NORAM ENERGY CORP
8-K, 1996-08-12
NATURAL GAS TRANSMISISON & DISTRIBUTION
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<PAGE>   1
                       SECURITIES AND EXCHANGE COMMISSION


                             WASHINGTON, D.C. 20549


                                    FORM 8-K


                                 CURRENT REPORT


           Pursuant to Section 13 or 15(d) of the Securities Exchange
                                   Act of 1934


                Date of Report (Date of earliest event reported)
                                 August 11, 1996



                               NORAM ENERGY CORP.
             (Exact name of Registrant as specified in its charter)


     Delaware                 1-3751              72-0120530
  (State or other          (Commission         (IRS Employer
   jurisdiction            File Number)    Identification No.)


   NorAm Energy Corp.
     1600 Smith
    Houston, Texas                             77002
(Address of principal executive offices)    (Zip Code)


                                 (713) 654-5699
              (Registrant's telephone number, including area code)




<PAGE>   2



Item 5. Other Events

         At a Special Meeting of the Board of Directors of NorAm Energy Corp.
(the "Company") on August 11, 1996, the Company approved an Agreement and Plan
of Merger (the "Merger Agreement") with Houston Industries Incorporated
("Houston Industries"), Houston Lighting & Power Company ("HL&P") and HI Merger,
Inc., a new Delaware subsidiary of Houston Industries ("HI Merger, Inc."). Under
the Merger Agreement, the Company would merge with and into HI Merger, Inc.,
which would be renamed "NorAm Energy Corp." and would be a wholly-owned
subsidiary of HII (as defined below). Houston Industries would merge with and
into HL&P and the currently outstanding common stock of Houston Industries would
become the common stock of HL&P, which would be renamed "Houston Industries
Incorporated" ("HII") (collectively the mergers are referred to herein as the
Merger).

         The transaction is valued at $3.8 billion, consisting of $2.4 billion
for the Company's common stock and equivalents and $1.4 billion of Company debt.
Under the Merger Agreement, holders of Company common stock would receive at
their election (at any time up to the trading day immediately prior to the
closing date of the Merger): (1) cash in the amount of $16 per share or (2) HII
voting common stock. The shareholders' election would, however, be subject to
the right of Houston Industries to prorate share and cash purchases to hold the
percentage of cash and stock at or near 50/50. At HII's election, if the Company
Shareholders elect more than 50% stock, they could receive more than 50% HII
common stock. The value of the stock component would be held generally equal to
the cash component within the range described below, with the number of HII
shares to be issued in exchange for each share of Company common stock being
that number of shares of HII common stock equal to the quotient obtained by
dividing $16.00 by the average NYSE closing sales price of a share of Houston
Industries common stock over a 20 consecutive trading day period commencing 25
trading days prior to the closing date of the Merger (the "Average Price")
provided that the Average Price will be deemed to be not less than $21.25 and
not more than $26.00. In addition, if the closing does not occur by May 11,
1997, the cash (but not stock) consideration increases thereafter by two percent
(simple interest) per quarter until closing.

<PAGE>   3
         Houston Industries' regulated subsidiary, HL&P is the nation's
ninth-largest electric utility in terms of kilowatt-hour sales. HL&P's service
territory includes the City of Houston and surrounding communities with a total
of 1.5 million customers. Houston Industries' principal unregulated subsidiary,
HI Energy pursues foreign utility privatizations and the development of
unregulated power generator projects. It has projects and interests in
Argentina, Brazil and India.

         The Merger Agreement has also been approved by the Boards of Directors
of Houston Industries and HL&P. Consummation of the Merger is subject to
customary closing conditions, including approval by shareholders of the Company
and Houston Industries. The parties presently contemplate that shareholder
meetings to consider approval of the transactions will be held prior to the end
of 1996. Consummation of the Merger is also subject to receipt of favorable
opinions of counsel that the Merger will qualify as a tax free reorganization
and certain regulatory filings or approvals, including notice to or approvals
from certain state regulatory agencies and municipal franchise authorities and
the filing of the requisite notifications with the Federal Trade Commission and
the Department of Justice under the Hart-Scott-Rodino Antitrust Improvements Act
of 1976, as amended, and the expiration of applicable waiting periods
thereunder. The parties have agreed to certain undertakings and limitations
regarding the conduct of their businesses prior to the closing of the Merger.

         Under the Merger structure, HII would be both a public utility company
and a public utility holding company under the Public Utility Holding Company
Act of 1935 (PUHCA). The Merger Agreement contemplates that the merged companies
will be exempt from registration under PUHCA. Alternative structures are
required should existing administrative positions or legislative changes
adversely affect the structure described above or permit structures not
presently authorized by PUHCA. One of the alternate structures contemplates a
non-holding company structure in which all regulated operations would be
conducted within one company.

         The Merger Agreement provides for termination by either the Company or
Houston Industries if the transactions have not been consummated by August 11,
1997, which date may be 

<PAGE>   4

extended until December 31, 1997, only in the event that
the unsatisfied condition to closing is receipt of pending regulatory approvals.
The agreement may be terminated by the Company or Houston Industries in the
event that ( 1) the other party fails to hold its shareholders meeting by
February 15, 1997, (2) the other party fails to cure material noncompliance with
its covenants in the agreement, (3) the other party's representations are or
become materially incorrect, (4) there is a material adverse change in the other
party (other than general economic changes or changes affecting the parties'
industries generally), (5) the other party's board of directors withdraws or
modifies, in an adverse manner, its recommendation for approval of the
transactions or (6) the Company accepts a superior, unsolicited offer. The
Merger Agreement provides for a termination fee to be paid by a party
terminating the Merger Agreement in certain circumstances, which fee is from $10
million to $35 million for Houston Industries and which ranges from $10 million
to $75 million in the case of the Company, depending on the circumstances of
termination. The $75 million level is required if the Company terminates the
Merger Agreement to accept a superior, unsolicited offer or if the agreement is
terminated under certain other circumstances and such an offer is accepted
within twelve months of termination of the Merger Agreement.

         The descriptions of the Merger Agreement set forth herein do not
purport to be complete and are qualified in their entirety by the provisions of
the Merger Agreement, which are attached hereto and are incorporated herein by
reference.

Item 7.  Financial Statements and Exhibits.

                  The following exhibit is filed herewith:

                  2(a) - Agreement and Plan of Merger dated as of August 11,
1996 among Houston Industries Incorporated, Houston Lighting & Power Company, 
HI Merger, Inc. and NorAm Energy Corp.




<PAGE>   5







                                    Signature


         Pursuant to the requirements of the Securities Exchange Act of 1934,
the Registrant has duly caused this report on Form 8-K to be signed on its
behalf by the undersigned hereunto duly authorized.


                                            NORAM ENERGY CORP.



                                            By:    /s/ Jack W. Ellis
                                            Name:  Jack W. Ellis
                                            Title: Vice President & Controller




Date:    August 12, 1996

<PAGE>   6

                                 EXHIBIT INDEX


 EXHIBIT
 NUMBER                          DESCRIPTION                             
 -------                         -----------                           
  2(a)       Agreement and Plan of Merger dated as of August 11, 1996
             among Houston Industries Incorporated, Houston Lighting &
             Power Company, HI Merger, Inc. and NorAm Energy Corp.







<PAGE>   1
                                                                     EXHIBIT 2a




                          AGREEMENT AND PLAN OF MERGER

                                     AMONG

                        HOUSTON INDUSTRIES INCORPORATED,

                       HOUSTON LIGHTING & POWER COMPANY,

                                HI MERGER, INC.

                                      AND

                               NORAM ENERGY CORP.

                          DATED AS OF AUGUST 11, 1996





<PAGE>   2
                               TABLE OF CONTENTS

<TABLE>
<CAPTION>

                                                                                                                     Page
<S>                <C>                                                                                                <C>
ARTICLE I          THE MERGERS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -2-
         1.1       The Mergers; Effective Time of the Mergers   . . . . . . . . . . . . . . . . . . . . . . . . . . . -2-
                   (a)    The HII/HL&P Merger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -2-
                   (b)    The NorAm Merger  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -2-
         1.2       Closing  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -2-
         1.3       Effects of the HII/HL&P Merger   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -3-
         1.4       Effects of the NorAm Merger  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -3-

ARTICLE II         EFFECT OF THE MERGERS ON THE CAPITAL STOCK OF THE CONSTITUENT 
                   CORPORATIONS; EXCHANGE OF CERTIFICATES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -4-
         2.1       Effect of HII/HL&P Merger on Capital Stock   . . . . . . . . . . . . . . . . . . . . . . . . . . . -4-
                   (a)    Cancellation of HL&P Common Stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -4-
                   (b)    Cancellation of Treasury Stock and HL&P-Owned Stock . . . . . . . . . . . . . . . . . . . . -4-
                   (c)    Exchange of HII Common Stock  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -5-
                   (d)    Treatment of HII Stock Options  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -5-
                   (e)    HL&P Preferred Stock Unchanged  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -5-
         2.2       Effect of NorAm Merger on Capital Stock  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -5-
                   (a)    Merger Sub Capital Stock Unchanged  . . . . . . . . . . . . . . . . . . . . . . . . . . . . -6-
                   (b)    Cancellation of Treasury Stock and HL&P-Owned Stock . . . . . . . . . . . . . . . . . . . . -6-
                   (c)    Exchange Ratio for NorAm Common Stock . . . . . . . . . . . . . . . . . . . . . . . . . . . -6-
                   (d)    NorAm Dissenting Shares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -7-
                   (e)    Treatment of NorAm Stock Options  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -8-
                   (f)    NorAm Convertible Debentures  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -8-
                   (g)    NorAm Convertible Junior Debentures . . . . . . . . . . . . . . . . . . . . . . . . . . . . -9-
         2.3       Exchange of Certificates   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -9-
                   (a)    Exchange of HII Common Stock  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -9-
                   (b)    Exchange Agent  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -9-
                   (c)    Exchange Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -10-
                   (d)    Distributions with Respect to Unexchanged Shares  . . . . . . . . . . . . . . . . . . . .  -10-
                   (e)    No Further Ownership Rights in NorAm Common Stock . . . . . . . . . . . . . . . . . . . .  -11-
                   (f)    No Fractional Shares  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -11-
                   (g)    Termination of Exchange Agent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -12-
                   (h)    No Liability  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -12-
         2.4       Allocation of Merger Consideration; Election Procedures  . . . . . . . . . . . . . . . . . . . .  -12-
                   (a)    Allocation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -12-
                   (b)    Election  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -13-
                   (c)    Procedure for Elections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -14-
                   (d)    Revocation of Election; Return of Certificates  . . . . . . . . . . . . . . . . . . . . .  -14-
                   (e)    Proration of Cash Election Shares . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -15-
</TABLE>

                                             -i-
<PAGE>   3
<TABLE>
 <S>               <C>                                                                                               <C>
                   (f)    Proration of Stock Election Shares  . . . . . . . . . . . . . . . . . . . . . . . . . . .  -15-
                   (g)    No Proration  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -15-
                   (h)    Computations  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -16-

ARTICLE III        REPRESENTATIONS AND WARRANTIES   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -16-
         3.1       Representations and Warranties of NorAm  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -16-
                   (a)    Organization, Standing and Power  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -16-
                   (b)    Capital Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -16-
                   (c)    Authority; No Violations; Consents and Approvals  . . . . . . . . . . . . . . . . . . . .  -18-
                   (d)    SEC Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -19-
                   (e)    Information Supplied  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -20-
                   (f)    Absence of Certain Changes or Events  . . . . . . . . . . . . . . . . . . . . . . . . . .  -21-
                   (g)    No Undisclosed Material Liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . .  -21-
                   (h)    No Default  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -21-
                   (i)    Compliance with Applicable Laws . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -22-
                   (j)    Litigation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -22-
                   (k)    Taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -22-
                   (l)    Employee Matters; ERISA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -24-
                   (m)    Labor Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -30-
                   (n)    Intangible Property . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -31-
                   (o)    Environmental Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -32-
                   (p)    Insurance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -34-
                   (q)    Contracts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -35-
                   (r)    Regulatory Proceedings  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -35-
                   (s)    Regulation as a Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -35-
                   (t)    Opinion of Financial Advisor  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -36-
                   (u)    Vote Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -36-
                   (v)    Beneficial Ownership of HII Common Stock  . . . . . . . . . . . . . . . . . . . . . . . .  -36-
                   (w)    Brokers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -36-
                   (x)    Article Fifth of NorAm Restated Certificate of Incorporation and
                          Section 203 of the DGCL Not Applicable  . . . . . . . . . . . . . . . . . . . . . . . . .  -36-
                   (y)    Change in Control Provisions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -36-
         3.2       Representations and Warranties of HL&P and HII   . . . . . . . . . . . . . . . . . . . . . . . .  -37-
                   (a)    Organization, Standing and Power  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -37-
                   (b)    Capital Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -37-
                   (c)    Authority; No Violations; Consents and Approvals  . . . . . . . . . . . . . . . . . . . .  -39-
                   (d)    SEC Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -40-
                   (e)    Information Supplied  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -41-
                   (f)    Absence of Certain Changes or Events  . . . . . . . . . . . . . . . . . . . . . . . . . .  -41-
                   (g)    No Undisclosed Material Liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . .  -42-
                   (h)    No Default  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -42-
                   (i)    Compliance with Applicable Laws . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -42-
                   (j)    Litigation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -43-
                   (k)    Taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -43-

</TABLE>



                                              -ii-
<PAGE>   4
<TABLE>
<S>                <C>                                                                                               <C>
                   (l)    Employee Matters; ERISA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -44-
                   (m)    Labor Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -49-
                   (n)    Intangible Property . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -50-
                   (o)    Environmental Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -50-
                   (p)    Regulation as a Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -51-
                   (q)    Opinion of Financial Advisor  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -52-
                   (r)    Vote Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -52-
                   (s)    Beneficial Ownership of NorAm Common Stock  . . . . . . . . . . . . . . . . . . . . . . .  -52-
                   (t)    Brokers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -52-
                   (u)    Financing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -52-
                   (v)    Insurance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -53-
                   (w)    Regulatory Proceedings  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -53-
                   (x)    Representations with Respect to Merger Sub  . . . . . . . . . . . . . . . . . . . . . . .  -53-

ARTICLE IV         CONDUCT OF BUSINESS PENDING THE MERGERS  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -53-
         4.1       Conduct of Business by NorAm Pending the Mergers   . . . . . . . . . . . . . . . . . . . . . . .  -53-
                   (a)    Ordinary Course . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -54-
                   (b)    Dividends; Changes in Stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -54-
                   (c)    Issuance of Securities  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -54-
                   (d)    Governing Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -55-
                   (e)    No Acquisitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -55-
                   (f)    No Dispositions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -55-
                   (g)    No Dissolution, Etc.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -55-
                   (h)    Certain Employee Matters  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -55-
                   (i)    Indebtedness; Leases; Capital Expenditures  . . . . . . . . . . . . . . . . . . . . . . .  -56-
                   (j)    Accounting  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -56-
                   (k)    Affiliate Transactions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -56-
                   (l)    Rate Matters  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -57-
                   (m)    Contracts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -57-
                   (n)    Insurance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -57-
                   (o)    Permits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -57-
                   (p)    Tax Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -57-
                   (q)    Discharge of Liabilities  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -58-
                   (r)    Other Actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -58-
                   (s)    Agreements  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -58-
         4.2       Certain Restrictions in Respect of HII and HL&P  . . . . . . . . . . . . . . . . . . . . . . . .  -58-
                   (a)    Dividends; Changes in Stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -58-
                   (b)    Governing Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -58-
                   (c)    Insurance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -58-
                   (d)    Permits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -58-
                   (e)    Certain Acquisitions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -59-
                   (f)    Other Actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -59-
                   (g)    Agreements  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -59-
         4.3       No Solicitation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -59-

</TABLE>
                                                -iii-
<PAGE>   5

<TABLE>
<S>                <C>                                                                                               <C>

ARTICLE V          ADDITIONAL AGREEMENTS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -60-
         5.1       Preparation of S-4 and the Joint Proxy Statement   . . . . . . . . . . . . . . . . . . . . . . .  -60-
         5.2       Letter of NorAm's Accountants  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -61-
         5.3       Letter of HII's Accountants  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -61-
         5.4       Access to Information  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -61-
         5.5       NorAm Stockholders' Meeting  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -61-
         5.6       HII Shareholders' Meeting  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -62-
         5.7       Regulatory and Other Approvals   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -62-
                   (a)    HSR Act . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -62-
                   (b)    Other Regulatory Approvals  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -62-
                   (c)    Other Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -62-
         5.8       Agreements of Others   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -63-
         5.9       Authorization for Shares and Stock Exchange Listing  . . . . . . . . . . . . . . . . . . . . . .  -63-
         5.10      Employee Matters   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -63-
         5.11      Stock Options  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -66-
         5.12      Indemnification; Directors' and Officers' Insurance  . . . . . . . . . . . . . . . . . . . . . .  -67-
         5.13      Compliance with WARN Act   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -68-
         5.14      Agreement to Defend  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -69-
         5.15      Public Announcements   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -69-
         5.16      Other Actions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -69-
         5.17      Advice of Changes; SEC Filings   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -69-
         5.18      Reorganization   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -69-
         5.19      HII/HL&P Merger Surviving Corporation Board of Directors   . . . . . . . . . . . . . . . . . . .  -69-
         5.20      Execution of Supplemental Indentures   . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -70-
         5.21      Disclosure Schedules   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -70-
         5.22      Fairness Opinions Not Withdrawn  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -70-

ARTICLE VI         CONDITIONS PRECEDENT   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -70-
         6.1       Conditions to Each Party's Obligation to Effect the Merger   . . . . . . . . . . . . . . . . . .  -70-
                   (a)    NorAm Stockholder Approval  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -70-
                   (b)    HII Shareholder Approval  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -70-
                   (c)    NYSE Listing  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -70-
                   (d)    Other Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -71-
                   (e)    S-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -71-
                   (f)    No Injunctions or Restraints  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -71-
         6.2       Conditions of Obligations of HII, HL&P and Merger Sub  . . . . . . . . . . . . . . . . . . . . .  -71-
                   (a)    Representations and Warranties  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -71-
                   (b)    Performance of Obligations of NorAm . . . . . . . . . . . . . . . . . . . . . . . . . . .  -72-
                   (c)    Letters from Rule 145 Affiliates  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -72-
                   (d)    Number of NorAm Dissenting Shares . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -72-
                   (e)    Tax Opinion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -72-
                   (f)    No Material Limitations or Restraints . . . . . . . . . . . . . . . . . . . . . . . . . .  -72-
                   (g)    NorAm Required Consents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -72-
</TABLE>

                                      -iv-
<PAGE>   6
<TABLE>
<S>                <C>                                                                                               <C>

         6.3       Conditions of Obligations of NorAm   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -73-
                   (a)    Representations and Warranties  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -73-
                   (b)    Performance of Obligations of HII, HL&P and Merger Sub  . . . . . . . . . . . . . . . . .  -73-
                   (c)    Tax Opinion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -73-
                   (d)    HII Required Consents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -73-

ARTICLE VII        TERMINATION AND AMENDMENT  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -73-
         7.1       Termination  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -73-
         7.2       Effect of Termination  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -76-
         7.3       Expenses   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -77-
         7.4       Amendment  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -77-
         7.5       Extension; Waiver  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -77-

ARTICLE VIII       ALTERNATIVE MERGER   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -77-
         8.1       Alternative Merger   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -77-
         8.2       Effects of the Alternative Merger  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -78-
         8.3       Effect of the Alternative Merger on the Capital Stock of the Alternative
                   Merger Constituent Corporations; Exchange of Certificates  . . . . . . . . . . . . . . . . . . .  -79-
         8.4       Amendment to This Agreement  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -79-
         8.5       The Second Alternative Merger  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -79-
         8.6       Effects of the Second Alternative Merger   . . . . . . . . . . . . . . . . . . . . . . . . . . .  -80-
         8.7       Effect of the Second Alternative Merger on the Capital Stock of the
                   Second Alternative Merger Constituent Corporations; Exchange of
                   Certificates   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -80-
         8.8       Amendment to This Agreement  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -81-

ARTICLE IX         GENERAL PROVISIONS   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -81-
         9.1       Payment of Expenses  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -81-
         9.2       Nonsurvival of Representations, Warranties and Agreements  . . . . . . . . . . . . . . . . . . .  -81-
         9.3       Notices  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -81-
         9.4       Interpretation   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -83-
         9.5       Counterparts   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -83-
         9.6       Entire Agreement; No Third Party Beneficiaries   . . . . . . . . . . . . . . . . . . . . . . . .  -83-
         9.7       Governing Law  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -83-
         9.8       No Remedy in Certain Circumstances   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -83-
         9.9       Assignment   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -84-


</TABLE>
                                      -v-
<PAGE>   7
                           GLOSSARY OF DEFINED TERMS

<TABLE>
<CAPTION>
Defined Term                                                                          Defined in Section
- ------------                                                                          ------------------
<S>                                                                                        <C>
1935 Act  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(s)(i)
Acquisition Proposal  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      4.3(e)
Affiliate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      4.1(k)
Agreement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      Preamble
Alternative Merger  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      Recitals
Alternative Merger Articles of Merger . . . . . . . . . . . . . . . . . . . . . . . .      8.1(b)
Alternative Merger Certificate of Merger  . . . . . . . . . . . . . . . . . . . . . .      8.1(b)
Alternative Merger Constituent Corporations . . . . . . . . . . . . . . . . . . . . .      8.2(a)
Alternative Merger Effective Time . . . . . . . . . . . . . . . . . . . . . . . . . .      8.1(b)
Alternative Merger Surviving Corporation  . . . . . . . . . . . . . . . . . . . . . .      8.2(a)
Average Price . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.2(c)(ii)
Cash Consideration  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.2(c)(i)
Cash Election . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.4(b)
Cash Election Number  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.4(a)
Cash Election Shares  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.4(e)
Certificates  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.3(c)
Closing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      1.1(a)
Closing Date  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      1.2
Code  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      Recitals
Confidentiality Agreements  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      5.4
CS First Boston . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.2(q)
Cycle X Awards  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      5.10(d)
DGCL  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      1.1(b)
Disclosure Schedules  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      5.21
Effective Time  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      1.1(b)
Election Deadline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.4(c)
Environmental Claims  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(o)(i)(A)
Environmental Laws  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(o)(i)(B)
Environmental Permits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(o)(iii)
ERISA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(l)(i)(D)
Excess Securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.3(f)
Exchange Act  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(c)(iii)
Exchange Agent  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.3(b)
Exchange Fund . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.3(b)
FERC  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(c)(iii)
Form of Election  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.4(c)
Fractional Dividends  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.3(f)
GAAP  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(d)
Governmental Entity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(c)(iii)
Hazardous Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(o)(i)(C)
HII . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      Preamble
HII Affiliate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.2(l)(i)

</TABLE>

                                      -vi-
<PAGE>   8

<TABLE>
<CAPTION>                         
Defined Term                                                                        Defined in Section
- ------------                                                                        ------------------
<S>                                                                                        <C>
HII Benefit Plan  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.2(l)(i)
HII Common Stock  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.1
HII Common Stock Repurchase Program . . . . . . . . . . . . . . . . . . . . . . . . .      3.2(f)
HII Disclosure Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.2
HII/HL&P Merger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      Recitals
HII/HL&P Merger Articles of Merger  . . . . . . . . . . . . . . . . . . . . . . . . .      1.1(a)
HII/HL&P Merger Certificate of Merger . . . . . . . . . . . . . . . . . . . . . . . .      1.1(a)
HII/HL&P Merger Constituent Corporations  . . . . . . . . . . . . . . . . . . . . . .      1.3(a)
HII/HL&P Merger Effective Time  . . . . . . . . . . . . . . . . . . . . . . . . . . .      1.1(a)
HII/HL&P Merger Surviving Corporation . . . . . . . . . . . . . . . . . . . . . . . .      1.3(a)
HII Intangible Property . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.2(n)
HII Litigation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.2(j)
HII Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.2(j)
HII Pension Benefit Plan  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.2(l)(ii)
HII Permits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.2(i)
HII Preferred Stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.2(b)(ii)
HII Required Consents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.2(c)(ii)
HII SEC Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.2(d)
HII Series A Preference Stock . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.1(b)
HII Shareholders' Meeting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      5.6
HII Stock Option  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.1(d)
HII Stock Plans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.2(b)(ii)
HII Stock Purchase Right  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.1(b)
HII Vote Matter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.2(c)(i)
HL&P  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      Preamble
HL&P Class A Common Stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.1(a)
HL&P Class B Common Stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.1(a)
HL&P Common Stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.1(c)
HL&P Preferred Stock  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.2(b)(i)
HL&P Rights Agreement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.1(c)
HL&P SEC Documents  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.2(d)
HL&P Series A Preferred Stock . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.1(c)
HL&P Stock Purchase Rights  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.1(c)
HSR Act . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(c)(iii)
Indemnified Liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      5.12(a)
Indemnified Parties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      5.12(a)
Initial Termination Date  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      7.1(c)
Injunction  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      6.1(f)
IRS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(k)(ii)
Joint Proxy Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(c)(iii)
Material Adverse Change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(a)
Material Adverse Effect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(a)
Merger Consideration  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.2(c)
Merger Sub  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      Preamble


</TABLE>



                                          -vii-
<PAGE>   9

<TABLE>
<CAPTION>
Defined Term                                                                         Defined in Section
- ------------                                                                         ------------------
<S>                                                                                        <C>
Mergers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      Recitals
Merrill Lynch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(t)
Non-Election  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.4(b)
Non-Election Shares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.4(b)
NorAm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      Preamble
NorAm 10% Debentures  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(y)
NorAm Affiliate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(l)(i)(A)
NorAm Benefit Plan  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(l)(i)(B)
NorAm Common Stock  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.2
NorAm Convertible Debentures  . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.2(f)
NorAm Convertible Junior Debentures . . . . . . . . . . . . . . . . . . . . . . . . .      2.2(g)
NorAm Disclosure Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1
NorAm Dissenting Shares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.2(d)
NorAm Incentive Plan  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      5.10(d)
NorAm Intangible Property . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(n)
NorAm Litigation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(j)
NorAm Merger  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      Recitals
NorAm Merger Certificate of Merger  . . . . . . . . . . . . . . . . . . . . . . . . .      1.1(b)
NorAm Merger Constituent Corporations . . . . . . . . . . . . . . . . . . . . . . . .      1.4(a)
NorAm Merger Effective Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      1.1(b)
NorAm Merger Surviving Corporation  . . . . . . . . . . . . . . . . . . . . . . . . .      1.4(a)
NorAm Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(j)
NorAm Pension Benefit Plan  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(l)(i)(C)
NorAm Permits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(i)
NorAm Preferred Stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(b)
NorAm Rabbi Trusts  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      5.10(g)
NorAm Representatives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      4.3(a)
NorAm Required Consents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(c)(ii)
NorAm SEC Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(d)
NorAm Stock Option  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.2(e)(i)
NorAm Stock Option Election Form  . . . . . . . . . . . . . . . . . . . . . . . . . .      2.2(e)(i)
NorAm Stock Option Election Period  . . . . . . . . . . . . . . . . . . . . . . . . .      2.2(e)(i)
NorAm Stock Plans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(b)
NorAm Stockholders' Meeting . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      5.5
NYSE  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.2(c)(ii)
PBGC  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(l)(i)(E)
Release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(o)(i)(D)
Reportable Event  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(l)(i)(F)
Returns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(k)(i)
Rule 145 Affiliates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      5.8
S-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(e)
SEC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(a)
Second Alternative Merger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      Recitals
Second Alternative Merger Certificate of Merger . . . . . . . . . . . . . . . . . . .      8.5(b)
</TABLE>



                                     -viii-
<PAGE>   10

<TABLE>
<CAPTION>
Defined Term                                                                        Defined in Section
- ------------                                                                        ------------------
<S>                                                                                        <C>
Second Alternative Merger Constituent Corporations  . . . . . . . . . . . . . . . . .      8.6(a)
Second Alternative Merger Effective Time  . . . . . . . . . . . . . . . . . . . . . .      8.5(b)
Second Alternative Merger Surviving Corporation . . . . . . . . . . . . . . . . . . .      8.6(a)
Section 5.10(b) Plans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      5.10(b)
Securities Act  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(d)
Significant Subsidiary  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(a)
Spread  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.2(e)(ii)
Stock Consideration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.2(c)(ii)
Stock Election  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.4(b)
Stock Election Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.4(a)
Stock Election Shares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.4(e)
Subsidiary  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.1(b)
Taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(k)
TBCA  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      1.1(a)
Trading Day . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2.2(c)(ii)
Voting Debt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3.1(b)
WARN  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      5.13

</TABLE>


                                      -ix-
<PAGE>   11

                          AGREEMENT AND PLAN OF MERGER

                 AGREEMENT AND PLAN OF MERGER, dated as of August 11, 1996
(this "Agreement"), by and among Houston Industries Incorporated, a Texas
corporation ("HII"), Houston Lighting & Power Company, a Texas corporation and
a wholly owned subsidiary of HII ("HL&P"), HI Merger, Inc., a Delaware
corporation and a direct wholly owned subsidiary of HII ("Merger Sub"), and
NorAm Energy Corp., a Delaware corporation ("NorAm").

                 WHEREAS, HII and NorAm have determined to engage in a
strategic business combination;

                 WHEREAS, in furtherance thereof, the respective Boards of
Directors of HII, HL&P, Merger Sub and NorAm have approved this Agreement and
the merger of NorAm with and into Merger Sub, with Merger Sub being the
surviving corporation (the "NorAm Merger"), and the respective Boards of
Directors of HII and HL&P have approved the merger of HII with and into HL&P,
with HL&P being the surviving corporation (the "HII/HL&P Merger," and together
with the NorAm Merger, the "Mergers"), which merger would occur immediately
prior to the NorAm Merger;

                 WHEREAS, the respective Boards of Directors of HII, HL&P,
Merger Sub and NorAm (i) have approved, but only in the circumstances set forth
in Section 8.1 and then in lieu of the Mergers, the merger of NorAm and HII
with and into HL&P, with HL&P being the surviving corporation (the "Alternative
Merger") and (ii) have approved, but only in the circumstances set forth in
Section 8.5 and then in lieu of the Mergers, the merger of NorAm with and into
Merger Sub, with Merger Sub being the surviving corporation (the "Second
Alternative Merger");

                 WHEREAS, the respective Boards of Directors of HII, HL&P,
Merger Sub and NorAm have determined that it is in the best interests of their
respective stockholders for the Mergers (or, if applicable, the Alternative
Merger or the Second Alternative Merger) to be effected upon the terms and
subject to the conditions of this Agreement;

                 WHEREAS, for federal income tax purposes, it is intended that
each of the HII/HL&P Merger and the NorAm Merger (or if applicable, the
Alternative Merger or the Second Alternative Merger) shall qualify as a
reorganization within the meaning of Section 368(a) of the Internal Revenue
Code of 1986, as amended (the "Code"), and this Agreement is intended to be and
is adopted as a plan of reorganization within the meaning of Section 368(b) of
the Code; and

                 WHEREAS, HII, HL&P, Merger Sub and NorAm desire to make
certain representations, warranties, covenants and agreements in connection
with the Mergers (or, if applicable, the Alternative Merger or the Second
Alternative Merger) and also to prescribe various conditions to the Mergers
(or, if applicable, the Alternative Merger or the Second Alternative Merger);




                                     -1-
<PAGE>   12

                 NOW, THEREFORE, in consideration of the foregoing and the
representations, warranties, covenants and agreements herein contained, the
parties hereto agree as follows:

                                   ARTICLE I

                                  THE MERGERS

                 1.1      The Mergers; Effective Time of the Mergers.  Upon the
terms and subject to the conditions of this Agreement:

                 (a)      The HII/HL&P Merger.  At the HII/HL&P Merger
         Effective Time (as hereinafter defined), HII shall be merged with and
         into HL&P in accordance with the Texas Business Corporation Act (the
         "TBCA").  As soon as practicable at or after the closing of the
         Mergers (the "Closing"), articles of merger, prepared and executed in
         accordance with the relevant provisions of the TBCA, with respect to
         the HII/HL&P Merger (the "HII/HL&P Merger Articles of Merger") shall
         be filed with the Secretary of State of the State of Texas.  The
         HII/HL&P Merger Articles of Merger shall state that the HII/HL&P
         Merger is to become effective immediately upon filing of the HII/HL&P
         Merger Articles of Merger with the Secretary of State of the State of
         Texas or, if agreed to by HII, HL&P and NorAm, at such time thereafter
         as is provided in the HII/HL&P Merger Articles of Merger.  The
         HII/HL&P Merger shall become effective at the time of the issuance of
         the certificate of merger with respect to the HII/HL&P Merger (the
         "HII/HL&P Merger Certificate of Merger") by the Secretary of State of
         the State of Texas or, if a later effective time was provided in the
         HII/HL&P Merger Articles of Merger, such later time (the "HII/HL&P
         Merger Effective Time").

                 (b)      The NorAm Merger.  At the NorAm Merger Effective Time
         (as hereinafter defined), NorAm shall be merged with and into Merger
         Sub in accordance with the Delaware General Corporation Law (the
         "DGCL").  As soon as practicable at or after the Closing, a
         certificate of merger, prepared and executed in accordance with the
         relevant provisions of the DGCL, with respect to the NorAm Merger (the
         "NorAm Merger Certificate of Merger") shall be filed with the
         Secretary of State of the State of Delaware.  The NorAm Merger
         Certificate of Merger shall state that the NorAm Merger shall become
         effective immediately following the HII/HL&P Merger Effective Time or,
         if agreed to by HL&P, Merger Sub and NorAm, at such time thereafter as
         is provided in the NorAm Merger Certificate of Merger.  The NorAm
         Merger shall become effective at the time that the NorAm Merger
         Certificate of Merger shall be duly filed with the Secretary of State
         of the State of Delaware or, if a later effective time was provided in
         the NorAm Merger Certificate of Merger, such later time (the "NorAm
         Merger Effective Time" or the "Effective Time").  The effective time
         specified in the HII/HL&P Merger Articles of Merger shall be prior to
         the effective time specified in the NorAm Merger Certificate of
         Merger.

