries
that allegedly are contributing to nonattainment of the one hour ozone standard
in downwind states.  Because NOx is considered a precursor or cause of ozone
formation, the EPA proposed significant NOx reductions for 22 states,
including Indiana, to address the ozone transport issue.  These proposals, and
any resulting NOx emission limitations arise under different provisions of the
CAAA than the Acid Rain NOx program and can result in additional, more
restrictive emissions limitations than are imposed under the Acid Rain
Program.  The EPA has encouraged states to achieve the reductions by requiring
controls on electric utilities and large boilers.  Northern Indiana is
evaluating the EPA's proposal and evaluating potential requirements that could
result from any final rule.   

      The EPA issued final rules on July 18, 1997 revising the National
Ambient Air Quality Standards for ozone and particulate matter.  The revised
standards begin a regulatory process that may lead to reductions in
particulate, NOx and possibly sulfur dioxide emissions from coal-fired boilers
(including Northern Indiana's generating stations) beyond reductions required in
the Acid Rain nonattainment provisions of the CAAA.  Northern Indiana cannot
predict the costs of complying with future control requirements to meet these
new standards.  Northern Indiana will continue to closely monitor developments
in this area and anticipates that the exact nature of the impact of the new
standards on its operations will not be known for some time.

      The EPA has notified Northern Indiana that it is a "potentially
responsible party" (PRP) under the Comprehensive Environmental Response
Compensation and Liability Act (CERCLA) and may be required to share in the
cost of cleanup of several waste disposal sites identified by the EPA.  The
sites are in various stages of investigation, analysis and remediation.  At
each of the sites, Northern Indiana is one of several PRPs, and it is
expected that remedial costs, as provided under CERCLA, will be shared among
them.  At some sites Northern Indiana and/or the other named PRPs are
presently working with the EPA to clean up the sites and avoid the imposition
of fines or added costs.

      In December 1997, at the Summit on Climate Change in Kyoto, Japan, 159
nations formally agreed to targets reducing worldwide levels of greenhouse
gases.  If the U.S. Senate ratifies the agreement, the Kyoto Protocol would
impose an obligation on the United States to reduce its emissions of
greenhouse gas to a level seven percent below 1990 levels during the period
2008 to 2012.  The impact of this agreement on Northern Indiana is uncertain.
Northern Indiana, as a charter member of the Department of Energy's Climate
Challenge Program, the electric industries' voluntary reduction effort, has
already implemented over 21 projects to voluntarily reduce greenhouse gas
emissions.  Northern Indiana continues to investigate methods to address
reduction in carbon dioxide emissions and will monitor the development of U.S.
climate change policy.  

      Northern Indiana has instituted a program to investigate former
manufactured-gas plants where it is the current or former owner.  Northern
Indiana has identified twenty-four of these sites and made visual inspections
of these sites.  Initial samplings have been conducted at fifteen sites.
Follow-up investigations have been conducted at seven sites and remedial
measures have been selected at four sites.  Northern Indiana will continue its
program to assess and cleanup sites.

      During the course of various investigations, Northern Indiana has
identified impacts to soil, groundwater, sediment and surface water from
former manufactured-gas plants.  At three sites where residues were noted
seeping into rivers, Northern Indiana notified the IDEM and the EPA and
immediately took steps to contain the material.  Northern Indiana has worked
with IDEM or the EPA on investigation or remedial activities at several sites.
Three of the sites have been enrolled in the IDEM Voluntary Remediation
Program (VRP).  The goal of placing these sites in the VRP is to obtain IDEM
approval of the selection and implementation of whatever remedial measures, if
any, may be required.  Northern Indiana anticipates placing additional sites
in the VRP after remedial measures have been selected.

      Northern Indiana and Indiana Gas Company, Inc. (Indiana Gas) have
entered into an agreement covering cost sharing and management of
investigation and remediation programs at five former manufactured-gas
plant sites at which both companies or their predecessors were former
operators or owners.  One of these sites is the Lafayette site which Indiana
Gas had previously notified Northern Indiana is being investigated and
remediated pursuant to an administrative order with IDEM.  Northern Indiana
also notified Cinergy Services, Inc. (Cinergy) (formerly PSI Energy, Inc.)
that it was a former owner or operator of seven former manufactured-gas plants
at which Northern Indiana had conducted or was planning investigation or
remediation activities.  In December 1996, Northern Indiana sent a written
demand to Cinergy related to one of these sites, Goshen.  Northern Indiana
demanded that Cinergy pay Northern Indiana for costs Northern Indiana has
already incurred and to be incurred to implement the needed remedy at the
Goshen site.  In August 1997, Northern Indiana filed suit in federal court
against Cinergy seeking recovery of those costs.

      In 1994, Northern Indiana approached various companies that provided
insurance coverage which Northern Indiana believes covers costs related to
actions taken at former manufactured-gas plants.  There has been litigation
between Northern Indiana and various insurance companies over covered costs.
Northern Indiana has filed claims in state court against various insurance
companies, seeking coverage for costs associated with several former
manufactured-gas plants and damages for alleged misconduct by some of the
insurance companies.  The state court action is now proceeding.  Northern
Indiana has received cash settlements from several of the insurance companies.

      The possibility that exposure to electric and magnetic fields (EMF)
emanating from power lines, household appliances and other electric sources
may result in adverse health effects has been the subject of public,
governmental and media attention.  Recently, researchers from the National
Cancer Institute and the Childhood Cancer Group reported they found no
evidence magnetic fields in homes increase the risk of childhood leukemia.
This study follows an EMF report previously released by the U.S. National
Research Council of the National Academy of Sciences, which concluded, after
examining more than 500 EMF studies spanning seventeen years, that among other
things, there was insufficient evidence to consider EMF a threat to human
health.  Despite the report's findings, future research appropriations are
continuing to be dedicated to explore this issue.

(6)   INCOME TAXES:  Northern Indiana uses the liability method of accounting 
for income taxes under which deferred income taxes are recognized, at 
currently enacted income tax rates, to reflect the tax effect of temporary 
differences between the financial statement and tax bases of assets and 
liabilities.            
 
      To the extent certain deferred income taxes are recoverable or payable 
through future rates, regulatory assets and liabilities have been established. 
Regulatory assets are primarily attributable to undepreciated AFUDC-equity and 
the cumulative net amount of other income tax timing differences for which 
deferred taxes had not been provided in the past, when regulators did not 
recognize such taxes as costs in the rate-making process.  Regulatory 
liabilities are primarily attributable to Northern Indiana's obligation to 
credit to ratepayers deferred income taxes provided at rates higher than the 
current federal tax rate currently being credited to ratepayers using the 
average rate assumption method and unamortized deferred investment tax 
credits. 
 
      Northern Indiana joins in the filing of consolidated tax returns with 
Industries and currently pays to Industries its separate return tax liability 
as defined in the Tax Sharing Agreement between Industries and its 
subsidiaries. 
 
      The components of the net deferred income tax liability at December 31, 
1997 and 1996 are as follows: 
 
<TABLE> 
<CAPTION> 
                                              1997           1996 
                                          ===========    ===========   
                                            (Dollars in thousands) 
 
<S>                                       <C>            <C> 
Deferred tax liabilities - 
 Accelerated depreciation 
  and other property differences          $   729,153    $   719,197 
 AFUDC-equity                                  35,282         37,713   
 Adjustment clauses                            33,829         40,700 
 Take-or-pay gas costs                            384            765  
 Other regulatory assets                       31,844         39,440 
 Reacquisition premium on debt                 17,607         18,921  
 
Deferred tax assets - 
 Deferred investment tax credits              (37,869)       (40,602) 
 Removal costs                               (144,111)      (131,718) 
 FERC Order No. 636 transition costs                0         (8,144) 
 Other postretirement/postemployment 
  benefits                                    (43,680)       (42,434) 
 Other, net                                    (5,516)       (10,433) 
                                          -----------    ----------- 
                                              616,923        623,405  
Less: Deferred income taxes related to  
 current assets and liabilities                13,987         26,300  
                                          -----------    ----------- 
Deferred income taxes - noncurrent        $   602,936    $   597,105 
                                          ===========    =========== 
 
</TABLE>  
 
      Federal and state income taxes as set forth in the Consolidated 
Statement of Income are comprised of the following: 
 
<TABLE>         
<CAPTION> 
                                                1997       1996       1995 
 
                                             =========  =========  ========= 
                                                  (Dollars in thousands) 
 
<S>                                          <C>        <C>        <C> 
Current income taxes - 
 Federal                                     $ 108,902  $  77,947  $ 102,047 
 State                                          16,816     12,314     15,210 
                                             ---------  ---------  --------- 
                                               125,718     90,261    117,257 
                                             ---------  ---------  --------- 
Deferred income taxes, net - 
 Federal                                        (7,998)    23,817     (3,190)
 State                                            (416)     2,300        (57) 
                                             ---------  ---------  --------- 
                                                (8,414)    26,117     (3,247) 
                                             ---------  ---------  --------- 
Deferred investment tax credits, net            (7,205)    (7,327)    (7,436) 
                                             ---------  ---------  --------- 
   Total utility operating income taxes        110,099    109,051    106,574 
 
Income tax applicable to non-operating 
 activities and income of subsidiaries          (3,536)      (936)    (3,216) 
                                             ---------  ---------  ---------
 Total income taxes                          $ 106,563  $ 108,115  $ 103,358 
                                             =========  =========  ========= 
 
</TABLE> 
 
      A reconciliation of total tax expense to an amount computed by applying 
the statutory federal income tax rate to pretax income is as follows: 
 
<TABLE> 
<CAPTION> 
                                                1997       1996       1995 
                                             =========  =========  ========= 
                                                  (Dollars in thousands) 
 
<S>                                          <C>        <C>        <C> 
Net income                                   $ 196,620  $ 197,310  $ 194,321 
Add - Income taxes                             106,563    108,115    103,358 
                                             ---------  ---------  --------- 
Net Income before income taxes               $ 303,183  $ 305,425  $ 297,679 
                                             =========  =========  ========= 
Amount derived by multiplying pretax  
 income by statutory rate                    $ 106,114  $ 106,899  $ 104,188 
 
Reconciling items multiplied by the 
 statutory rate: 
  Book depreciation over related tax  
   depreciation                                  4,072      4,621      4,018 
  Amortization of deferred investment tax 
   credits                                      (7,205)    (7,327)    (7,436) 
  State income taxes, net of federal income 
   tax benefit                                  10,247     10,240      9,577 
  Reversal of deferred taxes provided at 
   rates in excess of the current federal 
   income tax rate                              (4,063)    (6,644)    (5,665) 
  Other, net                                    (2,602)       326     (1,324)
                                             ---------  ---------  --------- 
    Total income taxes                       $ 106,563  $ 108,115  $ 103,358 
                                             =========  =========  ========= 
 
</TABLE> 
 
(7)   PENSION PLAN:  Industries has a noncontributory, defined benefit 
retirement plan covering substantially all employees of Northern Indiana.  
Benefits under the plan reflect the employees' compensation, years of service 
and age at retirement. 
 
