COOPER CAMERON CORP
S-3, 1998-05-04
OIL & GAS FIELD MACHINERY & EQUIPMENT
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<PAGE>   1
 
      AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MAY 4, 1998.
 
                                                     REGISTRATION NO. 333-
================================================================================
 
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
 
                                    FORM S-3
            REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
                             ---------------------
 
                           COOPER CAMERON CORPORATION
             (Exact name of registrant as specified in its charter)
 
<TABLE>
<S>                                                          <C>
                         DELAWARE
     (State or other jurisdiction of incorporation or                                76-0451843
                        organization)                                   (I.R.S. Employer Identification No.)
</TABLE>
 
                       515 POST OAK BOULEVARD, SUITE 1200
                              HOUSTON, TEXAS 77027
                                 (713) 513-3300
  (Address, including zip code, and telephone number, including area code, of
                   registrant's principal executive offices)
                             ---------------------
 
                                 FRANKLIN MYERS
                     SENIOR VICE PRESIDENT, GENERAL COUNSEL
                            AND CORPORATE SECRETARY
                           COOPER CAMERON CORPORATION
                       515 POST OAK BOULEVARD, SUITE 1200
                              HOUSTON, TEXAS 77027
                                 (713) 513-3300
(Name, address and telephone number, including area code, of agent for service)
                             ---------------------
 
                                 With Copies To
 
<TABLE>
<S>                                                    <C>
                  T. WILLIAM PORTER                                   J. DAVID KIRKLAND, JR.
               PORTER & HEDGES, L.L.P.                                 BAKER & BOTTS, L.L.P.
          700 LOUISIANA STREET, 35TH FLOOR                             3000 ONE SHELL PLAZA
                HOUSTON, TEXAS 77002                                   HOUSTON, TEXAS 77002
                   (713) 226-0600                                         (713) 229-1234
</TABLE>
 
    APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO PUBLIC: From time to
time after the Registration Statement becomes effective.
    If the only securities being registered on this Form are being offered
pursuant to dividend or interest reinvestment plans, please check the following
box.  [ ]
    If any of the securities being registered on this Form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, please check the following box.  [X]
    If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering.  [ ]
    If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering.  [ ]
    If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box.  [ ]
                             ---------------------
 
                        CALCULATION OF REGISTRATION FEE
 
<TABLE>
<S>                              <C>                     <C>                     <C>                     <C>
================================================================================================================================
                                                            PROPOSED MAXIMUM            PROPOSED
TITLE OF EACH CLASS OF                AMOUNT TO BE              OFFERING            MAXIMUM AGGREGATE           AMOUNT OF
SECURITIES TO BE REGISTERED(1)      REGISTERED(2)(3)         PRICE PER UNIT         OFFERING PRICE(4)       REGISTRATION FEE
- --------------------------------------------------------------------------------------------------------------------------------
Debt Securities.................
- --------------------------------------------------------------------------------------------------------------------------------
Preferred Stock, $.01 per
  share.........................
- --------------------------------------------------------------------------------------------------------------------------------
Common Stock, $.01 per
  share(5)......................
- --------------------------------------------------------------------------------------------------------------------------------
Warrants........................
- --------------------------------------------------------------------------------------------------------------------------------
         Total..................     $500,000,000(6)               (6)             $500,000,000(7)(8)           $147,500
================================================================================================================================
</TABLE>
 
(1) Also includes such indeterminate number of shares of Common Stock and/or
    Preferred Stock and/or amount of Debt Securities as may be issued upon
    conversion of any Preferred Stock or Debt Securities that provide for
    conversion into other Securities.
(2) Or, if any Debt Securities are issued with original issue discount, such
    greater amount as shall result in an aggregate public offering price of
    $500,000,000.
(3) In U.S. dollars or the equivalent thereof in foreign currency or currency
    units.
(4) Estimated solely for the purpose of computing the registration fee pursuant
    to Rule 457(o).
(5) Includes preferred stock purchase rights associated with the Common Stock.
    Since no separate consideration is payable for such rights, the registration
    fee for such securities is included in the fee for the Common Stock.
(6) Pursuant to General Instruction II.D of Form S-3, not specified as to each
    class and/or series of Securities to be registered.
(7) Represents the aggregate (i) issue price of any Debt Securities issued with
    original issue discount, (ii) principal amount of all other Debt Securities,
    (iii) liquidation preference of any Preferred Stock, (iv) amount used when
    computing the registration fee pursuant to Rule 457(c) for Common Stock, (v)
    issue price of any Warrants and (vi) exercise price of any Securities
    issuable upon exercise of Warrants.
(8) No separate consideration will be received for any Debt Securities,
    Preferred Stock or Common Stock issuable upon conversion of Debt Securities
    or Preferred Stock.
 
    THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(a),
MAY DETERMINE.
================================================================================
<PAGE>   2
 
INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OR AMENDMENT. A
REGISTRATION STATEMENT RELATING TO THESE SECURITIES HAS BEEN FILED WITH THE
SECURITIES AND EXCHANGE COMMISSION. THESE SECURITIES MAY NOT BE SOLD NOR MAY
OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT BECOME
EFFECTIVE. THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR THE
SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE SECURITIES
IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE UNLAWFUL PRIOR
TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF ANY SUCH STATE.
 
                             SUBJECT TO COMPLETION
                    PRELIMINARY PROSPECTUS DATED MAY 4, 1998
PROSPECTUS
 
[COOPER CAMERON LOGO]              $500,000,000
                           COOPER CAMERON CORPORATION
                                    SECURITIES
 
    Cooper Cameron Corporation (the "Company") may offer, from time to time,
together or separately, (i) shares of its common stock, $.01 par value (the
"Common Stock"), (ii) shares of its preferred stock, $.01 par value (the
"Preferred Stock"), (iii) debt securities (the "Debt Securities"), which may be
either senior debt securities ("Senior Debt Securities") or subordinated debt
securities ("Subordinated Debt Securities"), consisting of debentures, notes and
other unsecured evidences of indebtedness in one or more series, and (iv)
warrants to purchase securities of the Company as shall be designated by the
Company at the time of the offering (the "Warrants"), in each case, in amounts,
at prices and on the terms to be determined at the time of the offering. The
Common Stock, Preferred Stock, Debt Securities and Warrants are collectively
called the "Securities."
    The Securities offered pursuant to this Prospectus may be issued in one or
more series or issuances and will have an aggregate initial public offering
price of up to $500,000,000 (or the equivalent thereof, based on the applicable
exchange rate in one or more foreign currencies, currency units or composite
currencies as shall be designated by the Company). Certain specific terms of the
particular Securities in respect of which this Prospectus is being delivered
(the "Offered Securities") are set forth in the accompanying Prospectus
Supplement (the "Prospectus Supplement"), including, where applicable, (i) in
the case of Common Stock, the aggregate number of shares offered, the public
offering price and other terms of the offering and sale thereof, (ii) in the
case of Preferred Stock, the specific title, the aggregate number of shares
offered, any dividend (including the method of calculating payment of
dividends), liquidation, redemption, voting and other rights, any terms for any
conversion or exchange into other securities and the public offering price and
other terms of the offering and sale thereof, (iii) in the case of Debt
Securities, the specific title, the aggregate principal amount, aggregate
offering price, the denomination, the maturity, the premium, if any, the
interest rate (which may be fixed, floating or adjustable), if any, the time and
method of calculating payment of interest, if any, the place or places where
principal of, premium, if any, and interest, if any, on such Debt Securities
will be payable, the currency in which principal of, premium, if any, and
interest, if any, on such Debt Securities will be payable, whether such Debt
Securities are Senior Debt Securities or Subordinated Debt Securities, any terms
of redemption at the option of the Company, as the case may be, or repayment at
the option of the holder, any sinking fund provisions, the terms for any
conversion or exchange into other securities, any other special terms, and the
public offering price and the other terms of the offering and sale thereof, and
(iv) in the case of Warrants, the number and terms thereof, the duration, the
purchase price, the exercise price and a description of the securities for which
each Warrant is exercisable. If so specified in the applicable Prospectus
Supplement, Debt Securities of a series may be issued in whole or in part in
temporary or permanent global form.
    Unless otherwise specified in a Prospectus Supplement, (i) the Senior Debt
Securities, when issued, will be unsecured and will rank pari passu in right of
payment with all other unsecured and unsubordinated obligations of the Company,
and will rank senior in right of payment to all subordinated obligations of the
Company, and (ii) the Subordinated Debt Securities, when issued, will be
unsecured and will be subordinate in right of payment to the prior payment in
full of all Senior Indebtedness (as defined herein) of the Company, including
all Senior Debt Securities of the Company, and will rank pari passu in right of
payment with any other unsecured and subordinated obligations of the Company.
Holders of secured obligations of the Company will, however, have claims that
are prior to the claims of holders of Debt Securities with respect to the assets
securing such secured obligations. All Debt Securities will effectively be
subordinate in right of payment to the prior payment in full of all indebtedness
of the Company's subsidiaries, and all other obligations and other liabilities,
including trade payables, of the Company's subsidiaries.
    The Securities may be sold directly by the Company to investors, through
agents designated from time to time or to or through underwriters or dealers.
See "Plan of Distribution." If any agents of the Company or any underwriters are
involved in the sale of any Securities with respect to which this Prospectus is
being delivered, the names of such agents or underwriters and any applicable
commissions or discounts will be set forth in a Prospectus Supplement. Any
agents, dealers or underwriters participating in any particular issuance of
Securities may be deemed "underwriters" within the meaning of the Securities Act
of 1933, as amended (the "Securities Act"), with respect to that issuance. The
net proceeds to the Company from such sale also will be set forth in a
Prospectus Supplement.
    The Common Stock is listed on the New York Stock Exchange ("NYSE") under the
symbol "RON." On April 30, 1998, the closing sale price of the Common Stock on
the NYSE was $66 7/16 per share.
 
    SEE "RISK FACTORS" BEGINNING ON PAGE 3 FOR A DISCUSSION OF CERTAIN FACTORS
THAT SHOULD BE CONSIDERED BY PROSPECTIVE INVESTORS IN EVALUATING AN INVESTMENT
IN THE SECURITIES.
 
      THIS PROSPECTUS MAY NOT BE USED TO CONSUMMATE SALES OF SECURITIES UNLESS
ACCOMPANIED BY A PROSPECTUS SUPPLEMENT.
 
  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
 EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
   AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
                               CRIMINAL OFFENSE.
 
                    The date of this Prospectus is May   , 1998.
<PAGE>   3
 
     NO DEALER, SALESPERSON OR OTHER PERSON HAS BEEN AUTHORIZED TO GIVE ANY
INFORMATION OR TO MAKE ANY REPRESENTATION NOT CONTAINED IN THIS PROSPECTUS OR
THE ACCOMPANYING PROSPECTUS SUPPLEMENT IN CONNECTION WITH THE OFFERING COVERED
BY THIS PROSPECTUS AND THE ACCOMPANYING PROSPECTUS SUPPLEMENT. IF GIVEN OR MADE,
SUCH INFORMATION OR REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN
AUTHORIZED. NEITHER THIS PROSPECTUS NOR THE ACCOMPANYING PROSPECTUS SUPPLEMENT
CONSTITUTES AN OFFER TO SELL, OR A SOLICITATION OF ANY OFFER TO BUY, ANY OF THE
SECURITIES OFFERED HEREBY IN ANY JURISDICTION WHERE, OR TO ANY PERSON TO WHOM,
IT IS UNLAWFUL TO MAKE SUCH OFFER OR SOLICITATION. NEITHER THE DELIVERY OF THIS
PROSPECTUS OR THE ACCOMPANYING PROSPECTUS SUPPLEMENT NOR ANY SALE MADE HEREUNDER
SHALL, UNDER ANY CIRCUMSTANCES, CREATE ANY IMPLICATION THAT THERE HAS NOT BEEN
ANY CHANGE IN THE FACTS SET FORTH IN THIS PROSPECTUS OR THE AFFAIRS OF THE
COMPANY SINCE THE DATE HEREOF OR THAT THE INFORMATION IN THE PROSPECTUS OR
ACCOMPANYING PROSPECTUS SUPPLEMENT IS CORRECT AS OF ANY TIME SUBSEQUENT TO THE
DATE HEREOF OR THEREOF.
 
                             AVAILABLE INFORMATION
 
     The Company has filed with the Securities and Exchange Commission (the
"Commission") in Washington, D.C., a registration statement on Form S-3
(together with all amendments and exhibits thereto, the "Registration
Statement") under the Securities Act with respect to the Securities offered
hereby. Certain portions of the Registration Statement have not been included in
this Prospectus. For further information, reference is made to the Registration
Statement. Statements made in this Prospectus regarding the contents of any
contract or document filed as an exhibit to the Registration Statement are not
necessarily complete and, in each instance, reference is hereby made to the copy
of such contract or document so filed. Each such statement is qualified by such
reference.
 
     The Company is subject to the informational requirements of the Securities
Exchange Act of 1934, as amended (the "Exchange Act"), and in accordance
therewith files reports, proxy statements and other information with the
Commission. The Registration Statement, as well as such reports, proxy
statements and other information, can be inspected and copied at the public
reference facilities maintained by the Commission at 450 Fifth Street, N.W.,
Washington, D.C. 20549, and its regional offices at 500 West Madison Street,
Suite 1400, Chicago, Illinois 60661 and 7 World Trade Center, Suite 1300, New
York, New York 10048. Copies of such material can be obtained by mail from the
Public Reference Branch of the Commission at 450 Fifth Street, N.W., Washington,
D.C. 20549, at prescribed rates. The Commission maintains a Web site
(http://www.sec.gov) that contains reports, proxy and information statements and
other information regarding the Company. In addition, such material may also be
inspected and copied at the offices of the NYSE, 20 Broad Street, New York, New
York 10005.
 
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
 
     The following documents, which have been filed with the Commission by the
Company, are incorporated herein by reference: (i) the Company's Annual Report
on Form 10-K for the year ended December 31, 1997; and (ii) the descriptions of
the Company's Preferred Stock and its Common Stock and associated preferred
stock purchase rights contained in the Company's Registration Statement on Form
8-A filed on July 27, 1995. All documents filed by the Company with the
Commission pursuant to Section 13(a), 13(c), 14 or 15(d) of the Exchange Act
subsequent to the date hereof and prior to the termination of the offering of
Securities hereunder shall be deemed to be incorporated by reference in this
Prospectus and to be a part hereof from the date of filing of such document. Any
statement contained herein or in a document incorporated or deemed to be
incorporated by reference herein shall be deemed to be modified or superseded
for purposes of this Prospectus to the extent that a statement contained herein
or in any subsequently filed document which is or is deemed to be incorporated
by reference herein modifies or supersedes such statement. Any such statement so
modified or superseded shall not be deemed, except as so modified or superseded,
to constitute a part of this Prospectus.
 
     The Company will provide without charge to each person, including any
beneficial owner, to whom a copy of this Prospectus is delivered, upon written
or oral request, a copy of any or all of the documents incorporated by reference
as a part of the Registration Statement (not including exhibits to the documents
which have been incorporated herein by reference unless such exhibits are
specifically incorporated by reference in the documents which this Prospectus
incorporates). Requests should be directed to Franklin Myers, Corporate
Secretary, Cooper Cameron Corporation, 515 Post Oak Boulevard, Suite 1200,
Houston, Texas 77027, telephone (713) 513-3300.
 
                                        2
<PAGE>   4
 
                                  THE COMPANY
 
     The Company designs, manufactures, markets and services equipment used by
the oil and gas industry and industrial manufacturing companies. It is one of
the world's leading manufacturers of oil and gas pressure control equipment,
including valves, wellheads, chokes, blowout preventers, drilling and production
control systems and assembled systems for oil and gas drilling, production and
transmission used in onshore, offshore and underwater applications. The Company
is also a leading manufacturer of gas turbines, centrifugal compressors,
integral and separable reciprocating engines and compressors and turbochargers
utilized principally in oil and gas production and transmission applications and
in industrial, manufacturing and power generation applications. It also
manufactures integral gear centrifugal air compressors that provide oil-free air
for use in a variety of industrial applications. The Company operates
internationally with its equipment and services sold or utilized in
approximately 115 countries; it currently has manufacturing plants and service
centers in numerous locations, including the United States, the United Kingdom,
Canada, France, Norway, Ireland, Singapore, Germany, The Netherlands, Australia,
Mexico, Austria, Argentina, Nigeria and Brazil.
 
     The Company was incorporated under Delaware law in November 1994, initially
as a wholly owned subsidiary of Cooper Industries, Inc. ("CII"), comprising
CII's former petroleum and industrial equipment businesses; it became an
independent, publicly owned enterprise on June 30, 1995. The principal executive
offices of the Company are located at 515 Post Oak Boulevard, Suite 1200,
Houston, Texas 77027, and its telephone number at that address is (713)
513-3300.
 
                                  RISK FACTORS
 
     This Prospectus contains and incorporates by reference forward-looking
statements regarding the future prospects of the Company and other statements
that are not historical facts. The words "anticipate," "expect," "project,"
"estimate," "predict," "plan" and similar expressions are also intended to
identify forward-looking statements. Such statements involve risks and
uncertainties including, but not limited to, changes in the markets for oil and
gas and for oilfield service equipment and the risks of doing business in
changing markets, changes in applicable tax laws, the risks involved in dealing
with other parties, and changing costs and other factors discussed herein and in
the Company's other Commission filings. Should one or more risks or
uncertainties materialize, or should underlying assumptions prove incorrect,
actual outcomes may vary materially from those indicated.
 
     Prospective investors should carefully consider the following factors, as
well as the other information contained in this Prospectus or incorporated
herein by reference.
 
LOSSES INCURRED IN PRIOR YEARS
 
     The Company became an independent, publicly traded corporation upon
consummation on June 30, 1995, of an exchange offer (the "Split-Off") to the
shareholders of CII, the Company's former parent. For the years ended December
31, 1995 and 1994, the Company incurred net losses of $500.1 million and $3.7
million, respectively. The 1995 net loss included $482.5 million of pre-tax
nonrecurring and unusual charges, consisting principally of the write-down of
goodwill concurrently with consummation of the Split-Off. For the same periods,
the Company recorded operating losses (earnings before nonrecurring/unusual
items, corporate expense, interest and taxes) of $12.6 million for 1995 and
$35.6 million for 1994 in its petroleum production equipment ("PPE") segment.
While operations of the PPE segment and the Company as a whole have been
profitable in all subsequent periods for which results have been publicly
reported through the date of this Prospectus, no assurance can be given as to
future results of operations and, as with any manufacturing enterprise operating
in the capital goods markets in which the Company competes, the possibility that
losses could recur in future periods cannot be foreclosed (see "Sustainability
of Improved Operating Performance," below).
 
                                        3
<PAGE>   5
 
ENERGY INDUSTRY SPENDING
 
     Demand for the Company's products and services depends principally upon the
level of petroleum industry capital expenditures for exploration, production,
development, processing and transmission activities. These activities depend in
part on (i) oil and gas prices, expectations about future prices, the cost of
exploring for, producing, refining or processing, and delivering oil and gas,
(ii) local and international political, regulatory and economic conditions and
(iii) the ability of the petroleum industry to obtain capital. In addition, a
decrease in such expenditures could result from such factors as unfavorable tax
and other legislation or uncertainty concerning national energy policies. No
assurance can be given that current levels of oil and gas activities will be
maintained or that demand for the Company's products and services will reflect
the level of such activities. Decreases in oil and gas activity could have a
significant adverse effect upon the demand for the Company's products and
services and the Company's results of operations.
 
SUSTAINABILITY OF IMPROVED OPERATING PERFORMANCE
 
     During the period from the Split-Off through March 31, 1998, the Company
had improved its earnings from those experienced in previous fiscal quarters.
Such improvement was the result of an improved market environment for the
Company's goods and services. Because the Company's operations are highly
dependent upon the oil and gas industry, which in previous periods has proved to
be volatile, there can be no assurance that the improvements in the Company's
operations can be sustained at their current levels. Further, a significant
decrease in activity in the oil and gas industry could have a material adverse
effect upon the demand for the Company's products and services and consequently
the Company's results of operations as well as its liquidity and capital
resources.
 
INTERNATIONAL OPERATIONS
 
     The Company derives revenues from sales to geographic locations that
include political and economic environments that are considered to be high risk
with respect to the normal conduct of business. Included in these geographic
areas are locations to which the United States government has restricted export
privileges by United States companies. Depending upon the status of the export
restrictions and whether they may be increased, the sales and operating results
of the Company may be adversely affected. In addition, the Company encounters
risk with respect to currency exchange rate fluctuations, labor and political
disturbances, requirements as to local ownership and supply and other unique
circumstances that can adversely affect the Company's ability to do business in
locations outside the United States. As these events occur, there can be no
assurance that such events will not adversely affect the Company's results of
operation and financial condition.
 
ENVIRONMENTAL AND OTHER REGULATIONS
 
     The Company's operations are subject to a variety of foreign, federal,
state and local laws and regulations, including laws and regulations relating to
the protection of the environment. The Company is required to invest financial
and managerial resources to comply with such laws and anticipates that it will
continue to do so in the future. To date, the Company's cost of complying with
governmental regulation has not been material, but the fact that such laws or
regulations are changed frequently makes it impossible for the Company to
predict the cost or impact of such laws and regulations on its future
operations. The modification of existing laws or regulations or the adoption of
new laws or regulations imposing more stringent environmental restrictions could
adversely affect the Company.
 
                                        4
<PAGE>   6
 
                                USE OF PROCEEDS
 
     Except as otherwise described in any Prospectus Supplement, the net
proceeds from the sale of Securities will be used for general corporate
purposes, which may include refinancings of indebtedness, working capital,
capital expenditures, acquisitions and repurchases and redemptions of
Securities.
 
                       RATIO OF EARNINGS TO FIXED CHARGES
 
<TABLE>
<CAPTION>
                                                                  YEARS ENDED DECEMBER 31,
                                                            ------------------------------------
                                                            1997    1996    1995    1994    1993
                                                            ----    ----    ----    ----    ----
<S>                                                         <C>     <C>     <C>     <C>     <C>
Ratio of Earnings to Fixed Charges........................  6.9     4.5(a)  (b)     1.1     5.1
</TABLE>
 
- ---------------
 
(a)  Excluding nonrecurring/unusual charges of $7.3 million, the ratio of
     earnings to fixed charges would be 4.8.
 
(b)  As a result of the loss incurred in 1995, earnings did not cover fixed
     charges by $496.4 million. Excluding the provision for impairment of
     goodwill and nonrecurring/unusual charges of $482.5 million, earnings did
     not cover fixed charges by $13.9 million.
 
     For purposes of calculating the ratios of earnings to fixed charges,
"earnings" represent income (including only distributed income of less than 50%
owned entities) before income taxes and fixed charges. "Fixed charges" represent
the sum of interest charges and the portion of rental expenses representative of
an interest factor plus the Company's proportionate share of such charges from
its 50% owned joint ventures. The Company had no Preferred Stock outstanding for
any period presented, and accordingly, the ratio of earnings to combined fixed
charges and Preferred Stock dividends is the same as the ratio of earnings to
fixed charges.
 
                         DESCRIPTION OF DEBT SECURITIES
 
     The following description sets forth certain general terms and provisions
of the Debt Securities to which any Prospectus Supplement may relate ("Offered
Debt Securities"). The particular terms of the Offered Debt Securities and the
extent to which such general provisions may apply will be described in a
Prospectus Supplement relating to such Offered Debt Securities.
 
     The Debt Securities will be general unsecured obligations of the Company
and will constitute either Senior Debt Securities or Subordinated Debt
Securities. In the case of Debt Securities that will be Senior Debt Securities,
such Debt Securities will be issued under an Indenture (the "Senior Indenture")
to be executed by the Company and The First National Bank of Chicago, as trustee
under the Senior Indenture (the "Senior Trustee"), and will rank pari passu with
all other unsecured and unsubordinated debt of the Company. In the case of Debt
Securities that will be Subordinated Debt Securities, such Debt Securities will
be issued under an Indenture (the "Subordinated Indenture") to be executed by
the Company and such trustee thereunder as shall be named in an applicable
Prospectus Supplement (the "Subordinated Trustee"), and will rank junior to all
Senior Indebtedness (as defined below) of the Company (including any Senior Debt
Securities) that may be outstanding from time to time. The Senior Indenture and
the Subordinated Indenture are sometimes hereinafter referred to individually as
an "Indenture" and collectively as the "Indentures," and the Senior Trustee and
the Subordinated Trustee are sometimes hereinafter referred to individually as a
"Trustee" and collectively as the "Trustees." The statements under this caption
relating to the Debt Securities and the Indentures are summaries only and do not
purport to be complete. Such summaries make use of terms defined in the
Indentures. Wherever such terms are used herein or particular provisions of the
Indentures are referred to, such terms or provisions, as the case may be, are
incorporated by reference as part of the statements made herein, and such
statements are qualified in their entirety by such reference. Certain defined
terms in the Indentures are capitalized herein. The italicized parenthetical
references below refer to the section numbers in the applicable Indenture or
Indentures, unless otherwise indicated.
 
                                        5
<PAGE>   7
 
     PROVISIONS APPLICABLE TO BOTH SENIOR AND SUBORDINATED DEBT SECURITIES
 
GENERAL
 
     The Indentures do not limit the aggregate principal amount of Debt
Securities which can be issued thereunder and provide that Debt Securities may
be issued from time to time thereunder in one or more series, each in an
aggregate principal amount authorized by the Company prior to issuance. (Section
301) The Indentures do not limit the amount of other unsecured indebtedness or
securities which may be issued by the Company.
 
     Unless otherwise indicated in a Prospectus Supplement, the Debt Securities
will not benefit from any covenant or other provision that would afford Holders
of such Debt Securities special protection in the event of a highly leveraged
transaction involving the Company or that would give holders of the Debt
Securities the right to require the Company to repurchase their securities in
the event of a decline in the credit rating of the Company's debt securities
resulting from a takeover, recapitalization or similar restructuring or
otherwise.
 