                 1.2      Closing.  The Closing shall take place at 10:00 a.m.
on a date to be specified by the parties, which shall be no later than the
fifth business day after satisfaction (or waiver in 



                                     -2-
<PAGE>   13

accordance with this Agreement) of the latest to occur of the conditions set
forth in Article VI (the "Closing Date"), at the offices of Baker & Botts,
L.L.P., 910 Louisiana, Houston, Texas 77002, unless another date or place is
agreed to in writing by the parties.                                        

                 1.3      Effects of the HII/HL&P Merger.

                 (a)      At the HII/HL&P Merger Effective Time: (i) HII shall
         be merged with and into HL&P, the separate existence of HII shall
         cease and HL&P shall continue as the surviving corporation (HII and
         HL&P are sometimes referred to herein as the "HII/HL&P Merger
         Constituent Corporations" and HL&P is sometimes referred to herein as
         the "HII/HL&P Merger Surviving Corporation"); (ii) Article I and
         Article VI of the Restated Articles of Incorporation of HL&P shall be
         amended as set forth in Exhibit A hereto and, as so amended, such
         Restated Articles of Incorporation shall be the Articles of
         Incorporation of the HII/HL&P Merger Surviving Corporation; and (iii)
         the Bylaws of HII as in effect immediately prior to the HII/HL&P
         Merger Effective Time shall be the Bylaws of the HII/HL&P Merger
         Surviving Corporation.

                 (b)      The directors and officers of HII at the HII/HL&P
         Merger Effective Time shall, from and after the HII/HL&P Merger
         Effective Time, be the initial directors and officers of the HII/HL&P
         Merger Surviving Corporation and shall serve until their successors
         have been duly elected or appointed and qualified or until their
         earlier death, resignation or removal in accordance with the
         HII/HL&P Merger Surviving Corporation's Articles of Incorporation and
         Bylaws.  Each officer of HL&P at the HII/HL&P Merger Effective Time
         shall, from and after the HII/HL&P Merger Effective Time, hold the
         same office at the Houston Lighting & Power Company Division of the
         HII/HL&P Merger Surviving Corporation as held at HL&P immediately
         prior to the HII/HL&P Merger Effective Time and shall serve in such
         office until his or her successor has been duly appointed and
         qualified or until his or her earlier death, resignation or removal in
         accordance with the HII/HL&P Merger Surviving Corporation's Articles
         of Incorporation and Bylaws.

                 (c)      The HII/HL&P Merger shall have the effects set forth
         in this Section 1.3 and the applicable provisions of the TBCA.

                 1.4      Effects of the NorAm Merger.

                 (a)      At the NorAm Merger Effective Time: (i) NorAm shall
         be merged with and into Merger Sub, the separate existence of NorAm
         shall cease and Merger Sub shall continue as the surviving corporation
         (Merger Sub and NorAm are sometimes referred to herein as the "NorAm
         Merger Constituent Corporations" and Merger Sub is sometimes referred
         to herein as the "NorAm Merger Surviving Corporation"); (ii) the
         Certificate of Incorporation of Merger Sub shall be amended to change
         the name of Merger Sub to "NorAm Energy Corp.," and, as so amended,
         such Certificate of Incorporation shall be the Certificate of
         Incorporation of the NorAm Merger Surviving Corporation; and (iii) the
         Bylaws of Merger 




                                     -3-

<PAGE>   14
         
         Sub as in effect immediately prior to the NorAm Merger Effective Time 
         shall be the Bylaws of the NorAm Merger Surviving Corporation.    

                 (b)      The directors of Merger Sub at the NorAm Merger
         Effective Time shall, from and after the NorAm Merger Effective Time,
         be the initial directors of the NorAm Merger Surviving Corporation and
         the officers of NorAm at the NorAm Merger Effective Time shall, from
         and after the NorAm Merger Effective Time, be the initial officers of
         the NorAm Merger Surviving Corporation, and such directors and
         officers shall serve until their successors have been duly elected or
         appointed and qualified or until their earlier death, resignation or
         removal in accordance with the NorAm Merger Surviving Corporation's
         Certificate of Incorporation and Bylaws.

                 (c)      The NorAm Merger shall have the effects set forth in
         this Section 1.4 and the applicable provisions of the DGCL.

                                   ARTICLE II

               EFFECT OF THE MERGERS ON THE CAPITAL STOCK OF THE
               CONSTITUENT CORPORATIONS; EXCHANGE OF CERTIFICATES

                 2.1      Effect of HII/HL&P Merger on Capital Stock.  At the
HII/HL&P Merger Effective Time, by virtue of the HII/HL&P Merger and without
any action on the part of the holder of any shares of common stock, no par
value, of HII ("HII Common Stock") or capital stock of HL&P:

                 (a)      Cancellation of HL&P Common Stock.  Each issued and
         outstanding share of common stock, Class A, no par value, of HL&P
         ("HL&P Class A Common Stock") and each issued and outstanding share of
         common stock, Class B, no par value, of HL&P ("HL&P Class B Common
         Stock") that is owned directly or indirectly by HII shall be canceled
         and retired and shall cease to exist and no stock of HL&P or other
         consideration shall be delivered or deliverable in exchange therefor.

                 (b)      Cancellation of Treasury Stock and HL&P-Owned Stock.
         Each share of HII Common Stock and each associated right (a "HII Stock
         Purchase Right") to purchase one two-hundredth of a share of Series A
         Preference Stock, no par value, of HII ("HII Series A Preference
         Stock"), and all other shares of capital stock of HII that are owned
         by HII as treasury stock and any shares of HII Common Stock and all
         other shares of capital stock of HII owned by HL&P, Merger Sub or any
         other wholly owned Subsidiary (as hereinafter defined) of HL&P or HII
         shall be canceled and retired and shall cease to exist and no stock of
         HL&P or other consideration shall be delivered or deliverable in
         exchange therefor.  All references in this Agreement to HII Common
         Stock shall be deemed to include the associated HII Stock Purchase
         Right.  As used in this Agreement, the word "Subsidiary" means, with
         respect to any party, any corporation or other organization, whether
         incorporated or unincorporated, of which: (i) such party or any other
         Subsidiary of such 



                                     -4-
<PAGE>   15


          party is a general partner (excluding partnerships, the general
          partnership interests of which are held by such party or any
          Subsidiary of such party that do not have a majority of the voting
          interest in such partnership); or (ii) at least a majority of the
          securities or other interests having by their terms ordinary voting
          power to elect a majority of the Board of Directors or others
          performing similar functions with respect to such corporation or other
          organization is, directly or indirectly, owned or controlled by such  
          party or by any one or more of its Subsidiaries, or by such party and
          any one or more of its Subsidiaries. 

                 (c)      Exchange of HII Common Stock.  Each share of HII
         Common Stock issued and outstanding immediately prior to the HII/HL&P
         Merger Effective Time (other than shares to be canceled in accordance
         with Section 2.1(b)) shall be converted into one share of common
         stock, no par value, of HII/HL&P Merger Surviving Corporation ("HL&P
         Common Stock"), together with the corresponding number of associated
         rights ("HL&P Stock Purchase Rights") to purchase one one-hundredth of
         a share of Series A Junior Preferred Stock, without par value, of
         HII/HL&P Merger Surviving Corporation ("HL&P Series A Preferred
         Stock") pursuant to an Amended and Restated Rights Agreement among
         HII, HL&P and Texas Commerce Bank National Association, as Rights
         Agent (the "HL&P Rights Agreement"). The HII Rights Agreement shall be
         amended and restated to become the HL&P Rights Agreement and shall
         provide for (i) the HII Stock Purchase Rights to be converted into
         HL&P Stock Purchase Rights and (ii) the HL&P Stock Purchase Rights to
         attach to shares of HL&P Common Stock issued as consideration in the
         NorAm Merger, and to make such other changes as HL&P determines are
         appropriate.  All references in this Agreement to the HL&P Common
         Stock to be received pursuant to the Mergers shall be deemed to
         include the associated HL&P Stock Purchase Rights.  All such shares of
         HII Common Stock, when so converted, shall no longer be outstanding
         and shall automatically be canceled and retired and shall cease to
         exist, and each holder of a certificate representing any such shares
         shall cease to have any rights with respect thereto, except the right
         to receive the shares of HL&P Common Stock.

                 (d)      Treatment of HII Stock Options.  Each unexpired
         option to purchase HII Common Stock issued by HII that is outstanding
         at the HII/HL&P Merger Effective Time (a "HII Stock Option"), whether
         or not exercisable, shall automatically and without any action on the
         part of the holder thereof be converted into an option to purchase the
         number of shares of HL&P Common Stock equal to the number of shares of
         HII Common Stock that could be purchased under such HII Stock Option
         at a price per share of HL&P Common Stock equal to the per share
         exercise price of such HII Stock Option.

                 (e)      HL&P Preferred Stock Unchanged.  Each issued and
         outstanding share of cumulative preferred stock, no par value, of HL&P
         shall not be converted or otherwise affected by the HII/HL&P Merger
         and shall remain outstanding after the HII/HL&P Merger.

                 2.2      Effect of NorAm Merger on Capital Stock.  At the
NorAm Merger Effective Time, by virtue of the NorAm Merger and without any
action on the part of the holder of any shares





                                     -5-

<PAGE>   16

of common stock, par value $.625 per share, of NorAm ("NorAm Common Stock") or
capital stock of Merger Sub:

                 (a)      Merger Sub Capital Stock Unchanged.  Each issued and
         outstanding share of the capital stock of Merger Sub shall not be
         converted or otherwise affected by the NorAm Merger and shall remain
         outstanding after the NorAm Merger.

                 (b)      Cancellation of Treasury Stock and HL&P-Owned Stock.
         Each share of NorAm Common Stock and all other shares of capital stock
         of NorAm that are owned by NorAm as treasury stock and any shares of
         NorAm Common Stock and all other shares of capital stock of NorAm
         owned by HL&P, Merger Sub or any other wholly owned Subsidiary of HL&P
         or NorAm shall be canceled and retired and shall cease to exist and no
         stock of HL&P or other consideration shall be delivered or deliverable
         in exchange therefor.

                 (c)      Exchange Ratio for NorAm Common Stock.

                          (i)     Subject to the provisions of Section 2.3(f)
                 hereof, each share of NorAm Common Stock issued and
                 outstanding immediately prior to the NorAm Merger Effective
                 Time (other than NorAm Dissenting Shares (as defined in
                 Section 2.2(d)) and shares to be canceled in accordance with
                 Section 2.2(b)) shall be converted into (x) the Stock
                 Consideration (as defined in Section 2.2(c)(ii)) or (y) $16.00
                 in cash (the "Cash Consideration"), in each case as the holder
                 thereof shall have elected or be deemed to have elected, in
                 accordance with Section 2.4 (collectively, the "Merger
                 Consideration"); provided, however, that, in any event, if
                 between the date of this Agreement and the NorAm Merger
                 Effective Time the outstanding shares of NorAm Common Stock or
                 HII Common Stock shall have been changed into a different
                 number of shares or a different class by reason of any stock
                 dividend, subdivision, reclassification, recapitalization,
                 split, combination or exchange of shares (other than, with
                 respect to the HII Common Stock, pursuant to the HII/HL&P
                 Merger), the Cash Consideration and the Stock Consideration
                 shall be correspondingly adjusted to reflect such stock
                 dividend, subdivision, reclassification, recapitalization,
                 split, combination or exchange of shares.  In the event the
                 Effective Time has not occurred by the date that is nine
                 months after the date hereof, the Cash Consideration shall be
                 increased by simple interest on such amount at the rate of 2%
                 per quarter from the date that is nine months after the date
                 hereof to the Effective Time (based on a year of 365 days).
                 All such shares of NorAm Common Stock, when so converted,
                 shall no longer be outstanding and shall automatically be
                 canceled and retired and shall cease to exist, and each holder
                 of a certificate representing any such shares shall cease to
                 have any rights with respect thereto, except the right to
                 receive the Stock Consideration or the Cash Consideration, as
                 the case may be, and cash in lieu of fractional shares of HL&P
                 Common Stock as contemplated by Section 2.3(f), to be issued
                 or paid in consideration therefor upon the surrender of such
                 certificate in accordance with Section 2.3, without interest.




                                     -6-
<PAGE>   17

                          (ii)    As used in this Agreement:

                          "Average Price" means the average of the closing
                 prices of HII Common Stock, rounded to four decimal places (if
                 the fifth, sixth and seventh decimal places of such average
                 are (x) 499 or lower, then the fourth decimal place of such
                 average shall remain the same, or (y) 500 or higher, then the
                 fourth decimal place of such average shall be increased by 1),
                 as reported in The Wall Street Journal's New York Stock
                 Exchange Composite Transaction Reports, for each of the first 
                 20 consecutive Trading Days in the period commencing 25 
                 Trading Days prior to the Closing Date.

                          "Stock Consideration" is (x) if the Average Price of
                 HII Common Stock is $21.25 or lower, .7529 shares of HL&P
                 Common Stock; (y) if the Average Price of HII Common Stock is
                 $26.00 or greater, .6154 shares of HL&P Common Stock; or (z)
                 if the Average Price of the HII Common Stock is greater than
                 $21.25 but less than $26.00, that portion of a share of HL&P
                 Common Stock equal to the quotient of $16.00 divided by the
                 Average Price of the HII Common Stock.

                          "Trading Day" means a day on which the New York Stock
                 Exchange (the "NYSE") is open for trading.

                 (d)      NorAm Dissenting Shares.  Notwithstanding anything in
         this Agreement to the contrary, no share of NorAm Common Stock, the
         holder of which shall not have voted shares in favor of the NorAm
         Merger and shall have properly complied with the provisions of Section
         262 of the DGCL as to appraisal rights (a "NorAm Dissenting Share"),
         shall be deemed converted into and to represent the right to receive
         Merger Consideration hereunder; and the holders of NorAm Dissenting
         Shares, if any, shall be entitled to payment, solely from the NorAm
         Merger Surviving Corporation, of the appraised value of such NorAm
         Dissenting Shares to the extent permitted by and in accordance with
         the provisions of Section 262 of the DGCL; provided, however, that (i)
         if any holder of NorAm Dissenting Shares shall, under the
         circumstances permitted by the DGCL, subsequently deliver a written
         withdrawal of his or her demand for appraisal of such NorAm Dissenting
         Shares, (ii) if any holder fails to establish his or her entitlement
         to rights to payment as provided in such Section 262 or (iii) if
         neither any holder of NorAm Dissenting Shares nor the NorAm Merger
         Surviving Corporation has filed a petition demanding a determination
         of the value of all NorAm Dissenting Shares within the time provided
         in such Section 262, such holder or holders (as the case may be) shall
         forfeit such right to payment for such NorAm Dissenting Shares
         pursuant to such Section 262 and each such NorAm Dissenting Share
         shall thereupon be treated as a Non-Election Share for purposes of
         Section 2.4.  NorAm shall give HII (i) prompt notice of any written
         demands for appraisal of any NorAm Common Stock, attempted withdrawals
         of such demands and any other instruments received by NorAm relating
         to stockholders' rights of appraisal and (ii) the opportunity to
         direct all negotiations and proceedings with respect to demands for
         appraisal under the DGCL.  NorAm shall not, except with the prior
         written consent of HII, voluntarily make any payment with respect to




                                     -7-


<PAGE>   18

         any demands for appraisals of NorAm Common Stock, offer to settle or
         settle any such demands or approve any withdrawal of any such demands.

                 (e)      Treatment of NorAm Stock Options.

                          (i)     Each holder of an unexpired employee stock
                 option to purchase NorAm Common Stock, along with any tandem
                 stock appreciation right, that is outstanding at the Effective
                 Time (a "NorAm Stock Option"), whether or not then
                 exercisable, shall be entitled within the NorAm Stock Option
                 Election Period (as hereinafter defined) to elect to either
                 (x) have all or any portion of his or her NorAm Stock Options
                 canceled and "cashed out" pursuant to Section 2.2(e)(ii) or
                 (y) have all or any portion of his or her NorAm Stock Options
                 assumed by HL&P as provided in Section 5.11.  Elections to be
                 made by holders of NorAm Stock Options shall be made on a form
                 mutually agreed upon by NorAm and HL&P (a "NorAm Stock Option
                 Election Form") to be provided by NorAm to such holders on the
                 day on which HL&P publicly announces the Closing Date (which
                 date shall be no less than five Trading Days prior to the
                 Closing Date).  To be effective, a NorAm Stock Option Election
                 Form must be properly completed, signed and submitted to HL&P
                 or its designated agent by 5:00 p.m. on the business day
                 immediately prior to the Closing Date. A holder of NorAm Stock
                 Options who does not make a proper election shall be deemed to
                 have elected to have his or her NorAm Stock Options "cashed
                 out" pursuant to Section 2.2(e)(ii).  For purposes of this
                 Agreement, the "NorAm Stock Option Election Period" means the
                 period of time beginning on the day on which HL&P publicly
                 announces the Closing Date and ending at 5:00 p.m. on the
                 business day immediately prior to the Closing Date.

                          (ii)    If a holder of NorAm Stock Options elects to
                 be "cashed out" pursuant to this Section or does not properly
                 make an election in accordance with Section 2.2(e)(i), the
                 NorAm Stock Options of such holder shall be canceled by NorAm
                 immediately prior to the Effective Time, and each such holder
                 of a canceled NorAm Stock Option shall be entitled to receive,
                 as soon as practicable after the Effective Time, in
                 consideration for the cancellation of such NorAm Stock Option
                 an amount in cash equal to the product (the "Spread") of (x)
                 the total number of shares of NorAm Common Stock subject to
                 such NorAm Stock Option and (y) the excess, if any, of (1) the
                 Cash Consideration over (2) the exercise price per share of
                 the NorAm Common Stock previously subject to such NorAm Stock
                 Option.

                 (f)      NorAm Convertible Debentures.  HL&P shall agree to
         assume all of NorAm's obligations under NorAm's 6% Convertible
         Subordinated Debentures due 2012 (the "NorAm Convertible Debentures"),
         including, without limitation, the conversion provisions of the NorAm
         Convertible Debentures.  Following the Effective Time, each
         outstanding NorAm Convertible Debenture will be convertible into the
         amount of Stock Consideration (and cash in lieu of fractional shares
         of HL&P Common Stock) and Cash Consideration which the holder thereof
         would have had the right to receive after the Effective Time if such
         NorAm




                                     -8-


<PAGE>   19
         Convertible Debenture had been converted immediately prior to the
         Effective Time and the holder thereof had made the Stock Election and
         received the Stock Consideration with respect to 50% of the shares of
         NorAm Common Stock issuable upon such conversion of the holder's NorAm
         Convertible Debentures and made the Cash Election and received the Cash
         Consideration with respect to the remaining 50% of such NorAm Common
         Stock.

                 (g)      NorAm Convertible Junior Debentures.  HL&P shall
         agree to assume all of NorAm's obligations under NorAm's 6 1/4%
         Convertible Junior Subordinated Debentures (the "NorAm Convertible
         Junior Debentures"), including, without limitation, the conversion
         provisions of the NorAm Convertible Junior Debentures.  Following the
         Effective Time, each outstanding NorAm Convertible Junior Debenture
         will be convertible into the amount of Stock Consideration (and cash
         in lieu of fractional shares of HL&P Common Stock) and Cash
         Consideration which the holder thereof would have had the right to
         receive after the Effective Time if such NorAm Convertible Junior
         Debenture had been converted immediately prior to the Effective Time
         and the holder thereof had made the Stock Election and received the
         Stock Consideration with respect to 50% of the shares of NorAm Common
         Stock issuable upon such conversion of the holder's NorAm Convertible
         Junior Debentures and made the Cash Election and received the Cash
         Consideration with respect to the remaining 50% of such NorAm Common
         Stock.

                 2.3      Exchange of Certificates.

                 (a)      Exchange of HII Common Stock.  Following the HII/HL&P
         Merger Effective Time, each holder of an outstanding certificate or
         certificates theretofore representing shares of HII Common Stock may,
         but shall not be required to, surrender the same to HL&P for
         cancellation or transfer, and each such holder or transferee will be
         entitled to receive certificates representing the same number of
         shares of HL&P Common Stock as the shares of HII Common Stock
         previously represented by the stock certificates surrendered.  Until
         so surrendered or presented for transfer, each outstanding
         certificate which, prior to the HII/HL&P Merger Effective Time,
         represented HII Common Stock shall be deemed and treated for all
         purposes to represent the ownership of the same number of shares of
         HL&P Common Stock as though such surrender or transfer and exchange
         had taken place.  The stock transfer books for the HII Common Stock
         shall be deemed to be closed at the HII/HL&P Merger Effective Time and
         no transfer of outstanding shares of HII Common Stock shall thereafter
         be made on such books, but when certificates that formerly represented
         shares of HII Common Stock are duly presented to HII/HL&P Merger
         Surviving Corporation or its transfer agent for exchange or transfer,
         HII/HL&P Merger Surviving Corporation will cause to be issued in
         respect thereof certificates representing an equal number of shares of
         HL&P Common Stock.

                 (b)      Exchange Agent.  As of the Effective Time, HL&P shall
         deposit with such bank or trust company designated by HL&P and
         reasonably acceptable to NorAm (the "Exchange Agent"), for the benefit
         of the holders of shares of NorAm Common Stock, for exchange in
         accordance with this Article II, through the Exchange Agent, cash
         equal to the 



                                     -9-

<PAGE>   20

         total aggregate Cash Consideration and certificates representing the
         shares of HL&P Common Stock (such shares of HL&P Common Stock, together
         with any dividends or distributions with respect thereto and the
         total aggregate Cash Consideration, being hereinafter referred to as
         the "Exchange Fund") issuable pursuant to Section 2.2 in exchange for
         outstanding shares of NorAm Common Stock. The Exchange Agent shall,
         pursuant to irrevocable instructions, deliver the Stock Consideration
         and the Cash Consideration contemplated to be issued pursuant to
         Section 2.2 out of the Exchange Fund.  The Exchange Fund shall not be
         used for any other purpose.

                 (c)      Exchange Procedures.  As soon as reasonably
         practicable after the Effective Time, the Exchange Agent shall mail to
         each holder of record of a certificate or certificates which,
         immediately prior to the Effective Time, represented outstanding
         shares of NorAm Common Stock (the "Certificates"), which holder's
         shares of NorAm Common Stock were converted into the right to receive
         the Merger Consideration: (i) a letter of transmittal (which shall
         specify that delivery shall be effected and risk of loss and title to
         the Certificates shall pass only upon delivery of the Certificates to
         the Exchange Agent, and shall be in such form and have such other
         provisions as HL&P may reasonably specify); and (ii) instructions for
         use in effecting the surrender of the Certificates in exchange for the
         Merger Consideration.  Upon surrender of a Certificate for
         cancellation to the Exchange Agent or to such other agent or agents as
         may be appointed by HL&P, together with such letter of transmittal,
         duly executed, and any other required documents, the holder of such
         Certificate shall be entitled to receive in exchange therefor a
         certificate representing that number of whole shares of HL&P Common
         Stock which such holder has the right to receive pursuant to the
         provisions of this Article II and cash in lieu of fractional shares of
         HL&P Common Stock as contemplated by Section 2.3(f) if such holder is
         entitled to receive the Stock Consideration, or cash, in an amount
         equal to the Cash Consideration, if such holder is entitled to receive
         the Cash Consideration, and the Certificate so surrendered shall
         forthwith be canceled.  In the event of a transfer of ownership of
         NorAm Common Stock which is not registered in the transfer records of
         NorAm, a certificate representing the appropriate number of shares of
         HL&P Common Stock may be issued to a transferee if the Certificate
         representing such NorAm Common Stock is presented to the Exchange
         Agent accompanied by all documents required to evidence and effect
         such transfer and by evidence that any applicable stock transfer taxes
         have been paid.  Until surrendered as contemplated by this Section
         2.3, each Certificate shall be deemed at any time after the Effective
         Time to represent only the right to receive upon such surrender the
         Merger Consideration.  The Exchange Agent shall not be entitled to
         vote or exercise any rights of ownership with respect to the HL&P
         Common Stock held by it from time to time hereunder, except that it
         shall receive and hold all dividends or other distributions paid or
         distributed with respect thereto for the account of persons entitled
         thereto.

                 (d)      Distributions with Respect to Unexchanged Shares.  No
         dividends or other distributions with respect to HL&P Common Stock
         declared or made after the Effective Time with a record date after the
         Effective Time shall be paid to the holder of any unsurrendered
         Certificate with respect to the right to receive shares of HL&P Common



                                     -10-


<PAGE>   21
         Stock represented thereby and no cash payment in lieu of fractional
         shares shall be paid to any such holder pursuant to Section 2.3(f)
         until the holder of such Certificate shall surrender such Certificate.
         Subject to the effect of applicable laws, following surrender of any
         such Certificate, there shall be paid to the holder thereof, without
         interest, if such holder is entitled to receive the Stock
         Consideration:  (i) at the time of such surrender, the amount of any
         cash payable in lieu of a fractional share of HL&P Common Stock to
         which such holder is entitled pursuant to Section 2.3(f) and the
         amount of dividends or other distributions with a record date after
         the Effective Time theretofore paid with respect to such whole shares
         of HL&P Common Stock; and (ii) at the appropriate payment date, the
         amount of dividends or other distributions with a record date after
         the Effective Time but prior to surrender and a payment date
         subsequent to surrender payable with respect to such whole shares of
         HL&P Common Stock.

                 (e)      No Further Ownership Rights in NorAm Common Stock.
         All shares of HL&P Common Stock issued upon the surrender for exchange
         of shares of NorAm Common Stock in accordance with the terms hereof
         (including any cash paid pursuant to Section 2.3(f)) shall be deemed
         to have been issued in full satisfaction of all rights pertaining to
         such shares of NorAm Common Stock, subject, however, to the NorAm
         Merger Surviving Corporation's obligation to pay any dividends or make
         any other distributions with a record date prior to the Effective Time
         that may have been declared or made by NorAm on such shares of NorAm
         Common Stock in accordance with the terms of this Agreement or prior
         to the date hereof and which remain unpaid at the Effective Time, and
         after the Effective Time there shall be no further registration of
         transfers on the stock transfer books of the NorAm Merger Surviving
         Corporation of the shares of NorAm Common Stock that were outstanding
         immediately prior to the Effective Time.  If, after the Effective
         Time, Certificates are presented to the NorAm Merger Surviving
         Corporation for any reason, they shall be canceled and exchanged as
         provided in this Article II.

                 (f)      No Fractional Shares.  No certificates or scrip
         representing fractional shares of HL&P Common Stock shall be issued
         upon the surrender for exchange of Certificates pursuant to this
         Article II, and, except as provided in this Section 2.3(f), no
         dividend or other distribution, stock split or interest shall relate
         to any such fractional security, and such fractional interests shall
         not entitle the owner thereof to vote or to any rights of a security
         holder of HL&P.  In lieu of any fractional security, each holder of
         shares of NorAm Common Stock who would otherwise have been entitled to
         a fraction of a share of HL&P Common Stock upon surrender of
         Certificates for exchange pursuant to this Article II will be paid an
         amount in cash (without interest) equal to such holder's proportionate
         interest in the sum of (i) the net proceeds from the sale or sales by
         the Exchange Agent in accordance with the provisions of this Section
         2.3(f), on behalf of all such holders, of the aggregate fractional
         shares of HL&P Common Stock issued pursuant to this Article II and
         (ii) the aggregate dividends or other distributions that are payable
         with respect to such shares of HL&P Common Stock pursuant to Section
         2.3(d) (such dividends and distributions being herein called the
         "Fractional Dividends").  As soon as practicable following the
         Effective Time, the Exchange Agent shall determine the excess of (x)
         the number of whole shares of 



                                     -11-

<PAGE>   22


         HL&P Common Stock delivered to the Exchange Agent by HL&P pursuant to
         Section 2.3(b) over (y) the aggregate number of whole shares of HL&P
         Common Stock to be distributed to the former holders of NorAm Common
         Stock pursuant to Section 2.3(c) (such excess being herein called the
         "Excess Securities") and the Exchange Agent, as agent for the former
         holders of NorAm Common Stock, shall sell the Excess Securities at the
         prevailing prices on the NYSE.  The sale of the Excess Securities by
         the Exchange Agent shall be executed on the NYSE through one or more
         member firms of the NYSE and shall be executed in round lots to the
         extent practicable.  HL&P shall pay all commissions, transfer taxes and
         other out-of-pocket transaction costs, including the expenses and      
         compensation of the Exchange Agent, incurred in connection with such
         sale of Excess Securities.  Until the net proceeds of such sale of
         Excess Securities and the Fractional Dividends have been distributed to
         the former stockholders of NorAm, the Exchange Agent will hold such
         proceeds and dividends in trust for such former stockholders.  As soon
         as practicable after the determination of the amount of cash to be paid
         to former stockholders of NorAm in lieu of any fractional interests,
         the Exchange Agent shall make available in accordance with this
         Agreement such amounts to such former stockholders.

                 (g)      Termination of Exchange Agent.  Any portion of the
         Exchange Fund and any cash in lieu of fractional shares of HL&P Common
         Stock made available to the Exchange Agent that remain undistributed
         to the former stockholders of NorAm for one year after the Effective
         Time shall be delivered to HL&P, upon demand, which shall thereafter
         act as the Exchange Agent, and any former stockholders of NorAm who
         have not theretofore complied with this Article II shall thereafter
         look only as a general creditor to HL&P for payment of their claim for
         the Merger Consideration and any cash in lieu of fractional shares of
         HL&P Common Stock and any dividends or distributions with respect to
         HL&P Common Stock if such holder is entitled to receive the Stock
         Consideration.

                 (h)      No Liability.  None of HII, HL&P, Merger Sub or NorAm
         shall be liable to any holder of shares of HII Common Stock, NorAm
         Common Stock or HL&P Common Stock, as the case may be, for such shares
         (or dividends or distributions with respect thereto), cash in lieu of
         fractional shares of HL&P Common Stock, Stock Consideration or Cash
         Consideration delivered to a public official pursuant to any
         applicable abandoned property, escheat or similar law.  Any amounts
         remaining unclaimed by holders of any such shares six years after the
         Effective Time (or such earlier date immediately prior to the time at
         which such amounts would otherwise escheat to or become property of
         any governmental entity) shall, to the extent permitted by applicable
         law, become the property of HL&P free and clear of any claims or
         interest of any such holders or their successors, assigns or personal
         representatives previously entitled thereto.

                 2.4      Allocation of Merger Consideration; Election
Procedures.

                 (a)      Allocation.  Notwithstanding anything in this
         Agreement to the contrary, the number of shares of NorAm Common Stock
         to be converted into the right to receive the Cash Consideration in
         the NorAm Merger (the "Cash Election Number") shall be equal to 



                                     -12-

<PAGE>   23

         (i) 50% of the number of shares of NorAm Common Stock issued and
         outstanding immediately prior to the Effective Time (ignoring for this
         purpose any NorAm Common Stock held as treasury shares and canceled
         pursuant to Section 2.2(b)) less (ii) the sum of (A) the number of
         NorAm Dissenting Shares, if any, which are not to be treated as
         Non-Election Shares (as defined in Section 2.4(b)) pursuant to Section
         2.2(d) determined as of the Effective Time, (B) the number of shares of
         NorAm Common Stock held by HL&P, Merger Sub or any other wholly owned
         Subsidiary of HL&P or NorAm to be canceled in accordance with Section
         2.2(b) and (C) the number of shares of NorAm Common Stock to be
         exchanged for cash pursuant to Section 2.3(f).  The number of shares of
         NorAm Common Stock to be converted into the right to receive the Stock
         Consideration in the NorAm Merger (the "Stock Election Number") shall
         be equal to the number of shares of NorAm Common Stock issued and
         outstanding immediately prior to the Effective Time (ignoring for this
         purpose any NorAm Common Stock held as treasury shares and canceled
         pursuant to Section 2.2(b)) less the sum of (i) the Cash Election
         Number, (ii) the number of NorAm Dissenting Shares, if any, which are
         not to be treated as Non-Election Shares pursuant to Section 2.2(d)
         determined as of the Effective Time, (iii) the number of shares of
         NorAm Common Stock held by HL&P, Merger Sub or any other wholly owned
         Subsidiary of HL&P or NorAm to be canceled in accordance with Section
         2.2(b) and (iv) the number of shares of NorAm Common Stock to be
         exchanged for cash pursuant to Section 2.3(f). Notwithstanding anything
         to the contrary herein, HII shall have the option, in its sole
         discretion, to change the Cash Election Number and the Stock Election
         Number to more closely follow the actual elections of the NorAm
         stockholders pursuant to this Section 2.4, so long as such modification
         to the Cash Election Number and the Stock Election Number does not
         prevent the conditions set forth in Sections 6.2(e) and 6.3(c) from
         being satisfied.  The parties hereto acknowledge that (i) the number of
         NorAm Dissenting Shares, if any, which are not to be treated as
         Non-Election Shares pursuant to Section 2.2(d) determined as of the
         Effective Time, (ii) the number of shares of NorAm Common Stock held by
         HL&P, Merger Sub or any other wholly owned Subsidiary of HL&P or NorAm
         to be canceled in accordance with Section 2.2(b) and (iii) the number
         of shares of NorAm Common Stock to be exchanged for cash pursuant to
         Section 2.3(f) are all treated under the published guidelines of the
         IRS as receiving cash in the mergers contemplated hereby.