      The plan's funded status as of December 31, 1997 and 1996 are as 
follows: 
 
<TABLE> 
<CAPTION> 
                                                           1997        1996 
                                                        =========   ========= 
                                                       (Dollars in thousands) 
 
<S>                                                    <C>          <C>        

   
Vested benefit obligation                              $(643,193)   $(534,416) 
Nonvested benefit                                       (114,262)    (103,284) 
                                                       ---------    ---------  
Accumulated benefit obligation                         $(757,455)   $(637,700) 
                                                       =========    =========  
 
Projected benefit obligation for service 
 rendered to date                                      $(843,049)   $(732,870) 
Plan assets at fair market value                         896,950      782,162  
                                                       ---------    ---------  
Plan assets in excess of projected                             
 benefit obligation                                       53,901       49,292  
Unrecognized transition obligation at December 31, 
 being recognized over seventeen years                    32,930       38,418  
Unrecognized prior service cost                           45,502       23,736 
Unrecognized gains                                       (51,191)     (67,111) 
                                                       ---------    --------- 
Prepaid pension costs                                  $  81,142    $  44,335 
                                                       =========    ========= 
 
</TABLE> 
 
      The accumulated benefit obligation is the present value of future 
pension benefit payments and is based on the plan benefit formula without 
considering expected future salary increases.  The projected benefit 
obligation considers estimated future salary increases.  Discount rates of 
7.00% and 7.75% and rates of increase in compensation levels of 4.50% and
5.50% were used to determine the accumulated benefit obligation and projected
benefit obligation at December 31, 1997 and 1996, respectively.  The increase
in the accumulated benefit obligation at December 31, 1997 is mainly caused by
the decrease in the discount rate from 7.75% to 7.00%.    
 
      The following items are the components of provisions for pensions for 
the years ended December 31, 1997, 1996 and 1995: 
 
<TABLE> 
<CAPTION> 
                                                1997       1996       1995 
                                              =========  =========  ========= 
                                                   (Dollars in thousands) 
 
<S>                                           <C>        <C>        <C> 
Service costs                                 $  13,325  $  15,877  $  11,865 
Interest costs                                   55,921     52,788     51,834 
Actual return on plan assets                   (122,537)   (86,622)  (133,793)
Amortization of transition obligation             5,488      5,488      5,488 
Other net amortization and deferral              55,384     26,233     85,124 
                                              ---------  ---------  --------- 
                                              $   7,581  $  13,764  $  20,518 
                                              =========  =========  ========= 
 
</TABLE> 
 
      Assumptions used in the valuation and determination of 1997, 1996 and 
1995 pension expense were as follows: 
 
<TABLE> 
<CAPTION> 
                                                 1997      1996      1995 
                                                ======    ======    ======   
 
<S>                                             <C>       <C>       <C> 
Discount rate                                    7.75%     7.25%     8.75% 
Rate of increase in compensation levels          5.50%     5.50%     5.50% 
Expected long-term rate of return on assets      9.00%     9.00%     9.00% 
 
</TABLE> 
 
      Plan assets are invested primarily in common stocks, bonds and notes. 
 
(8)   POSTRETIREMENT BENEFITS:  Northern Indiana provides certain health care 
and life insurance benefits for retired employees.  Substantially all of 
Northern Indiana's employees may become eligible for those benefits if they 
reach retirement age while working for Northern Indiana. The expected cost of 
such benefits is accrued during the employees' years of service. 
 
      Northern Indiana's rate-making has historically included the cost of
providing these benefits based on the related insurance premiums.  On
December 30, 1992, the Commission authorized the accrual method of accounting
for postretirement benefits for rate-making purposes consistent with SFAS No.
106 "Employers' Accounting for Postretirement Benefits Other Than Pensions,"
and authorized the deferral of the differences between the net periodic
postretirement benefit costs and the insurance premiums paid for such benefits
as a regulatory asset until such time as the accrual cost method could be
reflected in the rate-making process.

      On June 11, 1997, the Commission issued an order approving the inclusion
of accrual-based postretirement benefit costs in the rate-making process to
be effective February 1, 1997 for electric rates and March 1, 1997 for gas
rates.  These costs include an amortization of the existing regulatory asset
consistent with the remaining amortization period for the transition
obligation.  Northern Indiana discontinued its cost deferral and began
amortizing its regulatory asset concurrent with these dates. 
 
      The following table sets forth the plans' accumulated postretirement 
benefit obligation as of December 31, 1997 and December 31, 1996: 
 
<TABLE> 
<CAPTION> 
                                                 December 31,  December 31, 
                                                     1997          1996 
                                                 ============  ============ 
                                                   (Dollars in thousands) 
 
<S>                                               <C>          <C>           
Retirees                                         $    (85,356) $    (74,786) 
Fully eligible active plan participants               (24,614)      (18,441) 
Other active plan participants                        (85,033)     (101,710) 
                                                 ------------  ------------ 
Accumulated postretirement benefit obligation        (195,003)     (194,937)
Plan assets at fair value                               2,400             0
                                                 ------------  ------------
Funded status                                        (192,603)     (194,937)
Unrecognized transition obligation at 
 December 31, being recognized over twenty years      161,214       171,962
Amortization of prior service cost                      3,737             0
Unrecognized actuarial gain                           (99,262)      (88,784) 
                                                 ------------  ------------ 
Accrued liability for postretirement benefits    $   (126,914) $   (111,759) 
                                                 ============  ============ 
 
</TABLE> 
 
      A discount rate of 7% and a pre-Medicare medical trend rate of 8% 
declining to a long-term rate of 5% and a discount rate of 7.75% and a pre- 
Medicare medical trend rate of 9% declining to a long-term rate of 6% were 
used to determine the accumulated postretirement benefit obligation at 
December 31, 1997 and 1996, respectively. 
 
      The change in the accumulated postretirement benefit obligation
reflects the decrease in the discount rate from 7.75% to 7.00%, substantially
offset by favorable claim experience and reduction in the medical trend
rate assumption.

      Net periodic postretirement benefit costs before consideration of the
rate-making discussed above, for the years ended December 31, 1997, 1996 and
1995 include the following components: 
 
<TABLE> 
<CAPTION> 
                                                 1997       1996       1995 
                                              =========  =========  ========= 
                                                    (Dollars in thousands) 
 
<S>                                           <C>        <C>        <C>
Service costs                                 $   3,068  $   5,853  $   5,383 
Interest costs                                   14,523     17,973     18,606 
Amortization of transition obligation
 over twenty years                               10,747     11,348     11,348
Amortization of prior service cost                  279          0          0
Amortization of unrecognized actuarial gain      (5,778)      (497)    (2,164)
                                              ---------  ---------  --------- 
                                              $  22,839  $  34,677   $ 33,173 
                                              =========  =========  ========= 
  
</TABLE> 
 
      Assumptions used to determine net periodic postretirement costs were
as follows: 
 
<TABLE> 
<CAPTION> 
                                                 1997      1996      1995 
                                                ======    ======    ======   
 
<S>                                             <C>       <C>       <C> 
Discount rate                                    7.75%     7.25%     8.75% 
Rate of compensation increase                    5.50%     5.00%     5.00% 
 
</TABLE> 

      The pre-Medicare medical trend rates used for 1997, 1996 and 1995 were
8% declining to a long-term rate of 6%, 9% declining to a long-term rate of 6%
and 11% declining to a long-term rate of 7%, respectively.  The effect of a 1%
increase in the assumed health care cost trend rates for each future year would
increase the accumulated postretirement benefit obligation at December 31, 1997,
by approximately $23.2 million and increase the aggregate of the service and
interest cost components of plan costs by approximately $2.6 million for the
year ended December 31, 1997.  Amounts disclosed above could be changed
significantly in the future by changes in health care costs, work force
demographics, interest rates, or plan changes. 
 
(9)   AUTHORIZED CLASSES OF CUMULATIVE PREFERRED AND PREFERENCE STOCKS OF 
       NORTHERN INDIANA: 
 
      2,400,000 shares - Cumulative Preferred - $100 par value 
      3,000,000 shares - Cumulative Preferred - no par value 
      2,000,000 shares - Cumulative Preference - $50 par value 
                          (none outstanding) 
      3,000,000 shares - Cumulative Preference - no par value 
                          (none issued) 
 
      Note 10 sets forth the preferred stocks which are redeemable solely at 
the option of Northern Indiana and Note 11 sets forth the preferred stocks 
which are subject to mandatory redemption requirements or whose redemption is 
outside the control of Northern Indiana. 
 
      The Preferred shareholders of Northern Indiana have no voting rights, 
except in the event of default on the payment of four consecutive quarterly 
dividends, or as required by Indiana law to authorize additional preferred 
shares, or by the Articles of Incorporation in the event of certain merger 
transactions.        
 
(10)  PREFERRED STOCKS, REDEEMABLE SOLELY AT OPTION OF NORTHERN INDIANA (SEE 
NOTE 9): 
 
      The redemption prices at December 31, 1997 for the cumulative preferred 
stock of Northern Indiana, which is redeemable solely at the option of 
Northern Indiana, in whole or in part, at any time upon thirty days' notice, 
are as follows: 
 
<TABLE> 
<CAPTION> 
                                                       Redemption 
                                                          Price 
                 Series                                Per Share 
=============================================          ========== 
Cumulative preferred stock - $100 par value - 
 
<S>                                                    <C> 
 4-1/4%                                                 $ 101.20 
 4-1/2%                                                 $ 100.00 
 4.22%                                                  $ 101.60 
 4.88%                                                  $ 102.00 
 7.44%                                                  $ 101.00 
 7.50%                                                  $ 101.00 
 
<CAPTION> 
Cumulative preferred stock - no par value - 
 
<S>                                                    <C> 
 Adjustable rate (6.00% at December 31, 1997), 
  Series A (stated value $50 per share)                 $  50.00 
 
</TABLE> 
 
(11)  REDEEMABLE PREFERRED STOCKS (SEE NOTE 9): 
 
      The redemption prices at December 31, 1997, as well as sinking fund 
provisions, for the cumulative preferred stock subject to mandatory 
redemption requirements, or whose redemption is outside the control 
of Northern Indiana, are as follows: 
 
<TABLE> 
<CAPTION> 
                                                  Sinking Fund Or Mandatory 
Series      Redemption Price Per Share              Redemption Provisions  
======     ============================        ============================== 
Cumulative preferred stock - $100 par value - 
 
<S>        <C>                                 <C> 
 8.85%     $101.11, reduced periodically       12,500 shares on or before 
                                                April 1. 
  
