COMMON SECURITIES GUARANTEE AGREEMENT


                            CALENERGY COMPANY, INC.


                          Dated as of April 10, 1996










    







                     COMMON SECURITIES GUARANTEE AGREEMENT


                  This COMMON SECURITIES GUARANTEE AGREEMENT (the "Common
Securities Guarantee"), dated as of April 10, 1996, is executed and delivered
by CalEnergy Company, Inc., a Delaware corporation (the "Guarantor"), for the
benefit of the Holders (as defined herein) from time to time of the Common
Securities (as defined in the Declaration) of CalEnergy Capital Trust, a
Delaware business trust (the "Issuer").

                  WHEREAS, pursuant to an Amended and Restated Declaration of
Trust (the "Declaration"), dated as of April 4, 1996, among the Trustees of
the Issuer named therein, the Guarantor, as sponsor, and the holders from time
to time of undivided beneficial interests in the assets of the Issuer, the
Issuer is issuing on the date hereof 61,856 Common Securities, having an
aggregate stated liquidation amount of $3,092,800 (plus up to an additional
7,423 Common Securities, having an aggregate liquidation amount of $371,150,
to meet the capital requirements of the Trust in the event of an issuance of
Additional Preferred Securities (as such term is defined in the Declaration)),
designated the 6 1/4% Convertible Common Securities;

                  WHEREAS, as incentive for the Holders to purchase the Common
Securities, the Guarantor desires irrevocably and unconditionally to agree, to
the extent set forth in this Common Securities Guarantee, to pay to the
Holders of the Common Securities the Guarantee Payments (as defined herein)
and to make certain other payments on the terms and conditions set forth
herein; and

                  WHEREAS, the Guarantor is also executing and delivering a
guarantee agreement in substantially identical terms to this Common Securities
Guarantee for the benefit of the holders of the Preferred Securities (the
"Preferred Securities Guarantee") except that if an Event of Default (as
defined in the Indenture), has occurred and is continuing, the rights of
holders of the Common Securities to receive Guarantee Payments under this
Common Securities Guarantee are subordinated to the rights of Holders of
Preferred Securities to receive Guarantee Payments under the Preferred
Securities Guarantee.

                  NOW, THEREFORE, in consideration of the purchase by each
Holder of Common Securities, which purchase the Guarantor hereby agrees shall
benefit the Guarantor, the Guarantor executes and delivers this Common
Securities Guarantee for the benefit of the Holders.









    








                  In this Common Securities Guarantee, unless the context
otherwise requires, the terms set forth below shall have the following
meanings.

  Capitalized terms used in this Common Securities Guarantee but not defined
in the preamble above have the respective meanings assigned to them in this
Section 1.1;

  Terms defined in the Declaration as at the date of execution of this Common
Securities Guarantee have the same meaning when used in this Common Securities
Guarantee unless otherwise defined in this Common Securities Guarantee.

  A term defined anywhere in this Common Securities Guarantee has
the same meaning throughout;

  All references to "the Common Securities Guarantee" or "this Common
Securities Guarantee" are to this Common Securities Guarantee as modified,
supplemented or amended from time to time;

  All references in this Common Securities Guarantee to Articles and Sections
are to Articles and Sections of this Common Securities Guarantee unless
otherwise specified; and

  A reference to the singular includes the plural and vice versa.

                  "Guarantee Payments" shall mean the following payments or
distributions, without duplication, with respect to the Common Securities, to
the extent not paid or made by the Issuer: (i) any accrued and unpaid
Distributions which are required to be paid on such Common Securities to the
extent the Issuer shall have funds available therefore, (ii) the amount
payable upon redemption to the extent the Issuer has funds available therefor,
with respect to any Common Securities called for redemption by the Issuer, and
(iii) upon a voluntary or involuntary dissolution, winding-up or termination
of the Issuer (other than in connection with the distribution of Debentures to
the Holders in exchange for Common Securities as provided in the Declaration),
the lesser of (a) the aggregate of the liquidation amount and all accrued and
unpaid Distributions on the Common Securities to the date of payment, to the
extent the Issuer has funds available therefor, and (b) the amount of assets
of the Issuer remaining available for distribution to Holders in liquidation
of the Issuer (in either case, the "Liquidation Distribution").

                  "Holder" shall mean any holder, as registered on the books
and records of the Issuer, of any Common Securities.











    








                  The Guarantor irrevocably and unconditionally agrees to pay
in full to the Holders the Guarantee Payments (without duplication of amounts
theretofore paid by the Issuer), as and when due, regardless of any defense,
right of set-off or counterclaim which the Issuer may have or assert. The
Guarantor's obligation to make a Guarantee Payment may be satisfied by direct
payment of the required amounts by the Guarantor to the Holders or by causing
the Issuer to pay such amounts to the Holders.