                 (b)      Election.  Subject to allocation and proration in
         accordance with the provisions of this Section 2.4, each record holder
         of shares of NorAm Common Stock (other than NorAm Dissenting Shares,
         if any, which are not to be treated as Non-Election Shares pursuant to
         Section 2.2(d) and shares to be canceled in accordance with Section
         2.2(b)) issued and outstanding immediately prior to the Election
         Deadline (as defined in Section 2.4(c)) shall be entitled to elect to
         receive in respect of each such share (i) the Cash Consideration (a
         "Cash Election") or (ii) the Stock Consideration (a "Stock Election")
         or to indicate that such record holder has no preference as to the
         receipt of the Cash Consideration or the Stock Consideration for such
         shares (a "Non-Election").  Shares of NorAm Common Stock in respect of
         which a Non-Election is made (including shares in respect of which
         such an election is deemed to have been made pursuant to this Section
         2.4 and Section 2.2(d)) (collectively, "Non-Election Shares") shall be
         deemed by HL&P, in its sole and absolute 



                                     -13-

<PAGE>   24

         discretion, to be shares in respect of which Cash Elections or Stock
         Elections have been made.

                 (c)      Procedure for Elections.  Elections pursuant to
         Section 2.4(b) shall be made on a form to be mutually agreed upon by
         NorAm and HL&P (a "Form of Election") to be provided by the Exchange
         Agent for that purpose to holders of record of NorAm Common Stock,
         together with appropriate transmittal materials, at the time of
         mailing to holders of record of NorAm Common Stock of the Joint Proxy
         Statement (as defined in Section 3.1(c)(iii)).  Elections shall be
         made by mailing to the Exchange Agent a duly completed Form of
         Election.  To be effective, a Form of Election must be (i) properly
         completed, signed and submitted to the Exchange Agent at its
         designated office by 5:00 p.m. on the business day that is the Trading
         Day immediately prior to the Closing Date (which date shall be
         publicly announced by HL&P as soon as practicable but in no event less
         than five Trading Days prior to the Closing Date) (the "Election
         Deadline") and (ii) accompanied by the Certificates as to which the
         election is being made (or by an appropriate guarantee of delivery of
         such Certificates by a commercial bank or trust company in the United
         States or a member of a registered national security exchange or of
         the National Association of Securities Dealers, Inc., provided such
         Certificates are in fact delivered to the Exchange Agent within eight
         Trading Days after the date of execution of such guarantee of
         delivery).  NorAm shall use its best efforts to make a Form of
         Election available to all persons who become holders of record of
         NorAm Common Stock between the date of mailing described in the first
         sentence of this Section 2.4(c) and the Election Deadline.  HL&P shall
         determine, in its sole and absolute discretion, which authority it may
         delegate in whole or in part to the Exchange Agent, whether Forms of
         Election have been properly completed, signed and submitted or
         revoked.  The decision of HL&P (or the Exchange Agent, as the case may
         be) in such matters shall be conclusive and binding.  Neither HL&P nor
         the Exchange Agent will be under any obligation to notify any person
         of any defect in a Form of Election submitted to the Exchange Agent.
         A holder of shares of NorAm Common Stock that does not submit an
         effective Form of Election prior to the Election Deadline shall be
         deemed to have made a Non-Election.

                 (d)      Revocation of Election; Return of Certificates.  An
         election may be revoked, but only by written notice received by the
         Exchange Agent prior to the Election Deadline.  Any certificate(s)
         representing shares of NorAm Common Stock which have been submitted to
         the Exchange Agent in connection with an election shall be returned
         without charge to the holder thereof in the event such election is
         revoked as aforesaid and such holder requests in writing the return of
         such certificate(s).  Upon any such revocation, unless a duly
         completed Form of Election is thereafter submitted in accordance with
         Section 2.4(c), such shares shall be Non-Election Shares.  In the
         event that this Agreement is terminated pursuant to the provisions
         hereof and any shares of NorAm Common Stock have been transmitted to
         the Exchange Agent pursuant to the provisions hereof, such shares
         shall promptly be returned without charge to the person submitting the
         same.




                                     -14-
<PAGE>   25

                 (e)      Proration of Cash Election Shares.  In the event that
         the aggregate number of shares in respect of which Cash Elections have
         been made and, in the case of Non-Election Shares, are deemed to have
         been made (collectively, the "Cash Election Shares") exceeds the Cash
         Election Number, all shares of NorAm Common Stock in respect of which
         Stock Elections have been made and all Non-Election Shares in respect
         of which Stock Elections are deemed to have been made  (collectively,
         the "Stock Election Shares") shall be converted into the right to
         receive the Stock Consideration, and the Cash Election Shares shall be
         converted into the right to receive the Stock Consideration or the
         Cash Consideration in the following manner:

                          (i)     Cash Election Shares shall be deemed to be
                 Stock Election Shares, on a pro-rata basis for each record
                 holder of NorAm Common Stock with respect to those shares of
                 NorAm Common Stock, if any, of such record holder which are
                 Cash Election Shares, so that the number of Cash Election
                 Shares so deemed to be Stock Election Shares, when added to
                 the other Stock Election Shares, shall equal as closely as
                 practicable the Stock Election Number, and all such Cash
                 Election Shares so deemed to be Stock Election Shares shall be
                 converted into the right to receive the Stock Consideration
                 (and cash in lieu of fractional interests in accordance with
                 Section 2.3(f)); and

                          (ii)    any remaining Cash Election Shares shall be
                 converted into the right to receive the Cash Consideration.

                 (f)      Proration of Stock Election Shares.  In the event
         that the aggregate number of Stock Election Shares exceeds the Stock
         Election Number, all Cash Election Shares shall be converted into the
         right to receive the Cash Consideration, and all Stock Election Shares
         shall be converted into the right to receive the Stock Consideration
         or the Cash Consideration in the following manner:

                          (i)     Stock Election Shares shall be deemed to be
                 Cash Election Shares, on a pro-rata basis for each record
                 holder of NorAm Common Stock with respect to those shares of
                 NorAm Common Stock, if any, of such record holder which are
                 Stock Election Shares, so that the number of Stock Election
                 Shares so deemed to be Cash Election Shares, when added to the
                 other Cash Election Shares, shall equal as closely as
                 practicable the Cash Election Number, and all such Stock
                 Election Shares so deemed to be Cash Election Shares shall be
                 converted into the right to receive the Cash Consideration;
                 and

                          (ii)    the remaining Stock Election Shares shall be
                 converted into the right to receive the Stock Consideration
                 (and cash in lieu of fractional interests in accordance with
                 Section 2.3(f)).

                 (g)      No Proration.  In the event that neither paragraph
         (e) nor paragraph (f) of this Section 2.4 is applicable, all Cash
         Election Shares shall be converted into the right to receive 



                                     -15-
<PAGE>   26

         the Cash Consideration and all Stock Election Shares shall be converted
         into the right to receive the Stock Consideration (and cash in lieu
         of fractional interests in accordance with Section 2.3(f)).

                 (h)      Computations.  The Exchange Agent, in consultation
         with HL&P, shall make all computations to give effect to this Section
         2.4.

                                  ARTICLE III

                         REPRESENTATIONS AND WARRANTIES

                 3.1      Representations and Warranties of NorAm.  NorAm
represents and warrants to HII, HL&P and Merger Sub as follows, except as set
forth in the disclosure schedule dated as of the date hereof and signed by an
authorized officer of NorAm and delivered to HII by NorAm on or prior to the
date hereof (the "NorAm Disclosure Schedule"), each of which exceptions shall
specifically identify the relevant Section hereof to which it relates:

                 (a)      Organization, Standing and Power.  Each of NorAm and
         its Significant Subsidiaries (as hereinafter defined) is a corporation
         or partnership duly organized, validly existing and in good standing
         under the laws of its state of incorporation or organization, has all
         requisite power and authority to own, lease and operate its properties
         and to carry on its business as now being conducted, and is duly
         qualified and in good standing to do business in each jurisdiction in
         which the business it is conducting, or the operation, ownership or
         leasing of its properties, makes such qualification necessary, other
         than in such jurisdictions where the failure so to qualify would not
         have a Material Adverse Effect (as hereinafter defined).  NorAm has
         heretofore delivered to HII complete and correct copies of its
         Restated Certificate of Incorporation and Bylaws.  All Significant
         Subsidiaries of NorAm and their respective jurisdictions of
         incorporation or organization are identified on Schedule 3.1(a) of the
         NorAm Disclosure Schedule. As used in this Agreement: (i) a
         "Significant Subsidiary" means any Subsidiary of NorAm, HII or HL&P,
         as the case may be, that would constitute a Significant Subsidiary of
         such party within the meaning of Rule 1-02 of Regulation S-X of the
         Securities and Exchange Commission (the "SEC"); and (ii) a "Material
         Adverse Effect" or "Material Adverse Change" shall mean, in respect of
         NorAm or HII, as the case may be, any effect or change that is or, as
         far as can be reasonably determined, may be, materially adverse to the
         business, operations, assets, prospects, condition (financial or
         otherwise) or results of operations of such party and its Subsidiaries
         taken as a whole.

                 (b)      Capital Structure.  As of the date hereof, the
         authorized capital stock of NorAm consists of 250,000,000 shares of
         NorAm Common Stock and 10,000,000 shares of preferred stock, par value
         $0.10 per share (the "NorAm Preferred Stock").  At the close of
         business on July 31, 1996:  (i) 137,067,805 shares of NorAm Common
         Stock and no shares of NorAm Preferred Stock were issued and
         outstanding, and 4,906,322 shares of NorAm 



                                     -16-

<PAGE>   27

         Common Stock and no shares of NorAm Preferred Stock were reserved for
         issuance pursuant to NorAm's:

                 Incentive Equity Plan  . . . . . . . . . . . . . .  3,035,010 
                 1983 Non-Qualified Stock Option Plan . . . . . . .     11,000 
                 Diversified Energies Plan  . . . . . . . . . . . .     57,229
                 Restricted Stock Plan for Non-Employee Directors .     79,742
                 Employee Stock Purchase Plan . . . . . . . . . . .  1,723,341


         (collectively, the "NorAm Stock Plans"); (ii) no shares of NorAm
         Common Stock were held by NorAm in its treasury; and (iii) except for
         the NorAm Convertible Debentures and the NorAm Convertible Junior
         Debentures, no bonds, debentures, notes or other indebtedness having
         the right to vote (or convertible into securities having the right to
         vote) on any matters on which NorAm stockholders may vote ("Voting
         Debt") were issued or outstanding.  All outstanding shares of NorAm
         Common Stock are validly issued, fully paid and nonassessable and are
         not subject to preemptive rights.  All outstanding shares of capital
         stock of the Subsidiaries of NorAm are owned by NorAm, or a direct or
         indirect wholly owned Subsidiary of NorAm, free and clear of all
         liens, charges, encumbrances, claims and options of any nature.
         Except as set forth above and except for changes since July 31, 1996
         resulting from the exercise of employee stock options granted pursuant
         to, or from issuances or purchases under, the NorAm Stock Plans,
         NorAm's Direct Stock Purchase and Dividend Reinvestment Plans, NorAm's
         Annual Incentive Plan, the Restricted Stock Agreement between Milton
         Honea and NorAm dated January 31, 1996, the conversion of the NorAm
         Convertible Debentures or the NorAm Convertible Junior Debentures or
         as contemplated by this Agreement, there are outstanding: (A) no
         shares of capital stock, Voting Debt or other voting securities of
         NorAm; (B) no securities of NorAm or any Subsidiary of NorAm
         convertible into or exchangeable for shares of capital stock, Voting
         Debt or other voting securities of NorAm or any Subsidiary of NorAm;
         and (C) no options, warrants, calls, rights (including preemptive
         rights), commitments or agreements to which NorAm or any Subsidiary of
         NorAm is a party or by which it is bound in any case obligating NorAm
         or any Subsidiary of NorAm to issue, deliver, sell, purchase, redeem
         or acquire, or cause to be issued, delivered, sold, purchased,
         redeemed or acquired, additional shares of capital stock or any Voting
         Debt or other voting securities of NorAm or of any Subsidiary of
         NorAm, or obligating NorAm or any Subsidiary of NorAm to grant, extend
         or enter into any such option, warrant, call, right, commitment or
         agreement.  There are not as of the date hereof and there will not be
         at the NorAm Merger Effective Time any stockholder agreements, voting
         trusts or other agreements or understandings to which NorAm is a party
         or by which it is bound relating to the voting of any shares of the
         capital stock of NorAm that will limit in any way the solicitation of
         proxies by or on behalf of NorAm from, or the casting of votes by, the
         stockholders of NorAm with respect to the NorAm Merger.  There are no
         restrictions on NorAm to vote the stock of any of its Subsidiaries.




                                     -17-


<PAGE>   28
                 (c)      Authority; No Violations; Consents and Approvals.

                          (i)     The Board of Directors of NorAm has approved 
                 the NorAm Merger and this Agreement, by the unanimous vote of
                 all of the directors with no negative vote, and declared the
                 NorAm Merger and this Agreement to be in the best interests of
                 the stockholders of NorAm.  The directors have advised NorAm,
                 HII and HL&P that they intend to vote or cause to be voted all
                 of the shares of NorAm Common Stock beneficially owned by them
                 and their affiliates in favor of approval of the NorAm Merger
                 and this Agreement.  NorAm has all requisite corporate power
                 and authority to enter into this Agreement and, subject, with
                 respect to consummation of the NorAm Merger, to approval of
                 this Agreement and the NorAm Merger by the stockholders of
                 NorAm in accordance with the DGCL, to consummate the
                 transactions contemplated hereby.  The execution and delivery
                 of this Agreement and the consummation of the transactions
                 contemplated hereby have been duly authorized by all necessary
                 corporate action on the part of NorAm, subject, with respect to
                 consummation of the NorAm Merger, to approval of this Agreement
                 and the NorAm Merger by the stockholders of NorAm in accordance
                 with the DGCL.  This Agreement has been duly executed and
                 delivered by NorAm and, subject, with respect to consummation
                 of the NorAm Merger, to approval of this Agreement and the
                 NorAm Merger by the stockholders of NorAm in accordance with
                 the DGCL, and assuming this Agreement constitutes the valid and
                 binding obligation of HII, HL&P and Merger Sub, constitutes a
                 valid and binding obligation of NorAm enforceable in accordance
                 with its terms, subject, as to enforceability, to bankruptcy,
                 insolvency, reorganization and other laws of general
                 applicability relating to or affecting creditors' rights and to
                 general principles of equity.

                          (ii)    The execution and delivery of this Agreement
                 does not, and the consummation of the transactions
                 contemplated hereby and compliance with the provisions hereof
                 will not, conflict with, or result in any violation of, or
                 default (with or without notice or lapse of time, or both)
                 under, or give rise to a right of termination, cancellation or
                 acceleration of any obligation or to the loss of a material
                 benefit under, or result in the creation of any lien, security
                 interest, charge or encumbrance upon any of the properties or
                 assets of NorAm or any of its Subsidiaries under, any
                 provision of (A) the Restated Certificate of Incorporation or
                 Bylaws of NorAm or any provision of the comparable charter or
                 organizational documents of any of its Subsidiaries, (B)
                 subject to obtaining the third-party consents set forth in
                 Section 3.1(c)(ii) of the NorAm Disclosure Schedule (the
                 "NorAm Required Consents"), any loan or credit agreement,
                 note, bond, mortgage, indenture, lease or other agreement,
                 instrument, permit, concession, franchise or license
                 applicable to NorAm or any of its Subsidiaries or (C) assuming
                 the consents, approvals, authorizations or permits and filings
                 or notifications referred to in Section 3.1(c)(iii) are duly
                 and timely obtained or made and the approval of the NorAm
                 Merger and this Agreement by the stockholders of NorAm in
                 accordance with the DGCL has been obtained, any judgment,
                 order, decree, statute, law, ordinance, rule 



                                     -18-

<PAGE>   29

                 or regulation applicable to NorAm or any of its Subsidiaries or
                 any of their respective properties or assets, other than, in
                 the case of clause (B) or (C), any such conflicts,
                 violations, defaults, rights, liens, security interests,
                 charges or encumbrances that, individually or in the aggregate,
                 would not have a Material Adverse Effect on NorAm, materially
                 impair the ability of NorAm to perform its obligations
                 hereunder or prevent the consummation of any of the
                 transactions contemplated hereby.

                          (iii)   No consent, approval, order or authorization 
                 of, or registration, declaration or filing with, or
                 permit from any court, governmental, regulatory or
                 administrative agency or commission or other governmental
                 authority or instrumentality, domestic or foreign (a
                 "Governmental Entity"), is required by or with respect to NorAm
                 or any of its Subsidiaries in connection with the execution and
                 delivery of this Agreement by NorAm or the consummation by
                 NorAm of the transactions contemplated hereby, as to which the
                 failure to obtain or make would have a Material Adverse Effect,
                 except for: (A) the filing of a premerger notification report
                 by NorAm under the Hart-Scott-Rodino Antitrust Improvements Act
                 of 1976, as amended (the "HSR Act"), and the expiration or
                 termination of the applicable waiting period with respect
                 thereto; (B) the filing with the SEC of (x) a joint proxy
                 statement in preliminary and definitive form relating to the
                 meeting of NorAm's stockholders to be held in connection with
                 the NorAm Merger and the meeting of HII's shareholders to be
                 held in connection with the Mergers (the "Joint Proxy
                 Statement") and (y) such reports under Section 13(a) of the
                 Securities Exchange Act of 1934, as amended (the "Exchange
                 Act"), and such other compliance with the Exchange Act and the
                 rules and regulations thereunder, as may be required in
                 connection with this Agreement and the transactions
                 contemplated hereby; (C) the filing of the NorAm Merger
                 Certificate of Merger with the Secretary of State of the State
                 of Delaware; (D) filings with, and the approval of, or notices
                 to, the Arkansas Public Service Commission, the Louisiana
                 Public Service Commission, the Minnesota Public Utilities
                 Commission, the Oklahoma Corporation Commission and the
                 Mississippi Public Service Commission; (E) filings with, and
                 the approval of, or notices to, the Federal Energy Regulatory
                 Commission (the "FERC") in connection with the transfer of
                 NorAm Energy Services, Inc.'s power marketing certificate; (F)
                 such filings and approvals as are set forth on Section
                 3.1(c)(iii) of the NorAm Disclosure Schedule in connection with
                 the transfer of NorAm's municipal franchises; (G) such filings
                 and approvals as may be required by any applicable state
                 securities, "blue sky" or takeover laws or environmental laws;
                 and (H) such filings and approvals as may be required by any
                 foreign premerger notification, securities, corporate or other
                 law, rule or regulation.

                 (d)      SEC Documents.  NorAm has made available to HL&P a
         true and complete copy of each report, schedule, registration
         statement and definitive proxy statement filed by NorAm with the SEC
         since January 1, 1994 and prior to the date of this Agreement (the
         "NorAm SEC Documents") which are all the documents (other than
         preliminary material) 



                                     -19-

<PAGE>   30

         that NorAm was required to file with the SEC since such date.  As of
         their respective dates, the NorAm SEC Documents complied in all
         material respects with the requirements of the Securities Act of 1933,
         as amended (the "Securities Act"), or the Exchange Act, as the case may
         be, and the rules and  regulations of the SEC thereunder applicable to
         such NorAm SEC Documents, and none of the NorAm SEC Documents contained
         any untrue statement of a material fact or omitted to state a material
         fact required to be stated therein or necessary to make the statements
         therein, in light of the circumstances under which they were made, not
         misleading.  The financial statements of NorAm included in the NorAm
         SEC Documents complied as to form in all material respects with the
         published rules and regulations of the SEC with respect thereto, were
         prepared in accordance with generally accepted accounting principles
         ("GAAP") applied on a consistent basis during the periods involved
         (except as may be indicated in the notes thereto or, in the case of the
         unaudited statements, as permitted by Rule 10-01 of Regulation S-X of
         the SEC) and fairly present in accordance with applicable requirements
         of GAAP (subject, in the case of the unaudited statements, to normal,
         recurring adjustments, none of which will be material) the consolidated
         financial position of NorAm and its consolidated Subsidiaries as of
         their respective dates and the consolidated results of operations and
         the consolidated cash flows of NorAm and its consolidated Subsidiaries
         for the periods presented therein.  Except as disclosed in the NorAm
         SEC Documents, there are no agreements, arrangements or understandings
         between NorAm and any party who is at the date of this Agreement or was
         at any time prior to the date hereof but after January 1, 1994 an
         Affiliate (as defined in Section 4.1(k)) of NorAm that are required to
         be disclosed in the NorAm SEC Documents.

                 (e)      Information Supplied.  None of the information
         supplied or to be supplied by NorAm for inclusion or incorporation by
         reference in the Registration Statement on Form S-4 to be filed with
         the SEC by HL&P in connection with the issuance of shares of HL&P
         Common Stock in the Mergers (the "S-4") will, at the time the S-4
         becomes effective under the Securities Act or at the Effective Time,
         contain any untrue statement of a material fact or omit to state any
         material fact required to be stated therein or necessary to make the
         statements therein not misleading, and none of the information
         supplied or to be supplied by NorAm and included or incorporated by
         reference in the Joint Proxy Statement will, at the date mailed to
         stockholders of NorAm and the shareholders of HII or at the time of
         the meeting of such stockholders or shareholders to be held in
         connection with the Mergers or at the Effective Time, contain any
         untrue statement of a material fact or omit to state any material fact
         required to be stated therein or necessary in order to make the
         statements therein, in light of the circumstances under which they are
         made, not misleading.  If at any time prior to the Effective Time any
         event with respect to NorAm or any of its Subsidiaries, or with
         respect to other information supplied by NorAm for inclusion in the
         Joint Proxy Statement or the S-4, shall occur which is required to be
         described in an amendment of, or a supplement to, the Joint Proxy
         Statement or the S-4, such event shall be so described, and such
         amendment or supplement shall be promptly filed with the SEC and, as
         required by law, disseminated to the stockholders of NorAm.  The Joint
         Proxy Statement, insofar as it relates to NorAm or its Subsidiaries or
         other information supplied by NorAm for inclusion



                                     -20-


<PAGE>   31

         therein, will comply as to form in all material respects with the
         provisions of the Exchange Act and the rules and regulations
         thereunder.

                 (f)      Absence of Certain Changes or Events.  Except as
         disclosed in, or reflected in the financial statements included in,
         the NorAm SEC Documents, or except as contemplated by this Agreement,
         since December 31, 1995, there has not been: (i) any declaration,
         setting aside or payment of any dividend or other distribution
         (whether in cash, stock or property) with respect to any of NorAm's
         capital stock, except for regular quarterly cash dividends of $.07 per
         share on NorAm Common Stock (or a pro rata amount for any dividend
         less than a full quarter) with usual record and payment dates for such
         dividends; (ii) any amendment of any material term of any outstanding
         equity security of NorAm or any Subsidiary of NorAm; (iii) any
         repurchase, redemption or other acquisition by NorAm or any Subsidiary
         of NorAm of any outstanding shares of capital stock or other equity
         securities of, or other ownership interests in, NorAm or any
         Subsidiary of NorAm, except as contemplated by any NorAm Benefit Plans
         (as defined in Section 3.1(l)) and except for the exchange of NorAm's
         Series A Preferred Stock for NorAm Convertible Debentures; (iv) any
         material change in any method of accounting or accounting practice by
         NorAm or any Significant Subsidiary of NorAm; or (v) any other
         transaction, commitment, dispute or other event or condition
         (financial or otherwise) of any character (whether or not in the
         ordinary course of business) that could have a Material Adverse Effect
         on NorAm, except for general economic changes and changes that may
         affect the industries of NorAm or any of its Subsidiaries generally.

                 (g)      No Undisclosed Material Liabilities.  Except as
         disclosed in the NorAm SEC Documents, as of the date hereof, there are
         no liabilities of NorAm or any of its Subsidiaries of any kind
         whatsoever, whether accrued, contingent, absolute, determined,
         determinable or otherwise, that are reasonably likely to have a
         Material Adverse Effect on NorAm, other than: (i) liabilities
         adequately provided for on the balance sheet of NorAm dated as of
         March 31, 1996 (including the notes thereto) contained in NorAm's
         Quarterly Report on Form 10-Q for the quarter ended March 31, 1996;
         and (ii) liabilities under this Agreement.

                 (h)      No Default.  Neither NorAm nor any of its
         Subsidiaries is in default or violation (and no event has occurred
         which, with notice or the lapse of time or both, would constitute a
         default or violation) of any term, condition or provision of (i) their
         respective charter, bylaws or respective formation documentation, (ii)
         any note, bond, mortgage, indenture, license, agreement or other
         instrument or obligation to which NorAm or any of its Subsidiaries is
         now a party or by which NorAm or any of its Subsidiaries or any of
         their respective properties or assets may be bound (except for the
         requirement under certain of such instruments to file supplemental
         indentures as a result of the transactions contemplated hereby) or
         (iii) any order, writ, injunction, decree, statute, rule or regulation
         applicable to NorAm or any of its Subsidiaries, except in the case of
         (ii) and (iii) for defaults or violations which in the aggregate would
         not have a Material Adverse Effect on NorAm.



                                     -21-

<PAGE>   32

                 (i)      Compliance with Applicable Laws.  NorAm and its
         Subsidiaries hold all permits, licenses, variances, exemptions,
         orders, franchises and approvals of all Governmental Entities
         necessary for the lawful conduct of their respective businesses (the
         "NorAm Permits"), except where the failure so to hold would not have a
         Material Adverse Effect on NorAm.  NorAm and its Subsidiaries are in
         compliance with the terms of the NorAm Permits, except where the
         failure so to comply would not have a Material Adverse Effect on
         NorAm.  Except as disclosed in the NorAm SEC Documents, the businesses
         of NorAm and its Subsidiaries are not being conducted in violation of
         any law, ordinance or regulation of any Governmental Entity, except
         for possible violations which would not have a Material Adverse Effect
         on NorAm.  As of the date of this Agreement, neither NorAm nor any of
         its Subsidiaries has been notified of any pending investigation or
         review by any Governmental Entity or, to the best knowledge of NorAm,
         no investigation or review by any Governmental Entity with respect to
         NorAm or any of its Subsidiaries is threatened, other than those the
         outcome of which would not have a Material Adverse Effect on NorAm.

                 (j)      Litigation.  Except as disclosed in the NorAm SEC
         Documents, there is no suit, action or proceeding pending, or, to the
         best knowledge of NorAm, threatened against or affecting NorAm or any
         Subsidiary of NorAm ("NorAm Litigation"), and NorAm and its
         Subsidiaries have no knowledge of any facts that are likely to give
         rise to any NorAm Litigation, that (in any case) is reasonably likely
         to have a Material Adverse Effect on NorAm, nor is there any judgment,
         decree, injunction, rule or order of any Governmental Entity or
         arbitrator outstanding against NorAm or any Subsidiary of NorAm
         ("NorAm Order") that is reasonably likely to have a Material Adverse
         Effect on NorAm or its ability to consummate the transactions
         contemplated by this Agreement.

                 (k)      Taxes.  Except as would not, individually or in the
aggregate, have a Material Adverse Effect on NorAm:

                          (i)     Each of NorAm, each of its Subsidiaries and
                 any affiliated, combined or unitary group of which any such
                 corporation is or was a member has (A) timely (taking into
                 account any extensions) filed all federal income tax and all
                 other material federal and all material state, local and
                 foreign returns, declarations, reports, estimates, information
                 returns and statements ("Returns") required to be filed or
                 sent by or with respect to it in respect of any Taxes (as
                 hereinafter defined), (B) timely paid all Taxes that are due
                 and payable (except for audit adjustments not material in the
                 aggregate or to the extent that liability therefor is reserved
                 for in NorAm's most recent audited financial statements) for
                 which NorAm or any of its Subsidiaries may be liable, (C)
                 established reserves that are adequate for the payment of all
                 Taxes not yet due and payable with respect to the results of
                 operations of NorAm and its Subsidiaries through the date
                 hereof and (D) to the knowledge of NorAm or any Subsidiary of
                 NorAm, complied in all material respects with all applicable
                 laws, rules and regulations relating to the payment and
                 withholding of Taxes and has in all material respects timely
                 withheld from employee wages and paid over to the proper
                 governmental authorities all amounts required to be so
                 withheld and paid over.



                                     -22-

<PAGE>   33

                          (ii)    Section 3.1(k)(ii) of the NorAm Disclosure
                 Schedule sets forth the last taxable period through which the
                 federal income tax Returns of NorAm and any of its
                 Subsidiaries have been examined by the Internal Revenue
                 Service ("IRS") or otherwise closed.  Except to the extent
                 being contested in good faith, all material deficiencies
                 asserted as a result of such examinations and any examination
                 by any applicable state or local taxing authority have been
                 paid, fully settled or adequately provided for in NorAm's most
                 recent audited financial statements.  Except as adequately
                 provided for in the NorAm SEC Documents, no material federal,
                 state or local income or franchise tax audits or other
                 administrative proceedings or court proceedings are presently
                 pending with regard to any federal, state or local income or
                 franchise Taxes for which NorAm or any of its Subsidiaries
                 would be liable, and no material deficiency for any such
                 income or franchise Taxes has been proposed, asserted or
                 assessed pursuant to such examination against NorAm or any of
                 its Subsidiaries by any federal, state or local taxing
                 authority with respect to any period.

                          (iii)   Neither NorAm nor any of its Subsidiaries has
                 executed or entered into (or prior to the close of business on
                 the Closing Date will execute or enter into) with the IRS or
                 any taxing authority (A) any agreement or other document
                 extending or having the effect of extending the period for
                 assessments or collection of any federal, state or local
                 income or franchise Taxes for which NorAm or any of its
                 Subsidiaries would be liable or (B) a closing agreement
                 pursuant to Section 7121 of the Code, or any predecessor
                 provision thereof or any similar provision of state or local
                 income tax law that relates to the assets or operations of
                 NorAm or any of its Subsidiaries.

                          (iv)    Neither NorAm nor any of its Subsidiaries has
                 made an election under Section 341(f) of the Code or agreed to
                 have Section 341(f)(2) of the Code apply to any disposition of
                 a subsection (f) asset (as such term is defined in Section
                 341(f)(4) of the Code) owned by NorAm or any of its
                 Subsidiaries.

                          (v)     Except as set forth in the NorAm SEC
                 Documents, neither NorAm nor any of its Subsidiaries is a
                 party to, is bound by or has any obligation under any tax
                 sharing agreement or similar agreement or arrangement.

                 For purposes of this Agreement, "Taxes" shall mean any
         federal, state, county, local or foreign taxes, charges, fees, levies
         or other assessments, including, without limitation, all net income,
         gross income, sales and use, ad valorem, transfer, gains, profits,
         excise, franchise, real and personal property, gross receipts, capital
         stock, production, business and occupation, disability, employment,
         payroll, license, estimated, stamp, custom duties, severance or
         withholding taxes or charges imposed by any governmental entity, and
         includes any interest and penalties (civil or criminal) on or
         additions to any such taxes, charges, fees, levies or other
         assessments, and any expenses incurred in connection with the
         determination, settlement or litigation of any liability for any of
         the foregoing.



                                     -23-

<PAGE>   34

                 (l)      Employee Matters; ERISA.

                          (i)     Definitions.  For purposes of this Agreement,
                 the following terms shall have the meanings set forth below:

                          (A)     "NorAm Affiliate" means any Subsidiary of
                                  NorAm, and any other  trade or business,
                                  whether or not incorporated, that is under
                                  common control, or treated as a single
                                  employer, with NorAm under Section 414(b),
                                  (c), (m) or (o) of the Code;

                          (B)     "NorAm Benefit Plan" means each benefit plan,
                                  program, policy, contract or arrangement
                                  described in subsections 3.1(l)(ii)(A)(1),
                                  (2) and (3) below (whether or not
                                  terminated);

                          (C)     "NorAm Pension Benefit Plan" means each
                                  "employee pension benefit plan" (within the
                                  meaning of Section 3(2) of ERISA) subject to
                                  Title IV of ERISA or the minimum funding
                                  requirements of Section 302 of ERISA that is
                                  or was maintained or contributed to by NorAm
                                  or any NorAm Affiliate at any time during the
                                  six calendar year period immediately
                                  preceding the date hereof;

                          (D)     "ERISA" means the Employee Retirement Income 
                                  Security Act of 1974, as amended;

                          (E)     "PBGC" means the Pension Benefit Guaranty 
                                   Corporation; and

                          (F)     "Reportable Event" means an event
                                  constituting a "reportable event" within the
                                  meaning of Section 4043(c) of ERISA for which
                                  the 30-day notice requirement or penalty has
                                  not been waived by the PBGC.

                          (ii)    Benefit Plans.