 8.35%     $103.69, reduced periodically       3,000 shares on or before 
                                                July 1; increasing to 6,000 
                                                shares beginning in 2004; 
                                                noncumulative option to 
                                                double amount each year. 
 
 7-3/4%    $104.23, reduced periodically       2,777 shares on or before 
                                                December 1; noncumulative 
                                                option to double amount  
                                                each year. 
 
<CAPTION> 
Cumulative preferred stock - no par value - 
 
<S>        <C>                                 <C>     
 6.50%     $100.00 on October 14, 2002         430,000 shares on 
                                                October 14, 2002. 
 
</TABLE> 
 
      Sinking fund requirements with respect to redeemable preferred stocks 
outstanding at December 31, 1997 for each of the four years subsequent to 
December 31, 1998, are as follows: 
 
<TABLE> 
<CAPTION> 
Year Ending December 31, 
======================== 
 
<S>          <C> 
1999         $ 1,827,700 
2000         $ 1,827,700 
2001         $ 1,827,700 
2002         $ 1,827,700 
 
</TABLE> 
 
(12)  COMMON SHARE DIVIDEND:  Northern Indiana's Indenture provides that it 
will not declare or pay any dividends on any class of capital stock (other 
than preferred or preference stock) except out of earned surplus or net 
profits of Northern Indiana.  At December 31, 1997 Northern Indiana had 
approximately $146.3 million of retained earnings (earned surplus) available 
for the payment of dividends.  Future dividends will depend upon adequate 
retained earnings, adequate future earnings and the absence of adverse 
developments. 
 
(13)  COMMON SHARES:  Effective with the exchange of common shares on March 3, 
1988, Northern Indiana's common shares are wholly-owned by Industries.  On
December 16, 1997, the Industries Board of Directors authorized a two-for-one
stock split of Industries' common stock.  Industries' shareholders  received
one additional common share for each common share held.  The stock split was
paid February 20, 1998, to shareholders of record at the close of business on
January 30, 1998.  Accordingly, references in the Annual Report to Industries'
common shares reported for the period including per share amounts and stock
option data of Industries' common stock have been restated to reflect the
two-for-one stock split as if it had occured at the beginning of the earliest
period.
                                  
(14)  LONG-TERM INCENTIVE PLAN:  Industries has two long-term incentive plans 
for key management employees, including management of Northern Indiana, 
that were approved by shareholders on April 13, 1988 (1988 Plan) and April 13, 
1994 (1994 Plan), each of which provides for the issuance of up to 5.0 million 
of Industries common shares to key employees through 1998 and 2004,  
respectively.  At December 31, 1997, there were 9,156 shares and 3,879,500 
shares reserved for future awards under the 1988 Plan and 1994 Plan,  
respectively.  The 1988 Plan and 1994 Plan permit the following types of 
grants, separately or in combination: nonqualified stock options, incentive 
stock options, restricted stock awards, stock appreciation rights, and 
performance units.  No incentive stock options or performance units were 
outstanding at December 31, 1997.  Under both Plans, the exercise price of 
each option equals the market price of Industries' common shares on the date 
of grant.  Each option's maximum term is ten years and vests one year from 
the date of grant. 
 
      The stock appreciation rights (SARs) may be exercised only in tandem 
with stock options on a one-for-one basis and are payable in cash, Industries' 
common shares, or a combination thereof.  Restricted stock awards are 
restricted as to transfer and are subject to forfeiture for specific periods 
from the date of grant.  Restrictions on shares awarded in 1995 lapse five 
years from date of grant and vesting is variable from 0% to 200% of the 
number awarded, subject to specific earnings per share and stock appreciation 
goals.  Restrictions on shares awarded in 1997 and 1996 lapse two years from
date of grant and vesting is variable from 0% to 100% of the number awarded,
subject to specific performance goals.  If a participant's employment is
terminated prior to vesting other than by reason of death, disability or
retirement, restricted shares are forfeited.  There were 542,666, 524,000 and
661,000 restricted shares outstanding at December 31, 1997, 1996 and 1995,
respectively. 
 
      Northern Indiana accounts for its allocable portion of these plans 
under Accounting Principles Board Opinion No. 25, under which no compensation 
cost has been recognized for non-qualified stock options.  The compensation 
cost that has been recognized in the Consolidated Statement of Income for 
restricted stock awards was $0.7 million and $0.9 million for the years ended 
December 31, 1997 and 1996, respectively.  Had compensation cost for stock 
options been determined consistent with SFAS No. 123 "Accounting for 
Stock-Based Compensation," Northern Indiana's net income would have been 
reduced to the following pro forma amounts. 
 
<TABLE> 
<CAPTION> 
                                               Year            Year    
                                              Ended           Ended 
                                           December 31,    December 31, 
                                               1997            1996 
                                           ============    ============ 
                                              (Dollars in thousands) 
 
<S>                                        <C>             <C> 
Net Income: 
 As reported                               $ 196,620       $ 197,310 
 Pro forma                                 $ 195,770       $ 196,663 
 
</TABLE> 
 
      The fair value of each option granted used to determine pro forma net 
income is estimated as of the date of grant using the Black-Scholes option 
pricing model with the following weighted average assumptions used for grants 
in the years ended December 31, 1997 and 1996, respectively: risk-free 
interest rate of 6.29% and 6.39%, expected dividend yield of $0.87 and $0.84 
per share, expected option term of five and one-quarter years and five years,
respectively, and expected volatility of 12.7% and 13.2%.  The weighted
average fair value of options granted to all plan participants was $2.66 and
$2.50 for the years ended December 31,1997 and 1996, respectively.  There were
533,600 and 556,600 non-qualified stock options granted to all plan
participants for the years ended December 31, 1997 and 1996, respectively. 
 
(15)  LONG-TERM DEBT:  The sinking fund requirements of long-term debt 
outstanding at December 31, 1997 (including the maturity of first mortgage 
bonds: Series T, 7-1/2%, due April 1, 2002; and the medium-term notes due 
from March 20, 2000 to June 12, 2002), for each of the four years subsequent 
to December 31, 1998 are as follows: 
 
<TABLE> 
<CAPTION> 
Year Ending December 31, 
======================== 
 
<S>         <C> 
1999        $  2,000,000 
2000        $158,000,000 
2001        $ 19,000,000 
2002        $ 59,000,000 
 
</TABLE> 
 
      Unamortized debt expense, premium and discount on long-term debt 
applicable to outstanding bonds are being amortized over the lives of such 
bonds.  Reacquisition premiums are being deferred and amortized.  These
premiums are not earning a return during the recovery period.
 
      Northern Indiana's Indenture dated August 1, 1939, as amended and 
supplemented, securing the first mortgage bonds issued by Northern Indiana, 
constitutes a direct first mortgage lien upon substantially all property and 
franchises, other than expressly excepted property, owned by Northern 
Indiana. 
 
      On May 28, 1997, Northern Indiana was authorized to issue and sell up to
$217,692,000 of its Medium-Term Notes, Series E, with various maturities, for
purposes of refinancing certain first mortgage bonds and medium-term notes.
As of December 31, 1997, $139.0 million of the medium-term notes had been
issued with various interest rates and maturities.  The proceeds from these
issuances were used to pay short-term debt incurred to redeem its First
Mortgage Bonds, Series N, and to pay at maturity various issues of Medium-Term
Notes, Series D.
 
(16)  CURRENT PORTION OF LONG-TERM DEBT:  At December 31, 1997 and 1996, 
Northern Indiana's current portion of long-term debt due within one year was 
as follows: 
 
<TABLE> 
<CAPTION> 
                                                 December 31,   December 31, 
                                                     1997           1996 
                                                 ============   ============ 
                                                    (Dollars in thousands) 
 
<S>                                              <C>            <C> 
NORTHERN INDIANA PUBLIC SERVICE COMPANY: 
 First mortgage bonds - 
  Series O, 6-3/8% - due September 1, 1997       $          0   $     25,747
  Series P, 6-7/8% - due October 1, 1998               14,509              0
 Medium-term notes - 
  Interest rates of 5.83% and 5.95% with a 
   weighted average interest rate of 5.86% 
   and various maturities between  
   April 6, 1998 and April 13, 1998                    35,000         40,000
 Sinking funds due within one year                      1,500          1,500
                                                 ------------   ------------ 
 Total current portion of long-term debt         $     51,009   $     67,247 
                                                 ============   ============ 
 
</TABLE> 
 
(17)  SHORT-TERM BORROWINGS:  Northern Indiana uses commercial paper to fund
short-term working capital requirements. 
   
      Northern Indiana has a $250 million revolving Credit Agreement with
several banks which terminates August 19, 1999.  As of December 31, 1997,
there were no borrowings outstanding under this agreement.  In addition,
Northern Indiana has $14.2 million in lines of credit which run to May 31,
1998.  The credit pricing of each of the lines varies from either the lending
banks' commercial prime or market rates.  Northern Indiana has agreed to
compensate the participating banks with arrangements that vary from no
commitment fees to a combination of fees which are mutually satisfactory to
both parties.  As of December 31, 1997, there were no borrowings under these
lines of credit.  The Credit Agreement and lines of credit are also available
to support the issuance of commercial paper.

      Northern Indiana also has $273.5 million of money market lines of 
credit.  As of December 31, 1997 and 1996, $47.5 million and $79.0 million 
of borrowings, respectively, were outstanding under these lines of credit. 
 
      Northern Indiana has a $50 million uncommitted finance facility.  At 
December 31, 1997, there were no borrowings outstanding under this facility. 
 
      At December 31, 1997 and 1996, Northern Indiana's short-term borrowings 
were as follows: 
 
<TABLE> 
<CAPTION> 
                                                 December 31,   December 31, 
                                                     1997           1996
                                                 ============   ============ 
                                                    (Dollars in thousands) 
 
<S>                                              <C>            <C> 
NORTHERN INDIANA PUBLIC SERVICE COMPANY: 
 Commercial paper -     
  Weighted average interest rate of 6.16% 
   at December 31, 1997                          $     71,500   $    193,905 
 Notes payable -                          
  Issued at interest rates between 6.03% 
   and 6.38% with a weighted average 
   interest rate of 5.86% and various 
   maturities between January 9, 1998 and 
   January 23, 1998                                    47,500         79,000 
                                                 ------------   ------------ 
 Total short-term borrowings                     $    119,000   $    272,905 
                                                 ============   ============ 
 
</TABLE> 
                                             
(18)  OPERATING LEASES:  On April 1, 1990, Northern Indiana entered into a 
twenty-year agreement for the rental of office facilities from NIPSCO 
Development Company, Inc., a subsidiary of Industries, at a current annual 
rental payment of approximately $3.4 million. 
 