                  If an Event of Default (as defined in the Indenture), has
occurred and is continuing, the rights of Holders of the Common Securities to
receive Guarantee Payments under this Common Securities Guarantee are
subordinated to the rights of Holders of Preferred Securities to receive
Guarantee Payments under the Preferred Securities Guarantee.

                  The Guarantor hereby waives notice of acceptance of this
Common Securities Guarantee and of any liability to which it applies or may
apply, presentment, demand for payment, any right to require a proceeding
first against the Issuer or any other Person before proceeding against the
Guarantor, protest, notice of nonpayment, notice of dishonor, notice of
redemption and all other notices and demands.

                  The obligations, covenants, agreements and duties of the
Guarantor under this Common Securities Guarantee shall in no way be affected
or impaired by reason of the happening from time to time of any of the
following:

  the release or waiver, by operation of law or otherwise, of the performance
or observance by the Issuer of any express or implied agreement, covenant,
term or condition relating to the Common Securities to be performed or
observed by the Issuer;

  the extension of time for the payment by the Issuer of all or any portion of
the Distributions, amount payable upon redemption, Liquidation Distribution or
any other sums payable under the terms of the Common Securities or the
extension of time for the performance of any other obligation under, arising
out of, or in connection with, the Common Securities (other than an extension
of time for payment of Distributions, amount payable upon redemption,
Liquidation Distribution or other sum payable that results from the extension
of any interest payment period on the Debentures or any extension of the
maturity date of the Debentures permitted by the Indenture);

         any failure, omission, delay or lack of diligence on the part of the
Holders to enforce, assert or exercise any right, privilege, power or remedy
conferred on the Holders pursuant to the terms of the Common Securities, or
any action on the part of the Issuer granting indulgence or extension of any
kind;









    







         the voluntary or involuntary liquidation, dissolution, sale of any
collateral, receivership, insolvency, bankruptcy, assignment for the benefit of
creditors, reorganization, arrangement, composition or readjustment of debt of,
or other similar proceedings affecting, the Issuer or any of the assets of the
Issuer;

         any invalidity of, or defect or deficiency in the Common
Securities;

         the settlement or compromise of any obligation guaranteed
hereby or hereby incurred; or

         any other circumstance whatsoever that might otherwise constitute a
legal or equitable discharge or defense of a guarantor, it being the intent of
this Section 2.3 that the obligations of the Guarantor hereunder shall be
absolute and unconditional under any and all circumstances.

There shall be no obligation of the Holders or any other Persons to give
notice to, or obtain consent of, the Guarantor with respect to the happening
of any of the foregoing.

                           The Guarantor expressly acknowledges that any
Holder of Common Securities may institute a legal proceeding directly against
the Guarantor to enforce its rights under this Common Securities Guarantee,
without first instituting a legal proceeding against the Issuer or any other
Person.

                           This Common Securities Guarantee creates a
guarantee of payment and not of collection.

                           The Guarantor shall be subrogated to all (if any)
rights of the Holders of Common Securities against the Issuer in respect of
any amounts paid to such Holders by the Guarantor under this Common Securities
Guarantee; provided, however, that the Guarantor shall not (except to the
extent required by mandatory provisions of law) be entitled to enforce or
exercise any rights which it may acquire by way of subrogation or any
indemnity, reimbursement or other agreement, in all cases as a result of
payment under this Common Securities Guarantee, if, at the time of any such
payment, any amounts are due and unpaid under this Common Securities
Guarantee. If any amount shall be paid to the Guarantor in violation of the
preceding sentence, the Guarantor agrees to hold such amount in trust for the
Holders and to pay over such amount to the Holders.

                           The Guarantor acknowledges that its obligations
hereunder are independent of the obligations of the Issuer with respect to the
Common Securities and that the Guarantor shall be liable as principal and as
debtor hereunder to make Guarantee Payments pursuant to the terms of this
Common Securities Guarantee notwithstanding the occurrence of any event
referred to in subsections (a) through (g), inclusive, of Section 2.4 hereof.








    








                  SECTION 2.9. The Guarantor acknowledges its obligation to
issue and deliver common stock upon the conversion of the Common Securities.




