EXHIBIT 10(a)
                         HOUSTON INDUSTRIES INCORPORATED
                              MASTER SAVINGS TRUST

               (As Amended and Restated Effective January 1, 1994)

                                 FIRST AMENDMENT

            Houston Industries Incorporated, a Texas corporation (the
"Company"), having established the Houston Industries Incorporated Master
Savings Trust, as amended and restated effective January 1, 1994 (the "Trust"),
and having reserved the right to amend the Trust under Section 10.4 thereof,
does hereby amend the Trust as follows, effective May 1, 1995:

            1. The first sentence of the second paragraph of Section 4.1 is
hereby amended to read as follows:

            "In accordance with normal pricing methods, assets shall be valued
      by the Trustee at their fair market values at the close of business on the
      Valuation Date, or, in the absence of readily ascertainable fair market
      values, at such fair values as the Trustee shall in good faith determine."

            2. Section 4.3 is hereby amended in its entirety to read as follows:

            "4.3  AUTHORITY OF COMPANY AND COMMITTEE:  When the Master Trust is
      the trust under the plan of any Affiliated Corporation, such Affiliated
      Corporation shall be bound by the decisions, instructions, actions and
      directions of the Company, Committee, Investment Managers, and named
      fiduciaries (as such term is defined in Section 5.6 of the Master Trust)
      under this Agreement and the Trustee shall be indemnified by the Company
      and such Affiliated Corporation for such expenses and liabilities incurred
      by relying upon such decisions, instructions, actions or directions or
      where such losses or expenses were incurred by the Trustee due to the
      failure of such parties to carry out their responsibilities under the Plan
      and Master Trust. The Trustee shall not be required to give notice to or
      obtain the consent of any such Affiliated Corporation with respect to any
      action which is taken by the Trustee pursuant to this Agreement."

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            3. Section 5.1 is hereby amended by adding the following sentence to
the end thereof:

            "The Trustee shall transfer assets to and from each Investment Fund
      as directed by the Committee or its agent."

            4. The last sentence of Section 5.2(a) is hereby amended to read as
follows:

            "Except in the case of fractional shares received in any stock
      dividend, stock split or other recapitalization, or as necessary to make
      any distribution or payment from the Trust Fund or any transfer among the
      Investment Funds, the Trustee shall have no power or duty to sell or
      otherwise dispose of any stock acquired for Fund A."

            5. The fourth sentence of the second paragraph of Section 5.2(f) is
hereby amended to read as follows:

            "Subject to contrary instructions, the Trustee shall invest cash
      held by it in an account subject to the management of an Investment
      Manager in short-term obligations, either separately or by investment
      collectively with funds of other pension and profit-sharing trusts exempt
      from tax under Code Section 501(a) by reason of qualifying under Code
      Section 401(a) through the medium of any common, collective, commingled or
      group trust fund which has been or hereafter may be established by the
      Trustee or by any other bank or trust company in the United States, the
      instrument or instruments establishing such trust fund or funds, as
      amended from time to time, being made a part of this Agreement so long as
      any portion of the Master Trust Fund shall be invested through the medium
      thereof."

            6. The last sentence of the second paragraph of Section 5.2(f) is
hereby amended to read as follows:

            "Any such collective investment shall be managed by the Trustee in
      its sole discretion."

            7. Section 5.6 is hereby amended by adding the following paragraph
to the end thereof:

            "C. Except for the short-term investment of cash, the Company has
      limited the investment power of the Trustee in Investment Fund A to the
      purchase and holding of Company Stock. The Trustee shall not be liable for
      the purchase, retention, voting, tender or sale of Company Stock in
      accordance with the provisions of Sections 5.2(a) and 5.6 hereof, and the
      Company (which has the
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      authority to do so under the laws of the state of its incorporation)
      agrees to indemnify Trustee from any liability, loss and expense,
      including reasonable legal fees and expenses, which Trustee may sustain by
      reason of the purchase, retention, voting, tender or sale of Company Stock
      in accordance with the provisions of Sections 5.2(a) and 5.6 hereof;
      provided, however, that the foregoing liability and indemnification
      provisions shall not apply to the extent that such liability, loss or
      expense arises from the Trustee's willful misconduct, bad faith or
      negligence in carrying out its ministerial functions under Sections 5.2(a)
      and 5.6. This paragraph shall survive the termination of this Agreement."

            8. Section 5.7(i) is hereby amended in its entirety to read as
follows:

            "(i) To provide temporary advances to cover overdrafts, and in
      addition, with the prior approval of the Committee, to borrow money from
      others, to issue its promissory note or notes therefor, and to secure the
      repayment thereof by pledging any property in its possession."

            9. Section 9.4 is hereby amended in its entirety to read as follows:

            "9.4 TRANSFER OF MASTER TRUST FUND TO SUCCESSOR: Upon the
      appointment of a successor Trustee, the resigning or removed Trustee shall
      transfer and deliver the Master Trust Fund and the records relating
      thereto to such successor Trustee, after reserving such reasonable amount
      as it shall deem necessary to provide for its expenses in the settlement
      of its accounts, the amount of any compensation due it and any sums
      chargeable against the Master Trust Fund for which it may be liable, but
      if the sums so reserved are not sufficient for such purposes, the
      resigning or removed Trustee shall be entitled to reimbursement for any
      deficiency from the Trust Fund and from the Company and each Affiliated
      Corporation which has a Participating Plan, who shall be jointly and
      severally liable therefor."

            IN WITNESS WHEREOF, Houston Industries Incorporated has caused these
presents to be executed by its duly authorized officers in a number of copies,
all of which shall
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constitute one and the same instrument, which may be sufficiently evidenced by
any executed copy hereof, this 27th day of April, 1995, but effective May 1,
1995. HOUSTON INDUSTRIES INCORPORATED

                                      By   D. D. SYKORA
                                           D. D. Sykora,
                                           President and Chief Operating Officer
ATTEST:

     CHRISTIAN SCHLEY
Assistant Corporate Secretary

            THE NORTHERN TRUST COMPANY, as successor trustee, effective May 1,
1995, under the Houston Industries Incorporated Master Savings Trust, as amended
and restated effective January 1, 1994 (the "Trust"), hereby consents to and
approves of the foregoing First Amendment to the Trust, this 26th day of April,
1995, but effective May 1, 1995.
                                      THE NORTHERN TRUST COMPANY

                                      By   BRUCE G. HENIKEN
ATTEST:                                     Vice President

    JOHN H. ST. LAURENT
Assistant Corporate Secretary
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