      The following is a schedule, by years, of future minimum rental 
payments, excluding those to associated companies, required under operating 
leases that have initial or remaining noncancelable lease terms in excess of 
one year as of December 31, 1997: 
 
<TABLE> 
<CAPTION> 
Year Ending December 31,     (Dollars in thousands) 
========================     ====================== 
 
<S>                          <C> 
1998                                $   4,357  
1999                                    3,276 
2000                                    3,055 
2001                                    3,055 
2002                                    3,055 
Later years                            33,143 
                                    --------- 
Total minimum payments required     $  49,941 
                                    ========= 
 
</TABLE> 
 
      The consolidated financial statements include rental expense for all 
operating leases as follows: 
 
<TABLE> 
<CAPTION> 
Year Ending December 31,     (Dollars in thousands) 
========================     ====================== 
 
<S>                          <C> 
1997                                $   7,675 
1996                                $   9,249 
1995                                $  10,824 
 
 
</TABLE>  
 
(19)  COMMITMENTS:  Northern Indiana estimates that approximately $762 
million will be expended for construction purposes for the period from 
January 1, 1998 to December 31, 2002.  Substantial commitments have been 
made by Northern Indiana in connection with this program. 
 
      Northern Indiana has entered into a service agreement with Pure Air, a 
general partnership between Air Products and Chemicals, Inc. and Mitsubishi 
Heavy Industries America, Inc., under which Pure Air provides scrubber 
services to reduce sulfur dioxide emissions for Units 7 and 8 at Bailly 
Generating Station.  Services under this contract commenced on June 15, 
1992, with annual charges of approximately $20 million.   The agreement 
provides that, assuming various performance standards are met by Pure Air, 
a termination payment would be due if Northern Indiana terminates the 
agreement prior to the end of the twenty-year contract period. 
 
      Northern Indiana has entered into an agreement with IBM to perform all
data center, application development and maintenance, and desktop management
for Northern Indiana.
 
(20)  FAIR VALUE OF FINANCIAL INSTRUMENTS:  The following methods and 
assumptions were used to estimate the fair value of each class of financial 
instruments for which it is practicable to estimate that value: 
 
      Cash and cash equivalents: The carrying amount approximates fair value 
       because of the short maturity of those instruments. 
 
      Investments: The fair value of some investments is estimated based on 
       market prices for those or similar investments. 
 
      Long-term debt/Preferred stock: The fair value of long-term debt and 
       preferred stock is estimated based on the quoted market prices for the 
       same or similar issues or on the rates offered to Northern Indiana for 
       securities of the same remaining maturities.  Certain premium costs 
       associated with the early settlement of long-term debt are not taken 
       into consideration in determining fair value. 
 
      The carrying values and estimated fair values of Northern Indiana's 
financial instruments are as follows: 
 
<TABLE> 
<CAPTION> 
                            December 31, 1997         December 31, 1996 
                         ----------------------    ---------------------- 
                          Carrying   Estimated      Carrying   Estimated 
                           Amount    Fair Value      Amount    Fair Value 
                         ==========  ==========    ==========  ========== 
                                       (Dollars in thousands) 
 
<S>                      <C>         <C>           <C>         <C> 
Cash and cash 
 equivalents             $    9,800  $    9,800    $    8,279  $    8,279   
Investments              $      256  $      256    $      256  $      256 
Long-term debt 
 (including current 
  portion)               $1,130,505  $1,128,851    $1,059,255  $1,026,743 
Preferred stock          $  141,792  $  135,317    $  144,200  $  126,379 
 
</TABLE> 
 
      Northern Indiana is subject to regulation and gain or losses may be 
included in rates over a prescribed amortization period, if in fact settled at 
amounts approximating those above. 
 
(21)  CUSTOMER CONCENTRATIONS:  Northern Indiana is a public utility operating 
company supplying natural gas and electrical energy in the northern third of 
Indiana.  Although Northern Indiana has a diversified base of residential and 
commercial customers, a substantial portion of its electric and gas industrial 
deliveries are dependent upon the basic steel industry.  The following table 
shows the basic steel industry percentage of gas revenue (including 
transportation services) and electric revenue for 1997, 1996 and 1995. 
 
<TABLE> 
<CAPTION> 
Basic Steel Industry                                1997     1996     1995 
====================                               ======   ======   ====== 
 
<S>                                                <C>      <C>      <C> 
Gas revenue percent                                   5 %      2 %      6 % 
Electric revenue percent                             20 %     22 %     22 % 
 
</TABLE> 
 
(22)  QUARTERLY FINANCIAL DATA: 
 
The following data summarize certain operating results for each of the 
quarters of 1997 and 1996: 
 
<TABLE> 
<CAPTION> 
            1997 Quarters Ended   March 31    June 30   Sept. 30   Dec. 31 
                                 ========== ========== ========== ========== 
                                            (Dollars in thousands) 
 
<S>                              <C>        <C>        <C>        <C> 
Operating revenues               $  551,498 $  352,595 $  360,727 $  487,562 
Operating expenses and taxes        463,646    300,026    305,224    402,366 
                                 ---------- ---------- ---------- ---------- 
Operating income                     87,852     52,569     55,503     85,196 
Other income (deductions)              (409)    (1,036)    (1,041)    (1,173) 
  
Interest charges                     20,111     19,805     20,463     20,462 
                                 ---------- ---------- ---------- ---------- 
Net income                           67,332     31,728     33,999     63,561 
 
Dividend requirements on 
 preferred stock                      2,167      2,128      2,123      2,121 
                                 ---------- ---------- ---------- ---------- 
Balance available for 
 common shares                   $   65,165 $   29,600 $   31,876 $   61,440 
                                 ========== ========== ========== ========== 
 
 
<CAPTION> 
            1996 Quarters Ended   March 31    June 30   Sept. 30   Dec. 31 
                                 ========== ========== ========== ========== 
                                             (Dollars in thousands) 
 
<S>                              <C>        <C>        <C>        <C> 
Operating revenues               $  550,309 $  352,729 $  348,622 $  502,445 
Operating expenses and taxes        458,308    303,022    291,608    420,629 
                                 ---------- ---------- ---------- ---------- 
Operating income                     92,001     49,707     57,014     81,816 
Other income (deductions)              (994)      (953)     2,196         (9) 
Interest charges                     20,779     20,630     21,013     21,046 
                                 ---------- ---------- ---------- ---------- 
Net income                           70,228     28,124     38,197     60,761 
 
Dividend requirements on 
 preferred stock                      2,199      2,178      2,174      2,161 
                                 ---------- ---------- ---------- ---------- 
Balance available for 
 common shares                   $   68,029 $   25,946 $   36,023 $   58,600 
                                 ========== ========== ========== ==========  
</TABLE> 
 
(23) SEGMENTS OF BUSINESS:  Northern Indiana is a public utility operating 
engaged in distributing natural gas and electric energy.  The reportable 
items for gas and electric segments for the years 1997, 1996 and 1995 are as 
follows: 
 
<TABLE> 
<CAPTION>                                                              
                                             1997        1996        1995 
                                          ==========  ==========  ========== 
                                                (Dollars in thousands) 
 
<S>                                       <C>         <C>         <C> 
Operating information - 
 Gas operations:  
  Operating revenues                      $  735,299  $  731,874  $  633,355 
  Operating expenses, excluding 
   provision for utility income taxes        655,867     642,913     555,072 
                                           ----------  ----------  ---------- 
  Operating income before utility
   income taxes                               79,432      88,961      78,283 
                                          ----------  ----------  ----------  
Electric operations:  
  Operating revenues                       1,017,083   1,022,231   1,030,923 
  Operating expenses, excluding 
   provision for utility income taxes        705,296     721,603     723,159 
                                          ----------  ----------  ---------- 
  Operating income before utility 
   income taxes                              311,787     300,628     307,764 
                                          ----------  ----------  ---------- 
 Total                                       391,219     389,589     386,047 
 Other income (deductions)                    (3,659)        240      (3,619)
 Less-interest charges                        80,841      83,468      81,533 
 Less-provision for utility income taxes     110,099     109,051     106,574 
                                          ----------  ----------  ---------- 
Net income per Consolidated 
 Statement of Income                         196,620     197,310     194,321 
 
Dividend requirements on 
 preferred stocks                              8,539       8,712       9,046 
                                          ----------  ----------  ---------- 
Balance available for common shares       $  188,081  $  188,598  $  185,275 
                                          ==========  ==========  ========== 
 
Other information- 
 Depreciation and amortization expense: 
  Electric                                $  153,843  $  146,444  $  139,432 
  Gas                                         69,182      65,101      58,827 
                                          ----------  ----------  ---------- 
      Total                               $  223,025  $  211,545  $  198,259 
                                          ==========  ==========  ========== 
  
 Construction expenditures: 
  Electric                                $  115,012  $  146,660  $  132,273 
  Gas                                         59,219      51,563      53,287 
                                          ----------  ----------  ---------- 
      Total                               $  174,231  $  198,223  $  185,560 
                                          ==========  ==========  ========== 
 
Investment information- 
 Identifiable assets (a): 
  Electric                                $2,507,905  $2,575,995  $2,586,121 
  Gas                                        833,106     867,891     768,736 
                                          ----------  ----------  ---------- 
      Total                                3,341,011   3,443,886   3,354,857 
 Other corporate assets                      333,903     330,394     251,342 
                                          ----------  ----------  ---------- 
      Total assets                        $3,674,914  $3,774,280  $3,606,199 
                                          ==========  ==========  ========== 
 
<FN>     
(a)  Utility plant less accumulated provision for depreciation and 
amortization, material and supplies, electric production fuel, natural gas in 
storage, fuel and gas cost adjustment clauses, unamortized R. M. Schahfer Unit 
17 and 18 carrying charges and deferred depreciation, Bailly scrubber carrying 
charges and deferred depreciation, and FERC Order No. 636 transition costs. 
 
</FN> 
</TABLE> 
 
ITEM 9.  CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND 
FINANCIAL DISCLOSURE. 
 
     None 
 
ITEM 10.  DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT 
 
<TABLE>     
<CAPTION>    
                   EXECUTIVE OFFICERS OF THE REGISTRANT 
                   ------------------------------------ 
                              Years with                  
                              Northern
     Name               Age    Indiana       Offices Held in Past 5 Years
=====================   ====  ==========  ================================== 
 
<S>                     <C>   <C>         <C> 
Gary L. Neale           58        8       Chairman, President and Chief    
                                           Executive Officer since March 1993.
                                           President and Chief Operating
                                           Officer prior thereto.
                                         
Stephen P. Adik         54       10       Executive Vice President and Chief
                                           Financial Officer since April 1997.
                                           Executive Vice President and Chief
                                           Financial Officer, Finance and
                                           Administration from April 1996 to
                                           March 1997.  Executive Vice
                                           President and Chief Financial
                                           Officer from April 1994 to March
                                           1996.  Senior Vice President
                                           and General Manager, Finance and
                                           Accounting prior thereto.
  