     Reference is made to the Prospectus Supplement for the following terms of
the Offered Debt Securities: (i) the title and limit upon the aggregate
principal amount of the Offered Debt Securities; (ii) whether such Offered Debt
Securities will be issued in the form of one or more global securities and
whether such global securities are to be issuable in temporary global form or
permanent global form; (iii) the date or dates on which the principal of and
premium, if any, on the Offered Debt Securities is payable or the method of
determination thereof; (iv) the rate or rates, or the method of determination
thereof, at which the Offered Debt Securities will bear interest, if any; (v)
the date or dates from which such interest will accrue; (vi) the interest
payment dates on which such interest will be payable and the record date for the
interest payable on any Offered Debt Securities on any interest payment date;
(vii) whether and under what circumstances Additional Amounts with respect to
the Offered Debt Securities will be payable; (viii) the place or places where
the principal of, premium and interest, if any, on and any Additional Amounts
with respect to the Offered Debt Securities will be payable; (ix) the period or
periods within which, the price or prices at which and the terms and conditions
upon which Offered Debt Securities may be redeemed, in whole or in part, at the
option of the Company, if the Company is to have that option; (x) the
obligation, if any, of the Company to redeem or purchase Offered Debt Securities
pursuant to any sinking fund or analogous provisions or at the option of a
holder thereof and the period or periods within which, the price or prices at
which and the terms and conditions upon which Offered Debt Securities will be
redeemed or purchased in whole or in part pursuant to such obligation; (xi) the
denominations in which any Offered Debt Security will be issuable if other than
denominations of $1,000 and any integral multiple thereof; (xii) if other than
U.S. dollars, the currency or currencies (including composite currencies), or
the form, including equity securities, other debt securities (including Debt
Securities), warrants or any other securities or property of the Company or any
other Person, in which payment of principal of, premium and interest, if any, on
and any Additional Amounts with respect to the Offered Debt Securities will be
payable; (xiii) if such payments are to be payable, at the election of the
Company or a holder thereof, in a currency or currencies other than that in
which the Offered Debt Securities are stated to be payable, the currency or
currencies (including composite currencies) in which such payments as to which
such election is made will be payable, and the periods within which and the
terms and conditions upon which such election is to be made; (xiv) if the amount
of such payments may be determined with reference to any commodities, currencies
or indices, values, rates or prices or any other index or formula, the manner in
which such amounts will be determined; (xv) if other than the entire principal
amount thereof, the portion of the principal amount of Offered Debt Securities
that will be payable upon declaration of acceleration of the maturity thereof;
(xvi) any additional means of satisfaction and discharge of the Indenture and
any additional conditions to discharge with respect to Offered Debt Securities;
(xvii) any deletions or modifications of or additions to the definitions set
forth in the Indenture, the Events of Default or covenants of the Company
pertaining to the Offered Debt Securities; (xviii) if the Offered Debt
Securities are to be convertible into or exchangeable for equity securities,
other debt securities (including Debt Securities), warrants or any other
securities or property of the Company or any other Person, at the option of the
Company or the holder or upon the occurrence of any condition or event, the
terms and conditions for such conversion or exchange; and (xix) any other terms
of the Offered Debt Securities. (Section 301)
 
                                        6
<PAGE>   8
 
     The Debt Securities will be issued in registered form. No service charge
will be made for any registration of transfer or exchange of the Debt
Securities, but the Company may require payment of a sum sufficient to cover any
tax or other governmental charge payable in connection therewith. (Section 305).
 
     To the extent the Company conducts its operations through Subsidiaries, the
Holders of Debt Securities will have a junior position to any creditors of the
Company's Subsidiaries.
 
     Offered Debt Securities may be sold at a discount (which may be
substantial) below their stated principal amount bearing no interest or interest
at a rate which at the time of issuance is below market rates. Any material
United States federal income tax consequences and other special considerations
applicable thereto will be described in the Prospectus Supplement relating to
any such Offered Debt Securities.
 
     If any of the Offered Debt Securities are sold for any foreign currency or
currency unit or if the principal of, or premium or interest, if any, on any of
the Offered Debt Securities is payable in any foreign currency or currency unit,
the restrictions, elections, tax consequences, specific terms and other
information with respect to such Offered Debt Securities and such foreign
currency or currency unit will be set forth in the Prospectus Supplement
relating thereto.
 
MEDIUM TERM NOTES
 
     The Company may offer from time to time medium-term notes (the "Medium Term
Notes") as a series of Debt Securities under either Indenture. The particular
terms and provisions of the Medium Term Notes will be described in the
Prospectus Supplement relating to such Medium Term Notes.
 
EVENTS OF DEFAULT
 
     Unless otherwise provided with respect to any series of Debt Securities,
the following are Events of Default under each Indenture with respect to the
Debt Securities of such series issued under such Indenture: (a) failure to pay
principal of (or premium, if any, on) any Debt Security of such series when due;
(b) failure to pay any interest on or any Additional Amounts with respect to any
Debt Security of such series when due, continued for 30 days; (c) failure to
deposit any mandatory sinking fund payment, when due, in respect of the Debt
Securities of such series, continued for 30 days; (d) failure to perform any
other covenant or warranty of the Company in the applicable Indenture (other
than a covenant included in such Indenture for the benefit of a series of Debt
Securities other than such series), continued for 90 days after written notice
as provided in such Indenture; (e) certain events of bankruptcy, insolvency or
reorganization in respect of the Company; and (f) any other Event of Default as
may be specified with respect to Debt Securities of such series. (Section 501)
If an Event of Default with respect to any outstanding series of Debt Securities
occurs and is continuing, either the applicable Trustee or the Holders of at
least 25% in principal amount of the outstanding Debt Securities of such series
(in the case of an Event of Default described in clause (a), (b), (c) or (f)
above) or at least 25% in principal amount of all outstanding Debt Securities
under the applicable Indenture (in the case of an Event of Default described in
clause (d) above) may declare the principal amount of all the Debt Securities of
the applicable series (or of all outstanding Debt Securities under the
applicable Indenture, as the case may be) to be due and payable immediately. If
an Event of Default described in clause (e) above occurs, the principal amount
of the outstanding Debt Securities of all series ipso facto shall become
immediately due and payable without any declaration or other act on the part of
either Trustee or any Holder. At any time after a declaration of acceleration
has been made, but before a judgment has been obtained, the Holders of a
majority in principal amount of the outstanding Debt Securities of such series
(or of all outstanding Debt Securities under the applicable Indenture, as the
case may be) may, under certain circumstances, rescind and annul such
acceleration. (Section 502) Depending on the terms of other indebtedness of the
Company outstanding from time to time, an Event of Default under the Indenture
may give rise to cross defaults on such other indebtedness of the Company.
 
     Each Indenture provides that the applicable Trustee will, within 90 days
after the occurrence of a default in respect of any series of Debt Securities
issued thereunder, give to the Holders of the Debt Securities of such series
notice of all uncured and unwaived defaults known to it, provided, however,
that, except in the case of a default in the payment of the principal of (or
premium, if any) or any interest on, any Additional Amounts or
 
                                        7
<PAGE>   9
 
any sinking fund installment with respect to, any Debt Securities of such
series, the applicable Trustee will be protected in withholding such notice if
it in good faith determines that the withholding of such notice is in the
interest of the Holders of the Debt Securities of such series; and provided,
further, that such notice shall not be given until at least 30 days after the
occurrence of a default in the performance, or breach, of any covenant or
warranty of the Company under such Indenture other than for the payment of the
principal of (or premium, if any) or any interest on, or any Additional Amounts
or any sinking fund installment with respect to, any Debt Securities of such
series. For the purpose of this provision, "default" with respect to Debt
Securities of any series means any event, act or condition which is, or after
notice or lapse of time, or both, would become, an Event of Default with respect
to the Debt Securities of such series. (Section 602)
 
     The Holders of a majority in principal amount of the outstanding Debt
Securities of any series (or, in certain cases, all outstanding Debt Securities
under the applicable Indenture) have the right, subject to certain limitations,
to direct the time, method and place of conducting any proceeding for any remedy
available to the Trustee or exercising any trust or power conferred on the
Trustee with respect to the Debt Securities of such series (or of all
outstanding Debt Securities under the Indenture). (Section 512) Each Indenture
provides that in case an Event of Default shall occur and be continuing, the
Trustee shall exercise such of its rights and powers under the applicable
Indenture and use the same degree of care and skill in its exercise as a prudent
man would exercise or use under the circumstances in the conduct of his own
affairs. (Section 601) Subject to such provisions, neither Trustee will be under
any obligation to exercise any of its rights or powers under the applicable
Indenture at the request of any of the Holders of the Debt Securities unless
they shall have offered to the applicable Trustee security or indemnity
satisfactory to it against the costs, expenses and liabilities which might be
incurred by it in compliance with such request. (Section 603)
 
     The Holders of a majority in principal amount of the outstanding Debt
Securities of any series (or, in certain cases, all outstanding Debt Securities
under the applicable Indenture) may on behalf of the Holders of all Debt
Securities of such series (or, in certain cases, of all outstanding Debt
Securities under such Indenture) waive any past default under the Indenture,
except a default in the payment of the principal of (or premium, if any) or
interest on or any Additional Amounts with respect to any Debt Security or in
respect of a provision which under the applicable Indenture cannot be modified
or amended without the consent of the Holder of each outstanding Debt Security
affected. (Section 513) The Holders of a majority in principal amount of the
outstanding Debt Securities affected thereby may on behalf of the Holders of all
such Debt Securities waive compliance by the Company with certain restrictive
provisions of the Indenture. (Section 1006)
 
     The Company is required to furnish to each Trustee annually a statement as
to the performance by the Company of certain of its obligations under the
applicable Indenture and as to any default in such performance. (Section 1005)
 
MODIFICATION
 
     Modifications and amendments of each Indenture may be made by the Company
and the applicable Trustee with the consent of the Holders of a majority in
principal amount of the outstanding Debt Securities under such Indenture;
provided, however, that no such modification or amendment may, without the
consent of the Holder of each outstanding Debt Security affected thereby, (a)
change the stated maturity date of the principal of, or any installment of
principal of or interest on or any Additional Amounts with respect to, any Debt
Security, (b) reduce the principal amount of or the rate of interest on or any
Additional Amounts with respect to, or any premium payable upon the redemption
of, any Debt Security, (c) change the place or currency, currencies, or currency
unit or units of payment of principal of, or premium (if any) or interest on or
any Additional Amounts with respect to, any Debt Security, (d) impair the right
to institute suit for the enforcement of any payment on or with respect to any
Debt Security, (e) modify the provisions of the Subordinated Indenture with
respect to the subordination of any Subordinated Debt Security in a manner
adverse to the Holder, or (f) reduce the percentage in principal amount of
outstanding Debt Securities the consent of the Holders of which is required for
modification or amendment of the Indenture or for waiver of compliance with
certain provisions of the Indenture or for waiver of certain defaults. (Section
902)
 
                                        8
<PAGE>   10
 
     Each Indenture provides that the Company and the applicable Trustee may,
without the consent of any Holders of Debt Securities, enter into supplemental
indentures for the purposes, among other things, of adding to the Company's
covenants, adding additional Events of Default, establishing the form or terms
of Debt Securities or curing ambiguities or inconsistencies in the Indenture,
provided that such action to cure ambiguities or inconsistencies shall not
adversely affect the interests of the Holders of the Debt Securities in any
material respect. (Section 901)
 
CONSOLIDATION, MERGER AND SALE OF ASSETS
 
     The Company, without the consent of any Holders of outstanding Debt
Securities, may consolidate with or merge into, or convey, transfer or lease its
assets substantially as an entirety to, any Person, provided that (i) the Person
formed by such consolidation or into which the Company is merged or which
acquires or leases the assets of the Company substantially as an entirety is a
Person which assumes by supplemental indenture the Company's obligations on the
Debt Securities and under each Indenture, (ii) after giving effect to the
transaction, no Event of Default and no event, act or condition which, after
notice or lapse of time or both, would become an Event of Default shall have
occurred and be continuing, and (iii) certain other conditions are met. Upon
compliance with these provisions by a successor Person, the Company will (except
in the case of a lease) be relieved of its obligations under the Indentures and
the Debt Securities. (Article Eight)
 
DISCHARGE AND DEFEASANCE
 
     The Company may terminate its obligations under each Indenture, other than
its obligation to pay the principal of (and premium, if any) and interest on and
any Additional Amounts with respect to the Debt Securities of any series and
certain other obligations, if it (i) irrevocably deposits or causes to be
irrevocably deposited with the Trustee as trust funds money or U.S. Government
Obligations maturing as to principal and interest sufficient to pay the
principal of, any interest on, and any Additional Amounts and any mandatory
sinking funds in respect of, all outstanding Debt Securities of such series on
the stated maturity of such payments or on any redemption date and (ii) complies
with any additional conditions specified to be applicable with respect to the
covenant defeasance of Debt Securities of such series. (Section 401)
 
     The terms of any series of Debt Securities may also provide for legal
defeasance pursuant to the applicable Indenture. In such case, if the Company
(i) irrevocably deposits or causes to be irrevocably deposited money or U.S.
Government Obligations as described above, (ii) makes a request to the Trustee
to be discharged from its obligations on the Debt Securities of such series and
(iii) complies with any additional conditions specified to be applicable with
respect to legal defeasance of Debt Securities of such series, then the Company
shall be deemed to have paid and discharged the entire indebtedness on all the
outstanding Debt Securities of such series and the obligations of the Company
under the applicable Indenture and the Debt Securities of such series to pay the
principal of (and premium, if any) and interest on and any Additional Amounts
with respect to the Debt Securities of such series shall cease, terminate and be
completely discharged, and the Holders thereof shall thereafter be entitled only
to payment out of the money or U.S. Government Obligations deposited with the
Trustee as aforesaid, unless the Company's obligations are revived and
reinstated because the Trustee is unable to apply such trust fund by reason of
any legal proceeding, order or judgment. (Sections 403 and 404)
 
     "U.S. Government Obligations" is defined in the Indentures as direct
noncallable obligations of, or noncallable obligations the payment of principal
of and interest on which is guaranteed by, the United States of America, or to
the payment of which obligations or guarantees the full faith and credit of the
United States of America is pledged, or beneficial interests in a trust the
corpus of which consists exclusively of money or such obligations or a
combination thereof. (Section 401)
 
FORM, EXCHANGE, REGISTRATION AND TRANSFER
 
     Definitive Debt Securities are issuable in registered form. (Section 301)
Reference is made to the Prospectus Supplement for the terms relating to the
form, exchange, registration and transfer of Debt Securities issuable in
temporary or permanent global forms.
 
                                        9
<PAGE>   11
 
     Debt Securities of any series will be exchangeable for other Debt
Securities of the same series and of a like aggregate principal amount and tenor
of different authorized denomination.
 
     Debt Securities may be presented for registration of transfer (with the
form of transfer endorsed thereon duly executed), at the office of the Security
Registrar or at the office of any transfer agent designated by the Company for
such purpose with respect to any series of Debt Securities and referred to in an
applicable Prospectus Supplement, without service charge and upon payment of any
taxes and other governmental charges as described in the applicable Indenture.
Such transfer or exchange will be effected upon the Security Registrar or such
transfer agent, as the case may be, being satisfied with the documents of title
and identity of the Person making the request. The Company has appointed the
Trustee as Security Registrar. (Section 305) If a Prospectus Supplement refers
to any transfer agents (in addition to the Security Registrar) initially
designated by the Company with respect to any series of Debt Securities, the
Company may at any time rescind the designation of any such transfer agent or
approve a change in the location through which any such transfer agent acts. The
Company will be required to maintain a transfer agent in each Place of Payment
for such series. The Company may at any time designate additional transfer
agents with respect to any series of Debt Securities. (Section 1002)
 
     In the event of any redemption in part, the Company shall not be required
to (i) issue, register the transfer of or exchange Debt Securities of any series
during a period beginning at the opening of business 15 days prior to the
selection of Debt Securities of that series for redemption and ending on the
close of business on the day of mailing of the relevant notice of redemption; or
(ii) register the transfer of or exchange any Debt Security, or portion thereof,
called for redemption, except the unredeemed portion of any Debt Security being
redeemed in part. (Section 305)
 
PAYMENT AND PAYING AGENTS
 
     Unless otherwise indicated in an applicable Prospectus Supplement, payment
of principal of and any premium and interest on and Additional Amounts with
respect to Debt Securities will be made in the designated currency or currency
unit at the office of such Paying Agent or Paying Agents as the Company may
designate from time to time, except that, at the option of the Company, payment
of any interest may be made by check mailed to the address of the Person
entitled thereto as such address shall appear in the Security Register. Unless
otherwise indicated in an applicable Prospectus Supplement, payment of any
installment of interest on Debt Securities will be made to the Person in whose
name such Debt Security is registered at the close of business on the Regular
Record Date for such interest. (Section 307)
 
     Unless otherwise indicated in an applicable Prospectus Supplement, the
Corporate Trust Office of each Trustee in New York, New York will be designated
as a Paying Agent for the Company for payments with respect to Debt Securities.
The Company may at any time designate additional Paying Agents or rescind the
designation of any Paying Agent or approve a change in the office through which
any Paying Agent acts, except that the Company will be required to maintain a
Paying Agent in each Place of Payment for such series. (Section 1002)
 
     All moneys paid by the Company to a Paying Agent for the payment of
principal of or any premium or interest on or Additional Amounts with respect to
any Debt Security which remain unclaimed at the end of three years after it
shall have become due and payable will (subject to applicable escheat laws) be
repaid to the Company, and the Holder of such Debt Security will thereafter look
only to the Company for payment thereof. (Section 1003)
 
BOOK-ENTRY DEBT SECURITIES
 
     The Debt Securities of a series may be issued, in whole or in part, in the
form of one or more global Debt Securities that would be deposited with a
depositary or its nominee identified in the applicable Prospectus Supplement.
The specific terms of any depositary arrangement with respect to any portion of
a series of Debt Securities and the rights of, and limitations on, owners of
beneficial interests in any such global Debt Security representing all or a
portion of a series of Debt Securities will be described in the applicable
Prospectus Supplement. (Section 203)
 
                                       10
<PAGE>   12
 
MEETINGS
 
     The Indenture contain provisions for convening meetings of the Holders of
Debt Securities of a series. (Section 1301 of Senior Indenture; Section 1401 of
Subordinated Indenture) A meeting may be called at any time by the Trustee, and
also, upon request, by the Company or the Holders of at least 10% in principal
amount of the Outstanding Debt Securities of such series, in any such case upon
notice given as described under "Notices" below. (Section 1302 of Senior
Indenture; Section 1402 of Subordinated Indenture) Except for any consent that
must be given by the Holder of each Outstanding Debt Security affected thereby,
as described under "Modification" above, any resolution presented at a meeting
or adjourned meeting duly reconvened at which a quorum is present may be adopted
by the affirmative vote of the Holders of a majority in principal amount of the
Outstanding Debt Securities of that series; provided, however, that, except for
any consent that must be given by the Holder of each Outstanding Debt Security
affected thereby, as described under "Modification" above, any resolution with
respect to any request, demand, authorization, direction, notice, consent,
waiver or other action that may be made, given or taken by the Holders of a
specified percentage, which is less than a majority in principal amount of the
Outstanding Debt Securities of a series, may be adopted at a meeting or
adjourned meeting duly reconvened at which a quorum is present by the
affirmative vote of the Holders of such specified percentage in principal amount
of the Outstanding Debt Securities of that series. Subject to the proviso set
forth above, any resolution passed or decision taken at any meeting of Holders
of Debt Securities of any series duly held in accordance with the Indenture will
be binding on all Holders of Debt Securities of that series and any related
coupons. The quorum at any meeting called to adopt a resolution, and at any
reconvened meeting, will be Persons holding or representing a majority in
principal amount of the Outstanding Debt Securities of a series. (Section 1304
of Senior Indenture; Section 1404 of Subordinated Indenture)
 
NOTICES
 
     Notices to Holders of Debt Securities will be given by mail to the
addresses of such Holders as they appear in the Security Register. (Section 107)
 
GOVERNING LAW
 
     Each Indenture and the Debt Securities will be governed by and construed in
accordance with the laws of the State of New York, without giving effect to
applicable principles of conflicts of laws to the extent the laws of another
jurisdiction would be required thereby. (Section 113)
 
THE TRUSTEE
 
     The Indentures contain certain limitations on the right of the applicable
Trustee, as a creditor of the Company, to obtain payment of claims in certain
cases and to realize on certain property received with respect to any such
claims, as security or otherwise. (Section 613) Each Trustee is permitted to
engage in other transactions, except that, if it acquires any conflicting
interest (as defined), it must eliminate such conflict or resign. (Section 608)
 
     The Senior Trustee has made loans to the Company and its subsidiaries and
affiliates from time to time in the ordinary course of business and at
prevailing interest rates under agreements with commercial bank groups. In
addition, the Senior Trustee may from time to time serve as a depositary of
funds of, and perform other services for, the Company.
 
                                       11
<PAGE>   13
 
          PROVISIONS APPLICABLE SOLELY TO SUBORDINATED DEBT SECURITIES
 
     The payment of the principal of, premium, if any, and interest on and any
Additional Amounts with respect to the Subordinated Debt Securities is expressly
subordinated, to the extent and in the manner set forth in the Subordinated
Indenture, to the prior payment in full of all Senior Indebtedness of the
Company.
 
     The Subordinated Indenture provides that no payment may be made by or on
behalf of the Company on account of the principal of, premium, if any, or
interest on or any Additional Amounts with respect to the Subordinated Debt
Securities, or to acquire any of the Subordinated Debt Securities (including
repurchases of Subordinated Debt Securities at the option of the Holder thereof)
for cash or property (other than certain junior securities of the Company), or
on account of the redemption provisions of the Subordinated Debt Securities, in
the event of (i) default in the payment of any principal of, premium, if any, or
interest on or Additional Amounts with respect to any Senior Indebtedness of the
Company when it becomes due and payable, whether at maturity or at a date fixed
for prepayment or by declaration or otherwise (a "Payment Default"), unless and
until such Payment Default has been cured or waived or otherwise has ceased to
exist, or (ii) any other event of default with respect to any Designated Senior
Indebtedness permitting the holders of such Designated Senior Indebtedness (or a
trustee or other representative on behalf of the holders thereof) to declare
such Designated Senior Indebtedness due and payable prior to the date on which
it would otherwise have become due and payable, upon written notice thereof to
the Company and the Subordinated Trustee by any holders of such Designated
Senior Indebtedness (or a trustee or other representative on behalf of the
holders thereof) (the "Default Notice"), unless and until such event of default
shall have been cured or waived or otherwise has ceased to exist, provided that
such payments may not be prevented under clause (ii) above for more than 179
days after an applicable Default Notice has been received by the Subordinated
Trustee unless the Designated Senior Indebtedness in respect of which such event
of default exists has been declared due and payable in its entirety, in which
case no such payment may be made until such acceleration has been rescinded or
annulled or such Designated Senior Indebtedness has been paid in full. In the
case of (ii) above, no event of default that existed or was continuing on the
date of any Default Notice (whether or not such event of default is on the same
issue of Designated Senior Indebtedness) may be made the basis for the giving of
a second Default Notice, and only one such Default Notice may be given in any
365-day period.
 
     In the event that, notwithstanding the foregoing, any payment or
distribution of assets of the Company (other than certain junior securities of
the Company) is received by the Subordinated Trustee or the Holders of
Subordinated Debt Securities at a time when such payment or distribution is
prohibited by the foregoing provisions, then, unless such payment or
distribution is no longer prohibited by the foregoing provisions, such payment
or distribution shall be received and held in trust by the Subordinated Trustee
or such Holders or the Paying Agent for the benefit of the holders of Senior
Indebtedness of the Company, and shall be paid or delivered by the Subordinated
Trustee or such Holders or the Paying Agent, as the case may be, to the holders
of the Senior Indebtedness of the Company remaining unpaid or unprovided for or
their representative or representatives, or to the trustee or trustees under any
indenture pursuant to which any instruments evidencing such Senior Indebtedness
of the Company may have been issued, ratably according to the aggregate amounts
remaining unpaid on account of the Senior Indebtedness of the Company held or
represented by each, for application to the payment of all Senior Indebtedness
in full after giving effect to any concurrent payment or distribution to or for
the holders of such Senior Indebtedness.
 
     Upon any distribution of assets of the Company or upon any dissolution,
winding up, total or partial liquidation or reorganization of the Company,
whether voluntary or involuntary, in bankruptcy, insolvency, receivership or a
similar proceeding or upon assignment for the benefit of creditors, (i) the
holders of all Senior Indebtedness of the Company will first be entitled to
receive payment in full before the Holders of Subordinated Debt Securities are
entitled to receive any payment on account of the principal of, premium, if any,
and interest on or any Additional Amounts with respect to the Subordinated Debt
Securities (other than certain junior securities of the Company) and (ii) any
payment or distribution of assets of the Company of any kind or character,
whether in cash, property or securities (other than certain junior securities of
the Company) to which the Holders of Subordinated Debt Securities or the
Subordinated Trustee on behalf of such Holders would be entitled, except for the
subordination provisions contained in the Subordinated Indenture, will be paid
by the liquidating trustee or agent or other person making such a payment or
 
                                       12
<PAGE>   14
 
distribution directly to the holders of Senior Indebtedness of the Company or
their representative, ratably according to the respective amounts of Senior
Indebtedness held or represented by each, to the extent necessary to make
payment in full of all such Senior Indebtedness remaining unpaid, after giving
effect to any concurrent payment or distribution to the holders of such Senior
Indebtedness.
 
     No provision contained in the Subordinated Indenture or the Subordinated
Debt Securities affects the obligation of the Company, which is absolute and
unconditional, to pay, when due, principal of, premium, if any, and interest on
and any Additional Amounts with respect to the Subordinated Debt Securities. The
subordination provisions of the Subordinated Indenture and the Subordinated Debt
Securities do not prevent the occurrence of any default or Event of Default
under the Subordinated Indenture or limit the rights of the Subordinated Trustee
or any Holder of Subordinated Debt Securities, subject to the two preceding
paragraphs, to pursue any other rights or remedies with respect to the
Subordinated Debt Securities.
 
     As a result of these subordination provisions, in the event of the
liquidation, bankruptcy, reorganization, insolvency, receivership or similar
proceeding or an assignment for the benefit of the creditors of the Company or
any of its subsidiaries or a marshaling of assets or liabilities of the Company
and its subsidiaries, Holders of Subordinated Debt Securities may receive
ratably less than other creditors.
 
     The term "Indebtedness" of any Person means, unless otherwise provided with
respect to the Subordinated Debt Securities of a series and described in the
Prospectus Supplement relating thereto, without duplication, (i) all liabilities
and obligations, contingent or otherwise, of any such Person (a) in respect of
borrowed money (whether or not the recourse of the lender is to the whole of the
assets of such Person or only to a portion thereof), (b) evidenced by bonds,
notes, debentures or similar instruments, (c) representing the balance deferred
and unpaid of the purchase price of any property or services, except such as
would constitute trade payables to trade creditors in the ordinary course of
business that are not more than 90 days past their original due date, (d)
evidenced by bankers' acceptances or similar instruments issued or accepted by
banks, (e) for the payment of money relating to a Capitalized Lease Obligation
or (f) evidenced by a letter of credit or a reimbursement obligation of such
Person with respect to any letter of credit; (ii) all net obligations of such
Person under Interest Swap and Hedging Obligations; (iii) all liabilities of
others of the kind described in the preceding clause (i) or (ii) that such
Person has guaranteed or that is otherwise its legal liability and all
obligations to purchase, redeem or acquire any Capital Stock; and (iv) any and
all deferrals, renewals, extensions, refinancings, refundings (whether direct or
indirect) of, or amendments, modifications or supplements to, any liability of
the kind described above, whether or not between or among the same parties.
 
     The term "Senior Indebtedness" of the Company, unless otherwise provided
with respect to the Subordinated Debt Securities of a series and described in
the Prospectus Supplement relating thereto, is defined in the Subordinated
Indenture as (i) all Indebtedness of the Company, unless, by the terms of the
instrument creating or evidencing such Indebtedness, it is provided that such
Indebtedness is not superior in right of payment to the Subordinated Debt
Securities or to other Indebtedness which is pari passu with or subordinated to
the Subordinated Debt Securities and (ii) any modifications, refunding,
deferrals, renewals or extensions of any such Indebtedness or securities, notes
or other evidences of Indebtedness issued in exchange for such Indebtedness;
provided that in no event shall "Senior Indebtedness" include (a) Indebtedness
of the Company owed or owing to any subsidiary of the Company or any officer,
director or employee of the Company or any subsidiary of the Company, (b)
Indebtedness to trade creditors or (c) any liability for taxes owed or owing by
the Company.
 