                          (A)     Section 3.1(l)(ii)(A) of the NorAm Disclosure
                                  Schedule contains a true and complete list,
                                  as of the date hereof, of each item described
                                  below, whether formal or informal, written or
                                  unwritten, legally binding or not:

                                  (1)    each "employee benefit plan" within
                                         the meaning of Section 3(3) of ERISA
                                         that is or was maintained or
                                         contributed to at any time during the
                                         six calendar year period immediately
                                         preceding the date hereof by NorAm or
                                         any NorAm Affiliate and each similar
                                         plan, program, policy or arrangement
                                         maintained for non-employee directors
                                         or other 



                                     -24-


<PAGE>   35
                                         non-employees who have provided 
                                         services to NorAm or any NorAm
                                         Affiliate;

                                  (2)    each plan, program, policy, payroll
                                         practice or arrangement not listed in
                                         (1) above that provides for bonuses,
                                         profit-sharing, incentive
                                         compensation, deferred compensation,
                                         equity-based compensation (including
                                         stock options or other stock
                                         purchases, restricted stock, stock
                                         appreciation rights, performance units
                                         and dividend equivalents), holiday
                                         pay, vacation pay, sick pay, dependent
                                         care benefits, flexible benefits
                                         (including any cafeteria plan governed
                                         by Section 125 of the Code), paid or
                                         unpaid leave (including sick leave,
                                         parental leave, military leave and
                                         bereavement leave), tuition
                                         assistance, relocation or any similar
                                         type of benefits, that has been
                                         adopted or implemented by NorAm or any
                                         NorAm Affiliate (including any such
                                         plan, program, policy or arrangement
                                         that has been terminated before the
                                         date hereof, if NorAm or any NorAm
                                         Affiliate could have statutory or
                                         contractual liability with respect to
                                         the arrangement on or after the date
                                         hereof); and

                                  (3)    each employment contract, severance
                                         contract, parachute agreement, option
                                         agreement, stock appreciation right
                                         agreement, bonus or other incentive
                                         award agreement, deferred compensation
                                         agreement, supplemental benefit
                                         agreement, split dollar agreement or
                                         other personal service or benefit
                                         contract or arrangement with or
                                         covering a current or former officer,
                                         director, employee or independent
                                         contractor of NorAm or any NorAm
                                         Affiliate.

                          (B)     With respect to each NorAm Benefit Plan,
                                  Section 3.1(l)(ii)(B) of the NorAm Disclosure
                                  Schedule fully and accurately identifies the
                                  source or sources of benefit payments under
                                  the plan (including, where applicable, the
                                  identity of any trust (whether or not a
                                  grantor trust), insurance contract, custodial
                                  account, agency agreement or other
                                  arrangement that holds the assets of, or
                                  serves as a funding vehicle or source of
                                  benefits for, such NorAm Benefit Plan).

                          (iii)   Contributions.  All material contributions
                 and other material payments required to have been made by
                 NorAm or any NorAm Affiliate under Section 412 of the Code or
                 pursuant to any NorAm Benefit Plan (or to any person pursuant
                 to the terms thereof) have been timely made or will be timely
                 made in accordance with Section 404(a)(6) of the Code and all
                 such amounts properly accrued through the date of this
                 Agreement have been reflected in the financial 





                                      -25-


<PAGE>   36
                 statements of NorAm included in NorAm's Annual Report on
                 Form 10-K for the fiscal year ended December 31, 1995.

                          (iv)    Qualification; Compliance.

                          (A)     Each NorAm Benefit Plan that is intended to
                                  be "qualified" within the meaning of Section
                                  401(a) of the Code (1) to the knowledge of
                                  NorAm, currently meets all qualification
                                  requirements under the Code both in form and
                                  in operation and (2) has received a favorable
                                  determination letter from the IRS on its
                                  qualification or application for such a
                                  determination has been made prior to the
                                  expiration of the applicable remedial
                                  amendment period and NorAm agrees to make
                                  such plan amendments as the IRS may require
                                  in order to issue a favorable determination
                                  letter.

                          (B)     To the knowledge of NorAm, NorAm and each
                                  NorAm Affiliate are in compliance with, and
                                  each NorAm Benefit Plan is and has been
                                  operated in compliance with, all applicable
                                  laws, rules and regulations governing such
                                  plan, including, without limitation, ERISA
                                  and the Code, except for violations that
                                  could not have a Material Adverse Effect on
                                  NorAm.  All amendments and actions required
                                  to bring each of the NorAm Benefit Plans into
                                  conformity with all of the applicable
                                  provisions of ERISA and the Code and other
                                  applicable legal requirements have been made
                                  or taken except to the extent that such
                                  amendments or actions are not required by law
                                  to be made or taken until a date after the
                                  Effective Time.

                          (C)     To the knowledge of NorAm, each NorAm Benefit
                                  Plan or related trust that is or was intended
                                  to satisfy the requirements of Section 125,
                                  401(k) or 501(c)(9) of the Code has met and
                                  continues to meet all material requirements
                                  under the applicable section of the Code.

                          (D)     To the knowledge of NorAm, no individual or
                                  entity has engaged in any transaction in
                                  connection with which NorAm or any NorAm
                                  Affiliate, or any NorAm Benefit Plan or any
                                  trust, trustee or administrator thereof,
                                  could be subject to liability pursuant to
                                  Section 409 or Section 502 of ERISA, or
                                  subject to an excise tax pursuant to Section
                                  4975 of the Code, which could in either case
                                  have a Material Adverse Effect on NorAm.



                                     -26-

<PAGE>   37

                          (E)     To the knowledge of NorAm:

                                  (1)    no NorAm Benefit Plan is subject to
                                         any ongoing audit, investigation or
                                         other administrative proceeding of the
                                         IRS, the Department of Labor or any
                                         other Governmental Entity or is
                                         scheduled to be subject to such an
                                         audit, investigation or proceeding;
                                         and

                                  (2)    no NorAm Benefit Plan is the subject
                                         of any pending application for
                                         administrative relief under any
                                         voluntary compliance program of any
                                         Governmental Entity (including,
                                         without limitation, the IRS' Voluntary
                                         Compliance Resolution Program or
                                         Walk-in Closing Agreement Program, or
                                         the Department of Labor's Delinquent
                                         Filer Voluntary Compliance Program).

                          (v)     Liabilities.

                          (A)     Pension Benefit Plans.  With respect to the
                                  NorAm Pension Benefit Plans, individually and
                                  in the aggregate, no termination or partial
                                  termination of any NorAm Pension Benefit Plan
                                  or other event has occurred, and, to the
                                  knowledge of NorAm, there exists no condition
                                  or set of circumstances that could subject
                                  NorAm or any NorAm Affiliate to any liability
                                  arising under the Code, ERISA or any other
                                  applicable law (including, without
                                  limitation, any liability to or under any
                                  such plan or to the PBGC, or under any
                                  indemnity agreement to which NorAm or any
                                  NorAm Affiliate is a party), which liability
                                  could have a Material Adverse Effect on NorAm
                                  (excluding liability for benefit claims and
                                  funding obligations payable in the ordinary
                                  course and liability for PBGC insurance
                                  premiums payable in the ordinary course).

                          (B)     Insurance Policies.  With respect to each
                                  NorAm Benefit Plan that is funded wholly or
                                  partially through an insurance policy, there
                                  will be no liability of NorAm or any NorAm
                                  Affiliate, which could have a Material
                                  Adverse Effect on NorAm, in the nature of a
                                  retroactive rate adjustment, loss sharing
                                  arrangement or other actual or contingent
                                  liability under such policy and arising
                                  wholly or partially out of events occurring
                                  prior to the Effective Time.

                          (vi)    Welfare Plans.  (A) No NorAm Benefit Plan
                 that is a "welfare plan" (within the meaning of Section 3(1)
                 of ERISA) provides benefits for any retired or former
                 employees (other than as required pursuant to Section 601 of
                 ERISA) and 




                                     -27-

<PAGE>   38

                 (B) to the knowledge of NorAm, no circumstances exist
                 that could subject NorAm or any NorAm Affiliate to an excise
                 tax under Section 4976 of the Code.

                          (vii)   Documents Made Available.  NorAm has made
                 available to HII a true and correct copy of each collective
                 bargaining agreement to which NorAm or any NorAm Affiliate is
                 a party or under which NorAm has obligations; and, with
                 respect to each NorAm Benefit Plan, NorAm has made available
                 to HII a true and correct copy of each of the following, as
                 applicable:

                          (A)     the current plan document (including all
                                  amendments adopted since the most recent
                                  restatement) and its most recently prepared
                                  summary plan description and all summaries of
                                  material modifications prepared since the
                                  most recent summary plan description, and all
                                  material employee communications relating to
                                  such plan;

                          (B)     annual reports or Code Section 6039D
                                  information returns (IRS Form 5500 Series),
                                  including financial statements, for the last
                                  three years;

                          (C)     all contracts relating to any plan with
                                  respect to which NorAm or any NorAm Affiliate
                                  may have any liability, including, without
                                  limitation, each related trust agreement,
                                  insurance contract, service provider
                                  contract, subscription or participation
                                  agreement, or investment management agreement
                                  (including all amendments to each such
                                  document);

                          (D)     the most recent IRS determination letter or
                                  other opinion letter with respect to the
                                  qualified status under Code Section 401(a) of
                                  such plan or under Code Section 501(c)(9) of
                                  the related trust; and

                          (E)     actuarial reports or valuations for the last 
                                  three years.

                          (viii)  Payments Resulting From Merger.  The
                 consummation or announcement of any transaction contemplated
                 by this Agreement will not (either alone or upon the
                 occurrence of any additional or further acts or events) result
                 in any:

                          (A)     payment (whether of severance pay or
                                  otherwise) becoming due from HII, any HII
                                  Affiliate (as defined in Section 3.2(l)(i)),
                                  NorAm or any NorAm Affiliate to any current
                                  or former officer, director, employee or
                                  independent contractor of NorAm or any NorAm
                                  Affiliate or to the trustee under any "rabbi
                                  trust" or other funding arrangement; or

                          (B)     benefit under any NorAm Benefit Plan being
                                  established or increased or becoming
                                  accelerated, vested or payable, except for a
                                  payment or 



                                     -28-

<PAGE>   39
                                  benefit that would have been payable under 
                                  the same terms and conditions without regard 
                                  to the transactions contemplated by this 
                                  Agreement.

                          (ix)    Funded Status of Plans.  (A)  Each NorAm
                 Pension Benefit Plan has assets that, as of January 1, 1996,
                 have a fair market value equal to or exceeding the present
                 value of the accrued benefit obligations thereunder on a
                 termination basis, as of January 1, 1996, based on the
                 actuarial methods, tables and assumptions theretofore utilized
                 by such plan's actuary in preparing such plan's most recently
                 prepared FAS 87 actuarial valuation report and provided by
                 NorAm to HII, and NorAm is not aware of any existing facts or
                 circumstances that would materially change the funded status
                 of any NorAm Pension Benefit Plan and (B) no NorAm Pension
                 Benefit Plan has incurred any "accumulated funding deficiency"
                 (within the meaning of Section 302 of ERISA or Section 412 of
                 the Code).

                          (x)     Multiemployer Plans.

                          (A)     No NorAm Benefit Plan is or was a
                                  "multiemployer plan" (within the meaning of
                                  Section 4001(a)(3) of ERISA), a multiple
                                  employer plan described in Section 413(c) of
                                  the Code or a "multiple employer welfare
                                  arrangement" (within the meaning of Section
                                  3(40) of ERISA); and none of NorAm or any
                                  NorAm Affiliate has been obligated to
                                  contribute to, or otherwise has or has had
                                  any liability with respect to, any
                                  multiemployer plan, multiple employer plan,
                                  or multiple employer welfare arrangement.

                          (B)     With respect to any NorAm Benefit Plan that
                                  is listed in Section 3.1(l)(x)(A) of the
                                  NorAm Disclosure Schedule as a multiemployer
                                  plan, neither NorAm nor any NorAm Affiliate
                                  has made or incurred a "complete withdrawal"
                                  or a "partial withdrawal," as such terms are
                                  defined in Sections 4203 and 4205 of ERISA,
                                  therefrom at any time during the six calendar
                                  year period immediately preceding the date of
                                  this Agreement and the transactions
                                  contemplated by the Agreement will not, in
                                  and of themselves, give rise to such a
                                  "complete withdrawal" or "partial
                                  withdrawal."

                          (xi)    Modification or Termination of Plans.
                 Neither NorAm nor any NorAm Affiliate is subject to any legal,
                 contractual, equitable or other obligation (nor have they any
                 formal plan or commitment, whether legally binding or not) to
                 enter into any form of compensation or employment agreement or
                 to establish any employee benefit plan of any nature,
                 including (without limitation) any pension, profit sharing,
                 welfare, post-retirement welfare, stock option, stock or cash
                 award, non-qualified deferred compensation or executive
                 compensation plan, policy or 



                                     -29-

<PAGE>   40
          
                 practice or to modify or change any existing NorAm Benefit
                 Plan. NorAm or one or more NorAm Affiliates have the right to,
                 in any manner, and without the consent of any employee,
                 beneficiary or dependent, employees' organization or other
                 person, terminate, modify or amend any NorAm Benefit Plan (or
                 their participation in any such NorAm Benefit Plan) at any time
                 sponsored, maintained or contributed to by NorAm or any NorAm
                 Affiliate, effective as of any date before, on or after the
                 Effective Time except to the extent that any retroactive
                 amendment would be prohibited by Section 204(g) of ERISA or
                 would adversely affect a vested accrued benefit or a previously
                 granted award under any such plan not subject to Section 204(g)
                 of ERISA.

                          (xii)   Reportable Events; Claims.

                          (A)     No Reportable Event has occurred with respect
                                  to any NorAm Pension Benefit Plan that could
                                  have a Material Adverse Effect on NorAm, and

                          (B)     no liability, claim, action or litigation
                                  exists, has been made, commenced or, to the
                                  knowledge of NorAm, threatened, by or against
                                  NorAm or any NorAm Affiliate with respect to
                                  any NorAm Benefit Plan (other than for
                                  benefits or PBGC premiums payable in the
                                  ordinary course) that could have a Material
                                  Adverse Effect on NorAm.

                 (m)      Labor Matters.  Except as set forth in the NorAm SEC
Documents:

                          (i)     neither NorAm nor any of its Subsidiaries is
                 a party to any collective bargaining agreement or other
                 current labor agreement with any labor union or organization,
                 and there is no current union representation question
                 involving employees of NorAm or any of its Subsidiaries, nor
                 does NorAm or any of its Subsidiaries know of any activity or
                 proceeding of any labor organization (or representative
                 thereof) or employee group (or representative thereof) to
                 organize any such employees;

                          (ii)    there is no unfair labor practice charge or
                 grievance arising out of a collective bargaining agreement or
                 other grievance procedure against NorAm or any of its
                 Subsidiaries pending, or, to the knowledge or NorAm or any of
                 its Subsidiaries, threatened, that has, or could have, a
                 Material Adverse Effect on NorAm;

                          (iii)   there is no complaint, lawsuit or proceeding
                 in any forum by or on behalf of any present or former
                 employee, any applicant for employment or any classes of the
                 foregoing alleging breach of any express or implied contract
                 of employment, any law or regulation governing employment or
                 the termination thereof



                                     -30-

<PAGE>   41

                 or other discriminatory, wrongful or tortious conduct in
                 connection with the employment relationship against NorAm or
                 any of its Subsidiaries pending, or, to the knowledge of NorAm
                 or any of its Subsidiaries, threatened, that has, or could
                 have, a Material Adverse Effect on NorAm;

                          (iv)    there is no strike, dispute, slowdown, work
                 stoppage or lockout pending, or, to the knowledge of NorAm or
                 any of its Subsidiaries, threatened, against or involving
                 NorAm or any of its Subsidiaries that has, or could have, a
                 Material Adverse Effect on NorAm;

                          (v)     NorAm and each of its Subsidiaries are in
                 compliance with all applicable laws respecting employment and
                 employment practices, terms and conditions of employment,
                 wages, hours of work and occupational safety and health,
                 except for non-compliance that does not have, and could not
                 have, a Material Adverse Effect on NorAm; and

                          (vi)    there is no proceeding, claim, suit, action
                 or governmental investigation pending or, to the knowledge of
                 NorAm or any of its Subsidiaries, threatened, in respect to
                 which any current or former director, officer, employee or
                 agent of NorAm or any of its Subsidiaries is or may be
                 entitled to claim indemnification from NorAm or any of its
                 Subsidiaries pursuant to their respective charters or bylaws,
                 as provided in any indemnification agreement to which NorAm or
                 any Subsidiary of NorAm is a party or pursuant to applicable
                 law that has, or could have, a Material Adverse Effect on
                 NorAm.

                 (n)      Intangible Property.  NorAm and its Subsidiaries
         possess or have adequate rights to use all material trademarks, trade
         names, patents, service marks, brand marks, brand names, computer
         programs, databases, industrial designs and copyrights necessary for
         the operation of the businesses of each of NorAm and its Subsidiaries
         (collectively, the "NorAm Intangible Property"), except where the
         failure to possess or have adequate rights to use such properties
         would not reasonably be expected to have a Material Adverse Effect on
         NorAm.  All of the NorAm Intangible Property is owned by NorAm or its
         Subsidiaries free and clear of any and all liens, claims or
         encumbrances, except those that are not reasonably likely to have a
         Material Adverse Effect on NorAm, and neither NorAm nor any such
         Subsidiary has forfeited or otherwise relinquished any NorAm
         Intangible Property which forfeiture would result in a Material
         Adverse Effect.  To the knowledge of NorAm, the use of the NorAm
         Intangible Property by NorAm or its Subsidiaries does not, in any
         material respect, conflict with, infringe upon, violate or interfere
         with or constitute an appropriation of any right, title, interest or
         goodwill, including, without limitation, any intellectual property
         right, trademark, trade name, patent, service mark, brand mark, brand
         name, computer program, database, industrial design, copyright or any
         pending application therefor of any other person and there have been
         no claims made and neither NorAm nor any of its Subsidiaries has
         received any notice of any claim or otherwise knows that any of the
         NorAm Intangible Property is invalid or conflicts with the asserted
         rights of any other person or has not been used or 



                                     -31-

<PAGE>   42

         enforced or has been failed to be used or enforced in a manner that
         would result in the abandonment, cancellation or unenforceability of
         any of the NorAm Intangible Property, except for any such conflict,
         infringement, violation, interference, claim, invalidity, abandonment,
         cancellation or unenforceability that would not reasonably be expected
         to have a Material Adverse Effect on NorAm.

                 (o)      Environmental Matters.

                          (i)     For purposes of this Agreement:

                          (A)     "Environmental Claims" means, with
                                  respect to any person, (x) any and all
                                  administrative, regulatory or judicial
                                  actions, suits, demands, demand letters,
                                  directives, claims, liens, investigations,
                                  proceedings or notices of non-compliance or
                                  violation in writing by or from any person or
                                  entity (including any Governmental Entity), or
                                  (y) any oral information provided by a
                                  Governmental Entity that written action of
                                  the type described in the foregoing clause is
                                  in process, which (in case of either (x) or
                                  (y)) alleges potential liability (including,
                                  without limitation, potential liability for
                                  enforcement, investigatory costs, cleanup
                                  costs, governmental response costs, removal
                                  costs, remedial costs, natural resources
                                  damages, property damages, personal injuries
                                  or penalties) arising out of, based on or
                                  resulting from (1) the presence, or Release
                                  (as hereinafter defined) or threatened Release
                                  into the environment, of any Hazardous
                                  Materials (as hereinafter defined) at any
                                  location, whether or not owned, operated,
                                  leased or managed by NorAm or any of its
                                  Subsidiaries (for purposes of Section 3.1(o))
                                  or by HII or any of its Subsidiaries (for
                                  purposes of Section 3.2(o)), (2) circumstances
                                  forming the basis of any violation, or alleged
                                  violation, of any Environmental Law (as
                                  hereinafter defined) or (3) any and all claims
                                  by any third party seeking damages,
                                  contribution, indemnification, cost recovery,
                                  compensation or injunctive relief resulting
                                  from the presence or Release of any Hazardous
                                  Materials.

                          (B)     "Environmental Laws" means all federal, state
                                  and local laws, rules, regulations and
                                  guidances relating to pollution or the
                                  protection of human health or the environment
                                  (including, without limitation, ambient air,
                                  surface water, groundwater, land surface or
                                  subsurface strata), including, without
                                  limitation, laws and regulations relating to
                                  Releases or threatened Releases of Hazardous
                                  Materials or otherwise relating to the
                                  manufacture, processing, distribution, use,
                                  treatment, storage, disposal, transport or
                                  handling of Hazardous Materials.



                                     -32-

<PAGE>   43

                          (C)     "Hazardous Materials" means (x) any petroleum
                                  or petroleum products, radioactive materials,
                                  asbestos in any form that is or could become
                                  friable, urea formaldehyde foam insulation
                                  and transformers or other equipment that
                                  contain dielectric fluid containing
                                  polychlorinated biphenyls, (y) any chemicals,
                                  materials or substances which are now defined
                                  as or included in the definition of
                                  "hazardous substances," "hazardous wastes,"
                                  "hazardous materials," "extremely hazardous
                                  wastes," "restricted hazardous wastes,"
                                  "toxic substances" or "toxic pollutants," or
                                  words of similar import, under any
                                  Environmental Law and (z) any other chemical,
                                  material, substance or waste, exposure to
                                  which is now prohibited, limited or regulated
                                  under any Environmental Law in a jurisdiction
                                  in which NorAm or any of its Subsidiaries
                                  operates (for purposes of Section 3.1(o)) or
                                  in which HII or any of its Subsidiaries
                                  operates (for purposes of Section 3.2(o)).

                          (D)     "Release" means any release, spill, emission,
                                  leaking, injection, deposit, disposal,
                                  discharge, dispersal, leaching or migration
                                  into the atmosphere, soil, subsurface,
                                  surface water, groundwater or property.

                          (ii)    Compliance.

                          (A)     Except as set forth in the NorAm SEC
                                  Documents, NorAm and each of its Subsidiaries
                                  is in compliance with all applicable
                                  Environmental Laws, except where the failure
                                  to be so in compliance would not be
                                  reasonably likely to have a Material Adverse
                                  Effect on NorAm.

                          (B)     Except as set forth in the NorAm SEC
                                  Documents, neither NorAm nor any of its
                                  Subsidiaries has received any written
                                  communication from any person or Governmental
                                  Entity that alleges that NorAm or any of its
                                  Subsidiaries is not in compliance with
                                  applicable Environmental Laws, except where
                                  the failure to be so in compliance would not
                                  be reasonably likely to have a Material
                                  Adverse Effect on NorAm.

                          (iii)   Environmental Permits.  Except as set forth
                 in the NorAm SEC Documents, NorAm and each of its Subsidiaries
                 has obtained or applied for all environmental, health and
                 safety permits and authorizations (collectively,
                 "Environmental Permits") necessary for the construction of
                 their facilities and the conduct of their operations, and all
                 such permits are in good standing or, where applicable, a
                 renewal application has been timely filed, is pending and
                 agency approval is expected to be obtained, and NorAm and its
                 Subsidiaries are in compliance with all terms and conditions
                 of all such Environmental Permits and are not required to make
                 any expenditure in order to obtain or renew any Environmental



                                     -33-

<PAGE>   44

                 Permits, except where the failure to obtain or be in
                 compliance with such Environmental Permits and the requirement
                 to make such expenditures would not be reasonably likely to
                 have a Material Adverse Effect on NorAm.

                          (iv)    Environmental Claims.  Except as set forth in
                 the NorAm SEC Documents, there is no Environmental Claim
                 pending or, to the knowledge of NorAm and its Subsidiaries,
                 threatened

                          (A)     against NorAm or any of its Subsidiaries,

                          (B)     against any person or entity whose liability
                                  for any Environmental Claim NorAm or any of
                                  its Subsidiaries has retained or assumed,
                                  either contractually or by operation of law,
                                  or

                          (C)     against any real or personal property or
                                  operations that NorAm or any of its
                                  Subsidiaries owns, leases or manages, in
                                  whole or in part,

                 that, if adversely determined, would be reasonably likely to
                 have a Material Adverse Effect on NorAm.

                          (v)     Releases.  Except as set forth in the NorAm
                 SEC Documents, and except for Releases of Hazardous Materials
                 the liability for which would not be reasonably likely to have
                 a Material Adverse Effect on NorAm, NorAm has no knowledge of
                 any Release of any Hazardous Materials that has occurred on
                 any of the properties owned, leased or occupied by NorAm or
                 any Subsidiary of NorAm or any predecessor of NorAm or any
                 Subsidiary of NorAm which requires investigation, assessment,
                 monitoring, remediation or cleanup under Environmental Laws.

                          (vi)    Disclosure.  NorAm has disclosed to HII all
                 material facts that NorAm reasonably believes form the basis
                 of a Material Adverse Effect on NorAm arising from the cost of
                 pollution control equipment currently required or known to be
                 required in the future, current remediation costs or
                 remediation costs known to be required in the future, or any
                 other environmental matter affecting NorAm or its Subsidiaries
                 that would have a Material Adverse Effect on NorAm.

                 (p)      Insurance.  NorAm has delivered to HII an insurance
         schedule of NorAm's and each of its Subsidiaries' directors' and
         officers' liability insurance, primary and excess casualty insurance
         policies, providing coverage for bodily injury and property damage to
         third parties, including products liability and completed operations
         coverage, and worker's compensation, in effect as of the date hereof.
         NorAm maintains insurance coverage as is customary for the business of
         NorAm and each of its Subsidiaries (taking into account the cost and
         availability of such insurance), and the transactions contemplated
         hereby will not materially adversely affect such coverage.




                                     -34-

<PAGE>   45

                 (q)      Contracts.  Neither NorAm nor any of its Subsidiaries
         is a party to (i) any agreement under which it provides natural gas
         transportation, gathering, distribution or processing services which
         provide revenues (excluding gas costs) in excess of $5,000,000 per
         year and may be terminated by the other party within 5 years of the
         date hereof; (ii) any gas or power purchase contract which requires
         NorAm or any of its Subsidiaries to take and/or pay for minimum
         contract volumes at prices which exceed, or are expected to exceed,
         market prices and, at minimum take and/or pay levels, in the aggregate
         would require payment of a premium of $2,000,000 over the market price
         in any of the next 5 years; (iii) any gas purchase contract which
         requires NorAm or any of its Subsidiaries to take and/or pay for
         minimum contract volumes at prices which exceed, or are expected to
         exceed, market prices and contain clauses permitting the seller to
         commit additional properties or reserves to the contract; (iv) any
         agreement relating to prior take or pay payments or to buy-out or
         buy-down gas purchase contract obligations which require NorAm or any
         of its Subsidiaries to reimburse royalty or severance tax which, in
         the aggregate, could require NorAm or any of its Subsidiaries to make
         future payments exceeding $2,000,000 per year; (v) any gas sales
         contract which provides per year more than 5% of NorAm's or 10% of any
         of its Subsidiaries' revenues and which may be terminated by the
         purchaser within 5 years of the date hereof; (vi) any gas or power
         supply, marketing, transportation or storage contract which provides
         revenues in excess of $10,000,000 per month and has a term greater
         than one year; or (vii) any fixed-price gas or power supply or
         marketing contract (other than (A) gas contracts involving a volume
         less than 1,000 Mcf per day or (B) gas purchase contracts with a price
         less than $2.00 per Mcf), or any swap, hedging or derivative agreement
         or instrument, which has a term greater than one year.  The contract
         summaries which NorAm has provided to HII prior to the date hereof are
         accurate and do not omit to include any material terms necessary to
         make the summary thereof not misleading in all material respects.  All
         gas or power contracts which require NorAm or any of its Subsidiaries
         to take and/or pay for minimum contract volumes at prices which
         exceed, or are expected to exceed, market prices do not, at minimum
         take and/or pay levels, require in the aggregate payment of premiums
         of more than $10,000,000 per year over the market price in any of the
         next 5 years.

                 (r)      Regulatory Proceedings.  Except as set forth in the
         NorAm SEC Documents, neither NorAm nor any of its Subsidiaries all or
         part of whose rates or services are regulated by a Governmental Entity
         has rates which have been or are being collected subject to refund,
         pending final resolution of any proceeding pending before a
         Governmental Entity or on appeal to the courts or is a party to any
         proceeding before the Governmental Entity or on appeal from orders of
         the Governmental Entity which could result in orders having a Material
         Adverse Effect on NorAm.

                 (s)      Regulation as a Utility.

                          (i)     Neither NorAm nor any of its Subsidiaries is
                 a "holding company," a "subsidiary company" or an "affiliate"
                 of any public utility company within the meaning of Section
                 2(a)(7), 2(a)(8) or 2(a)(11) of the Public Utility Holding



                                     -35-

<PAGE>   46

                 Company Act of 1935, as amended (the "1935 Act"),
                 respectively, and none of the Subsidiaries of NorAm is a
                 "public utility company" within the meaning of Section 2(a)(5)
                 of the 1935 Act.

                          (ii)    NorAm is regulated as a public utility in the
                 States of Texas, Arkansas, Minnesota, Louisiana, Oklahoma and
                 Mississippi, and in no other state.  Neither NorAm nor any
                 "subsidiary company" or "affiliate" (as each such term is
                 defined in the 1935 Act) of NorAm is subject to regulation as
                 a public utility or public service company (or similar
                 designation) by any other state in the United States or any
                 foreign country.

                 (t)      Opinion of Financial Advisor.  The Board of Directors
         of NorAm has received the opinion of Merrill Lynch, Pierce, Fenner &
         Smith Incorporated ("Merrill Lynch") to the effect that, as of the
         date on which the Board of Directors of NorAm approved this Agreement,
         the Merger Consideration to be received by the holders of NorAm Common
         Stock pursuant to this Agreement is fair from a financial point of
         view to such holders.

                 (u)      Vote Required.  The affirmative vote of the holders
         of a majority of the outstanding shares of NorAm Common Stock is the
         only vote of the holders of any class or series of capital stock of
         NorAm necessary to approve this Agreement, the NorAm Merger and the
         other transactions contemplated hereby.

                 (v)      Beneficial Ownership of HII Common Stock.  As of the
         date hereof, assuming the accuracy of the representation set forth in
         Section 3.2(b), neither NorAm nor its Subsidiaries "beneficially owns"
         (as defined in Rule 13d-3 under the Exchange Act) any outstanding
         shares of HII Common Stock.

                 (w)      Brokers.  Except for the fees and expenses payable to
         Merrill Lynch, which fees are reflected in its agreement with NorAm (a
         copy of which has been delivered to HII), no broker, investment banker
         or other person is entitled to any broker's, finder's or other similar
         fee or commission in connection with the transactions contemplated by
         this Agreement based upon arrangements made by or on behalf of NorAm.

                 (x)      Article Fifth of NorAm Restated Certificate of
         Incorporation and Section 203 of the DGCL Not Applicable.  Neither the
         provisions of Article Fifth of NorAm's Restated Certificate of
         Incorporation nor the provisions of Section 203 of the DGCL will,
         prior to the consummation of this Agreement, assuming the accuracy of
         the representation contained in Section 3.2(s), apply to this
         Agreement, the NorAm Merger or the other transactions contemplated
         hereby.

                 (y)      Change in Control Provisions.  The Board of Directors
         of NorAm has taken all actions necessary to render inapplicable to the
         Mergers (and the Alternative Merger and the Second Alternative
         Merger) and the other transactions contemplated by this Agreement 



                                     -36-

<PAGE>   47
         the repurchase rights afforded to holders of NorAm's 10% Debentures due
         2019 (the "NorAm 10% Debentures") or to the holders of or trustees
         under indentures relating to any other indebtedness of NorAm or any of
         its Subsidiaries in the event of a "change in control" as defined in   
         the indenture governing the NorAm 10% Debentures or similar provisions
         contained in such other indentures or in any other debt agreements of
         NorAm or any of its Subsidiaries, as the case may be.

                 3.2      Representations and Warranties of HL&P and HII.  HL&P
and HII, jointly and severally, represent and warrant to NorAm as follows,
except as set forth in the disclosure schedule dated as of the date hereof and
signed by an authorized officer of each of HL&P and HII and delivered to NorAm
by HL&P and HII on or prior to the date hereof (the "HII Disclosure Schedule"),
each of which exceptions shall specifically identify the relevant Section
hereof to which it relates:

                 (a)      Organization, Standing and Power.  Each of HL&P and
         HII is a corporation duly organized, validly existing and in good
         standing under the laws of the State of Texas, has all requisite power
         and authority to own, lease and operate its properties and to carry on
         its business as now being conducted, and is duly qualified and in good
         standing to do business in each jurisdiction in which the business it
         is conducting, or the operation, ownership or leasing of its
         properties, makes such qualification necessary, other than in such
         jurisdictions where the failure so to qualify would not have a
         Material Adverse Effect on HII.  HL&P and HII have each heretofore
         delivered to NorAm complete and correct copies of their respective
         Restated Articles of Incorporation and Bylaws.

                 (b)      Capital Structure.

                          (i)     As of the date hereof, the authorized capital
                 stock of HL&P consists of 1,000 shares of HL&P Class A Common
                 Stock, 100 shares of HL&P Class B Common Stock and 10,000,000
                 shares of Cumulative Preferred Stock, no par value, of HL&P
                 (the "HL&P Preferred Stock").  At the close of business on
                 July 31, 1996:  (A) 1,000 shares of HL&P Class A Common Stock
                 were issued and outstanding; (B) 100 shares of HL&P Class B
                 Common Stock were issued and outstanding; (C) 3,804,397 shares
                 of HL&P Preferred Stock were issued and outstanding; and (D)
                 no Voting Debt of HL&P was outstanding.  All outstanding
                 shares of HL&P capital stock are, and the shares of HL&P
                 Common Stock when issued in accordance with this Agreement,
                 and upon exercise of the HII Stock Options and the NorAm Stock
                 Options to be assumed by HL&P pursuant to this Agreement, will
                 be, validly issued, fully paid and nonassessable and not
                 subject to preemptive rights.  HL&P has no Subsidiaries.
                 Except as set forth above, there are outstanding:  (A) no
                 shares of capital stock, Voting Debt or other voting
                 securities of HL&P; (B) no securities of HL&P convertible into
                 or exchangeable for shares of capital stock, Voting Debt or
                 other voting securities of HL&P; and (C) no options, warrants,
                 calls, rights (including preemptive rights), commitments or
                 agreements to which HL&P is a party or by which it is bound in
                 any case obligating HL&P to issue, deliver, sell, purchase,



                                     -37-

<PAGE>   48

                 redeem or acquire, or cause to be issued, delivered, sold,
                 purchased, redeemed or acquired, additional shares of capital
                 stock, Voting Debt or other voting securities of HL&P or
                 obligating HL&P to grant, extend or enter into any such
                 option, warrant, call, right, commitment or agreement.  There
                 are not as of the date hereof and there will not be at the
                 Effective Time any stockholder agreements, voting trusts or
                 other agreements or understandings to which HL&P is a party or
                 by which it is bound relating to the voting of any shares of
                 the capital stock of HL&P.