Patrick J. Mulchay      56       35       Executive Vice President and Chief
                                           Operating Officer since July 1996.
                                           Executive Vice President and Chief
                                           Operating Officer, Electric from
                                           January 1994 to June 1996.  Vice
                                           President and General Manager, Gas
                                           Operations prior thereto.       

 
Jeffrey W. Yundt        52       18       Executive Vice President since July
                                           1996.  Executive Vice President
                                           and Chief Operating Officer, Gas
                                           from January 1994 to June 1996.
                                           Vice President and General Manager,
                                           Energy Distribution prior thereto.


Joseph L. Turner, Jr.   61       12       Senior Vice President, Major
                                           Accounts since July 1996.  Group
                                           Vice President, Major Accounts
                                           from January 1996 to June 1996.
                                           Group Vice President, Industrial
                                           Marketing and Economic Development
                                           from January 1994 to December 1995.
                                           Vice President and General Manager,
                                           Corporate Marketing prior thereto.
                                
James K. Abcouwer       44        3       Senior Vice President, Commercial
                                           Operations since February 1998.
                                           Vice President and General Manager,
                                           Customer Services and Distribution.
                                           from July 1996 to January 1998.
                                           Vice President, Gas Supply from
                                           June 1994 to June 1996.
  
Jerry L. Godwin         55        3       Vice President and General Manager,
                                           Electric Supply since July 1996.
                                           Vice President, Electric Supply
                                           from November 1994 to June 1996.
 
Robert W. Schacht       47       25       Vice President, Distribution
                                           Operations since July 1996.  Vice
                                           President, Gas Service and Sales
                                           from January 1994 to June 1996.
                                           Director, West Region prior thereto.
 
Francis P. Girot, Jr.   53       53       Treasurer                  
 
David J. Vajda          42       20       Controller since July 1996.
                                           Director, Strategic and Business
                                           Planning from January 1996 to June
                                           June 1996.  Auditor prior thereto.
 
Nina M. Rausch          54       20       Secretary
 
</TABLE> 
 
      Throughout the past five years, each of the executive officers has been 
continuously active in the business of Northern Indiana except as follows:  
Prior to June 27, 1994, James K. Abcouwer was Vice President of Natural Gas 
of GSC - Energy Corporation; and prior to October 31, 1994, Jerry L. Godwin was 
Senior Vice President, Wholesale Marketing and Power Supply of Public Service 
Company of New Mexico.
 
      The following chart gives information about incumbent directors of 
Northern Indiana.  All of Northern Indiana's directors are also directors of 
Industries.  Upon recommendation of the Nominating and Compensation Committee, 
the Board of Directors has nominated for reelection as directors Steven C.
Beering and Denis E. Ribordy, each for a term of three years to be voted upon
at the annual meeting of common shareholders of Industries to be held April 8,
1998.  In addition, upon recommendations of the Nominating and Compensation
Committee, the Board of Directors has nominated Carolyn Y. Woo to replace
Ernestine M. Raclin, who is retiring with the grateful thanks of the Board of
Directors at the expiration of her term.  
                      
<TABLE> 
<CAPTION> 
                                                            Has Been 
Name, Age and Principal Occupations for Past                Director 
Five Years and Present Directorships Held                     Since 
============================================               ========== 
 
DIRECTORS WHOSE TERMS EXPIRE IN 1998 
 
<S>                                                        <C> 
 Steven C. Beering, 65-President of Purdue University,        1986 
  West Lafayette, Indiana.  Dr. Beering is also a 
  director of Arvin Industries, Inc., American United 
  Life Insurance Company and Eli Lilly and Company. 
 
 Ernestine M. Raclin, 70-Chairman of the Board, 1st           1983 
  Source Corporation, a bank holding company, and 1st
  Source Bank, South Bend, Indiana. 
 
 Denis E. Ribordy, 68-Vice Chairman of the Chicago Motor      1981 
  Club, Chicago, Illinois; retired President of Ribordy 
  Drugs, Inc., Merrillville, Indiana, a retail drugstore 
  chain.  Mr. Ribordy is also a director of Mercantile 
  National Bank of Indiana. 
 
<CAPTION> 
DIRECTORS WHOSE TERMS EXPIRE IN 1999 

<S>                                                        <C> 
 Ian M. Rolland, 64-Chairman and Chief Executive Officer,     1978 
  and President since January 1, 1997, of Lincoln National
  Corporation, Fort Wayne, Indiana, an insurance and
  financial services firm.  Mr. Rolland is also a director
  of Lincoln National Corporation, Tokheim Corporation,
  and Norwest Corporation. 
 
 Edmund A. Schroer, 70-Retired March 1, 1993 as Chairman,     1977 
  President and Chief Executive Officer of Industries and
  Chairman and Chief Executive Officer of Northern Indiana. 
 
 John W. Thompson, 48-General Manager-IBM North America of    1993
  IBM Corporation, White Plains, New York.  IBM is a
  worldwide corporation, whose offerings include services,
  software systems, products and technologies.  Mr.
  Thompson is also a director of Fortune Brands Inc.
<CAPTION>
DIRECTORS WHOSE TERMS EXPIRE IN 2000 
 
<S>                                                        <C> 
 Arthur J. Decio, 67-Chairman of the Board and Chief          1991 
  Executive Officer and Director of Skyline Corporation, 
  Elkhart, Indiana, a manufacturer of manufactured  
  housing and recreational vehicles.  Mr. Decio is also a 
  director of Quality Dining, Inc. and St. Joseph 
  Capital Corporation. 
 
 Gary L. Neale, 58-Chairman, President and Chief Executive    1991 
  Officer of Industries and of Northern Indiana since 
  March 1, 1993; prior thereto, Executive Vice President 
  of Industries, and President and Chief Operating Officer 
  of Northern Indiana.  Mr. Neale is also a director of 
  Modine Manufacturing Company and Chicago Bridge and
  Iron Company. 
 
 Robert J. Welsh, 62-Chairman, President and Chief            1988 
  Executive Officer of Welsh, Inc., Merrillville, Indiana,
  a marketer of petroleum products through convenience 
  stores and travel centers.  Mr. Welsh is also a director 
  of NBD Indiana, Inc. 
 
</TABLE> 
                                    
ITEM 11.  EXECUTIVE COMPENSATION.
 
      SUMMARY.  The following table summarizes all annual and long-term 
compensation for services to Industries and its subsidiaries, including 
Northern Indiana, for the years 1997, 1996 and 1995 awarded to, earned by or 
paid to the Chief Executive Officer of Industries during 1997 and the four 
other most highly compensated officers of Industries (Named Officers). 
 
<TABLE> 
<CAPTION> 
SUMMARY COMPENSATION TABLE 
                                                Annual Compensation (1) 
                                        ----------------------------------- 
                                                                    Other 
                                                                    annual 
                                                                    compen- 
                                               Salary     Bonus     sation 
Name and principal position             Year    ($)      ($)(2)     ($)(3) 
===========================             ====  ========  ========   ======== 
 
<S>                                     <C>   <C>       <C>        <C> 
Gary L. Neale, Chairman,                1997  $520,000  $390,000   $ 6,711 
 President and Chief                    1996   460,000   236,624     5,161 
 Executive Officer                      1995   460,000   286,120     2,746 
 
Stephen P. Adik, Executive Vice         1997   250,000   171,250     2,575 
 President, Chief Financial             1996   205,000    84,952     9,103 
 Officer and Treasurer                  1995   205,000   107,010     2,400 
 
Patrick J. Mulchay, Executive           1997   210,000   150,675       851 
 Vice President and Chief               1996   175,000    72,520     1,614
 Operating Officer - Northern           1995   175,000    91,350       756
 Indiana Public Service Company
 
Jeffrey W. Yundt, Executive             1997   210,000   143,850     8,905 
 Vice President and Chief               1996   175,000    72,520     1,671 
 Operating Officer - Energy             1995   175,000    91,350     1,217 
 Services 
 
Joseph L. Turner, Senior Vice           1997   180,000   113,675(6)  1,175 
 President                              1996   160,000   182,958     5,144 
                                        1995   160,000    66,816     1,302 
 
<CAPTION> 
                                             Long Term Compensation 
                                             ---------------------- 
                                             Awards          Payouts 
                                          -------------------- --------  
                                               Secur-   Long-Term 
                                               ities     In-        All  
                                               Under-    centive   other 
                                               lying     Plan      compen- 
                                               Options/  Payouts   sation  
Name and principal position             Year   SARs(#)   ($)(4)     ($)(5) 
===========================             ====  ========  ========  ======= 
 
<S>                                      <C>      <C>       <C>       <C> 
Gary L. Neale, Chairman,                1997    50,000  $      0  $42,993  
 President and Chief                    1996    50,000   567,188   40,129 
 Executive Officer                      1995    40,000   527 812   36,077 
 
Stephen P. Adik, Executive Vice         1997    20,000         0    5,673  
 President, Chief Financial             1996    20,000   283,594    5,919 
 Officer and Treasurer                  1995    20,000   263,906    5,998 
 
Patrick J. Mulchay, Executive           1997    20,000         0    7,506  
 Vice President and Chief               1996    20,000   283,594    7,717 
 Operating Officer - Northern           1995    20,000    87,968    8,368
 Indiana Public Service Company
 
Jeffrey W. Yundt, Executive             1997    20,000         0    3,693 
 Vice President and Chief               1996    20,000   283,594    3,824 
 Operating Officer-Energy               1995    20,000   263,906    3,947 
 Services 
 
Joseph L. Turner, Senior                1997     8,000         0    7,599  
 Vice President                         1996    10,000   283,594    8,100 
                                        1995    10,000   263,906    8,567 
 
<FN> 
  (1) Compensation deferred at the election of Named Officer is reported 
      in the category and year in which such compensation was earned. 
 
  (2) All bonuses are paid pursuant to the Senior Management Incentive Plan 
      (Bonus Plan), except for a portion of the Bonus Plan paid to Joseph 
      L. Turner, which is described in Note 6.  The Bonus Plan is designed 
      to supplement a conservative base salary with incentive bonus payments 
      if targeted financial performance is attained.  The 1997 target 
      aggregate payout for the Bonus Plan for the Named Officers was 
      $886,800, which was less than the actual aggregate payout for the
      Named Officers. 
 