     The term "Designated Senior Indebtedness," unless otherwise provided with
respect to the Subordinated Debt Securities of a series and described in the
Prospectus Supplement relating thereto, is defined in the Subordinated Indenture
to mean any Senior Indebtedness of the Company that (i) in the instrument
evidencing the same or the assumption or guarantee thereof (or related documents
to which the Company is a party) is expressly designated as "Designated Senior
Indebtedness" for purposes of the Subordinated Indenture and (ii) satisfies such
other conditions as may be provided with respect to the Subordinated Debt
Securities of such series (provided that such instrument or documents may place
limitations and conditions on the rights of the holders of such Senior
Indebtedness to exercise the rights of Designated Senior Indebtedness).
 
                                       13
<PAGE>   15
 
     If Subordinated Debt Securities are issued under the Subordinated
Indenture, the aggregate principal amount of Senior Indebtedness outstanding as
of a recent date will be set forth in the Prospectus Supplement. The
Subordinated Indenture does not restrict the amount of Senior Indebtedness that
the Company may incur.
 
                          DESCRIPTION OF CAPITAL STOCK
 
     The authorized stock of the Company consists of 75,000,000 shares of Common
Stock and 10,000,000 shares of Preferred Stock. At December 31, 1997, 52,758,143
shares of Common Stock and no shares of Preferred Stock were outstanding.
 
COMMON STOCK
 
     Each holder of the Common Stock is entitled to one vote per share with
respect to all matters submitted to holders of the Common Stock. The Common
Stock does not have cumulative voting rights. Subject to the rights of holders
of Preferred Stock, holders of the Common Stock will be entitled to receive
dividends if, as and when declared by the Board of Directors of the Company.
Upon dissolution, liquidation or winding up of the Company, holders of the
Common Stock are entitled to share pro rata in all assets remaining after the
liquidation payments have been made on any outstanding shares of Preferred
Stock.
 
PREFERRED STOCK
 
     Shares of Preferred Stock may be issued in one or more series or classes,
which will have such designation, voting powers, preferences and relative,
participating, optional or other rights and such qualifications, limitations or
restrictions thereon, including voting rights, dividends, rights on liquidation,
dissolution or winding up, conversion or exchange rights and redemption
provisions, as set forth in the resolutions adopted by the Board of Directors
providing for the issuance of such stock and as permitted by the Delaware
General Corporation Law (the "DGCL"). The specific terms of a particular series
of Preferred Stock offered hereby will be described in a Prospectus Supplement
relating to such series and will include the following: (a) the maximum number
of shares to constitute the series and the distinctive designation thereof; (b)
the annual dividend rate, if any, on shares of the series (or the method of
calculating such rate), whether such rate is fixed or variable or both, the date
or dates from which dividends will begin to accrue or accumulate, and whether
dividends will be cumulative; (c) whether the shares of the series will be
redeemable and, if so, the price at and the terms and conditions on which such
shares may be redeemed, including the time during which such shares may be
redeemed and any accumulated dividends thereon that the holders of such shares
shall be entitled to receive upon the redemption thereof; (d) the liquidation
preference, if any, applicable to shares of the series; (e) whether the shares
of the series will be subject to operation of a retirement or sinking fund and,
if so, the extent and manner in which any such fund shall be applied to the
purchase or redemption of such shares for retirement or for other corporate
purposes, and the terms and provisions relating to the operation of such fund;
(f) the terms and conditions, if any, on which the shares of the series will be
convertible into, or exchangeable for, shares of any other class or classes of
capital stock of the Company or another corporation or any series of any other
class or classes, or of any other series of the same class, including the price
or rate of conversion or exchange and the method, if any, of adjusting the same;
(g) the voting rights, if any, on the shares of the series, provided, however,
that such voting rights cannot be other than one vote per share; and (h) any
other preferences and relative, participating, optional, or other special rights
or qualifications, limitations, or restrictions thereof.
 
     The Preferred Stock will, when issued, be fully paid and nonassessable.
 
     Although the Company has no current plans to issue Preferred Stock, the
issuance of shares of Preferred Stock, or the issuance of securities convertible
into or exchangeable for such shares, could be used to discourage an unsolicited
acquisition proposal that some or a majority of the stockholders believe to be
in their interests or in which stockholders are to receive a premium for their
stock over the current market price. In addition, the issuance of Preferred
Stock could adversely affect the voting power of the holders of Common
 
                                       14
<PAGE>   16
 
Stock. The Board of Directors does not presently intend to seek stockholder
approval prior to any issuance of currently authorized stock, unless otherwise
required by law or stock exchange rules.
 
RIGHTS PLAN
 
     In 1995, the Company adopted a stockholder rights plan and declared a
dividend of one right (a "Right") for each share of Common Stock then
outstanding. As presently amended, the Rights (which, under certain
circumstances, entitle their holders to purchase one one-hundredth of a share of
Series A Junior Participating Preferred Stock for a present exercise price of
$300) will expire on October 31, 2007.
 
     The Rights are not exercisable until the earlier to occur of (i) 10 days
following the first date of public announcement that a person or group of
affiliated persons (an "Acquiring Person") has acquired beneficial ownership of
20% or more of the outstanding shares of Common Stock or such earlier date as a
majority of the Board of Directors shall become aware of the existence of an
Acquiring Person (the "Stock Acquisition Date") or (ii) 10 business days (or
such later date as may be determined by action of the Board of Directors prior
to such time as any person or group of affiliated persons becomes an Acquiring
Person) following the commencement of, or announcement of an intention to make,
a tender offer or exchange offer the consummation of which would result in the
beneficial ownerships by a person or group of 20% or more of the outstanding
shares of Common Stock.
 
     In the event that any person becomes an Acquiring Person, each holder of a
Right, other than Rights beneficially owned by the Acquiring Person (which will
thereupon become void), will thereafter have the right to receive upon exercise
of a Right at the then current exercise price of the Right, that number of
shares of Common Stock having a market value (as defined in the plan) of two
times the exercise price of the Right. In the event that, after a person or
group has become an Acquiring Person, the Company is acquired in a merger or
other business combination transaction or 50% or more of its consolidated assets
or earning power are sold, each holder of a Right other than Rights beneficially
owned by an Acquiring Person (which will have become void) will thereafter have
the right to receive, upon the exercise of the Right at the then current
exercise price of the Right, that number of shares of common stock of the person
with whom the Company has engaged in the foregoing transaction having a market
value (as defined in the plan) of two times the exercise price of the Right.
 
     At any time until 10 days following the Stock Acquisition Date (subject to
extension by the Board of Directors), the Company may redeem the Rights in
whole, but not in part, at a price of $.01 per Right.
 
     The Rights have certain anti-takeover effects. They may reduce or eliminate
(i) "two-tiered" or other partial offers which do not offer fair value for all
Common Stock; (ii) the accumulation by a third party of 20% or more of the
Common Stock in open-market or private purchases in order to influence or
control the business and affairs of the Company without paying an appropriate
premium for a controlling position in the Company; and (iii) the accumulation of
shares of Common Stock by third parties in market transactions for the primary
purpose of attempting to cause the Company to be sold. In addition, the Rights
will cause substantial dilution to a person or group that attempts to acquire
the Company in a manner defined as a Triggering Event unless the offer is
conditioned on a substantial number of Rights being acquired. The Rights,
however, should not affect any prospective offeror willing to make an offer for
all outstanding shares of Common Stock and other voting securities at a price
and on other terms which are in the best interests of the Company and its
stockholders as determined by the Board of Directors or affect any prospective
offeror willing to negotiate with the Board of Directors since the Rights would
either be redeemed or otherwise made inapplicable. The Rights should not
interfere with any merger or other business combination approved by the Board of
Directors since the Board of Directors may, at its option, at any time until ten
business days following the Stock Acquisition Date, redeem all, but not less
than all, of the then outstanding Rights at the $.01 redemption price.
 
SPECIAL PROVISIONS OF DELAWARE LAW AND THE COMPANY'S CERTIFICATE OF
INCORPORATION
 
     Anti-Takeover Provisions. The Company is a Delaware corporation and is
subject to Section 203 of the DGCL. In general, Section 203 prevents an
"interested stockholder" (defined generally as a person owning
 
                                       15
<PAGE>   17
 
15% or more of the Company's outstanding voting stock) from engaging in a
"business combination" (as defined in Section 203) with the Company for three
years following the date that person becomes an interested stockholder unless
(a) before that person became an interested stockholder, the Company's Board of
Directors approved the transaction in which the interested stockholder became an
interested stockholder or approved the business combination, (b) upon completion
of the transaction that resulted in the interested stockholder's becoming an
interested stockholder, the interested stockholder owns at least 85% of the
Company's voting stock outstanding at the time the transaction commenced
(excluding stock held by directors who are also officers of the Company and by
employee stock plans that do not provide employees with the right to determine
confidentially whether shares held subject to the plan will be tendered in a
tender or exchange offer), or (c) following the transaction in which that person
became an interested stockholder, the business combination is approved by the
Company's Board of Directors and authorized at a meeting of stockholders by the
affirmative vote of the holders of at least two-thirds of the outstanding
Company voting stock not owned by the interested stockholder.
 
     Under Section 203, these restrictions do not apply to certain business
combinations proposed by an interested stockholder following the announcement or
notification of one of certain extraordinary transactions involving the Company
and a person who was not an interested stockholder during the previous three
years or who became an interested stockholder with the approval of a majority of
the Company's directors, if that extraordinary transaction is approved or not
opposed by a majority of the directors who were directors before any person
became an interested stockholder in the previous three years or who were
recommended for election or elected to succeed such directors by a majority of
such directors then in office.
 
     The Amended Certificate of Incorporation of the Company (the "Certificate")
requires that any "business combination" involving the Company and a person who
beneficially owns 20% or more of the Common Stock must be approved by the
holders of at least 80% of the voting power of the outstanding shares of the
Company's capital stock (the "Voting Requirement"), voting together as a single
class. The Voting Requirement does not apply if either (i) the business
combination is approved by a two-thirds vote of the Continuing Directors (as
defined in the Certificate) or (ii) certain "fair price" and disclosure
conditions are met.
 
     Limitation of Director Liability. Section 102(b)(7) of the DGCL ("Section
102(b)") authorizes corporations to limit or to eliminate the personal liability
of directors to corporations and their stockholders for monetary damages for
breach of directors' fiduciary duty of care. Although Section 102(b) does not
change directors' duty of care, it enables corporations to limit available
relief to equitable remedies such as injunction or rescission. The Certificate
limits the liability of directors to the Company or its stockholders to the
fullest extent permitted by Section 102(b). Specifically, directors of the
Company will not be personally liable for monetary damages for breach of a
director's fiduciary duty as a director, except for liability (i) for any breach
of the director's duty of loyalty to the Company or its stockholders; (ii) for
acts or omissions not in good faith, or which involve intentional misconduct or
a knowing violation of law; (iii) for unlawful payments of dividends or unlawful
stock repurchases or redemptions as provided in Section 174 of the DGCL; or (iv)
for any transaction from which the director derived an improper personal
benefit. In the view of the Commission, the limitation of monetary liability
pursuant to state law does not apply to liabilities under the federal securities
laws.
 
                                       16
<PAGE>   18
 
                            DESCRIPTION OF WARRANTS
 
     The Company may issue Warrants, including Warrants to purchase Debt
Securities ("Debt Warrants"), Preferred Stock, Common Stock or other of its
securities. Warrants may be issued independently or together with any such
securities of the Company and may be attached to or separate from such
securities of the Company. The Warrants are to be issued under warrant
agreements (each a "Warrant Agreement") to be entered into between the Company
and a bank or trust company, as warrant agent (the "Warrant Agent"), all as
shall be set forth in the Prospectus Supplement relating to any Warrants offered
pursuant thereto. The description of the terms of the Warrants that are set
forth below and that will be set forth in the applicable Prospectus Supplement
do not purport to be complete and are qualified in their entirety by reference
to the Warrant Agreement and warrant certificate relating to such Warrants.
 
DEBT WARRANTS
 
     The applicable Prospectus Supplement will describe the terms of Debt
Warrants offered thereby, the Warrant Agreement relating to such Debt Warrants
and the warrant certificates representing such Debt Warrants, including the
following: (i) the specific designation of such Debt Warrants; (ii) the Debt
Securities of the Company for which such Debt Warrants are exercisable; (iii)
the aggregate number of such Debt Warrants to be issued; (iv) the principal
amount of Debt Securities purchasable upon exercise of each Debt Warrant, and
the price or prices at which such Debt Warrants will be issued; (v) the
procedures and conditions relating to the exercise of such Debt Warrants; (vi)
the designation and terms of any related Debt Securities of the Company with
which such Debt Warrants are issued, and the number of such Debt Warrants issued
with each such Debt Security; (vii) the date, if any, on and after which such
Debt Warrants and any such related securities of the Company will be separately
transferable; (viii) the date on which the right to exercise such Debt Warrants
shall commence, and the date on which such right shall expire; (ix) the maximum
or minimum number of such Debt Warrants which may be exercised at any time; (x)
if applicable, a discussion of material United States federal income tax
considerations; (xi) any other terms of such Debt Warrants and terms, procedures
and limitations relating to the exercise of such Debt Warrants; and (xii) the
terms of the securities of the Company purchasable upon exercise of such Debt
Warrants. Prior to the exercise of their Debt Warrants, holders of Debt Warrants
exercisable for Debt Securities will not have any of the rights of holders of
the Debt Securities purchasable upon such exercise and will not be entitled to
payments of principal (or premium, if any) or interest, if any, on the Debt
Securities purchasable upon such exercise.
 
OTHER WARRANTS
 
     The Company may issue other Warrants. The applicable Prospectus Supplement
will describe the following terms of any such other Warrants in respect of which
this Prospectus is being delivered, including the following: (i) the title of
such Warrants; (ii) the securities (which may include Preferred Stock or Common
Stock) for which such Warrants are exercisable; (iii) the price or prices at
which such Warrants will be issued; (iv) if applicable, the designation and
terms of any other Securities with which such Warrants are issued, and the
number of such Warrants issued with each such other Security; (v) if applicable,
the date on and after which such Warrants and any related Security will be
separately transferable; (vi) if applicable, a discussion of material United
States federal income tax considerations; and (vii) any other terms of such
Warrants, including terms, procedures and limitations relating to the exchange
and exercise of such Warrants. The applicable Prospectus Supplement will also
set forth (a) the amount of securities called for by such Warrants, and, if
applicable, the amount of Warrants outstanding, and (b) information relating to
provisions, if any, for a change in the exercise price or the expiration date of
such Warrants and the kind, frequency and timing of any notice to be given.
Prior to the exercise of their Warrants for shares of Preferred Stock or Common
Stock, holders of such Warrants will not have any rights of holders of the
Preferred Stock or Common Stock purchasable upon such exercise and will not be
entitled to dividend payments, if any, or voting rights of the Preferred Stock
or Common Stock purchasable upon such exercise.
 
                                       17
<PAGE>   19
 
EXERCISE OF WARRANTS
 
     Each Warrant will entitle the holder thereof to purchase for cash or other
consideration such principal amount or such number of securities of the Company,
as the case may be, at such exercise price as shall in each case be set forth
in, or be determinable as set forth in, the Prospectus Supplement relating to
the Warrants offered thereby. Warrants may be exercised as set forth in the
Prospectus Supplement relating to the Warrants offered thereby at any time up to
the close of business on the expiration date set forth in such Prospectus
Supplement. After the close of business on the expiration date (or such later
expiration date as may be extended by the Company), unexercised Warrants will
become void.
 
     Upon receipt of payment and the warrant certificate properly completed and
duly executed at the corporate trust office of the Warrant Agent or any other
office indicated in the applicable Prospectus Supplement, the Company will, as
soon as practicable, forward the securities purchasable upon such exercise. If
less than all of the Warrants represented by such warrant certificate are
exercised, a new warrant certificate will be issued for the remaining Warrants.
 
MODIFICATIONS
 
     Any Warrant Agreement and the terms of the Warrants and the Warrant
Certificates may be amended by the Company and the Warrant Agent, without the
consent of the holders, for the purpose of curing any ambiguity, or of curing,
correcting or supplementing any defective or inconsistent provision therein or
in any other manner which the Company may deem necessary or desirable and which
will not adversely affect the interests of the holders in any material respect.
 
                              PLAN OF DISTRIBUTION
 
     The Company may sell the Securities in and/or outside the United States:
(i) through underwriters or dealers; (ii) directly to purchasers or to a single
purchaser; or (iii) through agents. The Prospectus Supplement with respect to
the Offered Securities will set forth the terms of the offering of the Offered
Securities, including the name or names of any underwriters or agents, the
purchase price of the Offered Securities and the proceeds to the Company from
such sale, any delayed delivery arrangements, any underwriting discounts and
other items constituting underwriters' compensation, any initial public offering
price and any discounts or concessions allowed or reallowed or paid to dealers.
Any initial public offering price and any discounts or concessions allowed or
reallowed or paid to dealers may be changed from time to time.
 
     If underwriters are used in the sale, the Offered Securities will be
acquired by the underwriters for their own account and may be resold from time
to time in one or more transactions, including negotiated transactions, at a
fixed public offering price or at varying prices determined at the time of sale.
The Securities may be offered to the public either through underwriting
syndicates represented by one or more managing underwriters or directly by one
or more firms acting as underwriters. The underwriter or underwriters with
respect to a particular underwritten offering of Securities to be named in the
Prospectus Supplement relating to such offering and, if an underwriting
syndicate is used, the managing underwriter or underwriters will be set forth on
the cover of such Prospectus Supplement. Unless otherwise set forth in the
Prospectus Supplement relating thereto, the obligations of the underwriters to
purchase the Offered Securities will be subject to conditions precedent and the
underwriters will be obligated to purchase all the Offered Securities if any are
purchased.
 
     During and after an offering through underwriters, such underwriters may
purchase and sell the Securities in the open market. These transactions may
include overallotment and stabilizing transactions and purchases to cover
syndicate short positions created in connection with the offering. The
underwriters may also impose a penalty bid, whereby selling concessions allowed
to syndicate members or other broker-dealers for the Offered Securities sold for
their account may be reclaimed by the syndicate if such Offered Securities are
repurchased by the syndicate in stabilizing or covering transactions. These
activities may stabilize, maintain or otherwise affect the market price of the
Offered Securities, which may be higher than the price that might otherwise
prevail in the open market, and, if commenced, may be discontinued at any time.
 
                                       18
<PAGE>   20
 
     If dealers are utilized in the sale of Offered Securities in respect of
which this Prospectus is delivered, the Company will sell such Offered
Securities to dealers as principals. The dealers may then resell such Offered
Securities to the public at varying prices to be determined by such dealers at
the time of resale. The names of the dealers and the terms of the transaction
will be set forth in the Prospectus Supplement relating thereto.
 
     The Securities may be sold directly by the Company or through agents
designated by the Company from time to time. Any agent involved in the offer or
sale of the Offered Securities in respect to which this Prospectus is delivered
will be named, and any commissions payable by the Company to such agent will be
set forth, in the Prospectus Supplement relating thereto. Unless otherwise
indicated in the Prospectus Supplement, any such agent will be acting on a best
efforts basis for the period of its appointment.
 
     The securities may be sold directly by the Company to institutional
investors or others, who may be deemed to be underwriters within the meaning of
the Securities Act with respect to any sale thereof. The terms of any such sales
will be described in the Prospectus Supplement relating thereto.
 
     If so indicated in the Prospectus Supplement, the Company will authorize
agents, underwriters or dealers to solicit offers from certain types of
institutions to purchase Offered Securities from the Company at the public
offering price set forth in the Prospectus Supplement pursuant to delayed
delivery contracts providing for payment and delivery on a specified date in the
future. Such contracts will be subject only to those conditions set forth in the
Prospectus Supplement, and the Prospectus Supplement will set forth the
commission payable for solicitation of such contracts.
 
     Agents, dealers and underwriters may be entitled under agreements entered
into with the Company to indemnification by the Company against certain civil
liabilities, including liabilities under the Securities Act, or to contribution
with respect to payments which such agents, dealers or underwriters may be
required to make in respect thereof. Agents, dealers and underwriters may be
customers of, engage in transactions with, or perform services on behalf of the
Company in the ordinary course of business.
 
     The Securities may or may not be listed on a national securities exchange.
No assurances can be given that there will be a market for the Securities.
 
                                 LEGAL MATTERS
 
     Certain legal matters in connection with the Securities offered hereby will
be passed upon for the Company by Franklin Myers, senior vice president, general
counsel and corporate secretary of the Company, and for any underwriters or
agents by Baker & Botts, L.L.P., Houston, Texas. At March 31, 1998, Mr. Myers
owned beneficially 44,684 shares of Common Stock and held options to acquire an
additional 417,721 shares.
 
                                    EXPERTS
 
     The consolidated financial statements of the Company incorporated by
reference in the Company's Annual Report (Form 10-K) for the year ended December
31, 1997, have been audited by Ernst & Young LLP, independent auditors, as set
forth in their report thereon incorporated by reference therein and herein. Such
consolidated financial statements are incorporated herein by reference in
reliance upon such report given upon the authority of such firm as experts in
accounting and auditing.
 
                                       19
<PAGE>   21
 
                                    PART II
 
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 14. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.
 
     The estimated maximum expenses payable by the Registrant in connection with
the offering of the Securities to be registered and offered hereby are as
follows:
 
<TABLE>
<S>                                                           <C>
Commission registration fee.................................  $147,500
Printing expenses...........................................   100,000
Legal fees and expenses.....................................   150,000
Accounting fees and expenses................................    50,000
Blue Sky fees and expenses..................................    10,000
Trustee and/or transfer agency fees.........................    10,000
Rating agency fees..........................................   190,000
Miscellaneous...............................................    42,500
                                                              --------
          Total.............................................  $700,000
</TABLE>
 
ITEM 15. INDEMNIFICATION OF DIRECTORS AND OFFICERS.
 
     Section 145 of the DGCL permits a corporation to indemnify any person who
was or is a party or is threatened to be made a party to any threatened, pending
or completed action, suit or proceeding, whether civil, criminal, administrative
or investigative, by reason of the fact that he is or was a director, officer,
employee or agent of the corporation or is or was serving at the request of the
corporation as a director, officer, employee or agent of another corporation,
partnership, joint venture, trust or other enterprise against expenses
(including attorneys' fees), judgments, fines and amounts paid in settlement
actually and reasonably incurred by him in connection with such action.
 
     In a suit brought to obtain a judgment in the corporation's favor, whether
by the corporation itself or derivatively by a stockholder, the corporation may
only indemnify for expenses, including attorney's fees, actually and reasonably
incurred in connection with the defense or settlement of the case, and the
corporation may not indemnify for amounts paid in satisfaction of a judgment or
in settlement of the claim. In any such action, no indemnification may be paid
in respect of any claim, issue or matter as to which such persons shall have
been adjudged liable to the corporation except as otherwise approved by the
Delaware Court of Chancery or the court in which the claim was brought. In any
other type of proceeding, the indemnification may extend to judgments, fines and
amounts paid in settlement, actually and reasonably incurred in connection with
such other proceedings, as well as to expenses (including attorneys' fees).
 
     The statute does not permit indemnification unless the person seeking
indemnification has acted in good faith and in a manner he reasonably believed
to be in, or not opposed to, the best interests of the corporation and, in the
case of criminal actions or proceedings, the person had no reasonable cause to
believe his conduct was unlawful. There are additional limitations applicable to
criminal actions and to actions brought by or in the name of the corporation.
The determination as to whether a person seeking indemnification has met the
required standard of conduct is to be made (i) by a majority vote of a quorum of
disinterested members of the board of directors; or (ii) by independent legal
counsel in a written opinion, if such a quorum does not exist or if the
disinterested directors so direct; or (iii) by the stockholders.
 
     The Certificate and bylaws of the Registrant require the Registrant to
indemnify the Registrant's directors and officers to the fullest extent
permitted under Delaware law, and to implement provisions pursuant to
contractual indemnity agreements the Company has entered into with its directors
and executive officers. The Certificate limits the personal liability of a
director to the Registrant or its stockholders to damages for breach of the
director's fiduciary duty. The Registrant has purchased insurance on behalf of
its directors and officers against certain liabilities that may be asserted or
incurred by such persons in their capacities as directors or officers of the
Registrant, or that may arise out of their status as directors or officers of
the Registrant, including liabilities under the federal and state securities
laws.
 
                                      II-1
<PAGE>   22
 
ITEM 16. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.
 
     The following is a list of all the exhibits and financial statement
schedules filed as part of this Registration Statement.
 
  (a) Exhibits
 
<TABLE>
<C>                      <S>
          +1.1           -- Form of Underwriting Agreement or comparable distribution
                            agreement, if any.
           4.1           -- Form of Rights Agreement, dated as of May 1, 1995,
                            between the Registrant and First Chicago Trust Company of
                            New York, as Rights Agent, filed as Exhibit 4.1 to the
                            Registrant's Registration Statement on Form S-8 (File No.
                            33-94948), and incorporated herein by reference.
           4.2           -- First Amendment to Rights Agreement dated November 1,
                            1997, between the Registrant and First Chicago Trust
                            Company of New York, filed as Exhibit 4.2 to Registrant's
                            Annual Report on Form 10-K for 1997 of the Registrant,
                            and incorporated herein by reference.
          *4.3           -- Form of Indenture between the Registrant and The First
                            National Bank of Chicago, as trustee (Senior Indenture).
          *4.4           -- Form of Indenture between the Registrant and           ,
                            as trustee (Subordinated Indenture).
           4.5           -- Registrant's Amended and Restated Certificate of
                            Incorporation dated June 30, 1995, filed as Exhibit 4.2
                            to Registrant's Registration Statement on Form S-8
                            (Commission File No. 33-94948), and incorporated herein
                            by reference.
           4.6           -- Registrant's First Amended and Restated Bylaws as amended
                            December 12, 1996, filed as Exhibit 3.2 to Registrant's
                            Annual Report on Form 10-K for 1996 and incorporated
                            hereby by reference.
          *5.1           -- Opinion of Franklin Myers, Registrant's general counsel,
                            as to the legality of the Securities.
         *12             -- Computation of ratio of earnings to fixed charges.
         *23.1           -- Consent of Franklin Myers (included in Exhibit 5.1).
         *23.2           -- Consent of Ernst & Young LLP.
         *24.1           -- Power of Attorney (included as part of the signature page
                            of this Registration Statement).
         *25.1           -- Statement of Eligibility and Qualification under the
                            Trust Indenture Act of 1939 of The First National Bank of
                            Chicago, as trustee (Senior Debt).
          25.2           -- Statement of Eligibility and Qualification under the
                            Trust Indenture Act of 1939 of           , as trustee
                            (Subordinated Debt). (To be filed per Section 305(b)(2)
                            of the Trust Indenture Act; see Undertaking (e) in Item
                            17.)
</TABLE>
 
- ---------------
 
+ Pursuant to Instruction (1) to Description of Exhibits in Item 601 of
  Regulation S-K, to be filed as an Exhibit to a report on Form 8-K.
 
*  Filed herewith.
 