                          (ii)    As of the date hereof, the authorized capital
                 stock of HII consists of 400,000,000 shares of HII Common
                 Stock and 10,000,000 shares of Cumulative Preferred Stock, no
                 par value, of HII (the "HII Preferred Stock").  At the close
                 of business on July 31, 1996, (A) 261,352,547 shares of HII
                 Common Stock were issued and outstanding and not more than
                 46,098,546 shares of HII Common Stock were reserved for
                 issuance pursuant to HII's:

                 Long-Term Incentive Compensation Plan  . . .    630,375 
                 1994 Long-Term Incentive Compensation Plan .  3,999,362 
                 Stock Benefit Plan . . . . . . . . . . . . .    189,804
                 Stock Plan for Outside Directors   . . . . .     94,500 
                 Houston Industries Energy, Inc. Long-Term 
                   Project Incentive Compensation Plan  . . .    470,650
                 Savings Plan . . . . . . . . . . . . . . . . 33,162,041
                 Investor's Choice Plan . . . . . . . . . . .  7,551,814

                 (collectively, the "HII Stock Plans"); (B) 1,395,900 shares of
                 HII Common Stock were held by HII in its treasury or by its
                 wholly owned Subsidiaries; (C) no shares of HII Preferred
                 Stock are issued and outstanding and 2,000,000 shares of HII
                 Series A Preference Stock were reserved for issuance in
                 connection with the HII Stock Purchase Rights; and (D) no
                 Voting Debt of HII was outstanding.  All outstanding shares of
                 HII capital stock are validly issued, fully paid and
                 nonassessable and not subject to preemptive rights.  All
                 outstanding shares of capital stock of the Subsidiaries of HII
                 are owned by HII or a direct or indirect wholly owned
                 Subsidiary of HII, free and clear of all liens, charges,
                 encumbrances, claims and options of any nature.  Except as set
                 forth above and except for changes since July 31, 1996
                 resulting from the exercise of employee stock options granted
                 pursuant to, or from issuances or purchases under, the HII
                 Stock Plans, or as contemplated by this Agreement, there are
                 outstanding:  (A) no shares of capital stock, Voting Debt or
                 other voting securities of HII; (B) no securities of HII or
                 any Subsidiary of HII convertible into or exchangeable for
                 shares of capital stock, Voting Debt or other voting
                 securities of HII or any Subsidiary of HII; and (C) no
                 options, warrants, calls, rights (including preemptive
                 rights), commitments or agreements to which HII or any
                 Subsidiary of HII is a party or by which it is bound in any
                 case obligating HII or any Subsidiary of HII to issue,
                 deliver, sell, purchase, redeem or acquire, or cause to be
                 issued, delivered, sold, purchased, redeemed or acquired,
                 additional shares of 



                                     -38-

<PAGE>   49
                 capital stock or any Voting Debt or other voting securities of
                 HII or of any Subsidiary of HII or obligating HII or any
                 Subsidiary of HII to grant, extend or enter into any such
                 option, warrant, call, right, commitment or agreement. 
                 There are not as of the date hereof and there will not be at
                 the HII/HL&P Merger Effective Time any stockholder agreements,
                 voting trusts or other agreements or understandings to which
                 HII is a party or by which it is bound relating to the voting
                 of any shares of the capital stock of HII.

                 (c)      Authority; No Violations; Consents and Approvals.

                          (i)     Each of HL&P and HII has all requisite
                 corporate power and authority to enter into this Agreement
                 and, subject, with respect to consummation of the Mergers, to
                 approval of this Agreement and the issuance of the HL&P Common
                 Stock pursuant to the Mergers (collectively, the "HII Vote
                 Matter") by the shareholders of HII in accordance with the
                 TBCA and the NYSE listing requirements, to consummate the
                 transactions contemplated hereby.  The execution and delivery
                 of this Agreement and the consummation of the transactions
                 contemplated hereby, including, but not limited to, the
                 issuance of the HL&P Common Stock pursuant to the Mergers,
                 have been duly authorized by all necessary corporate action on
                 the part of HL&P and HII, subject, with respect to
                 consummation of the Mergers, to approval of the HII Vote
                 Matter by the shareholders of HII in accordance with the TBCA
                 and NYSE listing requirements.  This Agreement has been duly
                 executed and delivered by HL&P and HII and, subject, with
                 respect to consummation of the Mergers, to approval of the HII
                 Vote Matter by the shareholders of HII in accordance with the
                 TBCA and NYSE listing requirements, and assuming this
                 Agreement constitutes the valid and binding obligation of
                 NorAm, constitutes a valid and binding obligation of HL&P and
                 HII enforceable in accordance with its terms, subject, as to
                 enforceability, to bankruptcy, insolvency, reorganization and
                 other laws of general applicability relating to or affecting
                 creditors' rights and to general principles of equity.

                          (ii)    The execution and delivery of this Agreement
                 does not, and the consummation of the transactions
                 contemplated hereby and compliance with the provisions hereof
                 will not, conflict with, or result in any violation of, or
                 default (with or without notice or lapse of time, or both)
                 under, or give rise to a right of termination, cancellation or
                 acceleration of any obligation or to the loss of a material
                 benefit under, or result in the creation of any lien, security
                 interest, charge or encumbrance upon any of the properties or
                 assets of HII or any of its Subsidiaries under, any provision
                 of (A) the Restated Articles of Incorporation or Bylaws of HII
                 or any provision of the comparable charter or organizational
                 documents of any of its Subsidiaries, (B) subject to obtaining
                 the third-party consents set forth in Section 3.2(c)(ii) of the
                 HII Disclosure Schedule (the "HII Required Consents"), any loan
                 or credit agreement, note, bond, mortgage, indenture, lease or
                 other agreement, instrument, permit, concession, franchise or
                 license applicable to HII or any of its 



                                     -39-
<PAGE>   50

                 Subsidiaries or (C) assuming the consents, approvals,
                 authorizations or permits and filings or notifications referred
                 to in Section 3.2(c)(iii) are duly and timely obtained or made
                 and the approval of the HII Vote Matter by the shareholders
                 of HII has been obtained, any judgment, order, decree, statute,
                 law, ordinance, rule or regulation applicable to HII or any of
                 its Subsidiaries or any of their respective properties or
                 assets, other than, in the case of clause (B) or (C), any such
                 conflicts, violations, defaults, rights, liens, security
                 interests, charges or encumbrances that, individually or in the
                 aggregate, would not have a Material Adverse Effect on HII,
                 materially impair the ability of HII or HL&P to perform its
                 obligations hereunder or thereunder or prevent the consummation
                 of any of the transactions contemplated hereby or thereby.

                          (iii)   No consent, approval, order or authorization
                 of, or registration, declaration or filing with, or permit
                 from any Governmental Entity is required by or with respect to
                 HII or any of its Subsidiaries in connection with the
                 execution and delivery of this Agreement by HII or HL&P, or
                 the consummation by HII or HL&P of the transactions
                 contemplated hereby, as to which the failure to obtain or make
                 would have a Material Adverse Effect on HII, except for: (A)
                 the filing of a premerger notification report by HII under the
                 HSR Act and the expiration or termination of the applicable
                 waiting period with respect thereto; (B) the filing with the
                 SEC of the Joint Proxy Statement, the S-4, such reports under
                 Section 13(a) of the Exchange Act and such other compliance
                 with the Securities Act and the Exchange Act and the rules and
                 regulations thereunder as may be required in connection with
                 this Agreement and the transactions contemplated hereby, and
                 the obtaining from the SEC of such orders as may be so
                 required; (C) the filing with the SEC of a Form U-1 requesting
                 an order from the SEC granting the HII/HL&P Merger Surviving
                 Corporation an exemption under section 3(a)(2) of the 1935 Act
                 and/or a Form U-3A-2 under the 1935 Act (unless the
                 Alternative Merger or the Second Alternative Merger, as the
                 case may be, is effected in lieu of the Mergers); (D) the
                 filing of the HII/HL&P Merger Articles of Merger with the
                 Secretary of State of the State of Texas and the NorAm Merger
                 Certificate of Merger with the Secretary of State of the State
                 of Delaware; (E) filings with, and approval of, the NYSE; (F)
                 such filings and approvals as may be required by any
                 applicable state securities, "blue sky" or takeover laws or
                 environmental laws; and (G) such filings and approvals as may
                 be required by any foreign premerger notification, securities,
                 corporate or other law, rule or regulation.

                 (d)      SEC Documents.  Each of HL&P and HII has made
         available to NorAm a true and complete copy of each report, schedule,
         registration statement and definitive proxy statement filed by HL&P
         and HII, as the case may be, with the SEC since January 1, 1994 and
         prior to the date of this Agreement (the "HL&P SEC Documents" and the
         "HII SEC Documents," respectively) which are all the documents (other
         than preliminary material) that HL&P or HII have been required to file
         with the SEC since such date.  As of their respective dates, the HL&P
         SEC Documents and the HII SEC Documents complied in all material



                                     -40-

<PAGE>   51

         respects with the requirements of the Securities Act or the Exchange
         Act, as the case may be, and the rules and regulations of the SEC
         thereunder applicable to such HL&P SEC Documents and HII SEC Documents,
         and none of the HL&P SEC Documents or the HII SEC Documents contained
         any untrue statement of a material fact or omitted to state a material
         fact required to be stated therein or necessary to make the
         statements therein, in light of the circumstances under which they were
         made, not misleading.  The financial statements of HL&P contained in
         the HL&P SEC Documents and the financial statements of HII included in
         the HII SEC Documents complied as to form in all material respects with
         the published rules and regulations of the SEC with respect thereto,
         were prepared in accordance with GAAP applied on a consistent basis
         during the periods involved (except as may be indicated in the notes
         thereto or, in the case of the unaudited statements, as permitted by
         Rule 10-01 of Regulation S-X of the SEC) and fairly present in
         accordance with applicable requirements of GAAP (subject, in the case
         of the unaudited statements, to normal, recurring adjustments, none of
         which will be material) (x) the financial position of HL&P as of their
         respective dates and the results of operations and the cash flows of
         HL&P for the periods presented therein or (y) the consolidated
         financial position of HII and its consolidated Subsidiaries as of their
         respective dates and the consolidated results of operations and the
         consolidated cash flows of HII and its consolidated Subsidiaries for
         the periods presented therein, respectively.

                 (e)      Information Supplied.  None of the information
         supplied or to be supplied by HL&P or HII for inclusion or
         incorporation by reference in the S-4 will, at the time the S-4
         becomes effective under the Securities Act or at the Effective Time,
         contain any untrue statement of a material fact or omit to state any
         material fact required to be stated therein or necessary to make the
         statements therein not misleading, and none of the information
         supplied or to be supplied by HL&P or HII and included or incorporated
         by reference in the Joint Proxy Statement will, at the date mailed to
         the shareholders of HII and the stockholders of NorAm or at the time
         of the meetings of such shareholders and stockholders to be held in
         connection with the Mergers or at the relevant Effective Time, contain
         any untrue statement of a material fact or omit to state any material
         fact required to be stated therein or necessary in order to make the
         statements therein, in light of the circumstances under which they are
         made, not misleading.  If at any time prior to the relevant Effective
         Time any event with respect to HII or any of its Subsidiaries, or with
         respect to other information supplied by HL&P or HII for inclusion in
         the Joint Proxy Statement or S-4, shall occur which is required to be
         described in an amendment of, or a supplement to, the Joint Proxy
         Statement or the S-4, such event shall be so described, and such
         amendment or supplement shall be promptly filed with the SEC.  The
         Joint Proxy Statement, insofar as it relates to HII or the
         Subsidiaries of HII or other information supplied by HL&P or HII for
         inclusion therein, will comply as to form in all material respects
         with the provisions of the Exchange Act and the rules and regulations
         thereunder.

                 (f)      Absence of Certain Changes or Events.  Except as
         disclosed in, or reflected in the financial statements included in,
         the HL&P SEC Documents or the HII SEC Documents, or except as
         contemplated by this Agreement, since December 31, 1995, there 



                                     -41-

<PAGE>   52

         has not been: (i) any declaration, setting aside or payment of any
         dividend or other distribution (whether in cash, stock or property)
         with respect to (x) any shares of HII's capital stock, except for
         regular quarterly cash dividends of $.375 per share on HII Common Stock
         (or a pro rata amount for any dividend less than a full quarter) with
         usual record and payment dates for such dividends or (y) any shares of
         HL&P Preferred Stock, except for regular cash dividends pursuant to the
         terms of such series of HL&P Preferred Stock (or a pro rata amount for
         any dividend less than a full dividend payment period) with usual
         record and payment dates for such dividends or (z) any shares of HL&P
         Class A Common Stock and HL&P Class B Common Stock; (ii) any amendment
         of any material term of any outstanding equity security of HII or any
         Subsidiary of HII; (iii) any repurchase, redemption or other
         acquisition by HII or any Subsidiary of HII of any outstanding shares
         of capital stock or other equity securities of, or other ownership
         interests in, HII or any Subsidiary of HII, except pursuant to HII's
         previously publicly-announced HII Common Stock repurchase program (the
         "HII Common Stock Repurchase Program") or as contemplated by the HII
         Stock Plans; (iv) any material change in any method of accounting or
         accounting practice by HII or any Significant Subsidiary of HII; or
         (v) any other transaction, commitment, dispute or other event or
         condition (financial or otherwise) of any character (whether or not in
         the ordinary course of business) that could have a Material Adverse
         Effect on HII, except for general economic changes and changes that may
         affect the industries of HII or any of its Subsidiaries generally.

                 (g)      No Undisclosed Material Liabilities.  As of the date
         hereof, there are no liabilities of HII or any of its Subsidiaries of
         any kind whatsoever, whether accrued, contingent, absolute,
         determined, determinable or otherwise, that are reasonably likely to
         have a Material Adverse Effect on HII, other than: (i) liabilities
         adequately provided for on the balance sheet of HII dated as of March
         31, 1996 (including the notes thereto) contained in HII's Quarterly
         Report on Form 10-Q for the quarter ended March 31, 1996; and (ii)
         liabilities under this Agreement.

                 (h)      No Default.  Neither HII nor any of its Subsidiaries
         is in default or violation (and no event has occurred which, with
         notice or the lapse of time or both, would constitute a default or
         violation) of any term, condition or provision of (i) their respective
         charter and bylaws, (ii) any note, bond, mortgage, indenture, license,
         agreement or other instrument or obligation to which HII or any of its
         Subsidiaries is now a party or by which HII or any of its Subsidiaries
         or any of their respective properties or assets may be bound (except
         for the requirement under certain of such instruments to file
         supplemental indentures as a result of the transactions contemplated
         hereby) or (iii) any order, writ, injunction, decree, statute, rule or
         regulation applicable to HII or any of its Subsidiaries, except in the
         case of (ii) and (iii) for defaults or violations which in the
         aggregate would not have a Material Adverse Effect on HII.

                 (i)      Compliance with Applicable Laws.  HII and its
         Subsidiaries hold all permits, licenses, variances, exemptions,
         orders, franchises and approvals of all Governmental Entities
         necessary for the lawful conduct of their respective businesses (the
         "HII Permits"), 



                                     -42-


<PAGE>   53

         except where the failure so to hold would not have a Material Adverse
         Effect on HII.  HII and its Subsidiaries are in compliance with
         the terms of the HII Permits, except where the failure so to comply
         would not have a Material Adverse Effect on HII.  Except as disclosed
         in the HL&P SEC Documents or the HII SEC Documents, the businesses of
         HII and its Subsidiaries are not being conducted in violation of any
         law, ordinance or regulation of any Governmental Entity, except for
         possible violations which would not have a Material Adverse Effect on
         HII.  As of the date of this Agreement, no investigation or review by
         any Governmental Entity with respect to HII or any of its Subsidiaries
         is pending or, to the best knowledge of HII, threatened, other than
         those the outcome of which would not have a Material Adverse Effect on
         HII.

                 (j)      Litigation.  Except as disclosed in the HL&P SEC
         Documents or the HII SEC Documents, there is no suit, action or
         proceeding pending, or, to the best knowledge of HII, threatened
         against or affecting HII or any Subsidiary of HII ("HII Litigation"),
         and HII and its Subsidiaries have no knowledge of any facts that are
         likely to give rise to any HII Litigation, that (in any case) is
         reasonably likely to have a Material Adverse Effect on HII, nor is
         there any judgment, decree, injunction, rule or order of any
         Governmental Entity or arbitrator outstanding against HII or any
         Subsidiary of HII ("HII Order") that is reasonably likely to have a
         Material Adverse Effect on HII or its or HL&P's ability to consummate
         the transactions contemplated by this Agreement.

                 (k)      Taxes.  Except as would not, individually or in the
         aggregate, have a Material Adverse Effect on HII:

                          (i)     Each of HII, each of its Subsidiaries and any
                 affiliated, combined or unitary group of which any such
                 corporation is or was a member has (A) timely filed all
                 federal income tax and all other material federal and all
                 material state, local and foreign Returns required to be filed
                 or sent by or with respect to it in respect of any Taxes, (B)
                 timely paid all Taxes that are due and payable (except for
                 audit adjustments not material in the aggregate or to the
                 extent that liability therefor is reserved for in HII's most
                 recent audited financial statements) for which HII or any of
                 its Subsidiaries may be liable, (C) established reserves that
                 are adequate for the payment of all Taxes not yet due and
                 payable with respect to the results of operations of HII and
                 its Subsidiaries through the date hereof and (D) to the
                 knowledge of HII or any Subsidiary of  HII, complied in all
                 material respects with all applicable laws, rules and
                 regulations relating to the payment and withholding of Taxes,
                 and has in all material respects timely withheld from employee
                 wages and paid over to the proper governmental authorities all
                 amounts required to be so withheld and paid over.

                          (ii)    Section 3.2(k)(ii) of the HII Disclosure
                 Schedule sets forth the last taxable period through which the
                 federal income tax Returns of HII and any of its Subsidiaries
                 have been examined by the IRS or otherwise closed.  Except to
                 the extent being contested in good faith, all deficiencies
                 asserted as a result of such 



                                     -43-

<PAGE>   54
 
                 examinations and any examination by any applicable state or
                 local taxing authority have been paid, fully settled or
                 adequately provided for in HII's most recent audited financial
                 statements.  Except as adequately provided for in the HL&P
                 SEC Documents or the HII SEC Documents, as the case may be, no
                 material federal, state or local income or franchise tax audits
                 or other administrative proceedings or court proceedings are
                 presently pending with regard to any federal, state or local
                 income or franchise Taxes for which HII or any of its
                 Subsidiaries would be liable, and no material deficiency for
                 any such income or franchise Taxes has been proposed, asserted
                 or assessed pursuant to such examination against HII or any of
                 its Subsidiaries by any federal, state or local taxing
                 authority with respect to any period.

                          (iii)   Neither HII nor any of its Subsidiaries has
                 executed or entered into (or prior to the close of business on
                 the Closing Date will execute or enter into) with the IRS or
                 any taxing authority (A) any agreement or other document
                 extending or having the effect of extending the period for
                 assessments or collection of any federal, state or local
                 income or franchise Taxes for which HII or any of its
                 Subsidiaries would be liable or (B) a closing agreement
                 pursuant to Section 7121 of the Code, or any predecessor
                 provision thereof or any similar provision of state or local
                 income tax law that relates to the assets or operations of HII
                 or any of its Subsidiaries.

                          (iv)    Neither HII nor any of its Subsidiaries has
                 made an election under Section 341(f) of the Code or agreed to
                 have Section 341(f)(2) of the Code apply to any disposition of
                 a subsection (f) asset (as such term is defined in Section
                 341(f)(4) of the Code) owned by HII or any of its
                 Subsidiaries.

                          (v)     Except as set forth in the HL&P SEC Documents
                 or the HII SEC Documents, as the case may be, neither HII nor
                 any of its Subsidiaries is a party to, is bound by or has any
                 obligation under any tax sharing agreement or similar
                 agreement or arrangement.

                 (l)      Employee Matters; ERISA.

                          (i)     For purposes of this Agreement, "HII Benefit
                 Plan" means:

                          (A)     each "employee benefit plan" within the
                                  meaning of Section 3(3) of ERISA that is or
                                  was maintained or contributed to at any time
                                  during the six calendar year period
                                  immediately preceding the date hereof by HII
                                  or any HII Affiliate and each similar plan,
                                  program, policy or arrangement maintained for
                                  non-employee directors or other non-employees
                                  who have provided services to HII or any HII
                                  Affiliate;

                          (B)     each plan, program, policy, payroll practice
                                  or arrangement not listed in (A) above that
                                  provides for bonuses, profit-sharing,
                                  incentive 



                                     -44-

<PAGE>   55

                                  compensation, deferred compensation,
                                  equity-based compensation (including stock
                                  options or other stock purchases, restricted
                                  stock, stock appreciation rights, performance
                                  units and dividend equivalents), holiday pay,
                                  vacation pay, sick pay, dependent care
                                  benefits, flexible benefits (including any
                                  cafeteria plan governed by Section 125 of the
                                  Code), paid or unpaid leave (including sick
                                  leave, parental leave, military leave and
                                  bereavement leave), tuition assistance,
                                  relocation or any similar type of benefits,
                                  that has been adopted or implemented by HII or
                                  any HII Affiliate (including any such plan,
                                  program, policy or arrangement that has been
                                  terminated before the date hereof, if HII or
                                  any HII Affiliate could have statutory or
                                  contractual liability with respect to the
                                  arrangement on or after the date hereof);

                          (C)     each employment contract, severance contract,
                                  parachute agreement, option agreement, stock
                                  appreciation right agreement, bonus or other
                                  incentive award agreement, deferred
                                  compensation agreement, supplemental benefit
                                  agreement, split dollar agreement or other
                                  personal service or benefit contract or
                                  arrangement with or covering a current or
                                  former officer, director, employee or
                                  independent contractor of HII or any HII
                                  Affiliate.

                          (ii)    For purposes of this Agreement, "HII Pension
                 Benefit Plan" means each "employee pension benefit plan"
                 (within the meanings of Section 3(2) of ERISA) subject to
                 Title IV of ERISA or the minimum funding requirements of
                 Section 302 of ERISA that is or was maintained or contributed
                 to by HII or any HII Affiliate at any time during the six
                 calendar year period immediately preceding the date hereof,
                 and "HII Affiliate" means any trade or business, whether or
                 not incorporated, that is under common control, or treated as
                 a single employer, with HII under Section 414(b),(c),(m) or
                 (o) of the Code.

                          (iii)   Contributions.  All material contributions
                 and other material payments required to have been made by HII
                 or any HII Affiliate under Section 412 of the Code or pursuant
                 to any HII Benefit Plan (or to any person pursuant to the
                 terms thereof) have been timely made or will be timely made in
                 accordance with Section 404(a)(6) of the Code and all such
                 amounts properly accrued through the date of this Agreement
                 have been reflected in the financial statements of HII
                 included in HII's Annual Report on Form 10-K for the fiscal
                 year ended December 31, 1995.

                          (iv)    Qualification; Compliance.

                          (A)     Each HII Benefit Plan that is intended to be
                                  "qualified" within the meaning of Section
                                  401(a) of the Code (1) to the knowledge of
                                  HII,


                                     -45-


<PAGE>   56
                                  currently meets all qualification 
                                  requirements under the Code both in form and
                                  in operation and (2) has received a favorable
                                  determination letter from the IRS on its
                                  qualification or application for such a
                                  determination has been made prior to the
                                  expiration of the applicable remedial
                                  amendment period and HII agrees to make
                                  such plan amendments as the IRS may require in
                                  order to issue a favorable determination
                                  letter.

                          (B)     To the knowledge of HII, HII and each HII
                                  Affiliate are in compliance with, and each
                                  HII Benefit Plan is and has been operated in
                                  compliance with, all applicable laws, rules
                                  and regulations governing such plan,
                                  including, without limitation, ERISA and the
                                  Code, except for violations that could not
                                  have a Material Adverse Effect on HII.  All
                                  amendments and actions required to bring each
                                  of the HII Benefit Plans into conformity with
                                  all of the applicable provisions of ERISA and
                                  the Code and other applicable legal
                                  requirements have been made or taken except
                                  to the extent that such amendments or actions
                                  are not required by law to be made or taken
                                  until a date after the Effective Time.

                          (C)     To the knowledge of HII, each HII Benefit
                                  Plan or related trust that is or was intended
                                  to satisfy the requirements of Section 125,
                                  401(k) or 501(c)(9) of the Code has met and
                                  continues to meet all material requirements
                                  under the applicable section of the Code.

                          (D)     To the knowledge of HII, no individual or
                                  entity has engaged in any transaction in
                                  connection with which HII or any HII
                                  Affiliate, or any HII Benefit Plan or any
                                  trust, trustee or administrator thereof,
                                  could be subject to liability pursuant to
                                  Section 409 or Section 502 of ERISA, or
                                  subject to an excise tax pursuant to Section
                                  4975 of the Code, which could in either case
                                  have a Material Adverse Effect on HII.

                          (E)     To the knowledge of HII:

                                  (1)      no HII Benefit Plan is subject to
                                           any ongoing audit, investigation or
                                           other administrative proceeding of
                                           the IRS, the Department of Labor or
                                           any other Governmental Entity or is
                                           scheduled to be subject to such an
                                           audit, investigation or proceeding;
                                           and

                                  (2)      no HII Benefit Plan is the subject
                                           of any pending application for
                                           administrative relief under any
                                           voluntary compliance program of any
                                           Governmental Entity (including,
                                           without 



                                     -46-

<PAGE>   57

                                           limitation, the IRS' Voluntary 
                                           Compliance Resolution Program or
                                           Walk-in Closing Agreement Program,
                                           or the Department of Labor's 
                                           Delinquent Filer Voluntary Compliance
                                           Program).

                          (v)     Liabilities.

                          (A)     Pension Benefit Plans.  With respect to the
                                  HII Pension Benefit Plans, individually and
                                  in the aggregate, no termination or partial
                                  termination of any HII Pension Benefit Plan
                                  or other event has occurred, and, to the
                                  knowledge of HII, there exists no condition
                                  or set of circumstances that could subject
                                  HII or any HII Affiliate to any liability
                                  arising under the Code, ERISA or any other
                                  applicable law (including, without
                                  limitation, any liability to or under any 
                                  such plan or to the PBGC, or under any
                                  indemnity agreement to which HII or any HII
                                  Affiliate is a party), which liability could 
                                  have a Material Adverse Effect on HII 
                                  (excluding liability for benefit claims and 
                                  funding obligations payable in the ordinary 
                                  course and liability for PBGC insurance 
                                  premiums payable in the ordinary course).

                          (B)     Insurance Policies.  With respect to each HII
                                  Benefit Plan that is funded wholly or
                                  partially through an insurance policy, there
                                  will be no liability of HII or any HII
                                  Affiliate, which could have a Material
                                  Adverse Effect on HII, in the nature of a
                                  retroactive rate adjustment, loss sharing
                                  arrangement or other actual or contingent
                                  liability under such policy and arising
                                  wholly or partially out of events occurring
                                  prior to the Effective Time.

                          (vi)    Welfare Plans.  (A) No HII Benefit Plan that
                 is a "welfare plan" (within the meaning of Section 3(1) of
                 ERISA) provides benefits for any retired or former employees
                 (other than as required pursuant to Section 601 of ERISA) and
                 (B) to the knowledge of HII, no circumstances exist that could
                 subject HII or any HII Affiliate to an excise tax under
                 Section 4976 of the Code.

                          (vii)   Funded Status of Plans.  (A) Each HII Pension
                 Benefit Plan has assets that, as of January 1, 1996, have a
                 fair market value equal to or exceeding the present value of
                 the accrued benefit obligations thereunder on a termination
                 basis, as of January 1, 1996, based on the actuarial methods,
                 tables and assumptions theretofore utilized by such plan's
                 actuary in preparing such plan's most recently prepared FAS 87
                 actuarial valuation report and provided by HII to NorAm, and
                 HII is not aware of any existing facts or circumstances that
                 would materially change the funded status of any HII Pension
                 Benefit Plan and (B) no HII Pension Benefit Plan has incurred
                 any "accumulated funding deficiency" (within the meaning of
                 Section 302 of ERISA or Section 412 of the Code).



                                     -47-


<PAGE>   58
      
                          (viii)  Multiemployer Plans.

                          (A)     No HII Benefit Plan is or was a
                                  "multiemployer plan" (within the meaning of
                                  Section 4001(a)(3) of ERISA), a multiple
                                  employer plan described in Section 413(c) of
                                  the Code or a "multiple employer welfare
                                  arrangement" (within the meaning of Section
                                  3(40) of ERISA); and none of HII or any HII
                                  Affiliate has been obligated to contribute
                                  to, or otherwise has or has had any liability
                                  with respect to, any multiemployer plan,
                                  multiple employer plan, or multiple employer
                                  welfare arrangement.

                          (B)     With respect to any HII Benefit Plan that is
                                  listed in Section 3.2(l)(viii)(A) of the HII
                                  Disclosure Schedule as a multiemployer plan,
                                  neither HII nor any HII Affiliate has made or
                                  incurred a "complete withdrawal" or a
                                  "partial withdrawal," as such terms are
                                  defined in Sections 4203 and 4205 of ERISA,
                                  therefrom at any time during the six calendar
                                  year period immediately preceding the date of
                                  this Agreement and the transactions
                                  contemplated by the Agreement will not, in
                                  and of themselves, give rise to such a
                                  "complete withdrawal" or "partial
                                  withdrawal."

                          (ix)    Modification or Termination of Plans.
                 Neither HII nor any HII Affiliate is subject to any legal,
                 contractual, equitable or other obligation (nor have they any
                 formal plan or commitment, whether legally binding or not) to
                 enter into any form of compensation or employment agreement or
                 to establish any employee benefit plan of any nature,
                 including (without limitation) any pension, profit sharing,
                 welfare, post-retirement welfare, stock option, stock or cash
                 award, non-qualified deferred compensation or executive
                 compensation plan, policy or practice or to modify or change
                 any existing HII Benefit Plan.  HII or one or more HII
                 Affiliates have the right to, in any manner, and without the
                 consent of any employee, beneficiary or dependent, employees'
                 organization or other person, terminate, modify or amend any
                 HII Benefit Plan (or their participation in any such HII
                 Benefit Plan) at any time sponsored, maintained or contributed
                 to by HII or any HII Affiliate, effective as of any date
                 before, on or after the Effective Time except to the extent
                 that any retroactive amendment would be prohibited by Section
                 204(g) of ERISA or would adversely affect a vested accrued
                 benefit or a previously granted award under any such plan not
                 subject to Section 204(g) of ERISA.

                          (x)     Reportable Events; Claims.

                          (A)     No Reportable Event has occurred with respect
                                  to any HII Pension Benefit Plan that could
                                  have a Material Adverse Effect on HII, and



                                     -48-


<PAGE>   59

                          (B)     no liability, claim, action or litigation
                                  exists, has been made, commenced or, to the
                                  knowledge of HII, threatened, by or against
                                  HII or any HII Affiliate with respect to any
                                  HII Benefit Plan (other than for benefits or
                                  PBGC premiums payable in the ordinary course)
                                  that could have a Material Adverse Effect on
                                  HII.

                 (m)      Labor Matters.  Except as set forth in the HII SEC
           Documents or the HL&P SEC Documents:

                          (i)     there is no unfair labor practice charge or
                 grievance arising out of a collective bargaining agreement or
                 other grievance procedure against HII or any of its
                 Subsidiaries pending, or, to the knowledge or HII or any of
                 its Subsidiaries, threatened, that has, or could have, a
                 Material Adverse Effect on HII;

                          (ii)    there is no complaint, lawsuit or proceeding
                 in any forum by or on behalf of any present or former
                 employee, any applicant for employment or any classes of the
                 foregoing alleging breach of any express or implied contract
                 of employment, any law or regulation governing employment or
                 the termination thereof or other discriminatory, wrongful or
                 tortious conduct in connection with the employment
                 relationship against HII or any of its Subsidiaries pending,
                 or, to the knowledge of HII or any of its Subsidiaries,
                 threatened, that has, or could have, a Material Adverse Effect
                 on HII;

                          (iii)   there is no strike, dispute, slowdown, work
                 stoppage or lockout pending, or, to the knowledge of HII or
                 any of its Subsidiaries, threatened, against or involving HII
                 or any of its Subsidiaries that has, or could have, a Material
                 Adverse Effect on HII;

                          (iv)    HII and each of its Subsidiaries are in
                 compliance with all applicable laws respecting employment and
                 employment practices, terms and conditions of employment,
                 wages, hours of work and occupational safety and health, 
                 except for non-compliance that does not have, and could not 
                 have, a Material Adverse Effect on HII; and

                          (v)     there is no proceeding, claim, suit, action
                 or governmental investigation pending or, to the knowledge of
                 HII or any of its Subsidiaries, threatened, in respect to
                 which any current or former director, officer, employee or
                 agent of HII or any of its Subsidiaries is or may be entitled
                 to claim indemnification from HII or any of its Subsidiaries
                 pursuant to their respective charters or bylaws, as provided
                 in any indemnification agreement to which HII or any
                 Subsidiary of HII is a party or pursuant to applicable law
                 that has, or could have, a Material Adverse Effect on HII.