  (3) In accordance with applicable Securities and Exchange Commission 
      rules, the amounts shown for each of the Named Officers do not 
      include perquisites and other personal benefits, as the aggregate 
      amount of such benefits is less than the lesser of $50,000 and 
      10% of the total salary and bonus of such Named Officer. 
 
  (4) The payouts shown are based on the value, at date of vesting, of 
      restricted shares awarded under Industries' 1988 Long-Term 
      Incentive Plan (Incentive Plan) which vested during the years shown. 
      Vesting was based on meeting certain performance requirements.  Total 
      restricted shares held (assuming 100% vesting) and aggregate market 
      value at December 31, 1997 (based on the average of the high and low 
      sale prices of the Common Shares on that date as reported in "The 
      Wall Street Journal") for the Named Officers were as follows: Mr. 
      Neale, 124,000 shares valued at $3,072,875; Mr. Adik 48,000 shares 
      valued at $1,189,500: Messrs. Mulchay and Yundt, 40,000 shares each 
      valued at $991,250; and Mr. Turner, 28,056 shares (includes 4,056
      shares purchased pursuant to the PE Plan described in footnote 6)
      valued at $695,263.  Dividends on the restricted shares are paid to
      the Named Officers. 
 
  (5) The Chairman, President, and Chief Executive Officer, the 
      Executive Vice Presidents and certain Vice Presidents of Industries 
      and Northern Indiana have available to them a supplemental life 
      insurance plan which provides split-dollar coverage of up to 3.5 
      times base compensation as of commencement of the plan in 1991 and 
      could provide life insurance coverage after retirement if there is 
      adequate cash value in the respective policy.  "All other
      compensation" represents Industries contributions to the 401(k) Plan
      and the dollar value of the benefit to the Named Officers of the
      remainder of the premiums paid by Industries during 1997 on behalf of
      the Named Officers under the supplemental life insurance plan, as
      follows: Mr. Neale-$1,055 401(k) Plan, $40,116 premium value and
      $1,822 term insurance cost; Mr. Adik - $1,055 401(k) Plan, $4,035
      premium value and $583 term insurance cost; Mr. Mulchay, $344 401(k)
      Plan, $6,628 premium value and $534 term insurance cost; Mr. Yundt,
      $3,287 premium value and $406 term insurance cost and Mr. Turner -
      $6,654 premium value and $945 term insurance cost.  The value of the
      life insurance premiums paid by Industries in excess of term insurance
      cost on behalf of the Named Officers under the supplemental life
      insurance plan has been restated for all periods in accordance with the
      present value interest-free loan method.  
 
  (6) Joseph L. Turner is also President of Primary Energy, Inc., a 
      subsidiary of Industries, and participates in the Primary Energy 
      Incentive Plan ("PE Plan").  The PE Plan provides for a bonus based 
      on meeting certain financial performance criteria of Primary Energy. 
      Under the PE Plan, $41,043 of Mr. Turner's bonus for 1997 was used 
      to purchase Common Shares of Industries on or about February 27, 
      1998, the date of payment of the bonus.  The PE Plan requires that 
      the Common Shares are restricted for a period of five years, subject 
      to continued employment, except that they vest earlier in the event
      of the employee's retirement, death or disability.    
       
</FN> 
</TABLE>                      
 
      OPTION GRANTS IN 1997.  The following table sets forth grants of options 
to purchase Common Shares made during 1997 to the Named Officers.  No stock 
appreciation rights were awarded during 1997. 
 
<TABLE> 
<CAPTION> 
OPTION/SAR/GRANTS IN LAST FISCAL YEAR  
Individual Grants 
 
                     Number 
                     of   
                     Secu-     Percent of 
                     rities    Total   
                     Under-    Options/  
                     lying     SARs                               Grant 
                     Options/  granted to  Exercise               Date  
                     SARs      Employees   or Base                Present 
                     Granted   in Fiscal   Price      Expiration  Value      
Name                 (#)(1)    Year (2)    ($/Sh)(3)  Date        ($) (4)    
===================  ========  ==========  =========  ==========  ========  
 
<S>                  <C>       <C>         <C>        <C>         <C> 
Gary L. Neale         50,000     9.4%       $ 20.64    08/27/07   $133,000    
Stephen P. Adik       20,000     3.7%         20.64    08/27/07     53,200 
Patrick J. Mulchay    20,000     3.7%         20.64    08/27/07     53,200 
Jeffrey W. Yundt      20,000     3.7%         20.64    08/27/07     53,200 
Joseph L. Turner       8,000     1.5%         20.64    08/27/07     21,280 
 
<FN> 
 
  (1) All options granted in 1997 are fully exercisable commencing one year 
      from the date of grant.  Vesting may be accelerated as a result of 
      certain events relating to a change in control of Industries.  The 
      exercise price and tax withholding obligation related to exercise may 
      be paid by delivery of already owned Common Shares or by reducing 
      the number of Common Shares received on exercise, subject to certain 
      conditions. 
 
  (2) Based on an aggregate of 533,600 options granted to all employees in  
      1997. 
 
  (3) All options were granted at the average of high and low sale prices 
      of the Common Shares as reported in "The Wall Street Journal" on the 
      date of grant. 
 
  (4) Grant date present value is determined using the Black-Scholes option 
      pricing model.  The assumptions used in the Black-Scholes option pricing 
      model were as follows: volatility-12.2% (calculated using daily Common 
      Share prices for the twelve-month period preceding the date of grant); 
      risk-free rate of return-6.64% (the rate for a ten-year U.S. treasury); 
      dividend yield-$0.90; option term-ten years; vesting-100% one year
      after date of grant; and an expected option term of 5.25 years.  No 
      assumptions relating to non-transferability or risk of forfeiture were 
      made.  Actual gains, if any, on option exercises and Common Shares are 
      dependent on the future performance of the Common Shares and overall 
      market condition.  There can be no assurance that the amounts reflected 
      in this table will be achieved. 
 
</FN> 
</TABLE> 
 
      OPTION EXERCISE IN 1997.  The following table sets forth certain 
information concerning the exercise of options or stock appreciation rights 
("SARs") during 1997 by each of the Named Officers and the number and value 
of unexercised options and SARs at December 31, 1997. 
 
<TABLE> 
<CAPTION> 
AGGREGATED OPTION EXERCISES IN LAST FISCAL YEAR AND                 
FISCAL YEAR-END OPTION VALUES    
                                               Number of Securities 
                     Shares                   Underlying Unexercised 
                    Acquired                  Options/SARs at Fiscal 
                       on        Value            Year-End (#) (1) 
                    Exercise    Realized    -----------------------------  
     Name             (#)         ($)       Exercisable     Unexercisable 
==================  ========    ========    ===========     =============  
 
<S>                 <C>         <C>         <C>             <C> 
Gary L. Neale              0    $      0        290,000           50,000 
Stephen P. Adik            0           0        143,200           20,000 
Patrick J. Mulchay         0           0        114,400           20,000 
Jeffrey W. Yundt           0           0        132,000           20,000 
Joseph L. Turner      10,000      87,813         69,000            8,000 
 
<CAPTION> 
                                               Value of Unexercised 
                                             In-the-money Options/SARs 
                                              at Fiscal Year-End($) (2) 
                                           ------------------------------- 
     Name                                   Exercisable     Unexercisable 
================                           =============   =============== 
 
<S>                                        <C>             <C> 
Gary L. Neale                                $3,010,312       $  207,030   
Stephen P. Adik                               1,669,175           82,812 
Patrick J. Mulchay                            1,166,450           82,812 
Jeffrey W. Yundt                              1,452,875           82,812 
Joseph L. Turner                                658,156           33,124 
 
 
<FN> 
  (1) Includes some SARs granted in tandem with options. 
 
  (2) Represents the difference between the option exercise price and 
      $24.78, the average of high and low sale prices of the Common Shares 
      on December 31, 1997, as reported in "The Wall Street Journal." 
 
</FN> 
</TABLE> 
 
      LONG-TERM INCENTIVE PLAN AWARDS IN 1997.  The following table sets forth 
restricted shares awarded pursuant to the Long-Term Incentive Plan during 
1997 to each of the Named Officers. 
 
<TABLE> 
<CAPTION> 
LONG-TERM STOCK INCENTIVE PLANS-AWARDS IN LAST FISCAL YEAR 
 
                      Number of   Performance      Estimated Future Payouts 
                        Shares      or Other          Under Non-Stock  
                        Units       Period            Price-Based Plans 
                      or Other      Until       ---------------------------- 
                       Rights     Maturation    Threshold   Target   Maximum 
     Name                (#)       or Payout         (#)        (#)      (#) 
==================   ==========   ===========   =========   ======   ======= 
 
<S>                  <C>          <C>           <C>         <C>      <C> 
Gary L. Neale          18,000      2 years           0      18,000    18,000 
Stephen P. Adik             0            0           0           0         0 
Patrick J. Mulchay          0            0           0           0         0 
Jeffrey W. Yundt            0            0           0           0         0 
Joseph L. Turner            0            0           0           0         0 
 
</TABLE> 
    
      The restrictions on shares awarded during 1997 lapse two years from the 
date of grant.  The vesting of the restricted shares is variable from 0% to 
100% of the number awarded, based upon meeting certain specific non-financial 
performance objectives.  There is a two-year holding period for the shares 
after the restrictions lapse. 
 
      PENSION PLAN AND SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN.  The following 
table shows estimated annual benefits, giving effect to Industries' 
Supplemental Executive Retirement Plan (as described below), payable upon 
retirement to persons in the specified remuneration and years-of-service 
classifications. 
 
<TABLE> 
<CAPTION> 
PENSION PLAN TABLE                      
                                       Years of service 
                    ----------------------------------------------------- 
Remuneration            15         20         25         30         35 
============        =========  =========  =========  =========  ========= 
 
<S>                 <C>        <C>        <C>        <C>        <C> 
$  350,000            144,750    193,000    201,750    210,500    210,500 
   400,000            167,250    223,000    233,000    243,000    243,000 
   450,000            189,750    253,000    264,250    275,500    275,500 
   500,000            212,250    283,000    295,500    308,000    308,000 
   550,000            234,750    313,000    326,750    340,500    340,500 
   600,000            257,250    343,000    358,000    373,000    373,000 
   650,000            279,750    373,000    389,250    405,500    405,500 
   700,000            302,250    403,000    420,500    438,000    438,000 
   750,000            324,750    433,000    451,750    470,500    470,500 
   800,000            347,250    463,000    483,000    503,000    503,000 
   850,000            369,750    493,000    514,250    535,500    535,500 
   900,000            392,250    523,000    545,500    568,000    568,000
   950,000            414,750    553,000    576,750    600,500    600,500
 1,000,000            437,250    583,000    608,000    633,000    633,000
 1,050,000            459,750    613,000    639,250    665,500    665,500
 1,100,000            482,250    643,000    670,500    698,000    698,000

 </TABLE> 
 
      The credited years of service for each of the Named Officers shown in 
the Summary Compensation table, pursuant to the Supplemental Plan, are as 
follows: Gary L. Neale - 23 years; Stephen P. Adik - 19 years; Patrick J. 
Mulchay - 35 years; Jeffrey W. Yundt - 18 years; and Joseph L. Turner - 26 
years.  