  (b) Financial Statement Schedules
 
     Schedules are omitted since the information required to be submitted has
been included in the consolidated financial statements of the Registrant or the
notes thereto, incorporated by reference herein, or the information is not
required.
 
                                      II-2
<PAGE>   23
 
ITEM 17. UNDERTAKINGS.
 
     (a) The undersigned Registrant hereby undertakes:
 
          (1) To file, during any period in which offers or sales are being
     made, a post-effective amendment to this registration statement:
 
             (i) To include any prospectus required by Section 10(a)(3) of the
        Securities Act of 1933;
 
             (ii) To reflect in the prospectus any facts or events arising after
        the effective date of the registration statement (or the most recent
        post-effective amendment thereof) which, individually or in the
        aggregate, represent a fundamental change in the information set forth
        in the registration statement. Notwithstanding the foregoing, any
        increase or decrease in volume of securities offered (if the total
        dollar value of securities offered would not exceed that which was
        registered) and any deviation from the low or high and of the estimated
        maximum offering range may be reflected in the form of prospectus filed
        with the Commission pursuant to Rule 424(b) if, in the aggregate, the
        changes in volume and price represent no more than a 20 percent change
        in the maximum aggregate offering price set forth in the "Calculation of
        Registration Fee" table in the effective registration statement;
 
             (iii) To include any material information with respect to the plan
        of distribution not previously disclosed in the registration statement
        or any material change to such information in the registration
        statement;
 
     Provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if
the information required to be included in a post-effective amendment by those
paragraphs is contained in periodic reports filed by the registrant pursuant to
section 13 or section 15(d) of the Securities Exchange Act of 1934 that are
incorporated by reference in the Registration Statement.
 
          (2) That, for the purpose of determining any liability under the
     Securities Act of 1933, each such post-effective amendment shall be deemed
     to be a new registration statement relating to the securities offered
     therein, and the offering of such securities at that time shall be deemed
     to be the initial bona fide offering thereof.
 
          (3) To remove from registration by means of a post-effective amendment
     any of the securities being registered which remain unsold at the
     termination of the offering.
 
     (b) The undersigned Registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
registrant's annual report pursuant to Section 13(a) or 15(d) of the Securities
Exchange Act of 1934 that is incorporated by reference in the registration
statement shall be deemed to be a new registration statement relating to the
securities offered therein, and the offering of such securities at that time
shall be deemed to be the initial bona fide offering thereof.
 
     (c) The undersigned Registrant hereby undertakes that, for the purpose of
determining any liability under the Securities Act of 1933:
 
          (1) The information omitted from the form of prospectus filed as a
     part of the registration statement in reliance upon Rule 430A and contained
     in the form of prospectus filed by the Registrant pursuant to Rule
     424(b)(1) or (4) or 497(h) under the Securities Act shall be deemed to be
     part of the registration statement as of the time it was declared
     effective; and
 
          (2) Each post-effective amendment that contains a form of prospectus
     shall be deemed to be a new registration statement relating to the
     securities offered therein, and the offering of such securities at that
     time shall be deemed to be the initial bona fide offering thereof.
 
     (d) The undersigned Registrant hereby undertakes that insofar as
indemnification for liabilities arising under the Securities Act may be
permitted to directors, officers and controlling persons of the Registrant
pursuant to the foregoing provisions or otherwise, the Registrant has been
advised that in the opinion of the
 
                                      II-3
<PAGE>   24
 
Commission such indemnification is against public policy as expressed in the
Securities Act of 1933 and is, therefore, unenforceable. In the event that a
claim for indemnification against such liabilities (other than the payment by
the Registrant of expenses incurred or paid by a director, officer, or
controlling person of the registrant in the successful defense of any action,
suit or proceeding) is asserted by such director, officer or controlling person
in connection with the securities being registered, the Registrant will, unless
in the opinion of its counsel the matter has been settled by controlling
precedent, submit to a court of appropriate jurisdiction the question of whether
such indemnification by it is against public policy as expressed in the
Securities Act and will be governed by the final adjudication of such issue.
 
     (e) With respect to the Subordinated Indenture referred to in Exhibit 4.4
to this registration statement, the Registrant hereby undertakes to file an
application for the purpose of determining the eligibility of the trustee to act
under subsection (a) of section 310 of the Trust Indenture Act (the "TIA") in
accordance with the rules and regulations prescribed by the Commission under
section 305(b)(2) of the TIA.
 
                                      II-4
<PAGE>   25
                                   SIGNATURES
 
     Pursuant to the requirements of the Securities Act of 1933, the Registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this registration
statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Houston, State of Texas, on April 28, 1998.

 
                                            By    /s/ SHELDON R. ERIKSON
                                             -----------------------------------
                                                     Sheldon R. Erikson
                                              Director, Chairman, President and
                                                   Chief Executive Officer
 
     Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed by the following persons in the
capacities indicated on April 28, 1998.
 
<TABLE>
<CAPTION>
                      SIGNATURE                                            TITLE
                      ---------                                            -----
<C>                                                    <S>
 
               /s/ SHELDON R. ERIKSON                  Director, Chairman, President and Chief
- -----------------------------------------------------  Executive Officer (Principal Executive
                 Sheldon R. Erikson                    Officer)
 
                  /s/ THOMAS R. HIX                    Senior Vice President of Finance and Chief
- -----------------------------------------------------  Financial
                    Thomas R. Hix                      Officer (Principal Financial Officer)
 
              /s/ JOSEPH D. CHAMBERLAIN                Vice President and Corporate Controller
- -----------------------------------------------------  (Principal Accounting Officer)
                Joseph D. Chamberlain
 
                  /s/ GRANT A. DOVE                    Director
- -----------------------------------------------------
                    Grant A. Dove
 
                 /s/ DAVID ROSS III                    Director
- -----------------------------------------------------
                   David Ross III
 
              /s/ MICHAEL J. SEBASTIAN                 Director
- -----------------------------------------------------
                Michael J. Sebastian
 
               /s/ C. BAKER CUNNINGHAM                 Director
- -----------------------------------------------------
                 C. Baker Cunningham
 
               /s/ MICHAEL E. PATRICK                  Director
- -----------------------------------------------------
                 Michael E. Patrick
</TABLE>
 
                                      II-5
<PAGE>   26
 
                               INDEX TO EXHIBITS
 
<TABLE>
<C>                      <S>
          +1.1           -- Form of Underwriting Agreement or comparable distribution
                            agreement, if any.
           4.1           -- Form of Rights Agreement, dated as of May 1, 1995,
                            between the Registrant and First Chicago Trust Company of
                            New York, as Rights Agent, filed as Exhibit 4.1 to
                            Registrant's Registration Statement on Form S-8 (File No.
                            33-94948), and incorporated herein by reference.
           4.2           -- First Amendment to Rights Agreement dated November 1,
                            1997, between the Registrant and First Chicago Trust
                            Company of New York, filed as Exhibit 4.2 to Registrant's
                            Annual Report on Form 10-K for 1997 of the Company, and
                            incorporated herein by reference.
          *4.3           -- Form of Indenture between the Registrant and The First
                            National Bank of Chicago, as trustee (Senior Indenture).
          *4.4           -- Form of Indenture between the Registrant and           ,
                            as trustee (Subordinated Indenture).
           4.5           -- Registrant's Amended and Restated Certificate of
                            Incorporation dated June 30, 1995, filed as Exhibit 4.2
                            to Registrant's Registration Statement on Form S-8
                            (Commission File No. 33-94948), and incorporated herein
                            by reference.
           4.6           -- Registrant's First Amended and Restated Bylaws as amended
                            December 12, 1996, filed as Exhibit 3.2 to Registrant's
                            Annual Report on Form 10-K for 1996, and incorporated
                            hereby by reference.
          *5.1           -- Opinion of Franklin Myers, Registrant's general counsel,
                            as to the legality of the Securities.
         *12             -- Computation of ratio of earnings to fixed charges.
         *23.1           -- Consent of Franklin Myers (included in Exhibit 5.1).
         *23.2           -- Consent of Ernst & Young LLP.
         *24.1           -- Power of Attorney (included as part of the signature page
                            of this Registration Statement).
         *25.1           -- Statement of Eligibility and Qualification under the
                            Trust Indenture Act of 1939 of The First National Bank of
                            Chicago, as trustee (Senior Debt).
          25.2           -- Statement of Eligibility and Qualification under the
                            Trust Indenture Act of 1939 of           , as trustee
                            (Subordinated Debt). (To be filed per Section 305(b)(2)
                            of the Trust Indenture Act; see Undertaking (e) in Item
                            17.)
</TABLE>
 
- ---------------
 
+ Pursuant to Instruction (1) to Description of Exhibits in Item 601 of
  Regulation S-K, to be filed as an Exhibit to a report on Form 8-K.
 
*  Filed herewith.

<PAGE>   1

                                                                DRAFT OF 4/28/98
================================================================================




                           COOPER CAMERON CORPORATION

                                      AND

                      THE FIRST NATIONAL BANK OF CHICAGO,

                                    TRUSTEE


                         _____________________________


                                   INDENTURE

                                  DATED AS OF

                         _______________________, 1998



                                DEBT SECURITIES
                                 (SENIOR DEBT)


================================================================================

<PAGE>   2
                           Cooper Cameron Corporation

           Reconciliation and tie between Trust Indenture Act of 1939
               and Indenture, dated as of _________________, 1998

                           -------------------------


<TABLE>
<CAPTION>
Section of
Trust Indenture                                                                               Section(s) of
Act of 1939                                                                                      Indenture
- -----------                                                                                      ---------
<S>      <C>                                                                     <C>             <C>
Section 310  (a)(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        609
             (a)(2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        609
             (a)(3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        Not Applicable
             (a)(4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        Not Applicable
             (b)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        608, 610
Section 311  (a)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        613
             (b)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        613
             (c)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        Not Applicable
Section 312  (a)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        701, 702(a)
             (b)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        702(b)
             (c)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        702(c)
Section 313  (a)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        703(a)
             (b)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        703(b)
             (c)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        703(c)
             (d)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        703(d)
Section 314  (a)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        704, 1005
             (b)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        Not Applicable
             (c)(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        103
             (c)(2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        103
             (c)(3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        Not Applicable
             (d)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        Not Applicable
             (e)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        103
Section 315  (a)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        601(a)
             (b)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        602
             (c)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        601(b)
             (d)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        601(c)
             (d)(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        601(a)(1)
             (d)(2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        601(c)(2)
             (d)(3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        601(c)(3)
             (e)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        513
Section 316  (a)(1)(A). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        502, 511
             (a)(1)(B)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        512
             (a)(2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        Not Applicable
             (a)(last sentence) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        101
             (b)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        508
Section 317  (a)(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        503
             (a)(2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        504
             (b)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        1003
Section 318  (a)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        108
</TABLE>

_____________________

Note:    This reconciliation and tie shall not, for any purpose, be deemed to
be a part of the Indenture.
<PAGE>   3
                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                                     PAGE
                                                                                                                     ----
<S>                                                                                                                     <C>
RECITALS OF THE COMPANY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

                                                       ARTICLE ONE

                                             DEFINITIONS AND OTHER PROVISIONS
                                                  OF GENERAL APPLICATION

SECTION 101.  Definitions.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
         Act  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
         Additional Amounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
         Affiliate  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
         Agent Members  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
         Authenticating Agent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
         Authorized Newspaper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
         Board of Directors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
         Board Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
         Business Day . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
         Commission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
         Company  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
         "Company Request" and "Company Order"  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
         Conversion Event . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
         Corporate Trust Office . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
         Defaulted Interest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
         Depositary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
         Dollar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
         Event of Default . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
         Exchange Rate  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
         Holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
         Indenture  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
         interest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
         Interest Payment Date  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
         Judgment Currency  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
         Maturity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
         Officers' Certificate  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
         Opinion of Counsel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
         Original Issue Discount Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
         Outstanding  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
         Paying Agent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
         Person . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
         Place of Payment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
</TABLE>





                                       i
<PAGE>   4
<TABLE>
<CAPTION>
                                                                                                                     PAGE
                                                                                                                     ----
<S>                                                                                                                    <C>
         Predecessor Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
         Redemption Date 6
         Redemption Price . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
         Regular Record Date  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
         Required Currency  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
         Responsible Officer  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
         Securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
         Security Custodian . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
         Security Register  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
         Special Record Date  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
         Stated Maturity  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
         Subsidiary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
         Trustee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
         Trust Indenture Act  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
         United States  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
         United States Alien  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
         U.S. Government Obligations  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
         Vice President . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
         Wholly Owned Subsidiary  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
         Yield to Maturity  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

SECTION 102.  Incorporation by Reference of Trust Indenture Act.  . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
SECTION 103.  Compliance Certificates and Opinions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
SECTION 104.  Form of Documents Delivered to Trustee. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
SECTION 105.  Acts of Holders; Record Dates.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
SECTION 106.  Notices, Etc., to Trustee and Company.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10
SECTION 107.  Notice to Holders; Waiver.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11
SECTION 108.  Conflict With Trust Indenture Act.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11
SECTION 109.  Effect of Headings and Table of Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11
SECTION 110.   Successors and Assigns.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11
SECTION 111.  Separability Clause.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11
SECTION 112.  Benefits of Indenture.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12
SECTION 113.  Governing Law.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12
SECTION 114.  Legal Holidays. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12
SECTION 115.  Corporate Obligation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12

                                                       ARTICLE TWO

                                                      SECURITY FORMS

SECTION 201.  Forms Generally.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12
SECTION 202.  Form of Trustee's Certificate of Authentication.  . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
</TABLE>





                                       ii
<PAGE>   5
<TABLE>
<CAPTION>

                                                                                                                     PAGE
                                                                                                                     ---- 

<S>           <C>                                                                                                      <C>
SECTION 203.  Securities in Global Form.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13

                                                      ARTICLE THREE

                                                      THE SECURITIES

SECTION 301.  Amount Unlimited; Issuable in Series. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  16
SECTION 302.  Denominations.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  19
SECTION 303.  Execution, Authentication, Delivery and Dating. . . . . . . . . . . . . . . . . . . . . . . . . . . . .  19
SECTION 304.  Temporary Securities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  20
SECTION 305.  Registration, Registration of Transfer and Exchange.  . . . . . . . . . . . . . . . . . . . . . . . . .  21
SECTION 306.  Mutilated, Destroyed, Lost and Stolen Securities. . . . . . . . . . . . . . . . . . . . . . . . . . . .  22
SECTION 307.  Payment of Interest; Interest Rights Preserved. . . . . . . . . . . . . . . . . . . . . . . . . . . . .  23
SECTION 308.  Persons Deemed Owners.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  24
SECTION 309.  Cancellation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  24
SECTION 310.  Computation of Interest.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  24
SECTION 311.  CUSIP Numbers.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  24

                                                       ARTICLE FOUR

                                                SATISFACTION AND DISCHARGE

SECTION 401.  Satisfaction and Discharge of Indenture.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  25
SECTION 402.  Application of Trust Money. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27
SECTION 403.  Discharge of Liability on Securities of Any Series. . . . . . . . . . . . . . . . . . . . . . . . . . .  27
SECTION 404.  Reinstatement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  28

                                                       ARTICLE FIVE

                                                         REMEDIES

SECTION 501.  Events of Default.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  28
SECTION 502.  Acceleration of Maturity; Rescission and Annulment. . . . . . . . . . . . . . . . . . . . . . . . . . .  30
SECTION 503.  Collection of Indebtedness and Suits for Enforcement by Trustee.  . . . . . . . . . . . . . . . . . . .  31
SECTION 504.  Trustee May File Proofs of Claim. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  32
SECTION 505.  Trustee May Enforce Claims Without Possession of Securities or Coupons. . . . . . . . . . . . . . . . .  33
SECTION 506.  Application of Money Collected. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  33
SECTION 507.  Limitation on Suits.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  34
SECTION 508.  Unconditional Right of Holders to Receive Principal Premium and Interest  . . . . . . . . . . . . . . .  34
SECTION 509.  Restoration of Rights and Remedies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  35
SECTION 510.  Rights and Remedies Cumulative. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  35
SECTION 511.  Delay or Omission Not Waiver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  35
</TABLE>





                                      iii
<PAGE>   6
<TABLE>
<CAPTION>
                                                                                                                     PAGE
                                                                                                                     ----
<S>           <C>                                                                                                      <C>
SECTION 512.  Control by Holders. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  35
SECTION 513.  Waiver of Past Defaults.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  36
SECTION 514.  Undertaking for Costs.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  36
SECTION 515.   Waiver of Stay or Extension Laws.36

                                                       ARTICLE SIX

                                                       THE TRUSTEE

SECTION 601.  Certain Duties and Responsibilities.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  37
SECTION 602.  Notice of Defaults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  38
SECTION 603.  Certain Rights of Trustee.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  38
SECTION 604.  Not Responsible for Recitals or Issuance of Securities. . . . . . . . . . . . . . . . . . . . . . . . .  39
SECTION 605.  May Hold Securities.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39
SECTION 606.  Money Held in Trust.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39
SECTION 607.  Compensation and Reimbursement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  40
SECTION 608.  Disqualification; Conflicting Interests.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  40
SECTION 609.  Corporate Trustee Required; Eligibility.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  41
SECTION 610.  Resignation and Removal; Appointment of Successor.  . . . . . . . . . . . . . . . . . . . . . . . . . .  41
SECTION 611.  Acceptance of Appointment by Successor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  43
SECTION 612.  Merger, Conversion, Consolidation or Succession to Business.  . . . . . . . . . . . . . . . . . . . . .  44
SECTION 613.  Preferential Collection of Claims Against Company.  . . . . . . . . . . . . . . . . . . . . . . . . . .  44
SECTION 614.  Appointment of Authenticating Agent.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  44

                                                      ARTICLE SEVEN

                                    HOLDER'S LISTS AND REPORTS BY TRUSTEE AND COMPANY

SECTION 701.  Company to Furnish Trustee Names and Addresses of Holders.  . . . . . . . . . . . . . . . . . . . . . .  46
SECTION 702.  Preservation of Information; Communications to Holders. . . . . . . . . . . . . . . . . . . . . . . . .  46
SECTION 703.  Reports by Trustee. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  47
SECTION 704.  Reports by Company. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  47

                                                      ARTICLE EIGHT

                                   CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

SECTION 801.  Company May Consolidate, Etc., Only on Certain Terms. . . . . . . . . . . . . . . . . . . . . . . . . .  48
SECTION 802.  Successor Person Substituted. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  48
</TABLE>





                                       iv
<PAGE>   7
<TABLE>
<CAPTION>
                                                                                                                     PAGE
                                                                                                                      ----
                                                   ARTICLE NINE

                                             SUPPLEMENTAL INDENTURES

<S>          <C>                                                                                                       <C>
SECTION 901.  Supplemental Indentures Without Consent of Holders. . . . . . . . . . . . . . . . . . . . . . . . . . .  49
SECTION 902.  Supplemental Indentures With Consent of Holders.  . . . . . . . . . . . . . . . . . . . . . . . . . . .  50
SECTION 903.  Execution of Supplemental Indentures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  51
SECTION 904.  Effect of Supplemental Indentures.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  51
SECTION 905.  Conformity With Trust Indenture Act.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  51
SECTION 906.  Reference in Securities to Supplemental Indentures. . . . . . . . . . . . . . . . . . . . . . . . . . .  51

                                                       ARTICLE TEN

                                                        COVENANTS

SECTION 1001.  Payment of Principal, Premium and Interest.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  52
SECTION 1002.  Maintenance of Office or Agency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  52
SECTION 1003.  Money for Securities Payments to be Held in Trust. . . . . . . . . . . . . . . . . . . . . . . . . . .  52
SECTION 1004.  Existence. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  54
SECTION 1005.  Statement by Officers as to Default. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  54
SECTION 1006.  Waiver of Certain Covenants. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  54
SECTION 1007.  Additional Amounts.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  54

                                                      ARTICLE ELEVEN

                                                 REDEMPTION OF SECURITIES

SECTION 1101.  Applicability of Article.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  55
SECTION 1102.  Election to Redeem; Notice to Trustee. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  55
SECTION 1103.  Selection by Trustee of Securities to be Redeemed. . . . . . . . . . . . . . . . . . . . . . . . . . .  56
SECTION 1104.  Notice of Redemption.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  56
SECTION 1105.  Deposit of Redemption Price. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  57
SECTION 1106.  Securities Payable on Redemption Date. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  57
SECTION 1107.  Securities Redeemed in Part. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  57
SECTION 1108.  Purchase of Securities.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  58

                                                      ARTICLE TWELVE

                                                      SINKING FUNDS

SECTION 1201.  Applicability of Article.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  58
</TABLE>





                                       v
<PAGE>   8
<TABLE>
<CAPTION>
                                                                                                                     PAGE
                                                                                                                     ----
<S>            <C>                                                                                                     <C>
SECTION 1202.  Satisfaction of Sinking Fund Payments with Securities. . . . . . . . . . . . . . . . . . . . . . . . .  58
SECTION 1203.  Redemption of Securities for Sinking Fund. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  58

                                                     ARTICLE THIRTEEN

                                            MEETINGS OF HOLDERS OF SECURITIES

SECTION 1301.  Purposes for Which Meetings May Be Called. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  59
SECTION 1302.  Call, Notice and Place of Meetings.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  59
SECTION 1303.  Persons Entitled to Vote at Meetings.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  60
SECTION 1304.  Quorum; Action.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  60
SECTION 1305.  Determination of Voting Rights; Conduct and Adjournment of Meetings. . . . . . . . . . . . . . . . . .  61
SECTION 1306.  Counting Votes and Recording Action of Meetings. . . . . . . . . . . . . . . . . . . . . . . . . . . .  61
</TABLE>





                                      vi
<PAGE>   9
                 INDENTURE, dated as of _______________, 1998 between COOPER
CAMERON CORPORATION, a corporation duly organized and existing under the laws
of the State of Delaware (herein called the "Company"), having its principal
office at 515 Post Oak Boulevard, Suite 1200, Houston, Texas 77027, and The
First National Bank of Chicago, a national banking association, as Trustee
(herein called the "Trustee"), the office of the Trustee at which at the date
hereof its corporate trust business is principally administered being One First
National Plaza, Suite 0126, Chicago, Illinois 60670.

                            RECITALS OF THE COMPANY

                 The Company has duly authorized the execution and delivery of
this Indenture to provide for the issuance from time to time of its unsecured
debentures, notes or other evidences of indebtedness (herein called the
"Securities"), to be issued in one or more series as in this Indenture
provided.

                 This Indenture is subject to the provisions of the Trust
Indenture Act and the rules and regulations of the Commission promulgated
thereunder that are required to be part of this Indenture and, to the extent
applicable, shall be governed by such provisions.

                 All things necessary to make this Indenture a valid agreement
of the Company, in accordance with its terms, have been done.

                 NOW, THEREFORE, THIS INDENTURE WITNESSETH:

                 For and in consideration of the premises and the purchase of
the Securities by the Holders thereof, it is mutually covenanted and agreed,
for the equal and proportionate benefit of all Holders of the Securities or of
series thereof, as follows:

                                  ARTICLE ONE

                        DEFINITIONS AND OTHER PROVISIONS
                             OF GENERAL APPLICATION

SECTION 101.  Definitions.

                 For all purposes of this Indenture, except as otherwise
expressly provided or unless the context otherwise requires:

                 (1)      the terms defined in this Article have the meanings
         assigned to them in this Article and include the plural as well as the
         singular;

                 (2)      all accounting terms not otherwise defined herein
         have the meanings assigned to them in accordance with generally
         accepted accounting principles in the United States, and, except as
         otherwise herein expressly provided, the term "generally accepted
         accounting principles" with respect to any computation required or
         permitted hereunder shall mean such
<PAGE>   10
         accounting principles as are generally accepted in the United States
         at the date of such computation; and

                 (3)      the words "herein," "hereof" and "hereunder" and
         other words of similar import refer to this Indenture as a whole and
         not to any particular Article, Section or other subdivision.

                 Certain terms, used principally in Article Six, are defined 
in Section 102.

                 "Act," when used with respect to any Holder, has the meaning
specified in Section 105.

                 "Additional Amounts" means any additional amounts that are
required by the express terms of a Security or by or pursuant to a Board
Resolution, under circumstances specified therein or pursuant thereto, to be
paid by the Company with respect to certain taxes, assessments or other
governmental charges imposed on certain Holders and that are owing to such
Holders.

                 "Affiliate" of any specified Person means any other Person
directly or indirectly controlling or controlled by or under direct or indirect
common control with such specified Person.  For the purposes of this
definition, "control" when used with respect to any specified Person means the
power to direct the management and policies of such Person, directly or
indirectly, whether through the ownership of voting securities, by contract or
otherwise; and the terms "controlling" and "controlled" have meanings
correlative to the foregoing.

                 "Agent Members" has the meaning specified in Section 203.

                 "Authenticating Agent" means any Person, which may include the
Company, authorized by the Trustee to act on behalf of the Trustee pursuant to
Section 614 to authenticate Securities of one or more series.

                 "Authorized Newspaper" means a newspaper, in the English
language or in an official language of the country of publication, customarily
published on each Business Day, whether or not published on Saturdays, Sundays
or holidays, and of general circulation in the place in connection with which
the term is used or in the financial community of such place.  Where successive
publications are required to be made in Authorized Newspapers, the successive
publications may be made in the same or in different newspapers in the same
city meeting the foregoing requirements and in each case on any Business Day.

                 "Board of Directors" means either the board of directors of
the Company or any duly authorized committee of that board.

                 "Board Resolution" means a copy of a resolution certified by
the Secretary or an Assistant Secretary of the Company to have been duly
adopted by the Board of Directors and to be in full force and effect on the
date of such certification, and delivered to the Trustee.





                                       2
<PAGE>   11
                 "Business Day," when used with respect to any Place of
Payment, means each Monday, Tuesday, Wednesday, Thursday and Friday which is
not a day on which banking institutions in that Place of Payment are authorized
or obligated by law or executive order to close.

                 "Commission" means the Securities and Exchange Commission, as
from time to time constituted, created under the Securities Exchange Act of
1934, as amended, or, if at any time after the execution of this instrument
such Commission is not existing and performing the duties now assigned to it
under the Trust Indenture Act, then the body performing such duties at such
time.

                 "Company" means the Person named as the "Company" in the first
paragraph of this Indenture until a successor Person shall have become such
pursuant to the applicable provisions of this Indenture, and thereafter
"Company" shall mean such successor Person.

                 "Company Request" and "Company Order" mean, respectively, a
written request or order signed in the name of the Company by its Chairman of
the Board, its President or a Vice President, and by its Treasurer, an
Assistant Treasurer, its Controller, an Assistant Controller, its Secretary or
an Assistant Secretary, and delivered to the Trustee.

                 "Conversion Event" has the meaning specified in Section 501.

                 "Corporate Trust Office" means the principal office of the
Trustee in Chicago, Illinois at which at any particular time its corporate
trust business shall be principally administered, which office at the date
hereof is that indicated in the introductory paragraph of this Indenture.

                 "Defaulted Interest" has the meaning specified in Section 307.

                 "Depositary" means, with respect to the Securities of any
series issuable or issued in whole or in part in global form, the Person
designated as Depositary by the Company pursuant to Section 301 with respect to
the Securities of such series until a successor Depositary shall have become
such pursuant to the applicable provisions of this Indenture, and thereafter
"Depositary" shall mean or include each Person who is then a Depositary
hereunder, and if at any time there is more than one such Person, "Depositary"
as used with respect to the Securities of any series shall mean the Depositary
with respect to the Securities of that series.