                                     -49-
<PAGE>   60

                 (n)      Intangible Property.  HII and its Subsidiaries
         possess or have adequate rights to use all material trademarks, trade
         names, patents, service marks, brand marks, brand names, computer
         programs, databases, industrial designs and copyrights necessary for
         the operation of the businesses of each of HII and its Subsidiaries
         (collectively, the "HII Intangible Property"), except where the
         failure to possess or have adequate rights to use such properties
         would not reasonably be expected to have a Material Adverse Effect on
         HII.  All of the HII Intangible Property is owned by HII or its
         Subsidiaries free and clear of any and all liens, claims or
         encumbrances, except those that are not reasonably likely to have a
         Material Adverse Effect on HII and neither HII nor any such Subsidiary
         has forfeited or otherwise relinquished any HII Intangible Property
         which forfeiture would result in a Material Adverse Effect on HII.  To
         the knowledge of HL&P and HII, the use of the HII Intangible Property
         by HII or its Subsidiaries does not, in any material respect, conflict
         with, infringe upon, violate or interfere with or constitute an
         appropriation of any right, title, interest or goodwill, including,
         without limitation, any intellectual property right, trademark, trade
         name, patent, service mark, brand mark, brand name, computer program,
         database, industrial design, copyright or any pending application
         therefor of any other person and there have been no claims made and
         neither HII nor any of its Subsidiaries has received any notice of any
         claim or otherwise knows that any of the HII Intangible Property is
         invalid or conflicts with the asserted rights of any other person or
         has not been used or enforced or has been failed to be used or
         enforced in a manner that would result in the abandonment,
         cancellation or unenforceability of any of the HII Intangible
         Property, except for any such conflict, infringement, violation,
         interference, claim, invalidity, abandonment, cancellation or
         unenforceability that would not reasonably be expected to have a
         Material Adverse Effect on HII.

                 (o)      Environmental Matters.

                          (i)     Compliance.

                          (A)     Except as set forth in the HII SEC Documents
                                  or the HL&P SEC Documents, HII and each of
                                  its Subsidiaries is in compliance with all
                                  applicable Environmental Laws, except where
                                  the failure to be so in compliance would not
                                  be reasonably likely to have a Material
                                  Adverse Effect on HII.

                          (B)     Except as set forth in the HII SEC Documents
                                  or the HL&P SEC Documents, neither HII nor
                                  any of its Subsidiaries has received any
                                  written communication from any person or
                                  Governmental Entity that alleges that HII or
                                  any of its Subsidiaries is not in compliance
                                  with applicable Environmental Laws, except
                                  where the failure to be so in compliance
                                  would not be reasonably likely to have a
                                  Material Adverse Effect on HII.





                                      -50-
<PAGE>   61
                          (ii)    Environmental Permits.  Except as set forth
                 in the HII SEC Documents or the HL&P SEC Documents, HII and
                 each of its Subsidiaries has obtained or applied for all
                 Environmental Permits necessary for the construction of their
                 facilities and the conduct of their operations, and all such
                 permits are in good standing or, where applicable, a renewal
                 application has been timely filed, is pending and agency
                 approval is expected to be obtained, and HII and its
                 Subsidiaries are in compliance with all terms and conditions
                 of all such Environmental Permits and are not required to make
                 any expenditure in order to obtain or  renew any Environmental
                 Permits, except where the failure to obtain or be in
                 compliance with such Environmental Permits and the requirement
                 to make such expenditures would not be reasonably likely to
                 have a Material Adverse Effect on HII.

                          (iii)   Environmental Claims.  Except as set forth in
                 the HII SEC Documents or the HL&P SEC Documents, there is no
                 Environmental Claim pending or, to the knowledge of HII and
                 its Subsidiaries, threatened

                          (A)     against HII or any of its Subsidiaries,

                          (B)     against any person or entity whose liability
                                  for any Environmental Claim HII or any of its
                                  Subsidiaries has retained or assumed, either
                                  contractually or by operation of law, or

                          (C)     against any real or personal property or
                                  operations that HII or any of its
                                  Subsidiaries owns, leases or manages, in
                                  whole or in part,

                 that, if adversely determined, would be reasonably likely to
                 have a Material Adverse Effect on HII.

                          (iv)    Releases.  Except as set forth in the HII SEC
                 Documents or the HL&P SEC Documents, and except for Releases
                 of Hazardous Materials the liability for which would not be
                 reasonably likely to have a Material Adverse Effect on HII,
                 HII has no knowledge of any Release of any Hazardous Materials
                 that has occurred on any of the properties owned, leased or
                 occupied by HII or any Subsidiary of HII or any predecessor of
                 HII or any Subsidiary of HII which requires investigation,
                 assessment, monitoring, remediation or cleanup under
                 Environmental Laws.

                 (p)      Regulation as a Utility.

                          (i)     HII is a "public utility holding company" as
                 defined in the 1935 Act exempt from all provisions of the 1935
                 Act, except Section 9(a)(2), by order of the SEC pursuant to
                 Section 3(a)(1) of the 1935 Act.  HL&P is a "public utility
                 company" within the meaning of Section 2(a)(5) of the 1935
                 Act.  No other Subsidiary of HII is a "public utility company"
                 within the meaning of Section 2(a)(5) of the 1935 Act.




                                     -51-


<PAGE>   62
                          (ii)    HL&P is regulated as a public utility in the
                 State of Texas and in no other state.  Neither HII nor any
                 "subsidiary company" or "affiliate" (as each such term is
                 defined in the 1935 Act) of HII (other than HL&P) is subject
                 to regulation as a public utility or public service company
                 (or similar designation) by any other state in the United
                 States or any foreign country.

                 (q)      Opinion of Financial Advisor.  The Board of Directors
         of HII has received the opinion of CS First Boston Corporation ("CS
         First Boston") to the effect that, as of the date on which the Board
         of Directors of HII approved this Agreement, the Merger Consideration
         is fair from a financial point of view to HII.

                 (r)      Vote Required.

                          (i)     The affirmative vote of the holders of
                 two-thirds of the outstanding shares of each of the HL&P Class
                 A Common Stock and the HL&P Class B Common Stock, voting
                 separately as a class, is the only vote of the holders of any
                 class or series of capital stock of HL&P necessary to approve
                 this Agreement and the transactions contemplated hereby.  The
                 affirmative vote of HII, the sole holder of HL&P Class A
                 Common Stock, has been obtained prior to or on the date
                 hereof.  HII shall cause its wholly owned subsidiary Houston
                 Industries (Delaware) Incorporated, the sole holder of HL&P
                 Class B Common Stock, to approve this Agreement and the
                 transactions contemplated hereby as soon as practicable after
                 the date hereof.

                          (ii)    The affirmative vote of the holders of
                 two-thirds of the outstanding shares of HII Common Stock is
                 the only vote of the holders of any class or series of capital
                 stock of HII necessary to approve this Agreement, the issuance
                 of shares of HL&P Common Stock pursuant to the Mergers and the
                 other transactions contemplated hereby.

                 (s)      Beneficial Ownership of NorAm Common Stock.  As of
         the date hereof, assuming the accuracy of the representation set forth
         in Section 3.1(b), neither HII nor any of its Subsidiaries
         "beneficially owns" (as defined in Rule 13d-3 under the Exchange Act)
         any of the outstanding NorAm Common Stock.

                 (t)      Brokers.  Except for the fees and expenses payable to
         CS First Boston, which fees are reflected in its agreement with HII (a
         copy of which has been delivered to NorAm), no broker, investment
         banker or other person is entitled to any broker's, finder's or other
         similar fee or commission in connection with the transactions
         contemplated by this Agreement based upon arrangements made by or on
         behalf of HII or HL&P.

                 (u)      Financing.  HII has and will continue to have
         sufficient cash resources available to it to pay the aggregate Cash
         Consideration.




                                     -52-

<PAGE>   63
                 (v)      Insurance.  HII maintains insurance coverage as is
         customary for the business of HII and each of its Subsidiaries (taking
         into account the cost and availability of such insurance), and the
         transactions contemplated hereby will not materially adversely affect
         such coverage.

                 (w)      Regulatory Proceedings.  Except as set forth in the
         HII SEC Documents or the HL&P SEC Documents, neither HII nor any of
         its Subsidiaries all or part of whose rates or services are regulated
         by a Governmental Entity has rates which have been or are being
         collected subject to refund, pending final resolution of any
         proceeding pending before a Governmental Entity or on appeal to the
         courts or is a party to any proceeding before the Governmental Entity
         or on appeal from orders of the Governmental Entity which could result
         in orders having a Material Adverse Effect on HII.

                 (x)      Representations with Respect to Merger Sub.

                          (i)     Merger Sub is a corporation duly organized,
                 validly existing and in good standing under the laws of
                 Delaware.  Merger Sub was formed solely for the purpose of
                 being an acquisition vehicle, has engaged in no other business
                 activities, has incurred no obligations or liabilities, has no
                 other assets and has no Subsidiaries.

                          (ii)    As of the date hereof, the authorized capital
                 stock of Merger Sub consists of 1,000 shares of common stock,
                 par value $0.01 per share, of Merger Sub, all of which are
                 validly issued, fully paid and nonassessable and are owned by
                 HII.

                          (iii)   Merger Sub has all requisite corporate power
                 and authority to enter into this Agreement and to consummate
                 the transactions contemplated hereby.  The execution and
                 delivery of this Agreement and the consummation by Merger Sub
                 of the transactions contemplated hereby have been duly
                 authorized by all necessary corporate action on the part of
                 Merger Sub.  This Agreement has been duly executed and
                 delivered by Merger Sub and, assuming this Agreement
                 constitutes the valid and binding obligation of NorAm,
                 constitutes a valid and binding obligation of Merger Sub
                 enforceable in accordance with its terms, subject, as to
                 enforceability, to bankruptcy, insolvency, reorganization and
                 other laws of general applicability relating to or affecting
                 creditors' rights and to general principles of equity.

                                   ARTICLE IV

                    CONDUCT OF BUSINESS PENDING THE MERGERS

                 4.1      Conduct of Business by NorAm Pending the Mergers.
During the period from the date of this Agreement and continuing until the
Effective Time, NorAm agrees as to itself and its Subsidiaries that (except as
expressly contemplated or permitted by this Agreement, as provided in Section
4.1 of the NorAm Disclosure Schedule (each of which exceptions shall
specifically 



                                     -53-

<PAGE>   64

identify the relevant subsection hereof to which it relates) or to the extent
that HII shall otherwise consent in writing):

                 (a)      Ordinary Course.  Each of NorAm and its Subsidiaries
         shall carry on its businesses in the usual, regular and ordinary
         course in substantially the same manner as heretofore conducted and
         shall use all commercially reasonable efforts to preserve intact its
         present business organizations, keep available the services of its
         current officers and employees, subject to Section 5.10, and endeavor
         to preserve its relationships with customers, suppliers and others
         having business dealings with it to the end that its goodwill and
         ongoing business shall not be impaired in any material respect at the
         Effective Time.

                 (b)      Dividends; Changes in Stock.  NorAm shall not, and it
         shall not permit any of its Subsidiaries to: (i) declare or pay any
         dividends on or make other distributions in respect of any of its
         capital stock or partnership interests, except for the declaration and
         payment of (x) regular quarterly cash dividends not in excess of $.07
         per share of NorAm Common Stock with usual record and payment dates
         for such dividend, (y) regular quarterly cash distributions not in
         excess of $.7813 per share of 6 1/4% Convertible Trust Originated
         Preferred Securities of NorAm Financing I with usual record and
         payment dates for such distribution and (z) dividends from a
         Subsidiary of NorAm to NorAm or another Subsidiary of NorAm and except
         for cash dividends or distributions paid on or with respect to the
         capital stock or partnership interests of a Subsidiary of NorAm; (ii)
         split, combine or reclassify any of its capital stock or issue or
         authorize or propose the issuance of any other securities in respect
         of, in lieu of or in substitution for shares of capital stock of
         NorAm; or (iii) repurchase, redeem or otherwise acquire, or permit any
         of its Subsidiaries to purchase, redeem or otherwise acquire, any
         shares of its capital stock, except as required by the terms of its
         securities outstanding on the date hereof or as contemplated by
         any existing NorAm Benefit Plan.

                 (c)      Issuance of Securities.  Except for the issuance of
         NorAm Common Stock and any rights and options to acquire such shares
         pursuant to NorAm Stock Plans (which shares, rights or options awarded
         for periods subsequent to 1996, if any, under NorAm's 1994 Incentive
         Equity Plan shall be made strictly in accordance with the provisions
         of Section 5.10(d)), NorAm's Direct Stock Purchase and Dividend
         Reinvestment Plan, NorAm's Annual Incentive Plan and the Restricted
         Stock Agreement between Milton Honea and NorAm dated January 31, 1996,
         NorAm shall not, and it shall not permit any of its Subsidiaries to,
         issue, deliver or sell, or authorize or propose to issue, deliver or
         sell, any shares of its capital stock of any class, any Voting Debt or
         other voting securities of NorAm or any securities convertible into,
         or any rights, warrants or options to acquire, any such shares, Voting
         Debt or other voting securities or convertible securities, other than:
         (i) the issuance of NorAm Common Stock upon the exercise of stock
         options granted under the NorAm Stock Plans that are outstanding on
         the date hereof, or in satisfaction of stock grants or stock-based
         awards made prior to the date hereof pursuant to the NorAm Stock Plans
         or upon conversion of the NorAm Convertible Debentures or NorAm
         Convertible Junior Debentures; and (ii) issuances by a wholly owned
         Subsidiary of its capital stock to its parent.




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<PAGE>   65
                 (d)      Governing Documents.  NorAm shall not amend or
         propose to amend its Restated Certificate of Incorporation or Bylaws.

                 (e)      No Acquisitions.  Other than acquisitions as to which
         the aggregate purchase price is not in excess of $25,000,000, NorAm
         shall not, and it shall not permit any of its Subsidiaries to, acquire
         or agree to acquire by merging or consolidating with, or by purchasing
         a substantial equity interest in or a substantial portion of the
         assets of, or by any other manner, any business or any corporation,
         partnership, association or other business organization or division
         thereof.

                 (f)      No Dispositions.  Other than dispositions in the
         ordinary course of business consistent with past practice that are not
         material, individually or in the aggregate, to NorAm and its
         Subsidiaries taken as a whole, or dispositions as to which the
         aggregate market value is not in excess of $10,000,000, NorAm shall
         not, and it shall not permit any of its Subsidiaries to, sell, lease,
         encumber or otherwise dispose of, or agree to sell, lease (whether
         such lease is an operating or capital lease), encumber or otherwise
         dispose of, any of its assets.

                 (g)      No Dissolution, Etc.  NorAm shall not authorize,
         recommend, propose or announce an intention to adopt a plan of
         complete or partial liquidation or dissolution of NorAm or any of its
         Significant Subsidiaries.

                 (h)      Certain Employee Matters.  Except as may be required
         by applicable law or any agreement to which NorAm or any NorAm
         Affiliate is a party on the date hereof or as expressly contemplated
         by this Agreement, including Section 4.1(c), NorAm shall not, nor
         shall it permit any NorAm Affiliate to:

                          (i)     amend, or increase the amount of (or
                 accelerate the payment or vesting of) any benefit or amount
                 payable under, any employee benefit plan or any other
                 contract, agreement, commitment, arrangement, plan or policy
                 providing for compensation or benefits to any current or
                 former director, officer, employee or independent contractor
                 who would be deemed to be an employee under applicable
                 guidelines published by the IRS, and maintained by, contributed
                 to or entered into by, NorAm or any NorAm Affiliate, including,
                 without limitation, the existing NorAm Benefit Plans and       
                 the NorAm Pension Benefit Plans;

                          (ii)    increase (or enter into any contract,
                 agreement, commitment or arrangement to increase in any
                 manner) the compensation or fringe benefits, or otherwise to
                 extend, expand or enhance the engagement, employment or any
                 related rights, of any current or former director, officer,
                 employee or independent contractor who would be deemed to be
                 an employee under applicable guidelines published by the IRS,
                 of NorAm or any NorAm Affiliate, except for normal increases
                 in the ordinary course of business consistent with past
                 practice that, in the aggregate, do not 



                                     -55-


<PAGE>   66
                 result in a material increase in benefits or compensation
                 expense to NorAm or any NorAm Affiliate;

                          (iii)   adopt, establish or implement any plan,
                 policy or other arrangement providing for any form of benefits
                 or other compensation to any current or former director,
                 officer, employee or independent contractor who would be
                 deemed to be an employee under applicable guidelines published
                 by the IRS, of NorAm or any NorAm Affiliate;

                          (iv)    enter into or amend any employment agreement,
                 severance agreement, or other contract, agreement or
                 arrangement with any current or former director, officer,
                 employee or independent contractor who would be deemed to be
                 an employee under applicable guidelines published by the IRS,
                 of NorAm or any NorAm Affiliate; or

                          (v)     pay or agree to pay any pension, retirement
                 allowance or other benefit not required or contemplated by any
                 of the existing NorAm Benefit Plans as in effect on the date
                 of this Agreement to any current or former director, officer,
                 employee or independent contractor who would be deemed to be
                 an employee under applicable guidelines published by the IRS,
                 of NorAm or any NorAm Affiliate.

                 (i)      Indebtedness; Leases; Capital Expenditures.  NorAm
         shall not, nor shall NorAm permit any of its Subsidiaries to, (i)
         incur any indebtedness for borrowed money (except under NorAm's
         existing credit facilities, including NorAm's receivable sales
         facility, and renewals thereof, and refinancings of existing debt that
         permit prepayment of such debt without penalty (other than LIBOR
         breakage costs)) or guarantee any such indebtedness or issue or sell
         any debt securities or warrants or rights to acquire any debt
         securities of such party or any of its Subsidiaries or guarantee any
         debt securities of others, (ii) except in the ordinary course of
         business, enter into any lease (whether such lease is an operating or
         capital lease) or create any mortgages, liens, security interests or
         other encumbrances on the property of NorAm or any of its Subsidiaries
         in connection with any indebtedness thereof or (iii) make or commit to
         make capital expenditures not provided for in the capital budget, as
         amended and approved by NorAm prior to the date hereof and disclosed
         to HII on Section 4.1(i) of the NorAm Disclosure Schedule.

                 (j)      Accounting.  NorAm shall not, nor shall it permit any
         of its Subsidiaries to, make any changes in their accounting methods
         which would be required to be disclosed under the rules and
         regulations of the SEC, except as required by law, rule, regulation or
         GAAP.

                 (k)      Affiliate Transactions.  NorAm shall not, nor shall
         it permit any of its Subsidiaries to, enter into any agreement or
         arrangement with any of their respective affiliates (as such term is
         defined in Rule 405 under the Securities Act, an "Affiliate"), other
         than with wholly owned Subsidiaries of NorAm, on terms materially less
         favorable to 



                                     -56-


<PAGE>   67
         NorAm or such Subsidiary, as the case may be, than could be reasonably
         expected to have been obtained with an unaffiliated third party on an
         arm's-length basis.

                 (l)      Rate Matters.  Subject to applicable law and except
         for non-material filings in the ordinary course of business consistent
         with past practices, 10 business days prior to making any filing
         regarding any changes in its or its Subsidiaries' rates or charges
         (other than pass-through fuel and gas rates or charges under existing
         tariffs or rate schedules), standards of service, accounting, or the
         services it provides (or any amendment thereto) with any Governmental
         Entity, NorAm shall, and shall cause its Subsidiaries to, deliver a
         copy of such filing or amendment to HII.  NorAm shall, and shall cause
         its Subsidiaries to, make all such filings only in the ordinary course
         of business consistent with past practices.

                 (m)      Contracts.  NorAm shall not, nor shall it permit any
         of its Subsidiaries to, except in the ordinary course of business
         consistent with past practice and NorAm policy, modify, amend,
         terminate, renew or fail to use reasonable business efforts to renew
         any material contract or agreement to which it or any of its
         Subsidiaries is a party or waive, release or assign any material
         rights or claims.  NorAm shall not, nor shall it permit any of its
         Subsidiaries to, enter into any contract involving total consideration
         of $10,000,000 or more, or in the case of NorAm Energy Services, Inc.,
         any gas or power marketing contract involving total consideration of
         $50,000,000 or more, with a term longer than one year which is not
         terminable by NorAm or any such Subsidiary of NorAm without penalty
         upon no more than 30 days' prior notice.

                 (n)      Insurance.  NorAm shall, and shall cause its
         Subsidiaries to, maintain with financially responsible insurance
         companies insurance in such amounts and against such risks and losses
         as are customary for companies engaged in their respective businesses.

                 (o)      Permits.  NorAm shall, and shall cause its
         Subsidiaries to, use reasonable efforts to maintain in effect all
         existing NorAm Permits which are material to their respective
         operations.

                 (p)      Tax Matters.  NorAm shall not (i) make or rescind any
         material express or deemed election relating to Taxes unless it is
         reasonably expected that such action will not adversely affect NorAm,
         including elections for any and all joint ventures, partnerships,
         limited liability companies, working interests or other investments
         where NorAm has the capacity to make such binding election, (ii)
         settle or compromise any material claim, action, suit, litigation,
         proceeding, arbitration, investigation, audit or controversy relating
         to Taxes, except where such settlement or compromise will not
         adversely affect NorAm or (iii) change in any material respect any of
         its methods of reporting income or deductions for federal income tax
         purposes from those expected to be employed in the preparation of its
         federal income tax Return for the taxable year ending December 31,
         1995, except as may be required by applicable law or except for such
         changes that are reasonably expected not to adversely affect NorAm.




                                     -57-


<PAGE>   68

                 (q)      Discharge of Liabilities.  NorAm shall not, nor shall
         it permit any of its Subsidiaries to, pay, discharge or satisfy any
         material claims, liabilities or obligations (absolute, accrued,
         asserted or unasserted, contingent or otherwise), other than the
         payment, discharge or satisfaction, in the ordinary course of business
         consistent with past practice (which includes the payment of final and
         unappealable judgments) or in accordance with their terms, of
         liabilities reflected or reserved against in, or contemplated by, the
         most recent consolidated financial statements (or the notes thereto)
         of NorAm included in NorAm's Annual Report on Form 10-K for the fiscal
         year ended December 31, 1995, or incurred in the ordinary course of
         business consistent with past practice.

                 (r)      Other Actions.  NorAm shall not, and shall not permit
         any of its Subsidiaries to, take or fail to take any other action
         which would reasonably be expected to prevent or materially impede,
         interfere with or delay the Mergers.

                 (s)      Agreements.  NorAm shall not, nor shall it permit any
         of its Subsidiaries to, agree in writing or otherwise to take any
         action inconsistent with the foregoing.

                 4.2      Certain Restrictions in Respect of HII and HL&P.
During the period from the date of this Agreement and continuing until the
Effective Time, HII and HL&P agree as to themselves and their Subsidiaries that
(except as expressly contemplated or permitted by this Agreement, as provided
in Section 4.2 of the HII Disclosure Schedule (each of which exceptions shall
specifically identify the relevant subsection hereof to which it relates) or to
the extent that NorAm shall otherwise consent in writing):

                 (a)      Dividends; Changes in Stock.  Each of HII and HL&P
         shall not (i) engage in any material repurchase at a premium,
         recapitalization, restructuring or reorganization with respect to its
         capital stock (other than (x) pursuant to the HII Common Stock
         Repurchase Program or (y) in connection with the HII/HL&P Merger),
         including, without limitation, by way of any extraordinary dividends
         on or other extraordinary distributions in respect of any of its
         capital stock, (ii) engage in any repurchase of HII Common Stock
         (other than pursuant to the HII Stock Plans) during the period
         beginning 45 days prior to the Effective Time and ending at the
         Effective Time or (iii) amend any material term or provision of the
         HL&P Common Stock.

                 (b)      Governing Documents.  HL&P shall not amend or propose
         to amend its Restated Articles of Incorporation with respect to the
         rights of the holders of HL&P Common Stock except as contemplated
         herein.

                 (c)      Insurance.  HII shall, and shall cause its
         Subsidiaries to, maintain with financially responsible insurance
         companies insurance in such amounts and against such risks and losses
         as are customary for companies engaged in their respective businesses.

                 (d)      Permits.  HL&P and HII shall use reasonable efforts
         to maintain in effect all existing HII Permits which are material to
         their respective operations.




                                     -58-


<PAGE>   69
                 (e)      Certain Acquisitions.  Other than acquisitions as to
         which the purchase price is not in excess of $200,000,000, HII shall
         not, and it shall not permit any of its Subsidiaries to, acquire or
         agree to acquire by merging or consolidating with, or by purchasing a
         substantial equity interest in or a substantial portion of the assets
         of, or by any other manner, any business or any corporation,
         partnership, association or other business organization or division
         thereof the principal business of which is not related to the sale,
         transmission, distribution, marketing or generation of electric power
         or gas or other regulated or unregulated utility operations.  HII will
         consult with appropriate NorAm personnel prior to any acquisition with
         a purchase price in excess of $200,000,000 and NorAm shall keep any
         such information strictly confidential.

                 (f)      Other Actions.  Each of HII and HL&P shall not, and
         shall not permit any of their Subsidiaries to, take or fail to take
         any other action which would reasonably be expected to prevent or
         materially impede, interfere with or delay the Mergers.

                 (g)      Agreements.  Each of HII and HL&P shall not agree in
         writing or otherwise to take any action inconsistent with the
         foregoing.

                 4.3      No Solicitation.

                 (a)      From and after the date hereof, NorAm will not, and
         will not authorize or permit any of its officers, directors,
         employees, agents and other representatives or those of any of its
         Subsidiaries (collectively, "NorAm Representatives") to, directly or
         indirectly, solicit, initiate or encourage (including by way of
         providing information) any prospective buyer or the making of any
         proposal that constitutes, or may reasonably be expected to lead to,
         an Acquisition Proposal (as hereinafter defined) from any person or
         engage in any discussions or negotiations with respect thereto or
         otherwise cooperate with or assist or participate in, or facilitate,
         any such proposal; provided, however, that, notwithstanding any other
         provision of this Agreement, (i) NorAm's Board of Directors may take
         and disclose to NorAm's stockholders a position contemplated by Rule
         14e-2(a) promulgated under the Exchange Act and (ii) prior to approval
         of this Agreement by NorAm's stockholders and following receipt from a
         third party (without any solicitation, initiation, encouragement,
         discussion or negotiation, directly or indirectly, by or with NorAm or
         any NorAm Representatives) of a bona fide Acquisition Proposal that is
         financially superior to the NorAm Merger and reasonably capable of
         being financed (as determined in each case in good faith by NorAm's
         Board of Directors after consultation with NorAm's financial
         advisors), (x) NorAm may engage in discussions or negotiations with
         such third party and may furnish such third party information
         concerning NorAm and its business, properties and assets if such third
         party executes a confidentiality and standstill agreement in
         reasonably customary form and (y) the Board of Directors of NorAm may
         withdraw, modify or not make its recommendation referred to in Section
         5.5 or terminate this Agreement in accordance with Section 7.1(g), but
         in each case referred to in the foregoing clauses (i) and (ii) only to
         the extent that the Board of Directors of NorAm shall conclude in good
         faith based on the written advice of NorAm's outside counsel that such
         action is necessary in order



                                     -59-


<PAGE>   70



         for the Board of Directors of NorAm to act in a manner that is
         consistent with its fiduciary obligations under applicable law,
         notwithstanding (1) a binding commitment to consummate an agreement of
         the nature of this Agreement entered into in the proper exercise of
         their applicable fiduciary duties and (2) any concessions which may be
         offered by HII in negotiations entered into pursuant to Section
         7.1(g)(ii) or otherwise.

                 (b)      NorAm shall immediately cease and cause to be
         terminated any existing solicitation, initiation, encouragement,
         activity, discussion or negotiation with any parties conducted
         heretofore by NorAm or any NorAm Representatives with respect to any
         Acquisition Proposal existing on the date hereof.

                 (c)      Prior to taking any action referred to in Section
         4.3(a), if NorAm intends to participate in any such discussions or
         negotiations or provide any such information to any such third party,
         NorAm shall give reasonable prior notice to HII of each such action.
         NorAm will promptly notify HII of any such requests for such
         information or the receipt of any Acquisition Proposal, including the
         identity of the person or group engaging in such discussions or
         negotiations, requesting such information or making such Acquisition
         Proposal, and the material terms and conditions of any Acquisition
         Proposal.

                 (d)      Nothing in this Section 4.3 shall permit NorAm to
         enter into any agreement with respect to an Acquisition Proposal
         during the term of this Agreement (it being agreed that during the
         term of this Agreement NorAm shall not enter into any agreement with
         any person that provides for, or in any way facilitates, an
         Acquisition Proposal other than a confidentiality agreement in the
         form referred to above).

                 (e)      As used in this Agreement, "Acquisition Proposal"
         means any proposal or offer, other than a proposal or offer by HII or
         any of its Affiliates, for, or that could be reasonably expected
         to lead to, a tender or exchange offer, a merger, consolidation or
         other business combination involving NorAm or any Significant
         Subsidiary of NorAm or any proposal to acquire in any manner a
         substantial equity interest in, or any substantial portion of the
         assets of, NorAm or any of its Significant Subsidiaries.

                                   ARTICLE V

                             ADDITIONAL AGREEMENTS

                 5.1      Preparation of S-4 and the Joint Proxy Statement.  As
promptly as practicable after the date hereof, HII, HL&P and NorAm shall
prepare and file with the SEC the Joint Proxy Statement and HL&P shall prepare
and file with the SEC the S-4, in which the Joint Proxy Statement will be
included as a prospectus.  Each of HII, HL&P and NorAm shall use its best
efforts to have the S-4 declared effective under the Securities Act as promptly
as practicable after such filing.  Each of HII, HL&P and NorAm shall use its
best efforts to cause the Joint Proxy Statement to be mailed to the
shareholders of HII and the stockholders of NorAm at the earliest practicable
date.  HL&P shall use its best efforts to obtain all necessary state securities
laws or "blue sky" 



                                    -60-

<PAGE>   71

permits, approvals and registrations in connection with the
issuance of HL&P Common Stock in the Mergers and upon the exercise of the HII
Stock Options and the NorAm Stock Options assumed by HL&P and NorAm shall
furnish all information concerning NorAm and the holders of NorAm Common Stock
as may be reasonably requested in connection with obtaining such permits,
approvals and registrations.

                 5.2      Letter of NorAm's Accountants.  NorAm shall use its
best efforts to cause to be delivered to HII a letter of Coopers & Lybrand,
L.L.P., NorAm's independent public accountants, dated a date within two
business days before the date on which the S-4 shall become effective and
addressed to HII and NorAm, in form and substance reasonably satisfactory to
HII and customary in scope and substance for letters delivered by independent
public accountants in connection with registration statements similar to the
S-4.
                 5.3      Letter of HII's Accountants.  HII shall use its best
efforts to cause to be delivered to NorAm a letter of Deloitte & Touche LLP,
HII's independent public accountants, dated a date within two business days
before the date on which the S-4 shall become effective and addressed to NorAm
and HII, in form and substance reasonably satisfactory to NorAm and customary
in scope and substance for letters delivered by independent public accountants
in connection with registration statements similar to the S-4.

                 5.4      Access to Information.  Upon reasonable notice,
NorAm, HII and HL&P shall each (and shall cause each of their respective
Subsidiaries to) afford to the officers, employees, accountants, counsel and
other representatives of the others, access, during normal business hours
during the period prior to the Effective Time, to all its properties, books,
contracts, commitments and records and, during such period, each of NorAm, HII
and HL&P shall (and shall cause each of their respective Subsidiaries to)
furnish promptly to the other (a) a copy of each report, schedule, registration
statement and other document filed or received by it during such period
pursuant to SEC requirements and (b) all other information concerning its
business, properties and personnel as such other party may reasonably request.
Each of NorAm, HII and HL&P agrees that it will not, and will cause its
respective representatives not to, use any information obtained pursuant to
this Section 5.4 for any purpose unrelated to the consummation of the
transactions contemplated by this Agreement.  The Confidentiality Agreements
dated July 15, 1996 between HII and NorAm (the "Confidentiality Agreements")
shall apply with respect to information furnished thereunder or hereunder and
any other activities contemplated thereby.

                 5.5      NorAm Stockholders' Meeting.  NorAm shall (i) call a
meeting of its stockholders (the "NorAm Stockholders' Meeting") to be held as
promptly as practicable after the date hereof for the purpose of voting upon
this Agreement and the NorAm Merger (or in lieu thereof and only in the
circumstances set forth in Section 8.1 or Section 8.5, the Alternative Merger
or the Second Alternative Merger, respectively), (ii) through its Board of
Directors, recommend to its stockholders approval of such matters and not
rescind such recommendation, (iii) use its best efforts to obtain approval and
adoption of this Agreement and the NorAm Merger by its stockholders and (iv)
use all reasonable efforts to hold such meeting as soon as practicable after
the date upon which the S-4 becomes effective; provided, however, that nothing
herein obligates NorAm to take any 



                                    -61-

<PAGE>   72

action that would cause its Board of Directors to act inconsistently with their
fiduciary duties as determined by the Board of Directors of NorAm in good faith
based on the written advice of NorAm's outside counsel.  The NorAm
Stockholders' Meeting shall be held on such date as soon as practicable after
the date upon which the S-4 becomes effective as NorAm and HII shall mutually
determine.