      Upon their retirement, regular employees and officers of Industries 
and its subsidiaries which adopt the plan (including directors who are also 
full-time officers) will be entitled to a monthly pension in accordance with 
the provisions of Industries' pension plan, effective as of January 1, 1945. 
The directors who are not and have not been officers of Industries are not 
included in the pension plan.  The pensions are payable out of a trust fund 
established under the pension plan with The Northern Trust Company, trustee. 
The trust fund consists of contributions made by Industries and the earnings 
of the fund.  Over a period of years the contributions are intended to result 
in over-all actuarial solvency of the trust fund.  The pension plan of 
Industries has been qualified as non-discriminatory under Sections 401 and 
404 of the Internal Revenue Code of 1986 (the "Code"). 
 
      Pension benefits are determined separately for each participant.  The 
formula for a monthly payment for retirement at age 65 is 1.7% of average 
monthly compensation multiplied by years of service (to a maximum of 30 years) 
plus 0.6% of average monthly compensation multiplied by years of service over 
30.  Average monthly compensation is the average for the 60 consecutive 
highest paid months in the employee's last 120 months of service.  Covered 
compensation is defined as wages reported as W-2 earnings plus any salary 
reduction contributions made under the 401(k) Plan and an amount equivalent 
to base pay for certain non-compensated periods of authorized leave of 
absence, minus any amounts paid for unused vacations accrued.  The benefits
listed in the Pension Plan table are not subject to any deduction for Social
Security or other offset amounts.  
 
      Industries also has a Supplemental Executive Retirement Plan for 
officers.  Participants in the Plan are selected by the Board of Directors.  
Benefits from the Plan are to be paid from the general assets of Industries. 
 
      The Supplemental Plan provides the larger of (I) 60% of five-year 
average pay less Primary Social Security Benefits (prorated for less than 20 
years of service) and an additional 0.5% of 5-year average pay less Primary 
Social Security Benefits per year for participants with between 20 and 30 
years of service, or (ii) the benefit formula under the Industries' Pension 
Plan.  In either case, the benefit is reduced by the actual pension payable 
from Industries' Pension Plan.  In addition, the Supplemental Plan provides 
certain disability and pre-retirement death benefits for the spouse of a 
participant. 
 
      CHANGE IN CONTROL AND TERMINATION AGREEMENTS. The Board of Directors of 
Industries has authorized Change in Control and Termination Agreements ("the 
Agreements") with Mr. Neale and the Vice Presidents of Industries (including 
each of the Named Officers) (each such person being an "executive").  
Industries believes that these Agreements and related shareholder rights 
protections are in the best interest of the shareholders, to insure that in 
the event of extraordinary events, totally independent judgment is enhanced to 
maximize shareholder value.  The Agreements, which are terminable upon three 
years' notice, provide for the payment of three times then current annual base 
salary and target incentive bonus compensation and the continuation of certain
employee benefits for a period of 36 months ("the Severance Period"), if the
executive's employment is terminated within 24 months of certain changes in
control of Industries.    
 
      The executive would receive full benefits under any supplemental 
retirement plan of Industries, offset by amounts paid to the executive from 
any qualified retirement plans of Industries.  All stock options held by the 
executive would become immediately exercisable upon the date of termination of 
employment, and the restrictions would lapse on all restricted shares awarded 
to the executive.  If any penalty tax under the Code is imposed on the payment 
of three times base salary, Industries would increase the payment to the 
extent necessary to compensate the executive for the imposition of such tax. 
 
      During the Severance Period, the executive and spouse would continue to 
be covered by applicable health or welfare plans of Industries.  If the 
executive died during the Severance Period, all amounts payable to the 
executive would be paid to a named beneficiary.  No amounts would be payable 
under the Agreement if the executive's employment were terminated by 
Industries for Good Cause (as defined in the Agreements). 
 
      The Agreement with Mr. Neale also provides for the same severance 
payments as above described in the event his employment is terminated at any 
time by Industries (other than for Good Cause) or due to death or disability, 
or if he voluntarily terminates employment with Good Reason (as defined in the 
Agreements). 
 
      COMPENSATION OF DIRECTORS.  Each director who is not receiving a salary 
from Industries is paid $15,000 per year, $3,000 annually per standing 
committee on which the director sits, $1,000 annually for each committee 
chairmanship, $750 for each Board meeting attended and $750 per committee 
meeting attended.  Directors of Industries do not receive any additional 
compensation for services as a director of any Industries subsidiary, 
including Northern Indiana.  Under a deferred compensation arrangement, 
directors may have their fees deferred in the current year and credited to an 
interest-bearing account or to a phantom stock account for payment in the 
future. 
 
      Industries' Nonemployee Director Retirement Plan provides a retirement 
benefit for each nonemployee director of Industries who has completed at least 
five years of service on the Board.  The benefit will be an amount equal to 
the annual retainer for Board service in effect at the time of the director's 
retirement from the Board, to be paid for the lesser of ten years or the 
number of years of service as a nonemployee director of Industries. 
 
      Industries' Nonemployee Director Stock Incentive Plan provides for 
grants of restricted Common Shares to nonemployee directors of Industries.  
Initial grants were made in 1992, following shareholder approval of the plan, 
at the level of 500 shares for each year of service as a director, and 2,000 
restricted Common Shares have been granted to each nonemployee director 
elected or reelected since that date.  A grant of 2,000 shares will be made in 
the future to each person, other than an employee of Industries, who is 
elected or reelected as a director of Industries.  The grants of restricted 
shares vest in 20% annual increments, with full vesting five years after the 
date of award.

      Industries has adopted a Directors' Charitable Gift Program for 
nonemployee directors.  Under the program, Industries makes a donation to one 
or more eligible tax-exempt organizations as designated by each eligible 
director.  Industries contributes up to an aggregate of $125,000 as designated 
by nonemployee directors having served as a director of Industries for at 
least five years and up to $250,000 as designated by those having served ten 
years or more.  Organizations eligible to receive a gift under the program 
include charitable organizations and educational institutions located in 
Indiana and educational institutions that the director attended or for which 
he or she serves on its governing board.  Individual directors derive no 
financial benefit from the program, as all deductions relating to the 
charitable donations accrue solely to Industries.  All current nonemployee 
directors are eligible to participate in the program. 
 
ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT. 
 
      Not applicable. 
 
ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS. 
 
      Not applicable. 
 
ITEM 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS ON FORM 8-K. 
 
     (a) (1)  The Financial Statements filed herewith as part of this 
              report on Form 10-K are listed on the Index to Financial 
              Statements under Item 8 on page 17. 
 
         (2)  The following is a list of the Financial Statements 
              Schedule filed herewith as part of this report on Form 10-K: 
 
<TABLE> 
<CAPTION> 
Schedule                                                Page of 
Number                    Description                  1997 10-K 
=========     =================================       =========== 
 
<S>           <C>                                     <C> 
   II         Valuation and Qualifying Accounts          60-63
 
</TABLE> 
 
         (3)  Exhibit - The exhibits filed herewith as a part of this 
              report on Form 10-K are listed on the Exhibit Index 
              included on pages 64-65. 
 
     (b)  Reports on Form 8-K:  None 
 
<PAGE>  
PART IV 
 
<TABLE> 
<CAPTION> 
SCHEDULE II. VALUATION AND QUALIFYING ACCOUNTS 
                       
                     Twelve Months Ended December 31, 1997 
                            (Dollars in thousands) 
 
        COL.A           COL.B          COL.C              COL.D       COL.E 
- --------------------   -------  --------------------  ------------  --------   
                                    
                                     Additions         Deductions 
                                --------------------  for Purposes     
                       Balance  Charged to  Charged    for which    Balance 
                       Jan. 1,   Costs and  to Other    Reserves    Dec. 31, 
    Description          1997    Expenses   Accounts  were Created    1997 
====================   =======  ==========  ========  ============  ========  
  
<S>                    <C>      <C>         <C>       <C>           <C> 
Reserves Deducted  
 In Consolidated  
 Balance Sheet From    
 Assets To Which 
 They Apply: 
  Reserve for  
   accounts  
   receivables         $ 4,568  $    5,305  $      0  $   5,349     $ 4,524 
 
Reserves Classified 
 Under Reserve 
 Section of 
 Consolidated  
 Balance Sheet: 
  Injuries and   
   damages reserve     $ 4,376  $    4,875  $      0  $   3,659     $ 5,592 
  Environmental 
   reserves            $16,575  $    9,064  $      0  $   6,875     $18,764 
  Miscellaneous   
   operating 
   reserves            $ 4,131  $        0  $      0  $     573     $ 3,558 
  
</TABLE> 
 
<PAGE> 
 
PART IV 
<TABLE> 
SCHEDULE II. VALUATION AND QUALIFYING ACCOUNTS 
 
 
                     Twelve Months Ended December 31, 1996 
                            (Dollars in thousands) 
 
        COL.A           COL.B          COL.C              COL.D       COL.E 
- --------------------   -------  --------------------  ------------  --------   
                                    
                                     Additions         Deductions 
                                --------------------  for Purposes     
                       Balance  Charged to  Charged    for which    Balance 
                       Jan. 1,   Costs and  to Other    Reserves    Dec. 31, 
    Description          1996   Expenses    Accounts  were Created    1996 
====================   =======  ==========  ========  ============  ========  
  
<S>                   <C>       <C>         <C>       <C>           <C> 
 
Reserves Deducted  
 In Consolidated  
 Balance Sheet From    
 Assets To Which 
 They Apply: 
  Reserve for            
   accounts  
   receivables         $ 6,418  $ 6,580     $    0     $   8,430     $ 4,568 
 
Reserves Classified 
 Under Reserve 
 Section of 
 Consolidated  
 Balance Sheet: 
  Injuries and   
   damages reserve     $ 1,837  $ 4,875     $    0     $   2,336     $ 4,376 
  Environmental 
   reserves            $ 4,800  $15,272     $    0     $   3,497     $16,575  
  Miscellaneous   
   operating 
   reserves            $ 3,781  $   350     $    0     $       0     $ 4,131 
 
</TABLE> 
 
<PAGE> 
PART IV 
 
<TABLE> 
<CAPTION> 
SCHEDULE II. VALUATION AND QUALIFYING ACCOUNTS 
                       
                     Twelve Months Ended December 31, 1995 
                            (Dollars in thousands) 
 
        COL.A           COL.B          COL.C              COL.D       COL.E 
- --------------------   -------  --------------------  ------------  --------   
                                    
                                     Additions         Deductions 
                                --------------------  for Purposes     
                       Balance  Charged to  Charged    for which    Balance 
                       Jan. 1,   Costs and  to Other    Reserves    Dec. 31, 
    Description          1995    Expenses   Accounts  were Created    1995 
====================   =======  ==========  ========  ============  ========  
  
<S>                   <C>       <C>         <C>       <C>           <C> 
Reserves Deducted  
 In Consolidated  
 Balance Sheet From    
 Assets To Which 
 They Apply: 
  Reserve for  
   accounts  
   receivables         $ 3,955  $ 6,555     $    0    $   4,092     $ 6,418 
 
Reserves Classified 
 Under Reserve 
 Section of 
 Consolidated  
 Balance Sheet: 
  Injuries and   
   damages reserve     $ 2,538  $ 2,800     $    0    $   3,501     $ 1,837 
  Enironmental 
   reserves            $ 3,550  $ 2,884     $    0    $   1,634     $ 4,800  
  Miscellaneous   
   operating 
   reserves            $ 3,781  $     0     $    0    $       0     $ 3,781 
 
 
</TABLE> 
 
<PAGE> 
 
                                 SIGNATURES 
 
      Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned, hereunto duly authorized. 
 