                 "Dollar" or "$" means a dollar or other equivalent unit in
such coin or currency of the United States as at the time shall be legal tender
for the payment of public and private debts.

                 "Event of Default" has the meaning specified in Section 501.

                 "Exchange Rate" has the meaning specified in Section 501.

                 "Holder," when used with respect to any Security, means the
Person in whose name the Security is registered in the Security Register.





                                       3
<PAGE>   12
                 "Indenture" means this instrument as originally executed or as
it may from time to time be supplemented or amended by one or more indentures
supplemental hereto entered into pursuant to the applicable provisions hereof
and shall include the terms of particular series of Securities established as
contemplated by Section 301 and the provisions of the Trust Indenture Act that
are deemed to be a part of and govern this instrument.

                 "interest," when used with respect to an Original Issue
Discount Security which by its terms bears interest only after Maturity, means
interest payable after Maturity.

                 "Interest Payment Date," when used with respect to any
Security, means the Stated Maturity of an installment of interest on such
Security.

                 "Judgment Currency" has the meaning specified in Section 506.

                 "Maturity," when used with respect to any Security, means the
date on which the principal of such Security or an installment of principal
becomes due and payable as therein or herein provided, whether at the Stated
Maturity or by declaration of acceleration, call for redemption or otherwise.

                 "Officers' Certificate" means a certificate signed by the
Chairman of the Board, the President or a Vice President, and by the Treasurer,
the Controller, the Secretary or an Assistant Treasurer, Assistant Controller
or Assistant Secretary, of the Company, and delivered to the Trustee, which
certificate shall comply with Section 103 hereof.

                 "Opinion of Counsel" means a written opinion of counsel, who
may be counsel for or an employee of the Company, rendered, if applicable, in
accordance with Section 314(c) of the Trust Indenture Act, which opinion shall
comply with Section 103 hereof.

                 "Original Issue Discount Security" means any Security which
provides for an amount less than the principal amount thereof to be due and
payable upon a declaration of acceleration of the Maturity thereof pursuant to
Section 502.

                 "Outstanding," when used with respect to Securities of a
series, means, as of the date of determination, all Securities of such series
theretofore authenticated and delivered under this Indenture, except:

                 (i)      Securities theretofore cancelled by the Trustee or
         delivered to the Trustee for cancellation;

                 (ii)     Securities for whose payment or redemption money in
         the necessary amount has been theretofore irrevocably deposited with
         the Trustee or any Paying Agent (other than the Company) in trust or
         set aside and segregated in trust by the Company (if the Company shall
         act as its own Paying Agent) for the Holders of such Securities;
         provided that, if such Securities are to be redeemed, notice of such
         redemption has been duly given pursuant to this Indenture or provision
         therefor satisfactory to the Trustee has been made; and





                                       4
<PAGE>   13
                 (iii)    Securities which have been paid pursuant to Section
         306 or in exchange for or in lieu of which other Securities have been
         authenticated and delivered pursuant to this Indenture, other than any
         such Securities in respect of which there shall have been presented to
         the Trustee proof satisfactory to it that such Securities are held by
         a bona fide purchaser in whose hands such Securities are valid
         obligations of the Company;

provided, however, that in determining whether the Holders of the requisite
principal amount of the Outstanding Securities have given any request, demand,
authorization, direction, notice, consent or waiver hereunder, or whether a
quorum is present at a meeting of Holders of Securities, (a) the principal
amount of an Original Issue Discount Security that shall be deemed to be
Outstanding for such purposes shall be the principal amount thereof that would
be due and payable as of the date of such determination upon acceleration of
the Maturity thereof pursuant to Section 502, (b) the principal amount of a
Security denominated in a foreign currency shall be the U.S. dollar equivalent,
determined by the Company on the date of original issuance of such Security, of
the principal amount (or, in the case of an Original Issue Discount Security,
the U.S. dollar equivalent, determined on the date of original issuance of such
Security, of the amount determined as provided in (a) above), of such Security
and (c) Securities owned by the Company or any other obligor upon the
Securities or any Affiliate of the Company or of such other obligor shall be
disregarded and deemed not to be Outstanding, except that, in determining
whether the Trustee shall be protected in relying upon any such request,
demand, authorization, direction, notice, consent or waiver or upon any such
determination as to the presence of a quorum, only Securities which the Trustee
knows to be so owned shall be so disregarded.  Securities so owned which have
been pledged in good faith may be regarded as Outstanding if the pledgee
establishes to the satisfaction of the Trustee the pledgee's right so to act
with respect to such Securities and that the pledgee is not the Company or any
other obligor upon the Securities or any Affiliate of the Company or of such
other obligor.

                 "Paying Agent" means any Person, which may include the
Company, authorized by the Company to pay the principal of (and premium, if
any) and interest on or Additional Amounts with respect to any one or more
series of Securities on behalf of the Company.

                 "Person" means any individual, corporation, partnership,
limited liability company, joint venture, association, joint-stock company,
trust, unincorporated organization or government or any agency or political
subdivision thereof, or any other entity of any kind.

                 "Place of Payment," when used with respect to the Securities
of any series, means the place or places where the principal of (and premium,
if any) and interest on and any Additional Amounts with respect to the
Securities of that series are payable as specified in accordance with Section
301 subject to the provisions of Section 1002.

                 "Predecessor Security" of any particular Security means every
previous Security evidencing all or a portion of the same debt as that
evidenced by such particular Security; and, for the purposes of this
definition, any Security authenticated and delivered under Section 306 in
exchange for or in lieu of a mutilated, destroyed, lost or stolen Security
shall be deemed to evidence the same debt as the mutilated, destroyed, lost or
stolen Security.





                                       5
<PAGE>   14
                 "Redemption Date," when used with respect to any Security to
be redeemed, means the date fixed for such redemption by or pursuant to the
terms of the Security and this Indenture.

                 "Redemption Price," when used with respect to any Security to
be redeemed, means the price at which it is to be redeemed pursuant to the
terms of the Security and this Indenture.

                 "Regular Record Date" for the interest payable on any Interest
Payment Date on the Securities of any series means the date specified for that
purpose as contemplated by Section 301, or, if not so specified, the last day
of the calendar month preceding such Interest Payment Date if such Interest
Payment Date is the fifteenth day of the calendar month or the fifteenth day of
the calendar month preceding such Interest Payment Date if such Interest
Payment Date is the first day of a calendar month, whether or not such day
shall be a Business Day.

                 "Required Currency" has the meaning specified in Section 506.

                 "Responsible Officer," when used with respect to the Trustee,
means the chairman or any vice chairman of the board of directors, the chairman
or any vice chairman of the executive committee of the board of directors, the
president, any vice president, the secretary, any assistant secretary, any
trust officer or assistant trust officer or any other officer of the Trustee
customarily performing functions similar to those performed by any of the above
designated officers and also means, with respect to a particular corporate
trust matter, any other officer to whom such matter is referred because of his
knowledge of and familiarity with the particular subject.

                 "Securities" has the meaning stated in the first recital of
this Indenture and more particularly means any Securities authenticated and
delivered under this Indenture.

                 "Security Custodian" means, with respect to Securities of a
series issued in global form, the Trustee for Securities of such series, acting
in its capacity as custodian with respect to the Securities of such series, or
any successor entity thereto.

                 "Security Register" and "Security Registrar" have the
respective meanings specified in Section 305.

                 "Special Record Date" for the payment of any Defaulted
Interest on the Securities of any series means a date fixed by the Trustee
pursuant to Section 307.

                 "Stated Maturity," when used with respect to any Security or
any installment of principal thereof or interest thereon, means the date
specified in such Security as the fixed date on which the principal of such
Security or such installment of principal or interest is due and payable.

                 "Subsidiary" means a corporation more than 50% of the
outstanding voting stock of which is owned, directly or indirectly, by the
Company or by one or more other Subsidiaries, or by the Company and one or more
other Subsidiaries.  For the purposes of this definition, "voting stock" means
stock which ordinarily has voting power for the election of directors, whether
at all times or only so long as no senior class of stock has such voting power
by reason of any contingency.





                                       6
<PAGE>   15
                 "Trustee" means the Person named as the "Trustee" in the first
paragraph of this Indenture until a successor Trustee shall have become such
pursuant to the applicable provisions of this Indenture, and thereafter
"Trustee" shall mean or include each Person who is then a Trustee hereunder,
and if at any time there is more than one such Person, "Trustee" as used with
respect to the Securities of any series shall mean the Trustee with respect to
Securities of that series.

                 "Trust Indenture Act" means the Trust Indenture Act of 1939 as
in force at the date as of which this instrument was executed, except as
provided in Section 905.

                 "United States" means the United States of America (including
the states and the District of Columbia) and its "possessions," which include
Puerto Rico, the U.S. Virgin Islands, Guam, American Samoa, Wake Island and the
Northern Mariana Islands.

                 "United States Alien" means any Person who, for United States
federal income tax purposes, is a foreign corporation, a non-resident alien
individual, a non-resident alien or foreign fiduciary of an estate or trust, or
a foreign partnership.

                 "U.S. Government Obligations" has the meaning specified in
Section 401.

                 "Vice President," when used with respect to the Company or the
Trustee, means any vice president, whether or not designated by a number or a
word or words added before or after the title "vice president."

                 "Wholly Owned Subsidiary" means a corporation all the
outstanding voting stock (other than any directors' qualifying shares) of which
is owned, directly or indirectly, by the Company or by one or more other Wholly
Owned Subsidiaries, or by the Company and one or more other Wholly Owned
Subsidiaries.  For the purposes of this definition, "voting stock" means stock
which ordinarily has voting power for the election of directors, whether at all
times or only so long as no senior class of stock has such voting power by
reason of any contingency.

                 "Yield to Maturity," when used with respect to any Original
Issue Discount Security, means the yield to maturity, if any, set forth on the
face thereof.

SECTION 102.  Incorporation by Reference of Trust Indenture Act.

                 Whenever this Indenture refers to a provision of the Trust
Indenture Act, the provision is incorporated by reference in and made a part of
this Indenture.  The following Trust Indenture Act terms used in this Indenture
have the following meanings:

                 "Bankruptcy Act" means the Bankruptcy Act or Title 11 of the
United States Code.

                 "indenture securities" means the Securities.

                 "indenture security holder" means a Holder.





                                       7
<PAGE>   16
                 "indenture to be qualified" means this Indenture.

                 "indenture trustee" or "institutional trustee" means the
Trustee.

                 "obligor" on the indenture securities means the Company or any
other obligor on the Securities.

                 All terms used in this Indenture that are defined by the Trust
Indenture Act, defined by Trust Indenture Act reference to another statute or
defined by Commission rule under the Trust Indenture Act and not otherwise
defined herein have the meanings assigned to them therein.

SECTION 103.  Compliance Certificates and Opinions.

                 Except as otherwise expressly provided by this Indenture, upon
any application or request by the Company to the Trustee to take any action
under any provision of this Indenture, the Company shall furnish to the Trustee
an Officers' Certificate stating that all conditions precedent, if any
(including any covenants the compliance with which constitutes a condition
precedent provided for in this Indenture relating to the proposed action have
been complied with and an Opinion of Counsel stating that in the opinion of
such counsel all such conditions precedent, if any (including any covenants the
compliance with which constitutes a condition precedent) have been complied
with, except that in the case of any such application or request as to which
the furnishing of such documents is specifically required by any provision of
this Indenture relating to such particular application or request, no
additional certificate or opinion need be furnished.

                 Every certificate or opinion with respect to compliance with a
condition or covenant provided for in this Indenture shall include

                 (1)      a statement that each Person signing such certificate
         or opinion has read such covenant or condition and the definitions
         herein relating thereto;

                 (2)      a brief statement as to the nature and scope of the
         examination or investigation upon which the statements or opinions
         contained in such certificate or opinion are based;

                 (3)      a statement that, in the opinion of each such Person,
         such Person has made such examination or investigation as is necessary
         to enable such Person to express an informed opinion as to whether or
         not such covenant or condition has been complied with; and

                 (4)      a statement as to whether, in the opinion of each
         such Person, such condition or covenant has been complied with.





                                       8
<PAGE>   17
SECTION 104.  Form of Documents Delivered to Trustee.

                 In any case where several matters are required to be certified
by, or covered by an opinion of, any specified Person, it is not necessary that
all such matters be certified by, or covered by the opinion of, only one such
Person, or that they be so certified or covered by only one document, but one
such Person may certify or give an opinion with respect to some matters and one
or more other such Persons as to other matters, and any such Person may certify
or give an opinion as to such matters in one or several documents.

                 Any certificate or opinion of an officer of the Company may be
based, insofar as it relates to legal matters, upon a certificate or opinion
of, or representations by, counsel, unless such officer knows, or in the
exercise of reasonable care should know, that the certificate or opinion or
representations with respect to the matters upon which his certificate or
opinion is based are erroneous.  Any such certificate or Opinion of Counsel may
be based, insofar as it relates to factual matters, upon a certificate or
opinion of, or representations by, an officer or officers of the Company
stating that the information with respect to such factual matters is in the
possession of the Company, unless such counsel knows, or in the exercise of
reasonable care should know, that the certificate or opinion or representations
with respect to such matters are erroneous.

                 Where any Person is required to make, give or execute two or
more applications, requests, consents, certificates, statements, opinions or
other instruments under this Indenture, they may, but need not, be consolidated
and form one instrument.

SECTION 105.  Acts of Holders; Record Dates.

         (a)     Any request, demand, authorization, direction, notice,
consent, waiver or other action provided by this Indenture to be given or taken
by Holders may be embodied in and evidenced by one or more instruments of
substantially similar tenor signed by such Holders in person or by an agent
duly appointed in writing.  Except as herein otherwise expressly provided, such
action shall become effective when such instrument or instruments or record
thereof or both are delivered to the Trustee and, where it is hereby expressly
required, to the Company.  Such instrument or instruments and any such record
(and the action embodied therein and evidenced thereby) are herein sometimes
referred to as the "Act" of the Holders signing such instrument or instruments
and so voting at any such meeting.  Proof of execution of any such instrument
or of a writing appointing any such agent, or the holding of any Person of a
Security, shall be sufficient for any purpose of this Indenture and (subject to
Section 601) conclusive in favor of the Trustee and the Company, if made in the
manner provided in this Section.  The record of any meeting of Holders of
Securities shall be proved in the manner provided in Section 1306.

                 The Company may set in advance a record date for purposes of
determining the identity of Holders of Securities entitled to vote or consent
to any action by vote or consent authorized or permitted under this Indenture.
If a record date is fixed, those Persons who were Holders of Outstanding
Securities at such record date (or their duly designated proxies), and only
those Persons, shall be entitled with respect to such Securities to take such
action by vote or consent or to revoke any vote or consent previously given,
whether or not such Persons continue to be





                                       9
<PAGE>   18
Holders after such record date.  Promptly after any record date is set pursuant
to this paragraph, the Company, at its own expense, shall cause notice thereof
to be given to the Trustee in writing in the manner provided in Section 106 and
to the relevant Holders as set forth in Section 107.

         (b)     The fact and date of the execution by any Person of any such
instrument or writing may be proved by the affidavit of a witness of such
execution or by a certificate of a notary public or other officer authorized by
law to take acknowledgments of deeds, certifying that the individual signing
such instrument or writing acknowledged to him the execution thereof.  Where
such execution is by a signer acting in a capacity other than his individual
capacity, such certificate or affidavit shall also constitute sufficient proof
of his authority.  The fact and date of the execution of any such instrument or
writing, or the authority of the Person executing the same, may also be proved
in any other manner which the Trustee deems sufficient.

         (c)     The principal amount and serial numbers of Securities held by
any Person, and the date of holding the same, shall be proved by the Security
Register.

         (d)     Any request, demand, authorization, direction, notice,
consent, waiver or other Act of the Holder of any Security shall bind every
future Holder of the same Security and the Holder of every Security issued upon
the registration of transfer thereof or in exchange therefor or in lieu thereof
in respect of anything done, omitted or suffered to be done by the Trustee or
the Company in reliance thereon, whether or not notation of such action is made
upon such Security.  Any Holder or subsequent Holder may revoke the request,
demand, authorization, direction, notice, consent or other Act as to his
Security or portion of his Security; provided, however, that such revocation
shall be effective only if the Trustee receives the notice of revocation before
the date the Act becomes effective.

SECTION 106.  Notices, Etc., to Trustee and Company.

                 Any request, demand, authorization, direction, notice,
consent, waiver or Act of Holders or other document provided or permitted by
this Indenture to be made upon, given or furnished to, or filed with,

                 (1)      the Trustee by any Holder or by the Company shall be
         sufficient for every purpose hereunder if made, given, furnished or
         filed in writing to or with the Trustee at its Corporate Trust Office,
         Attention: Corporate Trust Administration, or

                 (2)      the Company by the Trustee or by any Holder shall be
         sufficient for every purpose hereunder (unless otherwise herein
         expressly provided) if in writing and mailed, first-class postage
         prepaid, to the Company addressed to it at the address of its
         principal office specified in the first paragraph of this Indenture or
         at any other address previously furnished in writing to the Trustee by
         the Company, Attention: Corporate Secretary.





                                       10
<PAGE>   19
SECTION 107.  Notice to Holders; Waiver.

                 Where this Indenture provides for notice to Holders of
Securities of any event, such notice shall be sufficiently given (unless
otherwise herein expressly provided) if in writing and mailed, first-class
postage prepaid, to each Holder affected by such event, at the address of such
Holder as it appears in the Security Register, not later than the latest date,
and not earlier than the earliest date, prescribed for the giving of such
notice.

                 In case by reason of the suspension of regular mail service,
or by reason of any other cause it shall be impracticable to give such notice
to Holders of Securities by mail, then such notification as shall be made with
the approval of the Trustee shall constitute a sufficient notification for
every purpose hereunder.  In any case in which notice to Holders of Securities
is given by mail, neither the failure to mail such notice, nor any defect in
any notice so mailed, to any particular Holder of a Security, shall affect the
sufficiency of such notice with respect to other Holders of Securities.

                 Where this Indenture provides for notice in any manner, such
notice may be waived in writing by the Person entitled to receive such notice,
either before or after the event, and such waiver shall be the equivalent of
such notice.  Waivers of notice by Holders shall be filed with the Trustee, but
such filing shall not be a condition precedent to the validity of any action
taken in reliance upon such waiver.

SECTION 108.  Conflict With Trust Indenture Act.

                 If any provision hereof limits, qualifies or conflicts with
any provision of the Trust Indenture Act or another provision hereof which is
required to be included in this Indenture by any of the provisions of the Trust
Indenture Act, such provision of the Trust Indenture Act shall control.  If any
provision of this Indenture modifies or excludes any provision of the Trust
Indenture Act which may be so modified or excluded, the former provision shall
be deemed to apply to this Indenture as so modified or to be excluded.

SECTION 109.  Effect of Headings and Table of Contents.

                 The Article and Section headings herein and the Table of
Contents are for convenience only and shall not affect the construction hereof.

SECTION 110.   Successors and Assigns.

                 All covenants and agreements in this Indenture by the Company
shall bind its successors and assigns, whether so expressed or not.





                                       11
<PAGE>   20
SECTION 111.  Separability Clause.

                 In case any provision in this Indenture or in the Securities
shall be invalid, illegal or unenforceable, the validity, legality and
enforceability of the remaining provisions shall not in any way be affected or
impaired thereby.

SECTION 112.  Benefits of Indenture.

                 Nothing in this Indenture or in the Securities, express or
implied, shall give to any Person, other than the parties hereto and their
successors hereunder, any Authenticating Agent, Paying Agent and Security
Registrar, and the Holders, any benefit or any legal or equitable right, remedy
or claim under this Indenture.

SECTION 113.  Governing Law.

                 This Indenture and the Securities shall be governed by and
construed in accordance with the laws of the State of New York, but without
giving effect to applicable principles of conflicts of law to the extent the
application of the laws of another jurisdiction would be required thereby.

SECTION 114.  Legal Holidays.

                 In any case where any Interest Payment Date, Redemption Date
or Stated Maturity of any Security shall not be a Business Day at any Place of
Payment, then (notwithstanding any other provision of this Indenture or of the
Securities) payment of principal and interest (and premium and Additional
Amounts, if any) need not be made at such Place of Payment on such date, but
may be made on the next succeeding Business Day at such Place of Payment with
the same force and effect as if made on the Interest Payment Date or Redemption
Date, or at the Stated Maturity, provided that no interest shall accrue with
respect to such payment for the period from and after such Interest Payment
Date, Redemption Date or Stated Maturity, as the case may be.

SECTION 115.  Corporate Obligation.

                 No recourse may be taken, directly or indirectly, against any
incorporator, subscriber to the capital stock, stockholder, officer, director
or employee of the Company or the Trustee or of any predecessor or successor of
the Company or the Trustee with respect to the Company's obligations on the
Securities or the obligations of the Company or the Trustee under this
Indenture or any certificate or other writing delivered in connection herewith.


                                  ARTICLE TWO

                                 SECURITY FORMS

SECTION 201.  Forms Generally.

                 The Securities of each series shall be in fully registered
form and in substantially such form or forms (including temporary or permanent
global form) as shall be established by or pursuant





                                       12
<PAGE>   21
to a Board Resolution or in one or more indentures supplemental hereto, in each
case with such appropriate insertions, omissions, substitutions and other
variations as are required or permitted by this Indenture and may have such
letters, numbers or other marks of identification and such legends or
endorsements placed thereon as may be required to comply with the rules of any
securities exchange or as may, consistently herewith, be determined by the
officers executing such Securities, as evidenced by their execution of the
Securities.  If temporary Securities of any series are issued in global form as
permitted by Section 304, the form thereof shall be established as provided in
the preceding sentence.  A copy of the Board Resolution establishing the form
or forms of Securities of any series (or any such temporary global Security)
shall be certified by the Secretary or an Assistant Secretary of the Company
and delivered to the Trustee at or prior to the delivery of the Company Order
contemplated by Section 303 for the authentication and delivery of such
Securities (or any such temporary global Security).

                 The definitive Securities shall be printed, lithographed or
engraved on steel engraved borders or may be produced in any other manner, all
as determined by the officers executing such Securities, as evidenced by their
execution thereof.

SECTION 202.  Form of Trustee's Certificate of Authentication.

                 The Trustee's certificate of authentication shall be in
substantially the following form:

                 "This is one of the Securities of the series designated
therein referred to in the within-mentioned Indenture.



                                      [                                    ],
                                       ------------------------------------
                                              as Trustee

                                      By
                                        ---------------------------------------
                                                 Authorized Signatory."

SECTION 203.  Securities in Global Form.

                 If Securities of a series are issuable in global form, as
contemplated by Section 301, then, notwithstanding clause (10) of Section 301
and the provisions of Section 302, any such Security shall represent such of
the Outstanding Securities of such series as shall be specified therein and may
provide that it shall represent the aggregate amount of Outstanding Securities
from time to time endorsed thereon and that the aggregate amount of Outstanding
Securities represented thereby may from time to time be reduced to reflect
exchanges.  Any endorsement of a Security in global form to reflect the amount,
or any increase or decrease in the amount, of Outstanding Securities
represented thereby shall be made by the Trustee in such manner and upon
instructions given by such Person or Persons as shall be specified in such
Security or in a Company Order to be delivered to the Trustee pursuant to
Section 303 or Section 304.  Subject to the provisions of Section 303 and, if
applicable, Section 304, the Trustee shall deliver and redeliver any Security
in permanent global form in the manner and upon instructions given by the
Person or Persons specified in such Security or in the applicable Company
Order.  With respect to the Securities of any series that are





                                       13
<PAGE>   22
represented by a Security in global form, the Company authorizes the execution
and delivery by the Trustee of a letter of representations or other similar
agreement or instrument in the form customarily provided for by the Depositary
appointed with respect to such global Security.  Any Security in global form
may be deposited with the Depositary or its nominee, or may remain in the
custody of the Security Custodian therefor pursuant to a FAST Balance
Certificate Agreement or similar agreement between the Trustee and the
Depositary.  If a Company Order pursuant to Section 303 or 304 has been, or
simultaneously is, delivered, any instructions by the Company with respect to
endorsement or delivery or redelivery of a Security in global form shall be in
writing but need not comply with Section 103 and need not be accompanied by an
Opinion of Counsel.

                 Members of, or participants in, the Depositary ("Agent
Members") shall have no rights under this Indenture with respect to any
Security issued in global form held on their behalf by the Depositary, or the
Security Custodian as its custodian, or under such global Security, and the
Depositary may be treated by the Company, the Security Custodian and any agent
of the Company or the Trustee as the absolute owner of such global Security for
all purposes whatsoever.  Notwithstanding the foregoing, (i) the registered
holder of a Security of any series issued in global form may grant proxies and
otherwise authorize any Person, including Agent Members and Persons that may
hold interests through Agent Members, to take any action that a Holder of such
series is entitled to take under this Indenture or the Securities of such
series and (ii) nothing herein shall prevent the Company, the Security
Custodian or any agent of the Company or the Security Custodian, from giving
effect to any written certification, proxy or other authorization furnished by
the Depositary or shall impair, as between the Depositary and its Agent
Members, the operation of customary practices governing the exercise of the
rights of a beneficial owner of any Security.

                 Notwithstanding Section 305, except as otherwise specified as
contemplated by Section 301, any permanent global Security shall be
exchangeable only as provided in this paragraph.  If the beneficial owners of
interests in a permanent global Security are entitled to exchange such interest
for Securities of such series and of like tenor and principal amount of another
authorized form and denomination, as specified as contemplated by Section 301,
then without unnecessary delay but in any event not later than the earliest
date on which such interests may be so exchanged, the Company shall deliver to
the Trustee definitive Securities of that series in an aggregate principal
amount equal to the principal amount of such permanent global Security,
executed by the Company.  On or after the earliest date on which such interests
may be so exchanged, such permanent global Security shall be surrendered from
time to time in accordance with instructions given to the Trustee and the
Depositary (which instructions shall be in writing but need not comply with
Section 103 or be accompanied by an Opinion of Counsel) by the Depositary or
such other depositary as shall be specified in the Company Order with respect
thereto to the Trustee, as the Company's agent for such purpose, to be
exchanged, in whole or in part, for definitive Securities of the same series
without charge and the Trustee shall authenticate and deliver, in exchange for
each portion of such permanent global Security, a like aggregate principal
amount of other definitive Securities of the same series of authorized
denominations and of like tenor as the portion of such permanent global
Security to be exchanged; provided, however, that no such exchanges may occur
during a period beginning at the opening of business 15 days before any
selection of Securities of that series is to be redeemed and ending on the
relevant Redemption Date.  Promptly following any such exchange in part, such
permanent global Security marked to evidence





                                       14
<PAGE>   23
the partial exchange shall be returned by the Trustee to the Depositary or such
other depositary referred to above in accordance with the instructions of the
Company referred to above.  If a definitive Security is issued in exchange for
any portion of a permanent global Security after the close of business at the
office or agency where such exchange occurs on (i) any Regular Record Date and
before the opening of business at such office or agency on the relevant
Interest Payment Date, or (ii) any Special Record Date and before the opening
of business at such office or agency on the related proposed date for payment
of Defaulted Interest, interest or Defaulted Interest, as the case may be, will
not be payable on such Interest Payment Date or proposed date for payment, as
the case may be, in respect of such Security, but will be payable on such
Interest Payment Date or proposed for payment, as the case may be, only to the
Person to whom interest in respect of such portion of such permanent global
Security is payable in accordance with the provisions of this Indenture.