                 5.6      HII Shareholders' Meeting.  HII (i) shall call the
HII Shareholders' Meeting to be held as promptly as practicable after the date
hereof for the purpose of voting upon this Agreement, the HII/HL&P Merger and
the issuance of the Stock Consideration in the NorAm Merger (or in lieu of the
Mergers and only in the circumstances set forth in Section 8.1 or 8.5, the
Alternative Merger or the Second Alternative Merger, respectively), (ii)
through its Board of Directors, recommend to its shareholders approval of such
matters and not rescind such recommendation, (iii) use its best efforts to
obtain approval and adoption of this Agreement, the HII/HL&P Merger and the
issuance of the Stock Consideration in the NorAm Merger by its shareholders and
(iv) use all reasonable efforts to hold such meeting as soon as practicable
after the date upon which the S-4 becomes effective; provided, however, that
nothing herein obligates HII to take any action that would cause its Board of
Directors to act inconsistently with their fiduciary duties as determined by
the Board of Directors of HII in good faith based on the written advice of
HII's outside counsel.  The meeting of HII's shareholders for the purpose of
voting upon this Agreement, the HII/HL&P Merger and the issuance of the Stock
Consideration in the NorAm Merger (the "HII Shareholders' Meeting") shall be
held on such date as soon as practicable after the date upon which the S-4
becomes effective as NorAm and HII shall mutually determine.

                 5.7      Regulatory and Other Approvals.

                 (a)      HSR Act.  Each party hereto shall file or cause to be
         filed with the Federal Trade Commission and the Department of Justice
         any notifications required to be filed by their respective "ultimate
         parent" companies under the HSR Act and the rules and regulations
         promulgated thereunder with respect to the transactions contemplated
         hereby.  Such parties will use all commercially reasonable efforts to
         make such filings promptly and to respond on a timely basis to any
         requests for additional information made by either of such agencies.

                 (b)      Other Regulatory Approvals.  Each party hereto shall
         cooperate and use its best efforts to promptly prepare and file all
         necessary documentation, to effect all necessary applications,
         notices, petitions, filings and other documents, and to use all
         commercially reasonable efforts to obtain (and will cooperate with
         each other in obtaining) any consent, acquiescence, authorization,
         order or approval of, or any exemption or nonopposition by, any
         Governmental Entity required to be obtained or made by NorAm, HII,
         HL&P or any of their Subsidiaries in connection with the Mergers or
         the taking of any action contemplated thereby or by this Agreement.

                 (c)      Other Approvals.  Each party hereto will, and will
         cause its Subsidiaries to, take all commercially reasonable actions
         necessary to obtain (and will cooperate with each 



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<PAGE>   73

         other in obtaining) all NorAm Required Consents and all HII
         Required Consents, as the case may be.

                 5.8      Agreements of Others.  Prior to the Effective Time,
NorAm shall cause to be prepared and delivered to HL&P a list identifying all
persons who, at the time of the NorAm Stockholders' Meeting, may be deemed to
be "affiliates" of NorAm as that term is used in paragraphs (c) and (d) of Rule
145 under the Securities Act (the "Rule 145 Affiliates").  NorAm shall use its
best efforts to cause each person who is identified as a Rule 145 Affiliate in
such list to deliver to HL&P, at or prior to the Effective Time, a written
agreement, in the form to be approved by the parties hereto, that such Rule 145
Affiliate will not sell, pledge, transfer or otherwise dispose of any shares of
HL&P Common Stock issued to such Rule 145 Affiliate pursuant to the NorAm
Merger, except pursuant to an effective registration statement or in compliance
with Rule 145 or an exemption from the registration requirements of the
Securities Act.

                 5.9     Authorization for Shares and Stock Exchange Listing.  
Prior to the Effective Time, HL&P shall have taken all action necessary to
permit it to issue the number of shares of HL&P Common Stock required to be
issued pursuant to Sections 2.1 and 2.2. HL&P shall use all reasonable efforts
to cause the shares of HL&P Common Stock to be issued in the Mergers and the
shares of HL&P Common Stock to be reserved for issuance upon exercise of the
HII Stock Options and the NorAm Stock Options assumed by HL&P pursuant to
Section 5.11 and issuances under the HII Stock Plans and the NorAm Stock Plans
to be approved for listing on the NYSE, subject to official notice of issuance,
prior to the Closing Date.

                 5.10     Employee Matters.

                 (a)      HL&P and NorAm agree that all employees of NorAm
         immediately prior to the Effective Time shall be employed by the NorAm
         Merger Surviving Corporation immediately after the Effective Time, it
         being understood that neither the NorAm Merger Surviving Corporation
         nor HL&P shall have any obligation to continue employing such
         employees for any length of time thereafter.

                 (b)      From and after the Effective Time, to the extent of
         the accrued benefits described in this Section 5.10(b), HL&P will
         honor in accordance with their respective terms the employee benefit
         plans, programs, policies, arrangements and agreements listed on
         Section 5.10(b) to the NorAm Disclosure Schedule (the "Section 5.10(b)
         Plans") and will not take, or permit to be taken, any action that
         would reduce, eliminate or otherwise adversely affect the compensation
         or benefits accrued at the Effective Time (or, solely with respect to
         those three severance plans listed as Items 6, 7 and 8 on Section
         5.10(b) to the NorAm Disclosure Schedule, if greater, at termination
         of employment after the Effective Time) for any employee or former
         employee of NorAm or any NorAm Affiliate under any Section 5.10(b)
         Plan.  Nothing contained in this Section 5.10(b) shall preclude HL&P
         from amending any Section 5.10(b) Plan to cease the accrual of
         benefits thereunder after the Effective Time (or, solely with respect
         to those three severance plans listed as Items 6, 7 and 8 on Section
         5.10(b) to the NorAm Disclosure Schedule, if greater, at termination
         of employment after the Effective Time).  For purposes of any Section
         5.10(b) Plan that contains a provision relating





                                      -63-
<PAGE>   74

         to a change in control of NorAm, HL&P acknowledges that the
         consummation of the NorAm Merger constitutes such a change in
         control.

                 (c)      For one year after the Effective Time, HL&P will
         continue or cause to be continued without adverse change to any
         employee or former employee of NorAm and the NorAm Affiliates all
         NorAm Benefit Plans other than the Section 5.10(b) Plans and the types
         of plans described in Section 5.10(d) and (e) below, except that any
         NorAm Common Stock investment fund offered under a NorAm Benefit Plan
         will be replaced by either a HL&P Common Stock fund or a traditional
         investment fund, as determined by HL&P.  From and after the expiration
         of the one-year period following the Effective Time, HL&P will provide
         the employees of NorAm and each NorAm Affiliate with benefits that in
         the aggregate are not less favorable than those then provided to
         similarly situated employees of HL&P.  In the event a HL&P employee
         benefit plan is made available to employees of NorAm and the NorAm
         Affiliates, all periods of service with NorAm and the NorAm Affiliates
         will be credited to such employees for all purposes other than accrual
         of benefits, including the eligibility to participate and receive
         benefits for which a specified period of service is required under
         such HL&P employee benefit plan.  The foregoing provisions of this
         Section 5.10(c) will not apply to any employee benefits provided to
         employees of NorAm and the NorAm Affiliates who are covered by a
         collective bargaining agreement to the extent such provisions are
         inconsistent with the terms of any applicable collective bargaining
         agreement.

                 (d)      If the Effective Time does not occur on or before
         December 31, 1996, awards made by NorAm under the NorAm 1994 Incentive
         Equity Plan (the "NorAm Incentive Plan") with respect to the
         performance cycle beginning January 1, 1997 (the "Cycle X Awards")
         will be made by utilizing the same salary grade levels and the same
         award levels assigned to each salary grade that were utilized in
         making awards under the NorAm Incentive Plan for the performance cycle
         beginning January 1, 1996.

                          Each Cycle X Award shall be conditioned upon (1) if
         the recipient is covered by an individual severance agreement, the
         recipient's waiver of the acceleration of incentive benefits provided
         for in Section 3 of such severance agreement solely with respect to
         any outstanding Cycle X Awards, (2) the recipient's agreement that,
         notwithstanding any provision of any outstanding award agreement to
         the contrary, (a) if the recipient becomes employed by HL&P or an
         affiliate of  HL&P at the Effective Time, each outstanding Cycle X
         Award shall automatically expire without the payment of any
         consideration to the recipient other than the grant of substitute
         awards by HL&P as described below and (b) if the recipient does not
         become employed by HL&P or an affiliate of  HL&P at the Effective
         Time, (i) a fraction of the options subject to each outstanding Cycle  
         X Award under the NorAm Incentive Plan shall become immediately
         exercisable by the recipient (and the option shall expire with respect
         to the remaining shares) and (ii) a fraction of all nonforfeited
         shares of restricted stock and opportunity shares subject to such
         award shall be immediately delivered to the recipient (and the
         remaining restricted shares and opportunity shares shall be
         forfeited), the number of such option shares, restricted shares and
         opportunity shares to 



                                    -64-


<PAGE>   75

         be based on the opportunity (maximum) level of performance and the
         fraction to be determined by multiplying the option shares, restricted
         shares and opportunity shares by a fraction, the numerator of which is
         the number of calendar days from and including the effective date of
         the applicable performance cycle through the date of the Effective
         Time and the denominator of which is the total number of days in the
         applicable performance cycle and (3) the recipient's agreement that
         the foregoing arrangement does not constitute a reduction in the
         aggregate of the recipient's base pay and target variable pay (for
         individuals not covered by individual severance agreements) or a
         reduction in the aggregate of the recipient's base pay and incentive
         pay (for individuals covered by individual severance agreements) or
         the termination or denial of the recipient's rights to any employee
         benefits or a reduction in the scope or value thereof.

                 As of the Effective Time, HL&P shall cause one or more
         substitute long-term incentive awards to be granted under the HII 1994
         Long Term Incentive Compensation Plan to each individual whose
         award(s) under the NorAm Incentive Plan expired upon the individual's
         employment with HL&P as of the Effective Time in accordance with the
         preceding paragraph.  One substitute award shall be granted for each
         award so expired on terms and conditions to be determined in good
         faith by the Personnel Committee of HL&P to be substantially equal to
         the terms and conditions of the expired award.  With respect to each
         performance cycle commencing after the Effective Time, executive and
         management employees of NorAm and the NorAm Affiliates will be
         eligible to participate in all long-term and short-term incentive
         compensation, variable pay and similar plans maintained by HL&P for
         other executive and management employees of HL&P and the affiliates of
         HL&P on substantially the same basis as similarly situated executives
         and management employees of HL&P and the affiliates of HL&P.  In
         addition, all other employees of NorAm and the NorAm Affiliates
         (including employees covered by a collective bargaining agreement to
         the extent permitted by such agreement) will be eligible to
         participate in variable pay plans and programs of HL&P on
         substantially the same basis as similarly situated employees of HL&P
         and the affiliates of HL&P.  The Personnel or Benefits Committee of
         HL&P, as applicable, shall have the sole and absolute authority to
         determine the NorAm employees eligible to receive, and the amount of,
         benefits provided under this Section 5.10(d), whose good faith
         determination shall be conclusive and binding on all parties hereto,
         including any employee who was employed by NorAm prior to the
         Effective Time.

                 (e)      For the calendar year ending December 31, 1996, NorAm
         will pay to each employee of NorAm and the NorAm Affiliates who is a
         participant in a NorAm annual incentive compensation plan or a
         variable pay program the amount of annual incentive compensation or
         variable pay awarded to such employee for 1996 based on the level of
         performance goals actually attained by NorAm.  The amount of such
         incentive compensation or variable pay will be determined in
         accordance with normal practice, will not be prorated if the Effective
         Time is prior to December 31, 1996, and will be paid on or before
         March 15, 1997.  If the Effective Time occurs in 1997, annual
         incentive compensation and variable pay awarded to employees of NorAm
         and the NorAm Affiliates for calendar 1997 will be paid to such
         employees as soon as practicable after the Effective Time based on the
         level of 



                                    -65-

<PAGE>   76

         performance goals NorAm actually attained at the Effective Time (if
         such performance level can reasonably be determined) or (if such
         performance level cannot reasonably be determined) based on the level
         of performance goals that would have been attained by NorAm at
         the target level of performance and will be prorated by multiplying
         the amount of incentive compensation so determined by a fraction, the
         numerator of which is the number of calendar days from and including
         January 1, 1997, through the date of the Effective Time and the
         denominator of which is 365.

                 (f)      For a period of at least two years after the
         Effective Time, HL&P will maintain and continue initiatives similar to
         those reflected in NorAm's Operation Breakthrough and will consider
         extending or integrating such initiatives into HL&P and the affiliates
         of HL&P in order to more fully integrate the businesses, operations
         and employees of HL&P and NorAm.

                 (g)      NorAm has previously established "rabbi trusts" (the
         "NorAm Rabbi Trusts") to fund certain nonqualified benefit plans,
         programs and compensation agreements for employees and directors.
         Pursuant to resolutions adopted by the NorAm Board of Directors at the
         time the NorAm Rabbi Trusts were established, the execution of this
         Agreement by NorAm will cause the NorAm Rabbi Trusts to be funded.
         NorAm will take such action as is necessary to rescind such funding
         resolutions.  In exchange, HL&P agrees to maintain the NorAm Rabbi
         Trusts for an indefinite period of time and, notwithstanding any
         provision of the NorAm Rabbi Trusts that would otherwise permit
         earlier termination, to terminate the NorAm Rabbi Trusts only with the
         unanimous consent of those persons who, immediately prior to any
         proposed termination, would benefit from the NorAm Rabbi Trusts if the
         NorAm Rabbi Trusts were fully funded.  In addition, HL&P agrees to
         deliver to the trustee of the NorAm Rabbi Trusts, on or before the
         occurrence of a change in control of HL&P (a change in control to have
         the same meaning as under the NorAm Rabbi Trusts as if the term
         "Company" referred to HL&P), an amount that is not less than 120%
         multiplied by the aggregate "Fully Funded" amounts for all
         "subaccounts" as most recently determined by the "Actuary" (as such
         terms are defined in the NorAm Rabbi Trusts), unless those persons who
         would benefit from the funding of the NorAm Rabbi Trusts unanimously
         waive such funding.

                 5.11     Stock Options. (a)  At the Effective Time, each
outstanding NorAm Stock Option, whether vested or unvested, of a holder who has
properly elected (in accordance with Section 2.2(e)(i)) to have HL&P assume his
or her NorAm Stock Options, shall be assumed by HL&P.  Each such option shall
be deemed to constitute an option to acquire, on the same terms and conditions
(giving effect to any accelerated vesting caused by the NorAm Merger) as were
applicable under such NorAm Stock Option, a number of shares of HL&P Common
Stock equal to the number of shares of NorAm Common Stock purchasable pursuant
to such NorAm Stock Option multiplied by the Stock Consideration, at a price
per share equal to the per-share exercise price for the shares of NorAm Common
Stock purchasable pursuant to such NorAm Stock Option divided by the Stock
Consideration; provided, however, that in the case of any option to which
Section 421 of the Code applies by reason of its qualification under any of
Sections 422-424 of the Code, the 



                                    -66-


<PAGE>   77

option price, the number of shares purchasable pursuant to such option and the
terms and conditions of exercise of such option shall be determined in order to
comply with Section 424(a) of the Code; and provided further, that the number
of shares of HL&P Common Stock that may be purchased upon exercise of such
NorAm Stock Option shall not include any fractional share and, upon exercise of
such NorAm Stock Option, a cash payment shall be made for any fractional share
based upon the closing price of a share of HL&P Common Stock on the NYSE on the
last Trading Day of the calendar month immediately preceding the date of
exercise.

         (b)     HL&P shall take all corporate action necessary to reserve for
issuance a sufficient number of shares of HL&P Common Stock for delivery upon
exercise of the NorAm Stock Options assumed in accordance with this Section
5.11. As soon as practicable after the Effective Time, HL&P shall file with the
SEC a registration statement on Form S-8 (or any successor form) or another
appropriate form with respect to the shares of HL&P Common Stock subject to the
NorAm Stock Options assumed in accordance with this Section 5.11 and shall use
all commercially reasonable efforts to maintain the effectiveness of such
registration statement or registration statements (and maintain the current
status of the prospectus or prospectuses contained therein) for so long as the
NorAm Stock Options remain outstanding.

                 5.12     Indemnification; Directors' and Officers' Insurance.
(a) From and after the Effective Time, the NorAm Merger Surviving Corporation
shall indemnify, defend and hold harmless each person who is now, or has been
at any time prior to the date hereof or who becomes prior to the Effective
Time, an officer or director of NorAm or any of its Subsidiaries or an employee
of NorAm or any of its Subsidiaries who acts as a fiduciary under any NorAm
Benefit Plan or NorAm Pension Benefit Plan (the "Indemnified Parties") against
all losses, claims, damages, costs, expenses (including attorneys' fees),
liabilities or judgments or amounts that are paid in settlement with the
approval of the indemnifying party (which approval shall not be unreasonably
withheld) of or in connection with any threatened or actual claim, action,
suit, proceeding or investigation based in whole or in part on or arising in
whole or in part out of the fact that such person is or was a director,
officer, or such employee of NorAm or any of its Subsidiaries whether
pertaining to any matter existing or occurring at or prior to the Effective
Time and whether asserted or claimed prior to, or at or after, the Effective
Time ("Indemnified Liabilities"), including all Indemnified Liabilities based
in whole or in part on, or arising in whole or in part out of, or pertaining to
this Agreement or the transactions contemplated hereby, in each case to the
full extent permitted under applicable law (and the NorAm Merger Surviving
Corporation will pay expenses in advance of the final disposition of any such
action or proceeding to each Indemnified Party to the full extent permitted by
law).  Without limiting the foregoing, in the event any such claim, action,
suit, proceeding or investigation is brought against any Indemnified Parties
(whether arising before or after the Effective Time), (i) the NorAm Merger
Surviving Corporation shall have the right to assume the defense thereof (which
it shall, in cooperation with the Indemnified Parties, vigorously defend) and
the NorAm Merger Surviving Corporation shall not be liable to such Indemnified
Parties for any legal expenses of other counsel or any other expenses
subsequently incurred by such Indemnified Parties in connection with the
defense thereof, except that if the NorAm Merger Surviving Corporation elects
not to assume such defense or there is a conflict of interest between the NorAm
Merger Surviving Corporation, on the one hand, and the Indemnified Parties, on
the 




                                    -67-


<PAGE>   78

other hand, including situations in which there are one or more legal defenses
available to the Indemnified Party that are different from or additional to
those available to the NorAm Merger Surviving Corporation, the Indemnified
Parties may retain counsel satisfactory to them, and the NorAm Merger Surviving
Corporation shall pay all reasonable fees and expenses of such counsel for the
Indemnified Parties promptly as statements therefor are received; provided,
however, that the NorAm Merger Surviving Corporation shall not, in connection
with any one such action or proceeding or separate but substantially similar
actions or proceedings arising out of the same general allegations, be liable
for the fees and expenses of more than one separate firm of attorneys at any
time for all Indemnified Parties except to the extent that local counsel, in
addition to such parties' regular counsel, is required in order to effectively
defend against such action or proceeding, (ii) the Indemnified Parties will
cooperate in the defense of any such matter and (iii) the NorAm Merger
Surviving Corporation shall not be liable for any settlement effected without
its prior written consent (which consent shall not be unreasonably withheld),
and provided, further, that the NorAm Merger Surviving Corporation shall not
have any obligation hereunder to any Indemnified Party when and if a court of
competent jurisdiction shall ultimately determine, and such determination shall
have become final, that the indemnification of such Indemnified Party in the
manner contemplated hereby is prohibited by applicable law.  NorAm, HII, HL&P
and Merger Sub agree that all rights to indemnification, including provisions
relating to advances of expenses incurred in defense of any action or suit,
existing in favor of the Indemnified Parties (including in NorAm's Restated
Certificate of Incorporation or Bylaws or in the indemnification agreements
previously provided to HII) with respect to matters occurring through the
Effective Time, shall survive the Mergers and shall continue in full force and
effect for a period of six years from the Effective Time; provided, however,
that all rights to indemnification in respect of any Indemnified Liabilities
asserted or made within such period shall continue until the disposition of
such Indemnified Liabilities.

         (b)     For a period of six years after the Effective Time, the NorAm
Merger Surviving Corporation shall cause to be maintained in effect the current
policies of directors' and officers' liability insurance maintained by NorAm
and its Subsidiaries (provided that the NorAm Merger Surviving Corporation may
substitute therefor policies of at least the same coverage and amounts
containing terms and conditions that are no less advantageous in any material
respect to the Indemnified Parties) with respect to matters arising before the
Effective Time, provided that the NorAm Merger Surviving Corporation shall not
be required to pay an annual premium for such insurance in excess of 150% of
the last annual premium paid by NorAm prior to the date hereof, but in such
case shall purchase as much coverage as possible for such amount.  NorAm
represents that the last annual premium paid by NorAm for such insurance prior
to the date hereof is the amount set forth in Section 5.12(b) to the NorAm
Disclosure Schedule.

                 5.13     Compliance with WARN Act.  HII shall, or shall cause
HL&P or Merger Sub to, comply with all laws governing the shutdown of
operations of facilities, including any action that could be construed as a
"plant closing" or "mass layoff" as those terms are defined in the Worker
Adjustment and Retraining Notification Act, 29 U.S.C.  Section  2101.2109
("WARN") or any "employment loss" as defined in WARN which an employee of NorAm
or any of its Subsidiaries may suffer or may be deemed to suffer in connection
with the NorAm Merger.





                                      -68-
<PAGE>   79
                 5.14     Agreement to Defend.  In the event any claim, action,
suit, investigation or other proceeding by any governmental body or other
person or other legal or administrative proceeding is commenced that questions
the validity or legality of the transactions contemplated hereby or seeks
damages in connection therewith, the parties hereto agree to cooperate and use
their reasonable efforts to defend against and respond thereto.

                 5.15     Public Announcements.  HII, HL&P and Merger Sub, on
the one hand, and NorAm, on the other hand, will consult with each other before
issuing any press release or otherwise making any public statements with
respect to the transactions contemplated by this Agreement, and shall not issue
any such press release or make any such public statement prior to such
consultation, except as may be required by applicable law or by obligations
pursuant to any listing agreement with any national securities exchange or
transaction reporting system.

                 5.16     Other Actions.  Except as contemplated by this
Agreement, neither HII, HL&P nor NorAm shall, and none of them shall permit any
of their respective Subsidiaries to, take or agree or commit to take any action
that is reasonably likely to result in any of its respective representations or
warranties hereunder being untrue in any material respect or in any of the
conditions to the Mergers set forth in Article VI not being satisfied.

                 5.17     Advice of Changes; SEC Filings.  HII, HL&P and NorAm
shall confer on a regular basis with each other, report on operational matters
and promptly advise each other orally and in writing of any change or event
having, or which, insofar as can reasonably be foreseen, could have, a Material
Adverse Effect on HII or NorAm, as the case may be.  NorAm, HII and HL&P shall
promptly provide each other (or their respective counsel) copies of all filings
made by such party with the SEC or any other Governmental Entity in connection
with this Agreement and the transactions contemplated hereby.

                 5.18     Reorganization.  It is the intention of the parties
hereto that the Mergers will qualify as a reorganization described in Section
368(a) of the Code (and any comparable provisions of applicable state law).
Neither HL&P, HII nor NorAm (nor any of their respective Subsidiaries) will
take or omit to take any action (whether before, on or after the Closing Date)
that would cause the Mergers not to be so treated.  The parties will
characterize the Mergers as such a reorganization for purposes of all Returns
and other filings.

                 5.19     HII/HL&P Merger Surviving Corporation Board of
Directors.  The Board of Directors of the HII/HL&P Merger Surviving Corporation
will take such action as may be necessary (including the amendment of the
HII/HL&P Merger Surviving Corporation's bylaws) to cause the election of four
persons, each of whom shall be mutually agreed upon by NorAm and HII and shall
have been a director of NorAm immediately prior to the date hereof, to be
directors of the HII/HL&P Merger Surviving Corporation immediately after the
Effective Time.  One of such directors shall be elected as a Class II director,
one shall be elected as a Class III director, and two shall be elected as Class
I directors.  Subject to the fiduciary duties of its Board of Directors,
HII/HL&P Merger Surviving Corporation shall nominate and solicit proxies for
the re-election of





                                      -69-
<PAGE>   80

such Class II director for an additional three-year period upon expiration of
his initial term, provided such director continues to be qualified and willing
to serve.

                 5.20     Execution of Supplemental Indentures.  At the
Effective Time, the NorAm Merger Surviving Corporation, and additionally in the
case of the NorAm Convertible Debentures and the NorAm Convertible Junior
Debentures, the HII/HL&P Merger Surviving Corporation, shall execute and
deliver, supplemental indentures, in form satisfactory to HII, assuming the
obligations of NorAm under the indentures governing NorAm's long-term
indebtedness.

                 5.21     Disclosure Schedules.  The NorAm Disclosure Schedule
and the HII Disclosure Schedule (collectively, the "Disclosure Schedules") are
an integral part of this Agreement and shall modify or otherwise affect the
respective representations, warranties, covenants or agreements of the parties
hereto contained in this Agreement.  All of the representations and warranties
of the parties hereto contained herein shall apply as if any of the Mergers,
the Alternative Merger or the Second Alternative Merger are to be consummated.

                 5.22     Fairness Opinions Not Withdrawn.  It shall be a
condition to the obligation of NorAm to mail the Joint Proxy Statement to its
stockholders and to hold the NorAm Stockholders' Meeting that the opinion of
Merrill Lynch, referred to in Section 3.1(t), shall not have been withdrawn,
and it shall be a condition to the obligation of HII to mail the Joint Proxy
Statement to its shareholders and to hold the HII Shareholders' Meeting that
the opinion of CS First Boston, referred to in Section 3.2(q), shall not have
been withdrawn.


                                   ARTICLE IV

                              CONDITIONS PRECEDENT

                 6.1      Conditions to Each Party's Obligation to Effect the
Merger.  The respective obligation of each party to effect the Mergers shall be
subject to the satisfaction prior to the Closing Date of the following
conditions:

                 (a)      NorAm Stockholder Approval.  This Agreement and the
         NorAm Merger shall have been approved and adopted by the affirmative
         vote of the holders of a majority of the outstanding shares of NorAm
         Common Stock entitled to vote thereon.

                 (b)      HII Shareholder Approval.  This Agreement, the
         HII/HL&P Merger and the issuance of the Stock Consideration in the
         NorAm Merger shall have been approved and adopted by the affirmative
         vote of the holders of two-thirds of the outstanding shares of HII
         Common Stock entitled to vote thereon.

                 (c)      NYSE Listing.  The shares of HL&P Common Stock
         issuable to HII shareholders and NorAm stockholders pursuant to this
         Agreement and such other shares of





                                      -70-
<PAGE>   81
         HL&P Common Stock required to be reserved for issuance in connection
         with the Mergers shall have been authorized for listing on the NYSE
         upon official notice of issuance.

                 (d)      Other Approvals.  The waiting period applicable to
         the consummation of the Mergers under the HSR Act shall have expired
         or been terminated and all filings required to be made prior to the
         relevant Effective Time with, and all consents, approvals, permits and
         authorizations required to be obtained prior to the relevant Effective
         Time from, any Governmental Entity in connection with the execution
         and delivery of this Agreement and the consummation of the
         transactions contemplated hereby by NorAm, HII, HL&P and Merger Sub
         shall have been made or obtained (as the case may be), except for such
         consents, approvals, permits and authorizations the failure of which
         to be obtained would not, in the aggregate, be reasonably likely in
         the judgment of HII to result in a Material Adverse Effect on HL&P
         (assuming the Mergers have taken place) or to materially adversely
         affect the consummation of the Mergers, and no such consent, approval,
         permit or authorization shall impose terms or conditions that would
         have, or would be reasonably likely to have, in the judgment of HII, a
         Material Adverse Effect on NorAm or HL&P (assuming the Mergers have
         taken place).  Unless otherwise agreed to by HII, no such consent,
         approval, permit or authorization shall then be subject to appeal.

                 (e)      S-4.  The S-4 shall have become effective under the
         Securities Act and shall not be the subject of any stop order or
         proceedings seeking a stop order.

                 (f)      No Injunctions or Restraints.  No temporary
         restraining order, preliminary or permanent injunction or other order
         issued by any court of competent jurisdiction, no order of any
         Governmental Entity having jurisdiction over HL&P, HII or NorAm, and
         no other legal restraint or prohibition shall be in effect (an
         "Injunction") preventing or making illegal the consummation of the
         Mergers; provided, however, that prior to any party invoking this
         condition, such party shall have complied fully with its obligations
         under Section 5.7.

                 6.2      Conditions of Obligations of HII, HL&P and Merger
Sub.  The obligations of HII, HL&P and Merger Sub to effect the Mergers are
subject to the satisfaction of the following conditions, any or all of which
may be waived in whole or in part by HII, HL&P and Merger Sub.

                 (a)      Representations and Warranties.  Each of the
         representations and warranties of NorAm set forth in this Agreement
         shall be true and correct in all material respects as of the date of
         this Agreement and (except to the extent such representations and
         warranties speak as of an earlier date) as of the Closing Date as
         though made on and as of the Closing Date, except where the failure to
         be so true and correct (without giving effect to the individual
         materiality qualifications and thresholds otherwise contained in
         Section 3.1 hereof) could not reasonably be expected to have a
         Material Adverse Effect on NorAm or as otherwise contemplated by this
         Agreement, and HII shall have received a certificate signed on behalf
         of NorAm by the Chief Executive Officer and the Chief Financial
         Officer of NorAm to such effect.





                                      -71-
<PAGE>   82
                 (b)     Performance of Obligations of NorAm.  NorAm shall 
         have performed in all material respects all obligations required to be
         performed by it under this Agreement at or prior to the Closing
         Date, and HII shall have received a certificate signed on behalf of
         NorAm by the Chief Executive Officer and the Chief Financial Officer
         of NorAm to such effect.

                 (c)      Letters from Rule 145 Affiliates.  HL&P shall have
         received from each person named in the letter referred to in Section
         5.8 an executed copy of an agreement as provided in Section 5.8.

                 (d)      Number of NorAm Dissenting Shares.  At the Effective
         Time, the aggregate number of NorAm Dissenting Shares shall not exceed
         10% of the total number of issued and outstanding shares of NorAm
         Common Stock.

                 (e)      Tax Opinion.  HII shall have received an opinion, in
         form and substance satisfactory to HII, dated the Closing Date, a copy
         of which will be furnished to NorAm, of Baker & Botts, L.L.P., counsel
         to HII, to the effect that, if the Mergers (or in lieu thereof, the
         Alternative Merger or the Second Alternative Merger) are consummated
         in accordance with the terms of this Agreement, each of the HII/HL&P
         Merger and the NorAm Merger (or in lieu thereof, the Alternative
         Merger or the Second Alternative Merger) will be treated for federal
         income tax purposes as a reorganization within the meaning of Section
         368(a) of the Code.  In rendering such opinion, such counsel may
         receive and rely upon appropriate representations of fact contained in
         certificates of HII, HL&P, Merger Sub, NorAm and certain stockholders
         of HII and of NorAm, which representations are in form and substance
         reasonably satisfactory to such counsel.

                 (f)      No Material Limitations or Restraints.  No Injunction
         shall be in effect (i) imposing any material limitation upon the
         ability of HII or any of its Subsidiaries effectively to control the
         business or operations of NorAm or any of its Subsidiaries or (ii)
         prohibiting or imposing any material limitation upon HII's or any of
         its Subsidiaries' ownership or operation of all or any material
         portion of the business or assets or properties of HII or NorAm or any
         of their respective Subsidiaries or compelling HII or NorAm or any of
         their respective Subsidiaries to divest or hold separate all or any
         material portion of the business or assets or properties of HII or
         NorAm or any of their respective Subsidiaries or imposing any other
         material limitation on any of them in the conduct of their businesses
         and no such action by any Governmental Entity seeking such an
         Injunction or an Injunction preventing or making illegal the
         consummation of the Mergers shall be pending; provided, however, that
         prior to invoking this condition, HII, HL&P and Merger Sub shall have
         complied fully with their obligations under Section 5.7.

                 (g)      NorAm Required Consents.  The NorAm Required Consents
         shall have been obtained, except for such NorAm Required Consents the
         failure of which to be obtained would not have a Material Adverse
         Effect on NorAm.





                                      -72-
<PAGE>   83
                 6.3     Conditions of Obligations of NorAm.  The obligation 
of NorAm to effect the Merger is subject to the satisfaction of the following
conditions, any or all of which may be waived in whole or in part by NorAm:

                 (a)      Representations and Warranties.  Each of the
         representations and warranties of HII, HL&P and Merger Sub set forth
         in this Agreement shall be true and correct in all material respects
         as of the date of this Agreement and (except to the extent such
         representations and warranties speak as of an earlier date) as of the
         Closing Date as though made on and as of the Closing Date, except
         where the failure to be so true and correct (without giving effect to
         the individual materiality qualifications and thresholds otherwise
         contained in Section 3.2 hereof) could not reasonably be expected to
         have a Material Adverse Effect on HII or as otherwise contemplated by
         this Agreement, and NorAm shall have received a certificate signed on
         behalf of HII by the Chief Executive Officer and the Chief Financial
         Officer of HII to such effect.

                 (b)      Performance of Obligations of HII, HL&P and Merger
         Sub.  HII, HL&P and Merger Sub shall have performed in all material
         respects all obligations required to be performed by them under this
         Agreement at or prior to the Closing Date, and NorAm shall have
         received a certificate signed on behalf of HII by the Chief Executive
         Officer and the Chief Financial Officer of HII to such effect.