                              Northern Indiana Public Service Company 
                                             (Registrant) 
 
Date      March 26, 1998       By           /s/ Gary L. Neale
     ------------------------    -------------------------------------------- 
                                   Gary L. Neale, Its Chairman and President 
 
      Pursuant to the requirements of the Securities exchange Act of 1934, 
this report has been signed below by the following persons on behalf of 
the registrant and in the capacities and on the dates indicated. 
 
<TABLE> 
<CAPTION> 
 
         Signature                       Title                      Date 
===========================   ===============================   ============== 
 
<S>                           <C>                               <C> 
/s/    Gary L. Neale          Chairman, President, Principal 
- ---------------------------    Executive Officer and Director  
       Gary L. Neale
 
/s/    Stephen P. Adik        Executive Vice President and 
- ---------------------------    Principal Financial Officer  
       Stephen P. Adik 
   
/s/    David J. Vajda         Controller and Principal 
- ---------------------------    Accounting Officer 
       David J. Vajda  

/s/    Steven C. Beering      Director  
- --------------------------- 
       Steven C. Beering

/s/    Arthur J. Decio        Director                          March 26, 1998 
- --------------------------- 
       Arthur J. Decio 

/s/    Ernestine M. Raclin    Director 
- --------------------------- 
       Ernestine M. Raclin 

                              Director 
- --------------------------- 
       Denis E. Ribordy 

/s/    Ian M. Rolland         Director 
- --------------------------- 
       Ian M. Rolland

/s/    Edmund A. Schroer      Director 
- --------------------------- 
       Edmund A. Schroer
 
/s/    John W. Thompson       Director 
- --------------------------- 
       John W. Thompson
 
/s/    Robert J. Welsh        Director 
- --------------------------- 
       Robert J. Welsh
 
</TABLE>     
 
<PAGE> 
<TABLE> 
<CAPTION> 
 
                               EXHIBIT INDEX 
 Exhibit                                                           
 Number                      Description of Item   
========    =============================================================== 
 
<S>         <C> 
(3.(I))     Amended Articles of Incorporation of April 14, 1982  
             (incorporated by reference to Exhibit 1 to Northern Indiana 
             Public Service Company (Northern Indiana) Current Report on 
             Form 8-K dated May 5, 1982). 
 
(3.(ii))    By-laws effective August 27, 1996 (incorporated by reference 
             to Exhibit 3 to Northern Indiana Quarterly Report on Form 10-Q 
             for the quarter ended September 30, 1996). 
 
(4.1)       Indenture dated August 1, 1939 between Northern Indiana and 
             Trustees (incorporated by reference to Exhibit 7 to Northern 
             Indiana Registration Statement (Registration No. 2-5178)). 
 
(4.2)       Third Supplemental Indenture dated August 1, 1943 
             (incorporated by reference to Exhibit 7-C to Northern Indiana 
             Registration Statement (Registration No. 2-5178)). 
 
(4.3)       Nineteenth Supplemental Indenture dated October 1, 1968  
             (incorporated by reference to Exhibit 1 to Northern Indiana 
             Current Report on Form 8-K dated November 8, 1968). 
 
(4.4)       Twenty-third Supplemental Indenture dated March 31, 1972 
             (incorporated by reference to Exhibit 2 to Northern Indiana 
             Current Report on Form 8-K dated May 5, 1972). 
 
(4.5)       Thirty-third Supplemental Indenture dated June 1, 1980  
             (incorporated by reference to Exhibit 1 to Northern Indiana 
             Quarterly Report on Form 10-Q for the quarter ended June 30, 
             1980). 
 
(4.6)       Forty-first Supplemental Indenture dated July 1, 1991 
             (incorporated by reference to Exhibit 1 to Northern Indiana 
             Current Report on Form 8-K dated March 25, 1992). 
 
(4.7)       Indenture, dated as of March 1, 1988, between Northern Indiana 
             and Manufacturers Hanover Trust Company, as Trustee 
             (incorporated by reference to Exhibit 4 to Northern Indiana 
             Registration Statement (Registration  No. 33-44193)). 
 
(4.8)       First Supplemental Indenture, dated as of December 1, 1991,
             between Northern Indiana and Manufacturers Hanover Trust Company,
             as Trustee (incorporated by reference to Exhibit 4.1 to Northern
             Indiana Registration Statement (Registration No. 33-63870)).
 
(4.9)       Memorandum of Agreement with City of Michigan City, Indiana 
             (incorporated by reference to Exhibit 7 to Northern Indiana 
             Registration Statement (Registration No. 2-48531)). 
 
(4.10)      Financing Agreement No. 1 dated November 1, 1988 with Jasper 
             County, Indiana regarding $37,000,000 Series 1988A Pollution 
             Control Refunding Revenue Bonds.  Identical financing      
             agreements between Registrant and Jasper County provide for 
             the issuance of $47,000,000 Series 1988B, $46,000,000 Series 
             1988C and $24,000,000 Series 1988D Pollution Control Refunding 
             Revenue Bonds (incorporated by reference to Exhibit 8 to 
             Northern Indiana Current Report on Form 8-K dated March 16, 
             1989). 
 
(4.11)      Financing Agreement dated July 1, 1991, with Jasper County 
             Indiana regarding $55,000,000 Series 1991 Collateralized 
             Pollution Control Refunding Revenue Bonds (incorporated by 
             reference to Exhibit 3 to Northern Indiana Current Report of 
             Form 8-K dated March 25, 1992). 
 
(4.12)      Financing Agreement dated August 1, 1994, with Jasper County, 
             Indiana regarding $10,000,000 Series 1994A, $18,000,000 
             Series 1994B and $41,000,000 Series 1994C Pollution Control 
             Refunding Revenue Bonds. 
 
(10)        Amended and Restated Pension Plan Provisions effective 
             January 1, 1989 (incorporated by reference to Exhibit 17 to 
             Northern Indiana Current Report of Form 8-K dated March 25, 
             1992).*

(23)        Consent of Arthur Andersen LLP. 
 
(27)        Financial Data Schedule. 
 
<FN> 
*Management contract or compensatory plan arrangement of Northern Indiana  
Public Service Company. 
 
</FN> 
</TABLE> 


 
 
Exhibit 23

                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

      As independent public accountants, we hereby consent to the
incorporation of our report included in this Form 10-K into Northern Indiana
Public Service Company's previously filed Form S-3 Registration Statement
No. 333-26847.


                                /s/ Arthur Andersen LLP 


Chicago, Illinois

March 26, 1998
                                                                   
 

<TABLE> <S> <C>
 
<ARTICLE> UT 
<LEGEND> 
This schedule contains summary financial information extracted from the 
financial statements of Northern Indiana Public Service Company for 
twelve months ended December 31, 1997 and is qualified in its entirety 
by reference to such financial statements. 
</LEGEND> 
<MULTIPLIER> 1,000 
        
<S>                             <C> 
<PERIOD-TYPE>                   12-MOS 
<FISCAL-YEAR-END>                          DEC-31-1997 
<PERIOD-START>                             JAN-01-1997 
<PERIOD-END>                               DEC-31-1997 
<BOOK-VALUE>                                  PER-BOOK 
<TOTAL-NET-UTILITY-PLANT>                    3,028,259 
<OTHER-PROPERTY-AND-INVEST>                      1,215 
<TOTAL-CURRENT-ASSETS>                         341,698 
<TOTAL-DEFERRED-CHARGES>                        97,777 
<OTHER-ASSETS>                                 205,965 
<TOTAL-ASSETS>                               3,674,914 
<COMMON>                                       859,488 
<CAPITAL-SURPLUS-PAID-IN>                       12,522 
<RETAINED-EARNINGS>                            146,293 
<TOTAL-COMMON-STOCKHOLDERS-EQ>               1,018,303 
                           58,841 
                                     81,123 
<LONG-TERM-DEBT-NET>                           313,471 
<SHORT-TERM-NOTES>                              47,500 
<LONG-TERM-NOTES-PAYABLE>                      766,025 
<COMMERCIAL-PAPER-OBLIGATIONS>                  71,500 
<LONG-TERM-DEBT-CURRENT-PORT>                   51,009 
                        1,828 
<CAPITAL-LEASE-OBLIGATIONS>                          0 
<LEASES-CURRENT>                                     0 
<OTHER-ITEMS-CAPITAL-AND-LIAB>               1,265,314 
<TOT-CAPITALIZATION-AND-LIAB>                3,674,914 
<GROSS-OPERATING-REVENUE>                    1,752,382 
<INCOME-TAX-EXPENSE>                           110,099 
<OTHER-OPERATING-EXPENSES>                   1,361,163 
<TOTAL-OPERATING-EXPENSES>                   1,471,262 
<OPERATING-INCOME-LOSS>                        281,120 
<OTHER-INCOME-NET>                              (3,659)
<INCOME-BEFORE-INTEREST-EXPEN>                 277,461 
<TOTAL-INTEREST-EXPENSE>                        80,841 
<NET-INCOME>                                   196,620 
                      8,539 
<EARNINGS-AVAILABLE-FOR-COMM>                  188,081 
<COMMON-STOCK-DIVIDENDS>                       187,775 
<TOTAL-INTEREST-ON-BONDS>                       17,163 
<CASH-FLOW-OPERATIONS>                         458,337 
<EPS-PRIMARY>                                        0 
<EPS-DILUTED>                                        0 
         

</TABLE>


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