                 Notwithstanding Section 305, except as otherwise specified as
contemplated by Section 301, transfers of a Security issued in global form
shall be limited to transfers of such global Security in whole, but not in
part, to the Depositary, its successors or their respective nominees.
Interests of beneficial owners in a Security issued in global form may be
transferred in accordance with the rules and procedures of the Depositary.
Securities of any series shall be transferred to all beneficial owners of a
global Security of such series in exchange for their beneficial interests in
that global Security if, and only if, either (1) the Depositary notifies the
Company that it is unwilling or unable to continue as Depositary for the global
Security of such series and a successor Depositary is not appointed by the
Company within 90 days of such notice, (2) an Event of Default has occurred
with respect to such series and is continuing and the Security Registrar has
received a request from the Depositary or the Trustee to issue Securities of
such series in lieu of all or a portion of that global Security (in which case
the Company shall deliver Securities of such series within 30 days of such
request) or (3) the Company determines not to have the Securities of such
series represented by a global Security.

                 In connection with any transfer of a portion of the beneficial
interest in a global Security of any series to beneficial owners pursuant to
this Section 203, the Security Registrar shall reflect on its books and records
the date and a decrease in the principal amount of the global Security of that
series in an amount equal to the principal amount of the beneficial interest in
the global Security of that series to be transferred, and the Company shall
execute, and the Trustee upon receipt of a Company Order for the authentication
and delivery of Securities of that series shall authenticate and deliver, one
or more Securities of the same series of like tenor and amount.

                 In connection with the transfer of all the beneficial
interests in a global Security of any series to beneficial owners pursuant to
this Section 203, the global Security shall be deemed to be surrendered to the
Trustee for cancellation, and the Company shall execute, and the Trustee shall
authenticate and deliver, to each beneficial owner identified by the Depositary
in exchange for its beneficial interest in the global Security, an equal
aggregate principal amount of Securities of that series of authorized
denominations.

                 Neither the Company nor the Trustee will have any
responsibility or liability for any aspect of the records relating to, or
payments made on account of, Securities of any series by the Depositary, or for
maintaining, supervising or reviewing any records of the Depositary relating to





                                       15
<PAGE>   24
such Securities.  Neither the Company nor the Trustee shall be liable for any
delay by the related global Security Holder or the Depositary in identifying
the beneficial owners, and each such Person may conclusively rely on, and shall
be protected in relying on, instructions from such global Security Holder or
the Depositary for all purposes (including with respect to the registration and
delivery, and the respective principal amounts, of the Securities to be
issued).

                 The provisions of the last sentence of Section 303 shall apply
to any Security in global form if such Security was never issued and sold by
the Company and the Company delivers to the Trustee the Security in global form
together with written instructions (which need not comply with Section 103 and
need not be accompanied by an Opinion of Counsel) with regard to the reduction
in the principal amount of Securities represented thereby, together with the
written statement contemplated by the last sentence of Section 303.

                 Notwithstanding the provisions of Sections 201 and 307, unless
otherwise specified as contemplated by Section 301, payment of principal of
(and premium, if any) and interest on and any Additional Amounts with respect
to any Security in permanent global form shall be made to the Person or Persons
specified therein.

                 Notwithstanding the provisions of Section 308 and except as
provided in the preceding paragraph, the Company, the Trustee and any agent of
the Company or of the Trustee shall treat a Person as the Holder of such
principal amount of Outstanding Securities represented by a global Security as
shall be specified in a written statement, if any, of the Holder of such global
Security, which is produced to the Security Registrar by such Holder.

                 Global Securities may be issued in either temporary or
permanent form.  Permanent global Securities will be issued in definitive form.

                                 ARTICLE THREE

                                 THE SECURITIES

SECTION 301.  Amount Unlimited; Issuable in Series.

                 The aggregate principal amount of Securities which may be
authenticated and delivered under this Indenture is unlimited.

                 The Securities may be issued in one or more series.  There
shall be established in or pursuant to a Board Resolution, and set forth in an
Officers' Certificate, or established in one or more indentures supplemental
hereto, prior to the issuance of Securities of any series,

                 (1)      the title of the Securities of the series (which
         shall distinguish the Securities of the series from all other
         Securities);

                 (2)      any limit upon the aggregate principal amount of the
         Securities of the series which may be authenticated and delivered
         under this Indenture (except for Securities





                                       16
<PAGE>   25
         authenticated and delivered upon registration of transfer of, or in
         exchange for, or in lieu of, other Securities of the series pursuant
         to Section 304, 305, 306, 906 or 1107);

                 (3)      whether any Securities of the series are to be
         issuable initially in temporary global form and whether any Securities
         of the series are to be issuable in permanent global form, and, if so,
         whether beneficial owners of interests in any such global Security may
         exchange such interests for Securities of such series and of like
         tenor of any authorized form and denomination and the circumstances
         under which any such exchanges may occur, if other than in the manner
         provided in Section 203, and the Depositary for any global Security or
         Securities of such series;

                 (4)      the manner in which any interest payable on a
         temporary global Security on any Interest Payment Date will be paid if
         other than in the manner provided in Section 304;

                 (5)      the date or dates on which the principal of (and
         premium, if any, on) the Securities of the series is payable or the
         method of determination thereof;

                 (6)      the rate or rates, or the method of determination
         thereof, at which the Securities of the series shall bear interest, if
         any, whether and under what circumstances Additional Amounts with
         respect to such Securities shall be payable, the date or dates from
         which such interest shall accrue, the Interest Payment Dates on which
         such interest shall be payable and, if other than as set forth in
         Section 101, the Regular Record Date for the interest payable on any
         Securities on any Interest Payment Date;

                 (7)      the place or places where, subject to the provisions
         of Section 1002, the principal of (and premium, if any), any interest
         on and any Additional Amounts with respect to the Securities of the
         series shall be payable;

                 (8)      the period or periods within which, the price or
         prices (whether denominated in cash, securities or otherwise) at which
         and the terms and conditions upon which Securities of the series may
         be redeemed, in whole or in part, at the option of the Company, if the
         Company is to have that option, and the manner in which the Company
         must exercise any such option if different from those set forth
         herein;

                 (9)      the obligation, if any, of the Company to redeem or
         purchase Securities of the series pursuant to any sinking fund or
         analogous provisions or at the option of a Holder thereof and the
         period or periods within which, the price or prices (whether
         denominated in cash, securities or otherwise) at which and the terms
         and conditions upon which Securities of the series shall be redeemed
         or purchased in whole or in part pursuant to such obligation;

                 (10)     the denomination in which any Securities of that
         series shall be issuable, if other than denominations of $1,000 and
         any integral multiple thereof;

                 (11)     the currency or currencies (including composite
         currencies) if other than Dollars, or the form, including equity
         securities, other debt securities (including Securities),





                                       17
<PAGE>   26
         warrants or any other securities or property of the Company or any
         other Person, in which payment of the principal of (and premium, if
         any), any interest on and any Additional Amounts with respect to the
         Securities of the series shall be payable;

                 (12)     if the principal of (and premium, if any) or interest
         on or any Additional Amounts with Respect to the Securities of the
         series are to be payable, at the election of the Company or a Holder
         thereof, in a currency or currencies (including composite currencies)
         other than that in which the Securities are stated to be payable, the
         currency or currencies (including composite currencies) in which
         payment of the principal of (and premium, if any) and interest on, and
         any Additional Amounts with respect to, Securities of such series as
         to which such election is made shall be payable, and the periods
         within which and the terms and conditions upon which such election is
         to be made;

                 (13)     if the amount of payments of principal of (and
         premium, if any), any interest on and any Additional Amounts with
         respect to the Securities of the series may be determined with
         reference to any commodities, currencies or indices, values, rates or
         prices or any other index or formula, the manner in which such amounts
         shall be determined;

                 (14)     if other than the entire principal amount thereof,
         the portion of the principal amount of Securities of the series which
         shall be payable upon declaration of acceleration of the Maturity
         thereof pursuant to Section 502;

                 (15)     any additional means of satisfaction and discharge of
         this Indenture with respect to Securities of the series pursuant to
         Section 401, any additional conditions to discharge pursuant to
         Section 401 or 403 and the application, if any, of Section 403;

                 (16)     any deletions or modifications of or additions to the
         definitions set forth in Section 101, the Events of Default set forth
         in Section 501 or covenants of the Company set forth in Article Ten
         pertaining to the Securities of the series;

                 (17)     if the Securities of the series are to be convertible
         into or exchangeable for equity securities, other debt securities
         (including Securities), warrants or any other securities or property
         of the Company or any other Person, at the option of the Company or
         the Holder or upon the occurrence of any condition or event, the terms
         and conditions for such conversion or exchange; and

                 (18)     any other terms of the series (which terms shall not
         be inconsistent with the provisions of this Indenture).

                 All Securities of any one series shall be substantially
identical except as to denomination and except as may otherwise be provided in
or pursuant to the Board Resolution referred to above and (subject to Section
303) set forth, or determined in the manner provided, in the Officers'
Certificate referred to above or in any such indenture supplemental hereto.





                                       18
<PAGE>   27
                 At the option of the Company, interest on the Securities of
any series that bears interest may be paid by mailing a check to the address of
any Holder as such address shall appear in the Security Register.

                 If any of the terms of the series are established by action
taken pursuant to a Board Resolution, a copy of an appropriate record of such
action together with such Board Resolution shall be certified by the Secretary
or an Assistant Secretary of the Company and delivered to the Trustee at or
prior to the delivery of the Officers' Certificate setting forth the terms of
the series.

SECTION 302.  Denominations.

                 The Securities of each series shall be issuable in such
denominations as shall be specified as contemplated by Section 301.  In the
absence of any such provisions with respect to the Securities of any series,
the Securities of such series denominated in Dollars shall be issuable in
denominations of $1,000 and any integral multiple thereof.  Unless otherwise
provided as contemplated by Section 301 with respect to any series of
Securities, any Securities of a series denominated in a currency other than
Dollars shall be issuable in denominations that are the equivalent, as
determined by the Company by reference to the noon buying rate in The City of
New York for cable transfers for such currency, as such rate is reported or
otherwise made available by the Federal Reserve Bank of New York, on the
applicable issue date for such Securities, of $1,000 and any integral multiple
thereof.

SECTION 303.  Execution, Authentication, Delivery and Dating.

                 The Securities shall be executed on behalf of the Company by
its Chairman of the Board, its President, its Treasurer or one of its Vice
Presidents, under its corporate seal reproduced thereon or affixed thereto
attested by its Secretary or one of its Assistant Secretaries.  The signature
of any of these officers on the Securities may be manual or facsimile.

                 Securities bearing the manual or facsimile signatures of
individuals who were at any time the proper officers of the Company shall bind
the Company, notwithstanding that such individuals or any of them have ceased
to hold such offices prior to the authentication and delivery of such
Securities or did not hold such offices at the date of such Securities.

                 At any time and from time to time after the execution and
delivery of this Indenture, the Company may deliver Securities of any series
executed by the Company to the Trustee for authentication, together with a
Company Order for the authentication and delivery of such Securities, and the
Trustee in accordance with the Company Order shall authenticate and deliver
such Securities as in this Indenture provided and not otherwise.

                 If the form or terms of the Securities of the series have been
established in or pursuant to one or more Board Resolutions or any other method
permitted by Sections 201 and 301, in authenticating such Securities, and
accepting the additional responsibilities under this Indenture in relation to
such Securities, the Trustee shall be entitled to receive, and (subject to
Section 601) shall be fully protected in relying upon, an Opinion of Counsel
stating,





                                       19
<PAGE>   28
                 (a)      if the form of such Securities has been established
         by or pursuant to Board Resolution as permitted by Section 201, that
         such form has been established in conformity with the provisions of
         this Indenture;

                 (b)      if the terms of such Securities have been established
         by or pursuant to Board Resolution as permitted by Section 301, that
         such terms have been established in conformity with the provisions of
         this Indenture; and

                 (c)      that such Securities, when authenticated and
         delivered by the Trustee and issued by the Company in the manner and
         subject to any conditions specified in such Opinion of Counsel, will
         constitute legal, valid and binding obligations of the Company,
         enforceable in accordance with their terms, except as such enforcement
         is subject to the effect of (i) bankruptcy, insolvency, fraudulent
         conveyance, reorganization or other laws relating to or affecting
         creditors' rights and (ii) general principles of equity (regardless of
         whether such enforcement is considered in a proceeding in equity or at
         law).

If such form or terms have been so established, the Trustee shall not be
required to authenticate such Securities if the issue of such Securities
pursuant to this Indenture will affect the Trustee's own rights, duties or
immunities under the Securities and this Indenture or otherwise in a manner
which is not reasonably acceptable to the Trustee.

                 Each Security shall be dated the date of its authentication.

                 No Security shall be entitled to any benefit under this
Indenture or be valid or obligatory for any purpose unless there appears on
such Security, a certificate of authentication substantially in the form
provided for herein executed by the Trustee by manual signature, and such
certificate upon any Security shall be conclusive evidence, and the only
evidence, that such Security has been duly authenticated and delivered
hereunder.  Notwithstanding the foregoing, if any Security shall have been
authenticated and delivered hereunder but never issued and sold by the Company,
and the Company shall deliver such Security to the Trustee for cancellation as
provided in Section 309 together with a written statement (which need not
comply with Section 103 and need not be accompanied by an Opinion of Counsel)
stating that such Security has never been issued and sold by the Company, for
all purposes of this Indenture such Security shall be deemed never to have been
authenticated and delivered hereunder and shall never be entitled to the
benefits of this Indenture.

SECTION 304.  Temporary Securities.

                 Pending the preparation of definitive Securities of any
series, the Company may execute, and upon Company Order the Trustee shall
authenticate and deliver, temporary Securities which are printed, lithographed,
typewritten, mimeographed or otherwise produced, in any authorized
denomination, substantially of the tenor of the definitive Securities in lieu
of which they are issued, in registered form and with such appropriate
insertions, omissions, substitutions and other variations as the officers of
the Company executing such Securities may determine, as evidenced by their
execution of such Securities.





                                       20
<PAGE>   29
                 Except in the case of temporary Securities in global form
(which shall be exchanged in accordance with the provisions of the following
paragraphs), if temporary Securities of any series are issued, the Company will
cause definitive Securities of that series to be prepared without unreasonable
delay.  After the preparation of definitive Securities of such series, the
temporary Securities of such series shall be exchangeable for definitive
Securities of such series upon surrender of the temporary Securities of such
series at the office or agency of the Company in a Place of Payment for that
series, without charge to the Holder.  Upon surrender for cancellation of any
one or more temporary Securities of any series, the Company shall execute and
the Trustee shall authenticate and deliver in exchange therefor a like
principal amount of definitive Securities of the same series of authorized
denominations.  Until so exchanged the temporary Securities of any series shall
in all respects be entitled to the same benefits under this Indenture as
definitive Securities of such series.

                 All Outstanding temporary Securities of any series shall in
all respects be entitled to the same benefits under this Indenture as
definitive Securities of the same series and of like tenor authenticated and
delivered hereunder.

SECTION 305.  Registration, Registration of Transfer and Exchange.

                 The Company shall cause to be kept for each series of
Securities at one of the offices or agencies maintained pursuant to Section
1002 a register (the register maintained in such office and in any other office
or agency of the Company in a Place of Payment being herein sometimes
collectively referred to as the "Security Register") in which, subject to such
reasonable regulations as it may prescribe, the Company shall provide for the
registration of Securities and of transfers of Securities of such series.  The
Trustee is hereby initially appointed "Security Registrar" for the purpose of
registering Securities and transfers of Securities as herein provided.

                 Except as set forth in Section 203 or as may be provided
pursuant to Section 301, upon surrender for registration of transfer of any
Security of any series at the office or agency in a Place of Payment for that
series, the Company shall execute, and the Trustee shall authenticate and
deliver, in the name of the designated transferee or transferees, one or more
new Securities of the same series and of like tenor, of any authorized
denominations and of a like aggregate principal amount.

                 At the option of the Holder, Securities of any series may be
exchanged for other Securities of the same series and of like tenor, of any
authorized denominations and of a like aggregate principal amount, upon
surrender of the Securities to be exchanged at such office or agency.  Whenever
any Securities are so surrendered for exchange, the Company shall execute, and
the Trustee shall authenticate and deliver, the Securities which the Holder
making the exchange is entitled to receive.

                 All Securities issued upon any registration of transfer or
exchange of Securities shall be the valid obligations of the Company,
evidencing the same debt, and entitled to the same benefits under this
Indenture, as the Securities surrendered upon such registration of transfer or
exchange.





                                       21
<PAGE>   30
                 Every Security presented or surrendered for registration of
transfer or for exchange shall (if so required by the Company or the Trustee)
be duly endorsed, or be accompanied by a written instrument of transfer in form
satisfactory to the Company and the Security Registrar duly executed, by the
Holder thereof or his attorney duly authorized in writing.

                 No service charge shall be made for any registration of
transfer or exchange of Securities, but the Company may require payment of a
sum sufficient to cover any tax or other governmental charge that may be
imposed in connection with any registration of transfer or exchange of
Securities, other than exchange pursuant to Section 304, 906 or 1107 not
involving any transfer.

                 The Company shall not be required (i) to issue, register the
transfer of or exchange Securities of any series during a period beginning at
the opening of business 15 days before the day of the mailing of a notice of
redemption of Securities of such series selected for redemption and ending at
the close of business on the day of the mailing of the relevant notice of
redemption or (ii) to register the transfer of or exchange any Security so
selected for redemption in whole or in part, except the unredeemed portion of
any Security being redeemed in part.

SECTION 306.  Mutilated, Destroyed, Lost and Stolen Securities.

                 If any mutilated Security is surrendered to the Trustee, the
Company shall execute and the Trustee shall authenticate and deliver in
exchange therefor a new Security of the same series and of like tenor and
principal amount and bearing a number not contemporaneously outstanding.

                 If there shall be delivered to the Company and the Trustee (i)
evidence to their satisfaction of the destruction, loss or theft of any
Security and (ii) such security or indemnity as may be required by them to save
each of them and any agent of either of them harmless, then, in the absence of
notice to the Company or the Trustee that such Security has been acquired by a
bona fide purchaser, the Company shall execute and upon its request the Trustee
shall authenticate and deliver, in lieu of any such destroyed, lost or stolen
Security, a new Security of the same series and of like tenor and principal
amount and bearing a number not contemporaneously outstanding.

                 In case any such mutilated, destroyed, lost or stolen Security
has become or is about to become due and payable, the Company in its discretion
may, instead of issuing a new Security, pay such Security.

                 Upon the issuance of any new Security under this Section, the
Company may require the payment of a sum sufficient to cover any tax or other
governmental charge that may be imposed in relation thereto and any other
expenses (including the fee and expenses of the Trustee) connected therewith.

                 Every new Security of any series issued pursuant to this
Section in lieu of any destroyed, lost or stolen Security shall constitute an
original additional contractual obligation of the Company, whether or not the
destroyed, lost or stolen Security shall be at any time enforceable by





                                       22
<PAGE>   31
anyone, and shall be entitled to all the benefits of this Indenture equally and
proportionately with any and all other Securities of that series duly issued
hereunder.

                 The provisions of this Section are exclusive and shall
preclude (to the extent lawful) all other rights and remedies with respect to
the replacement or payment of mutilated, destroyed, lost or stolen Securities.

SECTION 307.  Payment of Interest; Interest Rights Preserved.

                 Interest on any Security which is payable, and is punctually
paid or duly provided for, on any Interest Payment Date shall be paid to the
Person in whose name that Security (or one or more Predecessor Securities) is
registered at the close of business on the Regular Record Date for such
interest.  Unless otherwise provided with respect to the Securities of any
series, payment of interest may be made at the option of the Company by check
mailed or delivered to the address of any Person entitled thereto as such
address shall appear in the Security Register.

                 Any interest on any Security of any series which is payable,
but is not punctually paid or duly provided for, on any Interest Payment Date
(herein called "Defaulted Interest") shall forthwith cease to be payable to the
Holder on the relevant Regular Record Date by virtue of having been such
Holder, and such Defaulted Interest may be paid by the Company, at its election
in each case, as provided in clause (1) or (2) below:

                 (1)      The Company may elect to make payment of any
         Defaulted Interest to the Persons in whose names the Securities of
         such series (or their respective Predecessor Securities) are
         registered at the close of business on a Special Record Date for the
         payment of such Defaulted Interest, which shall be fixed in the
         following manner.  The Company shall notify the Trustee in writing of
         the amount of Defaulted Interest proposed to be paid on each Security
         of such series and the date of the proposed payment, and at the same
         time the Company shall deposit with the Trustee an amount of money
         equal to the aggregate amount proposed to be paid in respect of such
         Defaulted Interest or shall make arrangements satisfactory to the
         Trustee for such deposit prior to the date of the proposed payment,
         such money when deposited to be held in trust for the benefit of the
         Persons entitled to such Defaulted Interest as in this Clause
         provided.  Thereupon the Trustee shall fix a Special Record Date for
         the payment of such Defaulted Interest which shall be not more than 15
         days and not less than 10 days prior to the date of the proposed
         payment and not less than 10 days after the receipt by the Trustee of
         the notice of the proposed payment.  The Trustee shall promptly notify
         the Company of such Special Record Date and, in the name and at the
         expense of the Company, shall cause notice of the proposed payment of
         such Defaulted Interest and the Special Record Date therefor to be
         mailed, first-class postage prepaid, to each Holder of Securities of
         such series at his address as it appears in the Security Register, not
         less than 10 days prior to such Special Record Date.  The Trustee may,
         in its discretion, in the name and at the expense of the Company,
         cause a similar notice to be published at least once in an Authorized
         Newspaper, but such publication shall not be a condition precedent to
         the establishment of such Special Record Date.  Notice of the proposed
         payment of such Defaulted Interest and the Special Record Date
         therefor having been so mailed, such





                                       23
<PAGE>   32
         Defaulted Interest shall be paid to the Persons in whose names the
         Securities of such series (or their respective Predecessor Securities)
         are registered at the close of business on such Special Record Date
         and shall no longer be payable pursuant to the following clause (2).

                 (2)      The Company may make payment of any Defaulted
         Interest on the Securities of any series in any other lawful manner
         not inconsistent with the requirements of any securities exchange on
         which such Securities may be listed, and upon such notice as may be
         required by such exchange, if, after notice given by the Company to
         the Trustee of the proposed payment pursuant to this Clause, such
         manner of payment shall be deemed practicable by the Trustee.

                 Subject to the foregoing provisions of this Section, each
Security delivered under this Indenture, upon registration of transfer of, in
exchange for or in lieu of, any other Security, shall carry the rights to
interest accrued and unpaid, and to accrue, which were carried by such other
Security.

SECTION 308.  Persons Deemed Owners.

                 Prior to due presentment of a Security for registration of
transfer, the Company, the Trustee and any agent of the Company or the Trustee
may treat the Person in whose name such Security is registered as the owner of
such Security for the purpose of receiving payment of principal of (and
premium, if any) and (subject to Sections 305 and 307) interest on such
Security and for all other purposes whatsoever, whether or not such Security be
overdue, and neither the Company, the Trustee nor any agent of the Company or
the Trustee shall be affected by notice to the contrary.

SECTION 309.  Cancellation.

                 All Securities surrendered for payment, redemption,
registration of transfer or exchange or for credit against any sinking fund
payment shall, if surrendered to any Person other than the Trustee, be
delivered to the Trustee.  All Securities so delivered shall be promptly
cancelled by the Trustee.  The Company may at any time deliver to the Trustee
for cancellation any Securities previously authenticated and delivered
hereunder which the Company may have acquired in any manner whatsoever, and all
Securities so delivered shall be promptly cancelled by the Trustee.  No
Securities shall be authenticated in lieu of or in exchange for any Securities
cancelled as provided in this Section, except as expressly permitted by this
Indenture.  All cancelled Securities held by the Trustee shall be disposed of
as directed by a Company Order; provided that the Trustee shall not be required
to destroy such Securities.

SECTION 310.  Computation of Interest.

                 Except as otherwise specified as contemplated by Section 301
for Securities of any series, interest on the Securities of each series shall
be computed on the basis of a year of twelve 30-day months.





                                       24
<PAGE>   33
SECTION 311.  CUSIP Numbers.

                 The Company in issuing the Securities may use "CUSIP" numbers
(if then generally in use), and, if so, the Trustee shall use "CUSIP" numbers
in notices of redemption as a convenience to Holders; provided that any such
notice may state that no representation is made as to the correctness of such
numbers either as printed on the Securities or as contained in any notice of a
redemption and that reliance may be placed only on the other identification
numbers printed on the Securities, and any such redemption shall not be
affected by any defect in or omission of such numbers.

                                  ARTICLE FOUR

                           SATISFACTION AND DISCHARGE

SECTION 401.  Satisfaction and Discharge of Indenture.

                 This Indenture shall upon Company Request cease to be of
further effect with respect to Securities of a series, and the Trustee, at the
expense of the Company, shall execute proper instruments acknowledging
satisfaction and discharge of this Indenture with respect to Securities of such
series, when

                 (1)      either

                          (A)     all Securities of such series theretofore
                 authenticated and delivered (other than (i) Securities which
                 have been destroyed, lost or stolen and which have been
                 replaced or paid as provided in Section 306, and (ii)
                 Securities for whose payment money has theretofore been
                 deposited in trust or segregated and held in trust by the
                 Company and thereafter repaid to the Company or discharged
                 from such trust, as provided in Section 1003) have been
                 delivered to the Trustee for cancellation; or

                          (B)     with respect to all Outstanding Securities of
                 such series not theretofore delivered to the Trustee for
                 cancellation, the Company has deposited or caused to be
                 deposited with the Trustee as trust funds, under the terms of
                 an irrevocable trust agreement in form and substance
                 satisfactory to the Trustee, money or U.S. Government
                 Obligations maturing as to principal and interest in such
                 amounts and at such times as will (together with the income to
                 accrue thereon and without consideration of any reinvestment
                 thereof) be sufficient to pay and discharge (with such
                 delivery in trust to be for the stated purpose of paying and
                 discharging) the entire indebtedness on all Outstanding
                 Securities of such series not theretofore delivered to the
                 Trustee for cancellation for principal (and premium and
                 Additional Amounts, if any) and interest to the Stated
                 Maturity or any Redemption Date contemplated by the
                 penultimate paragraph of this Section, as the case may be; or

                          (C)     the Company has properly fulfilled such other
                 means of satisfaction and discharge as is specified, as
                 contemplated by Section 301, to be applicable to the
                 Securities of such series;





                                       25
<PAGE>   34
                 (2)      the Company has paid or caused to be paid all other
         sums payable hereunder by the Company with respect to the Outstanding
         Securities of such series;

                 (3)      the Company has complied with any other conditions
         specified pursuant to Section 301 to be applicable to the discharge of
         Securities of such series pursuant to this Section 401;

                 (4)      the Company has delivered to the Trustee an Officers'
         Certificate and an Opinion of Counsel, each stating that all
         conditions precedent herein provided for relating to the satisfaction
         and discharge of this Indenture with respect to the Outstanding
         Securities of such series have been complied with;

                 (5)      if the conditions set forth in Section 401(1)(A) have
         not been satisfied, and unless otherwise specified pursuant to Section
         301 for the Securities of such series, the Company has delivered to
         the Trustee an Opinion of Counsel to the effect that the Holders of
         Securities of such series will not recognize income, gain or loss for
         United States federal income tax purposes as a result of such deposit,
         satisfaction and discharge and will be subject to United States
         federal income tax on the same amount and in the same manner and at
         the same time as would have been the case if such deposit,
         satisfaction and discharge had not occurred; and

                 (6)      no Default or Event of Default with respect to the
         Securities of such issue shall have occurred and be continuing on the
         date of such deposit or, insofar as clauses (5) or (6) of Section 501
         are concerned, at any time in the period ending on the 91st day after
         the date of such deposit (it being understood that this condition
         shall not be deemed satisfied until the expiration of such period).