                           So long as any Common Securities remain
outstanding, if (i) the Guarantor shall be in default with respect to its
Guarantee Payments or other obligations hereunder, (ii) there shall have
occurred and be continuing any event that, with the giving of notice or the
lapse of time or both, would constitute an Event of Default under the
Indenture or (iii) the Guarantor shall have given notice of its selection of
an Extended Interest Payment Period as provided in the Indenture and such
period, or any extension thereof, shall be continuing, then (a) the Guarantor
shall not declare or pay any dividend on, or make any distributions with
respect to, or redeem, purchase, acquire or make a liquidation payment with
respect to, any of its capital stock (other than stock dividends paid by the
Guarantor which consist of the stock of the same class as that on which the
dividend is being paid), (b) the Guarantor shall not make any payment of
interest, principal or premium, if any, on or repay, repurchase or redeem any
debt securities issued by the Guarantor after the date hereof which rank pari
passu with or junior to the Debentures and (c) shall not make any guarantee
payments with respect to the foregoing (other than pursuant to the Preferred
Securities Guarantee).

                           This Common Securities Guarantee will constitute
an unsecured obligation of the Guarantor and will rank (i) subordinate and
junior in right of payment to all other liabilities of the Guarantor, except
any liabilities that may be made pari passu expressly by their terms, (ii)
pari passu with the most senior preferred or preference stock now or hereafter
issued by the Guarantor and with any guarantee now or hereafter entered into
by the Guarantor in respect of any preferred or preference stock or Preferred
Security of any Affiliate of the Guarantor, and (iii) senior to the
Guarantor's common stock.




                           This Common Securities Guarantee shall terminate
upon (i) full payment of the amount payable upon redemption of the Common
Securities, (ii) the distribution of the Guarantor's common stock to the
Holders in respect of the conversion of the Preferred Securities into the
Guarantor's common stock or the distribution of the Debentures to the Holders
of all of the Common Securities or (iii) full payment of the amounts payable
in accordance with the Declaration upon liquidation of the Issuer.
Notwithstanding the foregoing, this Common Securities Guarantee will continue
to be effective or will be reinstated, as the case








    






may be, if at any time any Holder of Common Securities must restore payment of
any sums paid under the Common Securities or under this Common Securities
Guarantee.




                           All guarantees and agreements contained in this
Common Securities Guarantee shall bind the successors, assigns, receivers,
trustees and representatives of the Guarantor and shall inure to the benefit
of the Holders of the Common Securities then outstanding. Except in connection
with any merger or consolidation of the Guarantor with or into another entity
or any sale, transfer or lease of all or substantially all of the Guarantor's
assets to another entity as permitted under Article Eight of the Indenture,
the Guarantor may not assign its rights or delegate its obligations under the
Common Securities Guarantee without the prior approval of the Holders of at
least a Majority of the aggregate stated liquidation amount of the Common
Securities then outstanding.

                           Except with respect to any changes which do not
adversely affect the rights of Holders (in which case no consent of Holders
will be required), this Common Securities Guarantee may only be amended with
the prior approval of the Holders of at least a Majority in liquidation amount
of all the outstanding Common Securities. The provisions of Section 12.2 of
the Declaration with respect to meetings of Holders of the Securities apply to
the giving of such approval.

                           All notices provided for in this Common Securities
Guarantee shall be in writing, duly signed by the party giving such notice,
and shall be delivered, telecopied or mailed by registered or certified mail,
as follows:

         if given to the Issuer, in care of the Regular Trustees at the
Issuer's mailing address set forth below (or such other address as the Issuer
may give notice of to the Holders of the Common Securities):

                   Steven A. McArthur
                   John G. Sylvia
                   Gregory Abel
                   CalEnergy Capital Trust
                    c/o CalEnergy Company, Inc.
                   302 South 36th Street, Suite 400
                   Omaha, Nebraska  68131

         if given to the Guarantor, at the Guarantor's mailing address set
forth below (or such other address as the Guarantor may give notice of to the
Holders of the Common Securities):

                                                     CalEnergy Company, Inc.








    






                   302 South 36th Street, Suite 400
                   Omaha, Nebraska  68131
                   Attention:  Chief Financial Officer
               with a copy to: General Counsel

         if given to any Holder of Common Securities, at the address
set forth on the books and records of the Issuer.

                  All such notices shall be deemed to have been given when
received in person, telecopied with receipt confirmed, or mailed by first
class mail, postage prepaid except that if a notice or other document is
refused delivery or cannot be delivered because of a changed address of which
no notice was given, such notice or other document shall be deemed to have
been delivered on the date of such refusal or inability to deliver.

                           This Common Securities Guarantee is solely for the
benefit of the Holders and is not separately transferable from
the Common Securities.

                           THIS COMMON SECURITIES GUARANTEE SHALL BE GOVERNED
BY AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW
YORK, WITHOUT REGARD TO PRINCIPLES OF CONFLICT OF LAWS.








    




                  THIS COMMON SECURITIES GUARANTEE is executed as of the day
and year first above written.

                                         CALENERGY COMPANY, INC., as Guarantor



                                          By: /s/ Steven A. McArthur
                                              -------------------------
                                           Name:  Steven A. McArthur
                                           Title: Senior Vice President