                 (c)      Tax Opinion.  NorAm shall have received an opinion,
         in form and substance satisfactory to NorAm, dated the Closing Date, a
         copy of which will be furnished to HII, of Jones, Day, Reavis & Pogue,
         counsel to NorAm, to the effect that, if the Mergers (or in lieu
         thereof, the Alternative Merger or the Second Alternative Merger) are
         consummated in accordance with the terms of this Agreement, the NorAm
         Merger (or in lieu thereof, the Alternative Merger or the Second
         Alternative Merger) should be treated for federal income tax purposes
         as a reorganization within the meaning of Section 368(a) of the Code.
         In rendering such opinion, such counsel may receive and rely upon
         appropriate representations of fact contained in certificates of HII,
         HL&P, Merger Sub, NorAm and certain stockholders and members of
         management of NorAm, which representations are in form and substance
         reasonably satisfactory to such counsel.

                 (d)      HII Required Consents.  The HII Required Consents
         shall have been obtained, except for such HII Required Consents the
         failure of which to be obtained would not have a Material Adverse
         Effect on HII.


                                  ARTICLE VII

                           TERMINATION AND AMENDMENT

                 7.1      Termination.  This Agreement may be terminated and
the Mergers may be abandoned at any time prior to the Effective Time, whether
before or after approval of the matters





                                      -73-
<PAGE>   84

presented in connection with the Mergers by the shareholders of HII and the
stockholders of NorAm:

                 (a)      by mutual written consent of NorAm, HII and HL&P, or
         by mutual action of their respective Boards of Directors;

                 (b)      by either NorAm or HII if (i) any Governmental Entity
         shall have issued any Injunction or taken any other action permanently
         restraining, enjoining or otherwise prohibiting the consummation of
         the Mergers and such Injunction or other action shall have become
         final and nonappealable; or (ii) any required approval of the
         shareholders or stockholders of the other party shall not have been
         obtained by reason of the failure to obtain the required vote upon a
         vote held at a duly held meeting of shareholders or stockholders, as
         the case may be, or at any adjournment thereof;

                 (c)      by either NorAm or HII if the Mergers shall not have
         been consummated by the first anniversary of the date hereof (the
         "Initial Termination Date"); provided, however, that the right to
         terminate this Agreement under this Section 7.1(c) shall not be
         available to any party whose breach of any representation or warranty
         or failure to fulfill any covenant or agreement under this Agreement
         has been the cause of or resulted in the failure of the Mergers to
         occur on or before such date; and provided, further, that if on the
         Initial Termination Date the conditions to the Closing set forth in
         Section 6.1(d) shall not have been fulfilled but all other conditions
         to the Closing shall have been fulfilled or shall be capable of being
         fulfilled, then the Initial Termination Date shall be extended to
         December 31, 1997;

                 (d)      by HII if (i) for any reason NorAm fails to call and
         hold a stockholders meeting for the purpose of voting upon this
         Agreement and the NorAm Merger by February 15, 1997 (provided that the
         right to terminate this Agreement under this Section 7.1(d) shall not
         be available to HII if (x) the S-4 shall not have been declared
         effective by the SEC at least 45 days prior to the date of termination
         or (y) NorAm would be entitled to terminate this Agreement under
         Section 7.1(e)); (ii) NorAm shall have failed to comply in any
         material respect with any of the covenants or agreements contained in
         this Agreement to be complied with or performed by NorAm at or prior
         to such date of termination (provided such breach has not been cured
         within 30 days following receipt by NorAm of notice of such breach and
         is existing at the time of termination of this Agreement); (iii) any
         representation or warranty of NorAm contained in this Agreement shall
         not be true in all material respects when made or on or at the time of
         termination as if made on such date of termination (except to the
         extent it relates to a particular date) provided such breach has not
         been cured within 30 days following receipt by NorAm of notice of such
         breach and is existing at the time of termination of this Agreement,
         except where the failure to be so true and correct (without giving
         effect to the individual materiality qualifications and thresholds
         otherwise contained in Section 3.1 hereof) could not reasonably be
         expected to have a Material Adverse Effect on NorAm; (iv) after the
         date hereof there has been any Material Adverse Change with respect to
         NorAm, except for general economic changes or changes 



                                    -74-
<PAGE>   85

         that may affect the industries of NorAm or any of its Subsidiaries 
         generally; or (v) any Governmental Entity shall have issued any 
         Injunction or taken any other action permanently imposing, prohibiting
         or compelling any of the limitations, prohibitions or compulsions set
         forth in Section 6.2(f) and such Injunction or other action shall have
         become final and nonappealable;

                 (e)      by NorAm if (i) other than pursuant to Article VIII,
         the Board of Directors of HII shall have withdrawn or modified, in any
         manner which is adverse to NorAm, its recommendation or approval of
         the HII/HL&P Merger or this Agreement and the transactions
         contemplated hereby or shall have resolved to do so; (ii) other than
         pursuant to Article VIII, for any reason HII fails to call and hold a
         shareholders meeting for the purpose of voting upon this Agreement and
         the HII/HL&P Merger by February 15, 1997 (provided that the right to
         terminate this Agreement under this Section 7.1(e) shall not be
         available to NorAm if (x) the S-4 shall not have been declared
         effective by the SEC at least 45 days prior to the date of termination
         or (y) HII would be entitled to terminate this Agreement under Section
         7.1(d) or (f)); (iii) HII, HL&P or Merger Sub shall have failed to
         comply in any material respect with any of the covenants or agreements
         contained in this Agreement to be complied with or performed by it at
         or prior to such date of termination (provided such breach has not
         been cured within 30 days following receipt by HII of notice of such
         breach and is existing at the time of termination of this Agreement);
         (iv) any representation or warranty of HII or HL&P contained in this
         Agreement shall not be true in all material respects when made or on
         or at the time of termination as if made on such date of termination
         (except to the extent it relates to a particular date) provided such
         breach has not been cured within 30 days following receipt by HII of
         notice of such breach and is existing at the time of termination of
         this Agreement, except where the failure to be so true and correct
         (without giving effect to the individual materiality qualifications
         and thresholds otherwise contained in Section 3.2 hereof) could not
         reasonably be expected to have a Material Adverse Effect on HII; or
         (v) after the date hereof there has been any Material Adverse Change
         with respect to HII, except for general economic changes or changes
         that may affect the industries of HII or any of its Subsidiaries
         generally;

                 (f)      by HII, if (i) the Board of Directors of NorAm shall
         have withdrawn or modified, in any manner which is adverse to HII,
         HL&P or Merger Sub, its recommendation or approval of the NorAm Merger
         or this Agreement and the transactions contemplated hereby or shall
         have resolved to do so, or (ii) the Board of Directors of NorAm shall
         have recommended to the stockholders of NorAm any Acquisition Proposal
         or any transaction described in the definition of Acquisition
         Proposal, or shall have resolved to do so; or

                 (g)      by NorAm, prior to approval of this Agreement by
         NorAm's stockholders, if NorAm shall exercise the right specified in
         clause (ii) of Section 4.3(a); provided that NorAm may not effect such
         termination pursuant to this Section 7.1(g) unless and until (i) NorAm
         gives HII at least one week's prior notice of its intention to effect
         such termination pursuant to this Section 7.1(g); (ii) during such
         week, NorAm shall, and shall cause its respective financial and legal
         advisors to, negotiate with HII to make such adjustments in 



                                    -75-

<PAGE>   86

         the terms and conditions of this Agreement as would enable NorAm to
         proceed with the transactions contemplated herein; and (iii) NorAm
         pays the amounts required by Section 7.2 concurrently with such
         termination.

                 7.2      Effect of Termination.

                 (a)      In the event of termination of this Agreement by any
         party hereto as provided in Section 7.1, this Agreement shall
         forthwith become void and there shall be no liability or obligation on
         the part of HII, HL&P, Merger Sub or NorAm except (i) with respect to
         this Section 7.2, the second and third sentences of Section 5.4, and
         Section 9.1, and (ii) to the extent that such termination results from
         the willful breach (except as provided in Section 9.8) by a party
         hereto of any of its representations or warranties or of any of its
         covenants or agreements contained in this Agreement.

                 (b)      If (i) HII or NorAm terminates this Agreement
         pursuant to Section 7.1(f)(ii) or 7.1(g) or (ii) HII terminates this
         Agreement pursuant to Section 7.1(b)(ii) or 7.1(f)(i) and at the time
         of such termination or prior to the NorAm Stockholders' Meeting there
         shall have been an Acquisition Proposal, NorAm shall, on the day of
         such termination, pay HII a fee of $75 million in cash by wire
         transfer of immediately available funds to an account designated by
         HII.

                 (c)      If HII terminates this Agreement pursuant to Section
         7.1(d)(i) or 7.1(d)(ii), in either case as a result of a willful
         breach of this Agreement by NorAm, and Section 7.2(b)(ii) shall not
         apply, NorAm shall, on the day of such termination, pay HII a fee of
         $35 million in cash by wire transfer of immediately available funds to
         an account designated by HII.

                 (d)      If HII terminates this Agreement pursuant to Section
         7.1(b)(ii) or 7.1(f)(i) and Section 7.2(b)(ii) shall not apply, NorAm
         shall, on the day of such termination, pay HII a fee of $10 million in
         cash by wire transfer of immediately available funds to an account
         designated by HII.

                 (e)      If NorAm terminates this Agreement pursuant to
         Section 7.1(e)(ii) or (iii), in either case as result of a willful
         breach of this Agreement by HL&P, HII or Merger Sub, HII shall, on the
         day of such termination, pay NorAm a fee of $35 million in cash by
         wire transfer of immediately available funds to an account designated
         by NorAm.

                 (f)      If NorAm terminates this Agreement pursuant to
         Section 7.1(b)(ii) or 7.1(e)(i), HII shall, on the day of such
         termination, pay NorAm a fee of $10 million in cash by wire transfer
         of immediately available funds to an account designated by NorAm.

                 (g)      If within 12 months of any termination described in
         Section 7.2(c) or (d) above, NorAm agrees to or consummates an
         Acquisition Proposal, then upon the signing of a definitive agreement
         relating to such an Acquisition Proposal, or, if no such agreement is



                                    -76-

<PAGE>   87

         signed, then at the closing of such Acquisition Proposal, NorAm shall
         pay HII a fee equal to $75 million in cash minus any amounts as may
         have been previously paid by NorAm pursuant to this Section 7.2 by
         wire transfer of immediately available funds to an account designated
         by HII.

                 7.3      Expenses.  The parties agree that the agreements
contained in Section 7.2 are an integral part of the transactions contemplated
by this Agreement and constitute liquidated damages and not a penalty.
Notwithstanding anything to the contrary contained in Section 7.2, if one party
fails to promptly pay to the other any fee due under Section 7.2, in addition
to any amounts paid or payable pursuant to such section, the defaulting party
shall pay the costs and expenses (including legal fees and expenses) in
connection with any action, including the filing of any lawsuit or other legal
action, taken to collect payment, together with interest on the amount of any
unpaid fee at the publicly announced prime rate of Citibank, N.A. from the date
such fee was required to be paid.

                 7.4      Amendment.  This Agreement may be amended by the
parties hereto, by action taken or authorized by their respective Boards of
Directors, at any time before or after approval of the matters presented in
connection with the Mergers by the shareholders of HII and/or the stockholders
of NorAm, but, after any such approval, no amendment shall be made which by law
requires further approval by such shareholders or stockholders without such
further approval.  This Agreement may not be amended except by an instrument in
writing signed on behalf of each of the parties hereto.

                 7.5      Extension; Waiver.  At any time prior to the
Effective Time, the parties hereto, by action taken or authorized by their
respective Boards of Directors, may, to the extent legally allowed: (i) extend
the time for the performance of any of the obligations or other acts of the
other parties hereto; (ii) waive any inaccuracies in the representations and
warranties contained herein or in any document delivered pursuant hereto; and
(iii) waive compliance with any of the agreements or conditions contained
herein.  Any agreement on the part of a party hereto to any such extension or
waiver shall be valid only if set forth in a written instrument signed on
behalf of such party.

                                ARTICLE VIII

                             ALTERNATIVE MERGER

                 8.1      Alternative Merger.

                 (a)      If HL&P, after consultation with its legal counsel,
         determines that upon consummation of the transactions contemplated
         herein the HII/HL&P Merger Surviving Corporation would not be an
         exempt "public utility holding company" under Section 3(a)(2) of the
         1935 Act, or any rules or regulations promulgated by the SEC under the
         1935 Act, then notwithstanding the other provisions of this Agreement,
         NorAm and HII shall be merged with and into HL&P, with HL&P being the
         surviving corporation (the "Alternative 



                                    -77-

<PAGE>   88

         Merger"), and the other provisions of Sections 8.1 through 8.4 shall
         be applicable to NorAm, HII, HL&P and the Alternative Merger. 
         Such determination may be made before or after (i) NorAm's
         stockholders approve this Agreement and the NorAm Merger (or in lieu
         thereof and only in the circumstances set forth in this Section 8.1 or
         Section 8.5, the Alternative Merger or the Second Alternative Merger,
         respectively) or (ii) HII's shareholders approve this Agreement, the
         HII/HL&P Merger and the issuance of the Stock Consideration in the
         NorAm Merger (or in lieu of the Mergers and only in the circumstances
         set forth in this Section 8.1 or Section 8.5, the Alternative Merger
         or the Second Alternative Merger, respectively).

                 (b)      At the Alternative Merger Effective Time (as
         hereinafter defined), each of NorAm and HII shall be merged with and
         into HL&P in accordance with the TBCA and the DGCL.  As soon as
         practicable at or after the Closing, articles of merger, prepared and
         executed in accordance with the relevant provisions of the TBCA, with
         respect to the Alternative Merger (the "Alternative Merger Articles of
         Merger"), shall be filed with the Secretary of State of the State of
         Texas and a certificate of merger, prepared and executed in accordance
         with the relevant provisions of the DGCL, with respect to the
         Alternative Merger (the "Alternative Merger Certificate of Merger"),
         shall be filed with the Secretary of State of the State of Delaware.
         The Alternative Merger Articles of Merger and the Alternative Merger
         Certificate of Merger shall state that the Alternative Merger shall
         become effective immediately upon the later of (i) the filing of the
         Alternative Merger Articles of Merger with the Secretary of State of
         the State of Texas and (ii) the filing of the Alternative Merger
         Certificate of Merger with the Secretary of State of the State of
         Delaware, or, if agreed to by HL&P, HII and NorAm, at such time
         thereafter as is provided in the Alternative Merger Articles of Merger
         and the Alternative Merger Certificate of Merger.  The Alternative
         Merger shall become effective at the later of (i) the time of the
         issuance of the certificate of merger with respect to the Alternative
         Merger by the Secretary of State of the State of Texas and (ii) the
         time that the Alternative Merger Certificate of Merger shall be duly
         filed with the Secretary of State of the State of Delaware or, if a
         later effective time was provided in the Alternative Merger Articles
         of Merger and the Alternative Merger Certificate of Merger, such later
         time (the "Alternative Merger Effective Time").

                 8.2      Effects of the Alternative Merger.

                 (a)      At the Alternative Merger Effective Time: (i) each of
         NorAm and HII shall be merged with and into HL&P, the separate
         existence of NorAm and HII shall cease and HL&P shall continue as the
         surviving corporation (NorAm, HII and HL&P are sometimes referred to
         herein as the "Alternative Merger Constituent Corporations" and HL&P
         is sometimes referred to herein as the "Alternative Merger Surviving
         Corporation"); (ii) Article I and Article VI of the Restated Articles
         of Incorporation of HL&P shall be amended as set forth in Exhibit A
         hereto and, as so amended, such Restated Articles of Incorporation
         shall be the Articles of Incorporation of the Alternative Merger
         Surviving Corporation; and (iii) the Bylaws of HII as in effect
         immediately prior to the Alternative Merger Effective Time shall be
         the Bylaws of the Alternative Merger Surviving Corporation.



                                    -78-


<PAGE>   89

                 (b)      The directors and officers of HII at the Alternative
         Merger Effective Time shall, from and after the Alternative Merger
         Effective Time, be the initial directors and officers of the
         Alternative Merger Surviving Corporation and shall serve until their
         successors have been duly elected or appointed and qualified or until
         their earlier death, resignation or removal in accordance with the
         Alternative Merger Surviving Corporation's Articles of Incorporation
         and Bylaws.

                 (c)      The Alternative Merger shall have the effects set
         forth in this Section 8.2 and the applicable provisions of the TBCA
         and the DGCL.

                 8.3      Effect of the Alternative Merger on the Capital Stock
of the Alternative Merger Constituent Corporations; Exchange of Certificates.
All of the provisions of this Agreement shall apply to the Alternative Merger,
except that (i) references to the HII/HL&P Merger Effective Time, the NorAm
Merger Effective Time and the Effective Time shall be deemed to be references
to the Alternative Merger Effective Time, (ii) references to the HII/HL&P
Merger Surviving Corporation and the NorAm Merger Surviving Corporation shall
be deemed to be references to the Alternative Merger Surviving Corporation and
(iii) references to the HII/HL&P Merger and the NorAm Merger shall be deemed to
be references to the Alternative Merger.

                 8.4      Amendment to This Agreement.  If, pursuant to Section
8.1(a), it is decided that the Alternative Merger should be consummated, the
parties hereto shall forthwith execute an appropriate amendment to this
Agreement, which amendment (i) shall reflect any and all changes required to be
made to this Agreement so that the representations, warranties, covenants and
agreements of the parties contained herein relating to (x) the HII/HL&P Merger
or the NorAm Merger or (y) the conduct of the HII/HL&P Merger Surviving
Corporation or the NorAm Merger Surviving Corporation after the relevant
Effective Time, shall apply to the Alternative Merger and the Alternative
Merger Surviving Corporation, respectively, and (ii) shall not require further
approval of the stockholders of NorAm or of the shareholders of HII.

                 8.5      The Second Alternative Merger.

                 (a)      The parties hereto acknowledge that in the absence of
         applicable regulatory constraints under the 1935 Act, it would be
         preferable for NorAm to merge with and into Merger Sub, with Merger
         Sub being the surviving corporation, and for the HII/HL&P Merger not
         to be effected.  Accordingly, if, at the time at which all of the
         conditions to the parties' respective obligations to consummate the
         Mergers have been satisfied or waived, no such constraints under the
         1935 Act shall require the Mergers to occur, then notwithstanding the
         other provisions of this Agreement, the parties hereto shall effect
         the Second Alternative Merger in lieu of the Mergers (and in lieu of
         the Alternative Merger), and other provisions of Sections 8.5 through
         8.8 shall be applicable to NorAm, HII, HL&P and the Second Alternative
         Merger.

                 (b)      At the Second Alternative Merger Effective Time (as
         hereinafter defined), NorAm shall be merged with and into Merger Sub
         in accordance with the DGCL.  As soon 



                                    -79-

<PAGE>   90

         as practicable at or after the Closing, a certificate of merger,
         prepared and executed in accordance with the relevant provisions of
         the DGCL, with respect to the Second Alternative Merger (the "Second
         Alternative Merger Certificate of Merger"), shall be filed with the
         Secretary of State of the State of Delaware.  The Second Alternative
         Merger Certificate of Merger shall state that the Second Alternative
         Merger shall become effective immediately upon the filing of the
         Second Alternative Merger Certificate of Merger with the Secretary of
         State of the State of Delaware, or, if agreed to by HII and NorAm, at
         such time thereafter as is provided in the Second Alternative Merger
         Certificate of Merger. The Second Alternative Merger shall become
         effective at the time that the Second Alternative Merger Certificate
         of Merger shall be duly filed with the Secretary of State of the State
         of Delaware or, if a later effective time was provided in the Second
         Alternative Merger Certificate of Merger, such later time (the "Second
         Alternative Merger Effective Time").

                 8.6      Effects of the Second Alternative Merger.

                 (a)      At the Second Alternative Merger Effective Time: (i)
         NorAm shall be merged with and into Merger Sub, the separate existence
         of NorAm shall cease and Merger Sub shall continue as the surviving
         corporation (NorAm and Merger Sub are sometimes referred to herein as
         the "Second Alternative Merger Constituent Corporations" and Merger
         Sub is sometimes referred to herein as the "Second Alternative Merger
         Surviving Corporation"); (ii) the Certificate of Incorporation of
         Merger Sub shall be amended to change the name of Merger Sub to "NorAm
         Energy Corp.," and, as so amended, such Certificate of Incorporation
         shall be the Certificate of Incorporation of the Second Alternative
         Merger Surviving Corporation; and (iii) the Bylaws of Merger Sub as in
         effect immediately prior to the Second Alternative Merger Effective
         Time shall be the Bylaws of the Second Alternative Merger Surviving
         Corporation.

                 (b)      The directors of Merger Sub at the Second Alternative
         Merger Effective Time shall, from and after the Second Alternative
         Merger Effective Time, be the initial directors of the Second
         Alternative Merger Surviving Corporation and the officers of NorAm at
         the Second Alternative Merger Effective Time shall, from and after the
         Second Alternative Merger Effective Time, be the initial officers of
         the Second Alternative Merger Surviving Corporation, and such
         directors and officers shall serve until their successors have been
         duly elected or appointed and qualified or until their earlier death,
         resignation or removal in accordance with the Second Alternative
         Merger Surviving Corporation's Certificate of Incorporation and
         Bylaws.

                 (c)      The Second Alternative Merger shall have the effects
         set forth in this Section 8.6 and the applicable provisions of the
         DGCL.

                 8.7      Effect of the Second Alternative Merger on the
Capital Stock of the Second Alternative Merger Constituent Corporations;
Exchange of Certificates.  All of the provisions of this Agreement shall apply
to the Second Alternative Merger, except that (i) references to the HII/HL&P
Merger Effective Time, the NorAm Merger Effective Time and the Effective Time
shall 



                                    -80-


<PAGE>   91

be deemed to be references to the Second Alternative Merger Effective Time,
(ii) references to the HII/HL&P Merger Surviving Corporation and the NorAm
Merger Surviving Corporation shall be deemed to be references to the Second
Alternative Merger Surviving Corporation, (iii) references to the HII/HL&P
Merger and the NorAm Merger shall be deemed to be references to the Second
Alternative Merger and (iv) references to HL&P Common Stock shall be deemed to
be references to HII Common Stock.

                 8.8      Amendment to This Agreement.  If, pursuant to Section
8.5(a), it is decided that the Second Alternative Merger should be consummated,
the parties hereto shall forthwith execute an appropriate amendment to this
Agreement, which amendment (i) shall reflect any and all changes required to be
made to this Agreement so that the representations, warranties, covenants and
agreements of the parties contained herein relating to (x) the HII/HL&P Merger
or the NorAm Merger or (y) the conduct of the HII/HL&P Merger Surviving
Corporation or the NorAm Merger Surviving Corporation after the relevant
Effective Time, shall apply to the Second Alternative Merger and the Second
Alternative Merger Surviving Corporation, respectively, and (ii) shall not
require further approval of the stockholders of NorAm or of the shareholders of
HII.

                                   ARTICLE IX

                               GENERAL PROVISIONS

                 9.1      Payment of Expenses.  Each party hereto shall pay its
own expenses incident to preparing for entering into and carrying out this
Agreement and the consummation of the transactions contemplated hereby, whether
or not the Mergers shall be consummated, except that the filing fees with
respect to the Joint Proxy Statement and the S-4 shall be shared equally by
HL&P and NorAm.

                 9.2      Nonsurvival of Representations, Warranties and
Agreements.  None of the representations, warranties and agreements in this
Agreement or in any instrument delivered pursuant to this Agreement shall
survive the Effective Time and any liability for breach or violation thereof
shall terminate absolutely and be of no further force and effect at and as of
the Effective Time, except for the agreements contained in Article II, Sections
5.10 through 5.14 and 7.2 and Articles VIII and IX, the agreements delivered
pursuant to Section 5.8 and the representations, covenants and agreements
contained in Section 5.18.  The Confidentiality Agreements shall survive the
execution and delivery of this Agreement, and the provisions of the
Confidentiality Agreements shall apply to all information and material
delivered hereunder.

                 9.3      Notices.  Any notice or communication required or
permitted hereunder shall be in writing and either delivered personally,
telegraphed or telecopied or sent by certified or registered mail, postage
prepaid, and shall be deemed to be given, dated and received when so delivered
personally, telegraphed or telecopied or, if mailed, five business days after
the date of mailing to the following address or telecopy number, or to such
other address or addresses as such person may subsequently designate by notice
given hereunder:





                                      -81-
<PAGE>   92

                          (a)     if to HII, HL&P or Merger Sub, to:

                                  Houston Industries Incorporated
                                  Houston Industries Plaza
                                  1111 Louisiana Street
                                  Houston, Texas 77002-5231
                                  Attention: Chief Executive Officer

                                  with copies to:

                                  Hugh Rice Kelly
                                  Senior Vice President and General Counsel
                                  Houston Industries Incorporated
                                  Houston Industries Plaza
                                  1111 Louisiana Street
                                  Houston, Texas 77002-5231

                                  Stephen A. Massad
                                  Baker & Botts, L.L.P.
                                  One Shell Plaza
                                  910 Louisiana Street
                                  Houston, Texas 77002-4995

                            and (b) if to NorAm, to:

                                  NorAm Energy Corp.
                                  1600 Smith Street
                                  11th Floor
                                  Houston, Texas 77002
                                  Attention: Chief Executive Officer

                          with copies to:

                                  Hubert Gentry, Jr.
                                  Senior Vice President and General Counsel
                                  NorAm Energy Corp.
                                  1600 Smith Street
                                  11th Floor
                                  Houston, Texas 77002





                                      -82-
<PAGE>   93
                                  Gerry D. Osterland
                                  Jones, Day, Reavis & Pogue
                                  555 West Fifth Street
                                  Suite 4600
                                  Los Angeles, California 90013-1025

                 9.4      Interpretation.  When a reference is made in this
Agreement to Sections, such reference shall be to a Section of this Agreement
unless otherwise indicated.  The table of contents, glossary of defined terms
and headings contained in this Agreement are for reference purposes only and
shall not affect in any way the meaning or interpretation of this Agreement.
Whenever the words "include," "includes" or "including" are used in this
Agreement, they shall be deemed to be followed by the words "without
limitation."  Unless the context otherwise requires, "or" is disjunctive but
not necessarily exclusive, and words in the singular include the plural and in
the plural include the singular.

                 9.5      Counterparts.  This Agreement may be executed in two
or more counterparts, all of which shall be considered one and the same
agreement and shall become effective when two or more counterparts have been
signed by each of the parties and delivered to the other parties, it being
understood that all parties need not sign the same counterpart.

                 9.6      Entire Agreement; No Third Party Beneficiaries.  This
Agreement (together with the Confidentiality Agreements and any other documents
and instruments referred to herein) (a) constitutes the entire agreement and
supersedes all prior agreements and understandings, both written and oral,
among the parties with respect to the subject matter hereto and (b) except as
provided in Sections 5.9 through 5.12, is not intended to confer upon any
person other than the parties hereto any rights or remedies hereunder.
Notwithstanding the foregoing or any provision in this Agreement to the
contrary, each individual who is an employee or former employee of NorAm or any
NorAm Affiliate at the Effective Time shall be a third party beneficiary with
respect to the provisions of Sections 5.9 through 5.11 relating to such
employee's compensation or benefits with full authority to enforce such
provision as if such employee or former employee were a party to this
Agreement.

                 9.7      Governing Law.  This Agreement shall be governed and
construed in accordance with the laws of the State of Texas, without giving
effect to the principles of conflicts of law thereof, except to the extent the
DGCL is required to govern the NorAm Merger, the Alternative Merger or the
Second Alternative Merger, as the case may be.

                 9.8      No Remedy in Certain Circumstances.  Each party
agrees that, should any court or other competent authority hold any provision
of this Agreement or part hereof to be null, void or unenforceable, or order
any party to take any action inconsistent herewith or not to take an action
consistent herewith or required hereby, the validity, legality and
enforceability of the remaining provisions and obligations contained or set
forth herein shall not in any way be affected or impaired thereby, unless the
foregoing inconsistent action or the failure to take an action constitutes a
material breach of this Agreement or makes this Agreement impossible to
perform, in





                                      -83-
<PAGE>   94

which case this Agreement shall terminate pursuant to Article VII hereof.
Except as otherwise contemplated by this Agreement, to the extent that a party
hereto took an action inconsistent herewith or failed to take action consistent
herewith or required hereby pursuant to an order or judgment of a court or
other competent authority, such party shall not incur any liability or
obligation unless such party breached its obligations under Section 5.7 or did
not in good faith seek to resist or object to the imposition or entering of
such order or judgment.

                 9.9      Assignment.  Neither this Agreement nor any of the
rights, interests or obligations hereunder shall be assigned by any of the
parties hereto (whether by operation of law or otherwise) without the prior
written consent of the other parties, except that Merger Sub may assign, in its
sole discretion, any or all of its rights, interests and obligations hereunder
to any newly formed, direct wholly owned Subsidiary of HII, which Subsidiary
would then be substituted for Merger Sub for purposes of this Agreement.
Subject to the preceding sentence, this Agreement will be binding upon, inure
to the benefit of and be enforceable by the parties and their respective
successors and assigns.





                                      -84-
<PAGE>   95
                 IN WITNESS WHEREOF, each party has caused this Agreement to be
signed by its respective officers thereunto duly authorized, all as of the date
first written above.


                                      HOUSTON INDUSTRIES INCORPORATED


                                      By:  /s/ DON D. JORDAN
                                          -------------------------------------
                                           Don D. Jordan
                                           Chairman and Chief Executive Officer



                                      HOUSTON LIGHTING & POWER COMPANY


                                      By:  /s/ DON D. JORDAN
                                          -------------------------------------
                                           Don D. Jordan
                                           Chairman and Chief Executive Officer


                                      HI MERGER, INC.


                                      By:  /s/ DON D. JORDAN
                                          -------------------------------------
                                           Don D. Jordan
                                           Chairman and Chief Executive Officer


                                      NORAM ENERGY CORP.


                                      By:  /s/ T. MILTON HONEA
                                          -------------------------------------
                                           T. Milton Honea
                                           Chairman of the Board, President and
                                             Chief Executive Officer





                                      -85-
<PAGE>   96
                                                                       Exhibit A

                Amendments to Restated Articles of Incorporation
                                       of
                        Houston Lighting & Power Company


                 The following amendments to the Restated Articles of
Incorporation of HL&P will be made, subject to shareholder approval, at the
HII/HL&P Merger Effective Time or the Alternative Merger Effective Time, as the
case may be, in order to (i) change the name of the HII/HL&P Merger Surviving
Corporation or the Alternative Merger Surviving Corporation, as the case may
be, (ii) change the authorized capital stock of the HII/HL&P Merger Surviving
Corporation or the Alternative Merger Surviving Corporation, as the case may
be, and (iii) change the terms of the common stock of the HII/HL&P Merger
Surviving Corporation or the Alternative Merger Surviving Corporation, as the
case may be.

                 FIRST:  The first amendment alters or changes Article I of the
Restated Articles of Incorporation and the full text of such altered article is
as follows:

                 "The name of this corporation is 'Houston Industries 
Incorporated.'"

                 SECOND:  The second amendment alters or changes the first
paragraph of Article VI of the Restated Articles of Incorporation and the full
text of such altered paragraph is as follows:

                 "The number of shares of the total authorized capital stock of
the Company is 410,000,000(1) shares, of which 10,000,000 shares are classified
as Preferred Stock, without par value, and the balance of 400,000,000(1) shares
are classified as Common Stock, without par value."

                 THIRD:  The third amendment alters or changes "Division C--The
Common Stock" of Article VI of the Restated Articles of Incorporation and the
full text of such altered division is as follows:

                 "1.      Dividends.  Dividends may be paid on the Common Stock
out of any assets of the Company available for such dividends after full
cumulative dividends on all outstanding shares of capital stock of all series
ranking senior to the Common Stock in respect of dividends and liquidation
rights (referred to in this Division C as "stock ranking senior to the Common
Stock") have been paid, or declared and a sum sufficient for the payment
thereof set apart, for all past quarterly dividend periods, and after or
concurrently with making payment of or provision for dividends on the stock
ranking senior to the Common Stock for the then current quarterly dividend
period.

__________________

(1)  or such other number as may be permitted by Section 4.2(a)(iii) and Section
     4.2(b).



                                      -86-

<PAGE>   97
                 2.      Distribution of Assets.  In the event of any 
liquidation, dissolution or winding up of the Company, or any reduction or
decrease of its capital stock resulting in a distribution of assets to the
holders of its Common Stock, after there shall have been paid to or set aside
for the holders of the stock ranking senior to the Common Stock the full
preferential amounts to which they are respectively entitled, the holders of
the Common Stock shall be entitled to receive, pro rata, all of the remaining
assets of the Company available for distribution to its stockholders.  The
Board of Directors, by vote of a majority of the members thereof, may
distribute in kind to the holders of the Common Stock such remaining assets of
the Company, or may sell, transfer or otherwise dispose of all or any of the
remaining property and assets of the Company to any other corporation or other
purchaser and receive payment therefor wholly or partly in cash or property,
and/or in stock of any such corporation, and/or in obligations of such
corporation or other purchaser, and may sell all or any part of the
consideration received therefor and distribute the same or the proceeds thereof
to the holders of the Common Stock.

                 3.       Voting Rights.  Subject to the voting rights
expressly conferred under prescribed conditions upon the stock ranking senior
to the Common Stock, the holders of the Common Stock shall exclusively possess
full voting power for the election of directors and for all other purposes."





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