                 For the purposes of this Indenture, "U.S. Government
Obligations" means direct non-callable obligations of, or non-callable
obligations the payment of principal of and interest on which is guaranteed by,
the United States of America, or to the payment of which obligations or
guarantees the full faith and credit of the United States of America is
pledged, or beneficial interests in a trust the corpus of which consists
exclusively of money or such obligations or a combination thereof.

                 If any Outstanding Securities of such series are to be
redeemed prior to their Stated Maturity, whether pursuant to any optional
redemption provisions or in accordance with any mandatory sinking fund
requirement, the trust agreement referred to in subclause (B) of clause (1) of
this Section shall provide therefor and the Company shall make such
arrangements as are satisfactory to the Trustee for the giving of notice of
redemption by the Trustee in the name, and at the expense, of the Company.

                 Notwithstanding the satisfaction and discharge of this
Indenture with respect to the Outstanding Securities of such series pursuant to
this Section 401, the obligations of the Company to the Trustee under Section
607, the obligations to any Authenticating Agent under Section 614 and, except
for a discharge pursuant to subclause (A) of clause (1) of this Section, the
obligations of the





                                       26
<PAGE>   35
Company under Sections 305, 306, 404, 610(e), 701, 1001 and 1002 and the
obligations of the Trustee under Section 402 and the last paragraph of Section
1003 shall survive.

SECTION 402.  Application of Trust Money.

                 Subject to the provisions of the last paragraph of Section
1003, all money deposited with the Trustee pursuant to Section 401 shall be
held in trust and applied by it, in accordance with the provisions of the
Securities and this Indenture, to the payment, either directly or through any
Paying Agent (including the Company acting as its own Paying Agent) as the
Trustee may determine, to the Persons entitled thereto, of the principal (and
premium, if any) and interest and Additional Amounts for the payment of which
such money has been deposited with the Trustee.

SECTION 403.  Discharge of Liability on Securities of Any Series.

                 If this Section is specified, as contemplated by Section 301,
to be applicable to Securities of any series, the Company shall be deemed to
have paid and discharged the entire indebtedness on all the Outstanding
Securities of such series, the obligation of the Company under this Indenture
and the Securities of such series to pay the principal of (and premium, if any)
and interest on and any Additional Amounts with respect to Securities of such
series, shall cease, terminate and be completely discharged and the Trustee, at
the expense of the Company, shall execute proper instruments acknowledging such
satisfaction and discharge, when

                 (1)      the Company has complied with the provisions of
         Section 401 (other than any additional conditions specified pursuant
         to Sections 301 and 401(3) and except that the Opinion of Counsel
         referred to in Section 401(5) shall state that it is based on a ruling
         by the Internal Revenue Service or other change since the date hereof
         under applicable Federal income tax law) with respect to all
         Outstanding Securities of such series,

                 (2)      the Company has delivered to the Trustee a Company
         Request requesting such satisfaction and discharge,

                 (3)      the Company has complied with any other conditions
         specified pursuant to Section 301 to be applicable to the discharge of
         Securities of such series pursuant to this Section 403, and

                 (4)      the Company has delivered to the Trustee an Officers'
         Certificate and an Opinion of Counsel, each stating that all
         conditions precedent herein provided for relating to the discharge of
         the indebtedness on the Outstanding Securities of such series have
         been complied with.

                 Upon the satisfaction of the conditions set forth in this
Section with respect to all the Outstanding Securities of any series, the terms
and conditions of such series, including the terms and conditions with respect
thereto set forth in this Indenture, shall no longer be binding upon, or
applicable to, the Company; provided that, the Company shall not be discharged
from any payment obligations in respect of Securities of such series which are
deemed not to be Outstanding under





                                       27
<PAGE>   36
clause (iii) of the definition thereof if such obligations continue to be valid
obligations of the Company under applicable law or pursuant to Section 305 or
306.

SECTION 404.  Reinstatement

                 If the Trustee or Paying Agent is unable to apply any money or
U.S. Government Obligations deposited with respect to Securities of any series
in accordance with Section 401 by reason of any legal proceeding or by reason
of any order or judgment of any court or governmental authority enjoining,
restraining or otherwise prohibiting such application, the Company's
obligations under this Indenture with respect to the Securities of such series
and the Securities of such series shall be revived and reinstated as though no
deposit had occurred pursuant to Section 401 until such time as the Trustee or
Paying Agent is permitted to apply all such money or U.S. Government
Obligations in accordance with Section 401; provided, however, that if the
Company has made any payment of principal of (or premium, if any), or interest
on or any Additional Amounts with respect to any Securities because of the
reinstatement of its obligations, the Company shall be subrogated to the rights
of the Holders of such Securities to receive such payment from the money or
U.S. Government Obligations held by the Trustee or Paying Agent.

                                  ARTICLE FIVE

                                    REMEDIES

SECTION 501.  Events of Default.

                 "Event of Default," wherever used herein with respect to
Securities of any series, means any one of the following events (whatever the
reason for such Event of Default and whether it shall be voluntary or
involuntary or be effected by operation of law or pursuant to any judgment,
decree or order of any court or any order, rule or regulation of any
administrative or governmental body), unless it is either inapplicable to a
particular series or it is specifically deleted or modified in or pursuant to
the supplemental indenture or Board Resolution establishing such series of
Securities or in the form of Security for such series:

                 (1)      default in the payment of any interest on or any
         Additional Amounts with respect to any Security of that series when
         such interest or Additional Amounts become due and payable, and
         continuance of such default for a period of 30 days; or

                 (2)      default in the payment of the principal of (or
         premium, if any, on) any Security of that series at its Maturity; or

                 (3)      default in the deposit of any mandatory sinking fund
         payment, when and as due by the terms of a Security of that series and
         continuance of such default for a period of 30 days; or

                 (4)      default in the performance or breach of any covenant
         or warranty of the Company in this Indenture (other than a covenant or
         warranty a default in whose





                                       28
<PAGE>   37
         performance or whose breach is elsewhere in this Section specifically
         dealt with or which has expressly been included in this Indenture
         solely for the benefit of one or more series of Securities other than
         that series), and continuance of such default or breach for a period
         of 90 days after there has been given, by registered or certified
         mail, to the Company by the Trustee or to the Company and the Trustee
         by the Holders of at least 25% in principal amount of all Outstanding
         Securities a written notice specifying such default or breach and
         requiring it to be remedied and stating that such notice is a "Notice
         of Default" hereunder; or

                 (5)      the entry by a court having jurisdiction in the
         premises of (A) a decree or order for relief in respect of the Company
         in an involuntary case or proceeding under any applicable Federal or
         State bankruptcy, insolvency, reorganization or other similar law or
         (B) a decree or order adjudging the Company a bankrupt or insolvent,
         or approving as properly filed a petition seeking reorganization,
         arrangement, adjustment or composition of or in respect of the Company
         under any applicable Federal or State law, or appointing a custodian,
         receiver, liquidator, assignee, trustee, sequestrator or other similar
         official of the Company or of any substantial part of its property, or
         ordering the winding up or liquidation of its affairs, and the
         continuance of any such decree or order for relief or any such other
         decree or order unstayed and in effect for a period of 90 consecutive
         days; or

                 (6)      the commencement by the Company of a voluntary case
         or proceeding under any applicable Federal or State bankruptcy,
         insolvency, reorganization or other similar law or of any other case
         or proceeding to be adjudicated a bankrupt or insolvent, or the
         consent by it to the entry of a decree or order for relief in respect
         of the Company in an involuntary case or proceeding under any
         applicable Federal or State bankruptcy, insolvency, reorganization or
         other similar law or to the commencement of any bankruptcy or
         insolvency case or proceeding against it, or the filing by it, of a
         petition or answer or consent seeking reorganization or relief under
         any applicable Federal or State law, or the consent by it to the
         filing of such petition or to the appointment of or taking possession
         by a custodian, receiver, liquidator, assignee, trustee, sequestrator
         or similar official of the Company or of any substantial part of its
         property, or the making by it of an assignment for the benefit of
         creditors, or the admission by it in writing of its inability to pay
         its debts generally as they become due, or the taking of corporate
         action by the Company in furtherance of any such action; or

                 (7)      any other Event of Default provided with respect to
         Securities of that series.

                 Notwithstanding the foregoing provisions of this Section 501,
if the principal of (and premium, if any) or any interest on, or Additional
Amounts with respect to, any Security is payable in a currency or currencies
(including a composite currency) other than Dollars and such currency (or
currencies) is (or are) not available to the Company for making payment thereof
due to the imposition of exchange controls or other circumstances beyond the
control of the Company (a "Conversion Event"), the Company will be entitled to
satisfy its obligations to Holders of the Securities by making such payment in
Dollars in an amount equal to the Dollar equivalent of the amount payable in
such other currency, as determined by the Company by reference to the noon





                                       29
<PAGE>   38
buying rate in The City of New York for cable transfers for such currency
("Exchange Rate"), as such Exchange Rate is certified for customs purposes by
the Federal Reserve Bank of New York on the date of such payment, or, if such
rate is not then available, on the basis of the most recently available
Exchange Rate.  Notwithstanding the foregoing provisions of this Section 501,
any payment made under such circumstances in Dollars where the required payment
is in a currency other than Dollars will not constitute an Event of Default
under this Indenture.

                 Promptly after the occurrence of a Conversion Event with
respect to Securities of any series, the Company shall give written notice
thereof to the Trustee; and the Trustee, promptly after receipt of such notice,
shall give notice thereof in the manner provided in Section 107 to the Holders
of such series.  Promptly after the making of any payment in Dollars as a
result of a Conversion Event with respect to Securities of any series, the
Company shall give notice in the manner provided in Section 107 to the Holders
of such series, setting forth the applicable Exchange Rate and describing the
calculation of such payments.

SECTION 502.  Acceleration of Maturity; Rescission and Annulment.

                 If an Event of Default with respect to any Securities of any
series at the time Outstanding occurs and is continuing, then in every such
case the Trustee or the Holders of not less than 25% in principal amount of the
Outstanding Securities of (i) the series affected by such default (in the case
of an Event of Default described in clause (1), (2), (3) or (7) of Section 501)
or (ii) all series of Securities (subject to the immediately following
sentence, in the case of an Event of Default described in clause (4) of Section
501) may declare the principal amount (or, if any such Securities are Original
Issue Discount Securities, such portion of the principal amount as may be
specified in the terms of that series) of all of the Securities of the series
affected by such default or all series, as the case may be, to be due and
payable immediately, by a notice in writing to the Company (and to the Trustee
if given by Holders), and upon any such declaration such principal amount (or
specified amount) shall become immediately due and payable.  If an Event of
Default described in clause (5) or (6) of Section 501 shall occur, the
principal amount of the Outstanding Securities of all series ipso facto shall
become and be immediately due and payable without any declaration or other act
on the part of the Trustee or any Holder.

                 At any time after such a declaration of acceleration with
respect to Securities of any series (or of all series, as the case may be) has
been made and before a judgment or decree for payment of the money due has been
obtained by the Trustee as hereinafter in this Article provided, the Holders of
a majority in principal amount of the Outstanding Securities of that series (or
of all series, as the case may be), by written notice to the Company and the
Trustee, may rescind and annul such declaration and its consequences if

                 (1)      the Company has paid or deposited with the Trustee a
         sum sufficient to pay

                          (A)     all overdue interest on, and any Additional
                 Amounts with respect to, all Securities of that series (or of
                 all series, as the case may be),





                                       30
<PAGE>   39
                          (B)     the principal of (and premium, if any, on)
                 any Securities of that series (or of all series, as the case
                 may be) which have become due otherwise than by such
                 declaration of acceleration and interest thereon at the rate
                 or rates prescribed therefor in such Securities (in the case
                 of Original Issue Discount Securities, the Securities' Yield
                 to Maturity),

                          (C)     to the extent that payment of such interest
                 is lawful, interest upon overdue interest and any Additional
                 Amounts at the rate or rates prescribed therefor in such
                 Securities (in the case of Original Issue Discount Securities,
                 the Securities' Yield to Maturity), and

                          (D)     all sums paid or advanced by the Trustee
                 hereunder and the reasonable compensation, expenses,
                 disbursements and advances of the Trustee, its agents and
                 counsel;

         and

                 (2)      all Events of Default with respect to Securities of
         that series (or of all series, as the case may be), other than the
         non-payment of the principal of Securities of that series (or of all
         series, as the case may be) which have become due solely by such
         declaration of acceleration, have been cured or waived as provided in
         Section 512.

No such rescission shall affect any subsequent default or impair any right
consequent thereon.

SECTION 503.  Collection of Indebtedness and Suits for Enforcement by Trustee.

                 The Company covenants that if

                 (1)      default is made in the payment of any installment of
         interest on, or any Additional Amounts with respect to, any Security
         of any series when such interest or Additional Amounts shall have
         become due and payable and such default continues for a period of 30
         days, or

                 (2)      default is made in the payment of the principal of
         (or premium, if any, on) any Security at the Maturity thereof,

the Company will, upon demand of the Trustee, pay to it, for the benefit of the
Holders of such Securities, the whole amount then due and payable on such
Securities for principal (and premium, if any) and interest and Additional
Amounts and, to the extent that payment of such interest shall be legally
enforceable, interest on any overdue principal (and premium, if any) and on any
overdue interest and Additional Amounts, at the rate or rates prescribed
therefor in such Securities (or in the case of Original Issue Discount
Securities, the Securities' Yield to Maturity), and, in addition thereto, such
further amount as shall be sufficient to cover the costs and expenses of
collection, including the reasonable compensation, expenses, disbursements and
advances of the Trustee, its agents and counsel.





                                       31
<PAGE>   40
                 If the Company fails to pay such amounts forthwith upon such
demand, the Trustee, in its own name and as trustee of an express trust, may
institute a judicial proceeding for the collection of the sums so due and
unpaid, may prosecute such proceeding to judgment or final decree and may
enforce the same against the Company or any other obligor upon such Securities
and collect the moneys adjudged or decreed to be payable in the manner provided
by law out of the property of the Company or any other obligor upon such
Securities, wherever situated.

                 If an Event of Default with respect to Securities of any
series occurs and is continuing, the Trustee may in its discretion proceed to
protect and enforce its rights and the rights of the Holders of Securities of
such series by such appropriate judicial proceedings as the Trustee shall deem
most effectual to protect and enforce any such rights, whether for the specific
enforcement of any covenant or agreement in this Indenture or in aid of the
exercise of any power granted herein, or to enforce any other proper remedy.

SECTION 504.  Trustee May File Proofs of Claim.

                 In case of the pendency of any receivership, insolvency,
liquidation, bankruptcy, reorganization, arrangement, adjustment, composition
or other judicial proceeding relative to the Company or any other obligor upon
the Securities or the property of the Company or of such other obligor or their
creditors, the Trustee (irrespective of whether the principal (or lesser amount
in the case of Original Issue Discount Securities) of the Securities shall then
be due and payable as therein expressed or by declaration or otherwise and
irrespective of whether the Trustee shall have made any demand on the Company
for the payment of overdue principal (and premium, if any), interest or any
Additional Amounts) shall be entitled and empowered, by intervention in such
proceeding or otherwise,

                 (i)      to file and prove a claim for the whole amount of
         principal (or lesser amount in the case of Original Issue Discount
         Securities) (and premium, if any) and interest and any Additional
         Amounts owing and unpaid in respect of the Securities and to file such
         other papers or documents as may be necessary or advisable in order to
         have the claims of the Trustee (including any claim for the reasonable
         compensation, expenses, disbursements and advances of the Trustee, its
         agents and counsel) and of the Holders allowed in such judicial
         proceeding, and

                 (ii)     to collect and receive any monies or other property
         payable or deliverable on any such claims and to distribute the same;

and any custodian, receiver, assignee, trustee, liquidator, sequestrator or
other similar official in any such judicial proceeding is hereby authorized by
each Holder to make such payments to the Trustee and, in the event that the
Trustee shall consent to the making of such payments directly to the Holders,
to pay to the Trustee any amount due it for the reasonable compensation,
expenses, disbursements and advances of the Trustee, its agents and counsel,
and any other amounts due the Trustee under Section 607.





                                       32
<PAGE>   41
                 Nothing herein contained shall be deemed to authorize the
Trustee to authorize or consent to or accept or adopt on behalf of any Holder
any plan of reorganization, arrangement, adjustment or composition affecting
the Securities or the rights of any Holder thereof or to authorize the Trustee
to vote in respect of the claim of any Holder in any such proceedings;
provided, however,  that the Trustee may, on behalf of the Holders, vote for
the election of a trustee in bankruptcy or similar official.

SECTION 505.  Trustee May Enforce Claims Without Possession of Securities or
              Coupons.

                 All rights of action and claim under this Indenture or the
Securities may be prosecuted and enforced by the Trustee without possession of
any of the Securities or the production thereof in any proceeding relating
thereto, and any such proceeding instituted by the Trustee shall be brought in
its own name as trustee of an express trust, and any recovery of judgment
shall, after provision for the payment of the reasonable compensation,
expenses, disbursements and advances of the Trustee, its agents and counsel, be
for the ratable benefit of the Holders of the Securities in respect of which
such judgment has been recovered.

SECTION 506.  Application of Money Collected.

                 Any money collected by the Trustee pursuant to this Article
shall be applied in the following order, at the date or dates fixed by the
Trustee and, in case of the distribution of such money on account of principal
(or premium, if any), interest or any Additional Amounts, upon presentation of
the Securities, and the notation thereon of the payment if only partially paid
and upon surrender thereof if fully paid:

                 FIRST:  To the payment of all amounts due the Trustee under
         Section 607;

                 SECOND: To the payment of the amounts then due and unpaid for
         principal of (and premium, if any) and interest on and any Additional
         Amounts with respect to the Securities in respect of which or for the
         benefit of which such money has been collected, ratably, without
         preference or priority of any kind, according to the amounts due and
         payable on such Securities for principal (and premium, if any),
         interest and Additional Amounts, respectively; and

                 THIRD:  The balance, if any, to the Person or Persons entitled
         thereto.

                 To the fullest extent allowed under applicable law, if for the
purpose of obtaining judgment against the Company in any court it is necessary
to convert the sum due in respect of the principal of (or premium, if any) or
interest on or any Additional Amounts with respect to the Securities of any
series (the "Required Currency") into a currency in which a judgment will be
rendered (the "Judgment Currency"), the rate of exchange used shall be the rate
at which in accordance with normal banking procedures the Trustee could
purchase in The City of New York the Required Currency with the Judgment
Currency on the New York Business Day next preceding that on which final
judgment is given.  Neither the Company nor the Trustee shall be liable for any
shortfall nor shall it benefit from any windfall in payments to Holders of
Securities under this





                                       33
<PAGE>   42
Section caused by a change in exchange rates between the time the amount of a
judgment against it is calculated as above and the time the Trustee converts
the Judgment Currency into the Required Currency to make payments under this
Section to Holders of Securities, but payment of such judgment shall discharge
all amounts owed by the Company on the claim or claims underlying such
judgment.

SECTION 507.  Limitation on Suits.

                 Subject to Section 508, no Holder of any Security of any
series shall have any right to institute any proceeding, judicial or otherwise,
with respect to this Indenture, or for the appointment of a receiver or
trustee, or for any other remedy hereunder, unless

                 (1)      an Event of Default with respect to Securities of
         such series shall have occurred and be continuing and such Holder has
         previously given written notice to the Trustee of such continuing
         Event of Default;

                 (2)      the Holders of not less than 25% in principal amount
         of the Outstanding Securities of that series shall have made written
         request to the Trustee to institute proceedings in respect of such
         Event of Default in its own name as Trustee hereunder;

                 (3)      such Holder or Holders have offered to the Trustee
         reasonable indemnity against the costs, expenses and liabilities to be
         incurred in compliance with such request;

                 (4)      the Trustee for 60 days after its receipt of such
         notice, request and offer of indemnity has failed to institute any
         such proceeding; and

                 (5)      no direction inconsistent with such written request
         has been given to the Trustee during such 60-day period by the Holders
         of a majority in principal amount of the Outstanding Securities of
         that series;

it being understood and intended that no one or more of such Holders shall have
any right in any manner whatever by virtue of, or by availing of, any provision
of this Indenture to affect, disturb or prejudice the rights of any other of
such Holders, or to obtain or to seek to obtain priority or preference over any
other of such Holders or to enforce any right under this Indenture, except in
the manner herein provided and for the equal and ratable benefit of all of such
Holders.

SECTION 508.  Unconditional Right of Holders to Receive Principal Premium and
              Interest.

                 Notwithstanding any other provision in this Indenture, the
Holder of any Security shall have the right, which is absolute and
unconditional, to receive payment of the principal of (and premium, if any) and
(subject to Section 307) interest on and any Additional Amounts with respect to
such Security on the Stated Maturity or Maturities expressed in such Security
(or, in the case of redemption, on the Redemption Date) and to institute suit
for the enforcement of any such payment, and such rights shall not be impaired
or affected without the consent of such Holder.





                                       34
<PAGE>   43
SECTION 509.   Restoration of Rights and Remedies.

                 If the Trustee or any Holder of any Security has instituted
any proceeding to enforce any right or remedy under this Indenture and such
proceeding has been discontinued or abandoned for any reason, then and in every
such case the Company, the Trustee and the Holders shall, subject to any
determination in such proceeding, be restored severally and respectively to
their former positions hereunder, and thereafter all rights and remedies of the
Trustee and the Holders shall continue as though no such proceeding had been
instituted.

SECTION 510.  Rights and Remedies Cumulative.

                 Except as otherwise provided with respect to the replacement
or payment of mutilated, destroyed, lost or stolen Securities in the last
paragraph of Section 306, no right or remedy herein conferred upon or reserved
to the Trustee or to the Holders is intended to be exclusive of any other right
or remedy, and every right and remedy shall, to the extent permitted by law, be
cumulative and in addition to every other right and remedy given hereunder or
now or hereafter existing at law or in equity or otherwise.  The assertion or
employment of any right or remedy hereunder, or otherwise, shall not prevent
the concurrent assertion or employment of any other appropriate right or
remedy.

SECTION 511.  Delay or Omission Not Waiver.

                 No delay or omission of the Trustee or of any Holder of any
Securities to exercise any right or remedy accruing upon any Event of Default
shall impair any such right or remedy or constitute a waiver of any such Event
of Default or an acquiescence therein.  Every right and remedy given by this
Article or by law to the Trustee or to the Holders may be exercised from time
to time, and as often as may be deemed expedient, by the Trustee or by the
Holders, as the case may be.

SECTION 512.  Control by Holders.

                 With respect to Securities of any series, the Holders of a
majority in principal amount of the Outstanding Securities of such series shall
have the right to direct the time, method and place of conducting any
proceeding for any remedy available to the Trustee, or exercising any trust or
power conferred on the Trustee, relating to or arising under an Event of
Default described in clause (1), (2), (3) or (7) of Section 501, and with
respect to all Securities the Holders of a majority in principal amount of all
Outstanding Securities shall have the right to direct the time, method and
place of conducting any remedy available to the Trustee, or exercising any
trust or power conferred on the Trustee, not relating to or arising under such
an Event of Default, provided that in each such case

                 (1)      such direction shall not be in conflict with any rule
         of law or with this Indenture, and

                 (2)      the Trustee may take any other action deemed proper
         by the Trustee which is not inconsistent with such direction.





                                       35
<PAGE>   44
SECTION 513.  Waiver of Past Defaults.

                 The Holders of a majority in principal amount of the
Outstanding Securities of any series may on behalf of the Holders of all the
Securities of such series waive any past default hereunder with respect to such
series and its consequences, and the Holders of a majority in principal amount
of all Outstanding Securities may on behalf of the Holders of all Securities
waive any other past default hereunder and its consequences, except in each
case a default

                 (1)      in the payment of the principal of (or premium, if
         any) or interest on, or any Additional Amounts with respect to, any
         Security, or

                 (2)      in respect of a covenant or provision hereof which
         under Article Nine cannot be modified or amended without the consent
         of the Holder of each Outstanding Security affected.

                 Upon any such waiver, such default shall cease to exist, and
any Event of Default arising therefrom shall be deemed to have been cured, for
every purpose of this Indenture; but no such waiver shall extend to any
subsequent or other default or impair any right consequent thereon.

SECTION 514.  Undertaking for Costs.

                 All parties to this Indenture agree, and each Holder of any
Security by his acceptance thereof shall be deemed to have agreed, that any
court may in its discretion require, in any suit for the enforcement of any
right or remedy under this Indenture, or in any suit against the Trustee for
any action taken or omitted by it as Trustee, the filing by any party litigant
in such suit of an undertaking to pay the costs of such suit, and that such
court may in its discretion assess reasonable costs, including reasonable
attorneys' fees, against any party litigant in such suit, having due regard to
the merits and good faith of the claims or defenses made by such party
litigant; but the provisions of this Section shall not apply to any suit
instituted by the Company, to any suit instituted by the Trustee, to any suit
instituted by any Holder, or group of Holders, holding in the aggregate more
than 10% in principal amount of the Outstanding Securities of any series, or to
any suit instituted by any Holder for the enforcement of the payment of the
principal of (or premium, if any) or interest on, or any Additional Amounts
with respect to, any Security on or after the Stated Maturity or Maturities
expressed in such Security (or, in the case of redemption, on or after the
Redemption Date).

SECTION 515.   Waiver of Stay or Extension Laws.

                 The Company covenants (to the extent that it may lawfully do
so) that it will not at any time insist upon, or plead, or in any manner
whatsoever claim or take the benefit or advantage of, any stay or extension law
wherever enacted, now or at any time hereafter in force, which may affect the
covenants or the performance of this Indenture; and the Company (to the extent
that it may lawfully do so) hereby expressly waives all benefit or advantage of
any such law, and covenants that it will not hinder, delay or impede the
execution of any power herein granted to the Trustee, but will suffer and
permit the execution of every such power as though no such law had been
enacted.





                                       36
<PAGE>   45
                                  ARTICLE SIX

                                  THE TRUSTEE

SECTION 601.  Certain Duties and Responsibilities.

                 (a)      Except during the continuance of an Event of Default
         with respect to the Securities of any series,

                          (1)     the Trustee undertakes to perform such duties
                 and only such duties as are specifically set forth in this
                 Indenture, and no implied covenants or obligations shall be
                 read into this Indenture against the Trustee; and

                          (2)     in the absence of bad faith on its part, the
                 Trustee may conclusively rely, as to the truth of the
                 statements and the correctness of the opinions expressed
                 therein, upon certificates or opinions furnished to the
                 Trustee and conforming to the requirements of this Indenture;
                 but in the case of any such certificates or opinions which by
                 any provision hereof are specifically required to be furnished
                 to the Trustee, the Trustee shall be under a duty to examine
                 the same to determine whether or not they conform to the
                 requirements of this Indenture.

                 (b)      In case an Event of Default has occurred and is
         continuing with respect to the Securities of any series, the Trustee
         shall exercise such of the rights and powers vested in it by this
         Indenture, and use the same degree of care and skill in their
         exercise, as a prudent man would exercise or use under the
         circumstances in the conduct of his own affairs.

                 (c)      No provision of this Indenture shall be construed to
         relieve the Trustee from liability for its own negligent action, its
         own negligent failure to act or its own willful misconduct, except
         that

                          (1)     this Subsection shall not be construed to
                 limit the effect of Subsection (a) of this Section;

                          (2)     the Trustee shall not be liable for any error
                 of judgment made in good faith by a Responsible Officer,
                 unless it shall be proved that the Trustee was negligent in
                 ascertaining the pertinent facts;

                          (3)     the Trustee shall not be liable with respect
                 to any action taken or omitted to be taken by it in good faith
                 in accordance with the direction of the Holders of a majority
                 in principal amount of the Outstanding Securities of any
                 series or of all series, determined as provided in Section
                 511, relating to the time, method and place of conducting any
                 proceeding for any remedy available to the Trustee, or
                 exercising any trust or power conferred upon the Trustee,
                 under this Indenture with respect to the Securities of such
                 series; and





                                       37
<PAGE>   46
                          (4)     no provision of this Indenture shall require
                 the Trustee to expend or risk its own funds or otherwise incur
                 any financial liability in the performance of any of its
                 duties hereunder, or in the exercise of any of its rights or
                 powers, if it shall have reasonable grounds for believing that
                 repayment of such funds or indemnity satisfactory to it
                 against such risk or liability is not assured to it.

                 (d)      Whether or not therein expressly so provided, every
         provision of this Indenture relating to the conduct or affecting the
         liability of or affording protection to the Trustee shall be subject
         to the provisions of this Section.

SECTION 602.  Notice of Defaults.

                 Within 90 days after the occurrence of any default hereunder
with respect to the Securities of any series, the Trustee shall give notice of
such default hereunder known to the Trustee to all Holders of Securities of
such series in the manner provided in Section 107, unless such default shall
have been cured or waived; provided, however, that, except in the case of a
default in the payment of the principal of (or premium, if any) or interest on,
or any Additional Amounts with respect to, any Security of such series or in
the payment of any sinking fund installment with respect to Securities of such
series, the Trustee shall be protected in withholding such notice if and so
long as the board of directors, the executive committee or a trust committee of
directors or Responsible Officers of the Trustee in good faith determines that
the withholding of such notice is in the interest of the Holders of Securities
of such series; and provided, further, that in the case of any default of the
character specified in Section 501(4) with respect to Securities of such
series, no such notice to Holders shall be given until at least 30 days after
the occurrence thereof.  For the purpose of this Section, the term "default"
means any event, act or condition which is, or after notice or lapse of time or
both would become, an Event of Default with respect to Securities of such
series.

SECTION 603.  Certain Rights of Trustee.

                 Subject to the provisions of Section 601:

                 (a)      the Trustee may rely and shall be protected in acting
         or refraining from acting upon any resolution, certificate, statement,
         instrument, opinion, report, notice, request, direction, consent,
         order, bond, debenture, note, coupon, other evidence of indebtedness
         or other paper or document believed by it to be genuine and to have
         been signed or presented by the proper party or parties;

                 (b)      any request or direction of the Company mentioned
         herein shall be sufficiently evidenced by a Company Request or Company
         Order and any resolution of the Board of Directors may be sufficiently
         evidenced by a Board Resolution;

                 (c)      whenever in the administration of this Indenture the
         Trustee shall deem it desirable that a matter be proved or established
         prior to taking, suffering or omitting any action hereunder, the
         Trustee (unless other evidence be herein specifically prescribed) may,
         in the absence of bad faith on its part, rely upon an Officers'
         Certificate;





                                       38
<PAGE>   47
                 (d)      the Trustee may consult with counsel and the written
         advice of such counsel or any Opinion of Counsel shall be full and
         complete authorization and protection in respect of any action taken,
         suffered or omitted by it hereunder in good faith and in reliance
         thereon;

                 (e)      the Trustee shall be under no obligation to exercise
         any of the rights or powers vested in it by this Indenture at the
         request or direction of any of the Holders pursuant to this Indenture,
         unless such Holders shall have offered to the Trustee security or
         indemnity satisfactory to it against the costs, expenses and
         liabilities which might be incurred by it in compliance with such
         request or direction;

                 (f)      the Trustee shall not be bound to make any
         investigation into the facts or matters stated in any resolution,
         certificate, statement, instrument, opinion, report, notice, request,
         direction, consent, order, bond, debenture, note, coupon, other
         evidence of indebtedness or other paper or document, but the Trustee,
         in its discretion, may make such further inquiry or investigation into
         such facts or matters as it may see fit, and, if the Trustee shall
         determine to make such further inquiry or investigation, it shall be
         entitled to examine the books, records and premises of the Company,
         personally or by agent or attorney; and

                 (g)      the Trustee may execute any of the trusts or powers
         hereunder or perform any duties hereunder either directly or by or
         through agents or attorneys and, except for any Affiliates of the
         Trustee, the Trustee shall not be responsible for any misconduct or
         negligence on the part of any agent or attorney appointed with due
         care by it hereunder.

SECTION 604.  Not Responsible for Recitals or Issuance of Securities.

                 The recitals contained herein and in the Securities, except
the Trustee's certificates of authentication, shall be taken as the statements
of the Company, and the Trustee assumes no responsibility for their
correctness.  The Trustee makes no representations as to the validity or
sufficiency of this Indenture or of the Securities.  The Trustee shall not be
accountable for the use or application by the Company of Securities or the
proceeds thereof.

SECTION 605.  May Hold Securities.

                 The Trustee, any Authenticating Agent, any Paying Agent, any
Security Registrar or any other agent of the Company, in its individual or any
other capacity, may become the owner or pledgee of Securities and, subject to
Sections 608 and 613, may otherwise deal with the Company with the same rights
it would have if it were not Trustee, Authenticating Agent, Paying Agent,
Security Registrar or such other agent.

SECTION 606.  Money Held in Trust.

                 Money held by the Trustee in trust hereunder need not be
segregated from other funds except to the extent required by law.  The Trustee
shall be under no liability for interest on any money received by it hereunder
except as otherwise agreed with the Company.





                                       39
<PAGE>   48
SECTION 607.  Compensation and Reimbursement.

                 The Company agrees

                 (1)      to pay to the Trustee from time to time compensation
         for all services rendered by it hereunder (which compensation shall
         not be limited by any provision of law in regard to the compensation
         of a trustee of an express trust);

                 (2)      except as otherwise expressly provided herein, to
         reimburse the Trustee upon its request for all reasonable expenses,
         disbursements and advances incurred or made by the Trustee in
         accordance with any provision of this Indenture (including the
         compensation and the reasonable expenses and disbursements of its
         agents and counsel), except any such expense, disbursement or advance
         as may be attributable to its negligence or bad faith; and

                 (3)      to indemnify the Trustee and each of its directors,
         officers, employees, agents and/or representatives for, and to hold
         each of them harmless against, any loss, liability or expense incurred
         without negligence or bad faith on each of their part, arising out of
         or in connection with the acceptance or administration of the trust or
         trusts hereunder, including the costs and expenses of defending
         themselves against any claim or liability in connection with the
         exercise or performance of any of the Trustee's powers or duties
         hereunder.

                 As security for the performance of the obligations of the
Company under this Section, the Trustee shall have a lien prior to the
Securities upon all property and funds held or collected by the Trustee as
such, except funds held in trust for the payment of principal of, premium, if
any, or interest, if any, on, or any Additional Amounts with respect to,
particular Securities.

                 Any expenses and compensation for any services rendered by the
Trustee after the occurrence of an Event of Default specified in clause (5) or
(6) of Section 501 shall constitute expenses and compensation for services of
administration under all applicable federal or state bankruptcy, insolvency,
reorganization or other similar laws.

                 The provisions of this Section shall survive the termination
of this Indenture.

SECTION 608.  Disqualification; Conflicting Interests.

                 (a)      If the Trustee has or shall acquire any conflicting
         interest, as defined in this Section, with respect to the Securities
         of any series, it shall, within 90 days after ascertaining that it has
         such conflicting interest, either eliminate such conflicting interest
         or resign with respect to the Securities of that series in the manner
         and with the effect hereinafter specified in this Article.

                 (b)      In the event that the Trustee shall fail to comply
         with the provisions of Subsection (a) of this Section with respect to
         the Securities of any series, the Trustee shall, within 10 days after
         the expiration of such 90-day period, transmit by mail to all Holders
         of





                                       40
<PAGE>   49
         Securities of that series, as their names and addresses appear in the
         Security Register, notice of such failure.

                 (c)      For the purposes of this Section, the term
         "conflicting interest" shall have the meaning specified in Section
         310(b) of the Trust Indenture Act and the Trustee shall comply with
         Section 310(b) of the Trust Indenture Act; provided that there shall
         be excluded from the operation of Section 310(b)(1) of the Trust
         Indenture Act with respect to the Securities of any series any
         indenture or indentures under which other securities, or certificates
         of interest or participation in other securities, of the Company are
         outstanding, if the requirements for such exclusion set forth in
         Section 310(b)(1) of the Trust Indenture Act are met.  For purposes of
         the preceding sentence, the optional provision permitted by the second
         sentence of Section 310(b)(9) of the Trust Indenture Act shall be
         applicable.

SECTION 609.  Corporate Trustee Required; Eligibility.

                 There shall at all times be a Trustee hereunder which shall be
a corporation organized and doing business under the laws of the United States
of America, any State thereof or the District of Columbia, authorized under
such laws to exercise corporate trust powers, having a combined capital and
surplus of at least $50,000,000 and subject to supervision or examination by
Federal or State or District of Columbia authority.  If such corporation
publishes reports of condition at least annually, pursuant to law or to the
requirements of said supervising or examining authority, then for the purposes
of this Section, the combined capital and surplus of such corporation shall be
deemed to be its combined capital and surplus as set forth in its most recent
report of condition so published.  If at any time the Trustee shall cease to be
eligible in accordance with the provisions of this Section, it shall resign
immediately in the manner and with the effect hereinafter specified in this
Article.

                 The Indenture shall always have a Trustee who satisfies the
requirements of Sections 310(a)(1), 310(a)(2) and 310(a)(5) of the Trust
Indenture Act.

SECTION 610.  Resignation and Removal; Appointment of Successor.

                 (a)      No resignation or removal of the Trustee and no
         appointment of a successor Trustee pursuant to this Article shall
         become effective until the acceptance of appointment by the successor
         Trustee in accordance with the applicable requirements of Section 611.

                 (b)      The Trustee may resign at any time with respect to
         the Securities of one or more series by giving written notice thereof
         to the Company.  If the instrument of acceptance by a successor
         Trustee required by Section 611 shall not have been delivered to the
         resigning Trustee within 30 days after the giving of such notice of
         resignation, the resigning Trustee may petition any court of competent
         jurisdiction for the appointment of a successor Trustee with respect
         to the Securities of such series.

                 (c)      The Trustee may be removed at any time with respect
         to the Securities of any series by Act of the Holders of a majority in
         principal amount of the Outstanding Securities of such series,
         delivered to the Trustee and to the Company.





                                       41
<PAGE>   50
                 (d)      If at any time:

                          (1)     the Trustee shall fail to comply with Section
                 608(a) after written request therefor by the Company or by any
                 Holder who has been a bona fide Holder of a Security for at
                 least six months, or

                          (2)     the Trustee shall cease to be eligible under
                 Section 609 and shall fail to resign after written request
                 therefor by the Company or by any such Holder of Securities,
                 or

                          (3)     the Trustee shall become incapable of acting
                 or shall be adjudged a bankrupt or insolvent or a receiver of
                 the Trustee or of its property shall be appointed or any
                 public officer shall take charge or control of the Trustee or
                 of its property or affairs for the purpose of rehabilitation,
                 conservation or liquidation,

         then, in any such case, (i) the Company by a Board Resolution may
         remove the Trustee with respect to all Securities, or (ii) subject to
         Section 513, any Holder who has been a bona fide Holder of a Security
         for at least six months may, on behalf of himself and all others
         similarly situated, petition any court of competent jurisdiction for
         the removal of the Trustee with respect to all Securities and the
         appointment of a successor Trustee or Trustees.

                 (e)      If the Trustee shall resign, be removed or become
         incapable of acting, or if a vacancy shall occur in the office of
         Trustee for any cause, with respect to the Securities of one or more
         series, the Company, by a Board Resolution, shall promptly appoint a
         successor Trustee or Trustees with respect to the Securities of that
         or those series (it being understood that any such successor Trustee
         may be appointed with respect to the Securities of one or more or all
         of such series and that at any time there shall be only one Trustee
         with respect to the Securities of any particular series) and such
         successor Trustee or Trustees shall comply with the applicable
         requirements of Section 611.  If no successor Trustee with respect to
         the Securities of any series shall have been so appointed by the
         Company and accepted appointment in the manner required by Section
         611, any Holder who has been a bona fide Holder of a Security of such
         series for at least six months may, on behalf of himself and all
         others similarly situated, petition any court of competent
         jurisdiction for the appointment of a successor Trustee with respect
         to the Securities of such series.

                 (f)      The Company shall give notice of each resignation and
         each removal of the Trustee with respect to the Securities of any
         series and each appointment of a successor Trustee with respect to the
         Securities of any series by mailing written notice of such event by
         first-class mail, postage prepaid, to all Holders of Securities of
         such series as their names and addresses appear in the Security
         Register.  Each notice shall include the name of the successor Trustee
         with respect to the Securities of such series and the address of its
         Corporate Trust Office.





                                       42
<PAGE>   51
SECTION 611.  Acceptance of Appointment by Successor.

                 (a)      In case of the appointment hereunder of a successor
         Trustee with respect to all Securities, every such successor Trustee
         so appointed shall execute, acknowledge and deliver to the Company and
         to the retiring Trustee an instrument accepting such appointment, and
         thereupon the resignation or removal of the retiring Trustee shall
         become effective and such successor Trustee, without any further act,
         deed or conveyance, shall become vested with all the rights, powers,
         trusts and duties of the retiring Trustee; but, on the request of the
         Company or the successor Trustee, such retiring Trustee shall, upon
         payment of its charges, execute and deliver an instrument transferring
         to such successor Trustee all the rights, powers and trusts of the
         retiring Trustee and shall duly assign, transfer and deliver to such
         successor Trustee all property and money held by such retiring Trustee
         hereunder.

                 (b)      In case of the appointment hereunder of a successor
         Trustee with respect to the Securities of one or more (but not all)
         series, the Company, the retiring Trustee and each successor Trustee
         with respect to the Securities of one or more series shall execute and
         deliver an indenture supplemental hereto wherein each successor
         Trustee shall accept such appointment and which (1) shall contain such
         provisions as shall be necessary or desirable to transfer and confirm
         to, and to vest in, each successor Trustee all the rights, powers,
         trusts and duties of the retiring Trustee with respect to the
         Securities of that or those series to which the appointment of such
         successor Trustee relates, (2) if the retiring Trustee is not retiring
         with respect to all Securities, shall contain such provisions as shall
         be deemed necessary or desirable to confirm that all the rights,
         powers, trusts and duties of the retiring Trustee with respect to the
         Securities of that or those series as to which the retiring Trustee is
         not retiring shall continue to be vested in the retiring Trustee and
         (3) shall add to or change any of the provisions of this Indenture as
         shall be necessary to provide for or facilitate the administration of
         the trusts hereunder by more than one Trustee, it being understood
         that nothing herein or in such supplemental indenture shall constitute
         such Trustees co-trustees of the same trust and that each such Trustee
         shall be trustee of a trust or trusts hereunder separate and apart
         from any trust or trusts hereunder administered by any other such
         Trustee; and upon the execution and delivery of such supplemental
         indenture, the resignation or removal of the retiring Trustee shall
         become effective to the extent provided therein and each such
         successor Trustee, without any further act, deed or conveyance, shall
         become vested with all the rights, powers, trusts and duties of the
         retiring Trustee with respect to the Securities of that or those
         series to which the appointment of such successor Trustee relates;
         but, on request of the Company or any successor Trustee, such retiring
         Trustee shall duly assign, transfer and deliver to such successor
         Trustee all property and money held by such retiring Trustee hereunder
         with respect to the Securities of that or those series to which the
         appointment of such successor Trustee relates.

                 (c)      Upon request of any such successor Trustee, the
         Company shall execute any and all instruments for more fully and
         certainly vesting in and confirming to such successor Trustee all such
         rights, powers and trusts referred to in paragraph (a) or (b) of this
         Section, as the case may be.





                                       43
<PAGE>   52
                 (d)      No successor Trustee shall accept its appointment
         unless at the time of such acceptance such successor Trustee shall be
         qualified and eligible under this Article.

SECTION 612.  Merger, Conversion, Consolidation or Succession to Business.

                 Any corporation into which the Trustee may be merged or
converted or with which it may be consolidated, or any corporation resulting
from any merger, conversion or consolidation to which the Trustee shall be a
party, or any corporation succeeding to all or substantially all the corporate
trust business of the Trustee, shall be the successor of the Trustee hereunder,
provided such corporation shall be otherwise qualified and eligible under this
Article, without the execution or filing of any paper or any further act on the
part of any of the parties hereto.  In case any Securities shall have been
authenticated, but not delivered, by the Trustee then in office, any successor
by merger, conversion or consolidation to such authenticating Trustee may adopt
such authentication and deliver the Securities so authenticated with the same
effect as if such successor Trustee had itself authenticated such Securities.

SECTION 613.  Preferential Collection of Claims Against Company.

                 The Trustee shall comply with Section 311(a) of the Trust
Indenture Act, excluding any creditor relationship described in Section 311(b)
of the Trust Indenture Act.  A Trustee who has resigned or been removed shall
be subject to Section 311(a) of the Trust Indenture Act to the extent indicated
therein.

SECTION 614.  Appointment of Authenticating Agent.

                 The Trustee may appoint an Authenticating Agent or Agents
which shall be authorized to act on behalf of the Trustee to authenticate
Securities issued upon original issue and upon exchange, registration of
transfer or partial redemption or pursuant to Section 306, and Securities so
authenticated shall be entitled to the benefits of this Indenture and shall be
valid and obligatory for all purposes as if authenticated by the Trustee
hereunder.  Wherever reference is made in this Indenture to the authentication
and delivery of Securities by the Trustee or the Trustee's certificate of
authentication, such reference shall be deemed to include authentication and
delivery on behalf of the Trustee by an Authenticating Agent and a certificate
of authentication executed on behalf of the Trustee by an Authenticating Agent.
Each Authenticating Agent shall be acceptable to the Company and shall at all
times be a corporation organized and doing business under the laws of the
United States of America, any State thereof or the District of Columbia having
a combined capital and surplus of not less than $50,000,000 or equivalent
amount expressed in a foreign currency and subject to supervision or
examination by Federal or State or District of Columbia authority or authority
of such country.  If such Authenticating Agent publishes reports of condition
at least annually, pursuant to law or to the requirements of said supervising
or examining authority, then for the purposes of this Section, the combined
capital and surplus of such Authenticating Agent shall be deemed to be its
combined capital and surplus as set forth in its most recent report of
condition so published.  If at any time an Authenticating Agent shall cease to
be eligible in accordance with the provisions of this Section, such
Authenticating Agent shall resign immediately in the manner and with the effect
specified in this Section.





                                       44
<PAGE>   53
                 Any corporation into which an Authenticating Agent may be
merged or converted or with which it may be consolidated, or any corporation
resulting from any merger, conversion or consolidation to which such
Authenticating Agent shall be a party, or any corporation succeeding to the
corporate agency or corporate trust business of an Authenticating Agent, shall
continue to be an Authenticating Agent, provided such corporation shall be
otherwise eligible under this Section, without the execution or filing of any
paper or any further act on the part of the Trustee or the Authenticating
Agent.

                 An Authenticating Agent may resign at any time by giving
written notice thereof to the Trustee and to the Company.  The Trustee may at
any time terminate the agency of an Authenticating Agent by giving written
notice thereof to such Authenticating Agent and to the Company.  Upon receiving
such a notice of resignation or upon such a termination, or in case at any time
such Authenticating Agent shall cease to be eligible in accordance with the
provisions of this Section, the Trustee may appoint a successor Authenticating
Agent which shall be acceptable to the Company and shall mail written notice of
such appointment by first-class mail, postage prepaid, to all Holders as their
names and addresses appear in the Security Register.  Any successor
Authenticating Agent upon acceptance of its appointment hereunder shall become
vested with all the rights, powers and duties of its predecessor hereunder,
with like effect as if originally named as an Authenticating Agent.  No
successor Authenticating Agent shall be appointed unless eligible under the
provisions of this Section.

                 The Trustee agrees to pay to each Authenticating Agent from
time to time reasonable compensation for its services under this Section, and
the Trustee shall be entitled to be reimbursed for such payments, subject to
the provisions of Section 607.

                 If an appointment is made pursuant to this Section, the
Securities may have endorsed thereon, in addition to the Trustee's certificate
of authentication, an alternate certificate of authentication in the following
form:

                 "This is one of the Securities of the series designated
therein referred to in the within-mentioned Indenture.



                                  THE FIRST NATIONAL BANK OF CHICAGO,
                                      as Trustee


                                  By                                           ,
                                    -------------------------------------------
                                          as Authenticating Agent



                                  By                                          
                                    -------------------------------------------
                                          Authorized Signatory."





                                       45
<PAGE>   54
                 Notwithstanding any provision of this Section 614 to the
contrary, if at any time any Authenticating Agent appointed hereunder with
respect to any series of Securities shall not also be acting as the Security
Registrar hereunder with respect to any series of Securities, then, in addition
to all other duties of an Authenticating Agent hereunder, such Authenticating
Agent shall also be obligated:  (i) to furnish to the Security Registrar
promptly all information necessary to enable the Security Registrar to maintain
at all times an accurate and current Security Register; and (ii) prior to
authenticating any Security denominated in a foreign currency, to ascertain
from the Company the units of such foreign currency that are required to be
determined by the Company pursuant to Section 302.

                                 ARTICLE SEVEN

               HOLDER'S LISTS AND REPORTS BY TRUSTEE AND COMPANY

SECTION 701.  Company to Furnish Trustee Names and Addresses of Holders.

                 With respect to each series of Securities, the Company will
furnish or cause to be furnished to the Trustee:

                 (a)      semi-annually, not more than 15 days after each
         Regular Record Date relating to that series (or, if there is no
         Regular Record Date relating to that series, on January 1 and July 1),
         a list, in such form as the Trustee may reasonably require, of the
         names and addresses of the Holders of that series as of such dates,
         and

                 (b)      at such other times as the Trustee may request in
         writing, within 30 days after the receipt by the Company of any such
         request, a list of similar form and content, such list to be dated as
         of a date not more than 15 days prior to the time such list is
         furnished;

provided, that so long as the Trustee is the Security Registrar, the Company
shall not be required to furnish or cause to be furnished such a list to the
Trustee.  The Company shall otherwise comply with Section 310(a) of the Trust
Indenture Act.

SECTION 702.  Preservation of Information; Communications to Holders.

                 (a)      The Trustee shall preserve, in as current a form as
         is reasonably practicable, the names and addresses of Holders of each
         series contained in the most recent list furnished to the Trustee as
         provided in Section 701 and the names and addresses of Holders of each
         series received by the Trustee in its capacity as Security Registrar,
         if applicable.  The Trustee may destroy any list furnished to it as
         provided in Section 701 upon receipt of a new list so furnished.  The
         Trustee shall otherwise comply with Section 310(a) of the Trust
         Indenture Act.

                 (b)      Holders of Securities may communicate pursuant to
         Section 312(b) the Trust Indenture Act with other Holders with respect
         to their rights under this Indenture or under the Securities.





                                       46
<PAGE>   55
                 (c)      Every Holder of Securities, by receiving and holding
         the same, agrees with the Company and the Trustee that neither the
         Company nor the Trustee nor any agent of either of them shall be held
         accountable by reason of the disclosure of any such information as to
         the names and addresses of the Holders in accordance with Section
         702(b), regardless of the source from which such information was
         derived, and that the Trustee shall not be held accountable by reason
         of mailing any material pursuant to a request made under Section
         702(b).  The Company, the Trustee, the Security Registrar and any
         other Person shall have the protection of Section 312(c) of the Trust
         Indenture Act.

SECTION 703.  Reports by Trustee.

                 (a)      Within 60 days after May 15 of each year after the
         execution of this Indenture, the Trustee shall transmit by mail to
         Holders a brief report dated as of such May 15 that complies with
         Section 313(a) of the Trust Indenture Act.

                 (b)      The Trustee shall comply with Section 313(b) of the
         Trust Indenture Act.

                 (c)      Reports pursuant to this Section shall be transmitted
         by mail as required by Sections 313(c) and 313(d) of the Trust
         Indenture Act:

                          (1)     to all Holders of Securities, as the names
                 and addresses of such Holders appear in the Security Register;

                          (2)     to such Holders of Securities as have, within
                 the two years preceding such transmissions, filed their names
                 and addresses with the Trustee for that purpose; and

                          (3)     except in the case of reports pursuant to
                 Subsection (b) of this Section, to each Holder of a Security
                 whose name and address is preserved at the time by the
                 Trustee, as provided in Section 702(a).

                 (d)      A copy of each report pursuant to Subsection (a) or
         (b) of this Section 703 shall, at the time of its transmission to
         Holders, be filed by the Trustee with each stock exchange upon which
         any Securities are listed, with the Commission and with the Company.
         The Company will notify the Trustee when any Securities are listed on
         any stock exchange.

SECTION 704.  Reports by Company.

                 The Company shall file with the Trustee, within 15 days after 
         the Company is required to file the same with the Commission, copies 
         of the annual reports and of the information, documents and other 
         reports (or copies of such portions of any of the foregoing as the 
         Commission may from time to time by rules and regulations prescribe)
         which the Company may be required to file with the Commission pursuant
         to Section 13 or Section 15(d) of the Securities Exchange Act of 1934,
         as amended, and shall otherwise comply with Section 314(a) of the 
         Trust Indenture Act.





                                       47
<PAGE>   56
                                 ARTICLE EIGHT

              CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

SECTION 801.  Company May Consolidate, Etc., Only on Certain Terms.

                 The Company shall not consolidate with or merge into any other
Person or convey, transfer or lease its properties and assets substantially as
an entirety to any Person, unless:

                 (1)      the Person formed by such consolidation or into which
         the Company is merged or the Person which acquires by conveyance or
         transfer, or which leases, the properties and assets of the Company
         substantially as an entirety shall be a corporation, partnership or
         trust and shall expressly assume, by an indenture supplemental hereto,
         executed and delivered to the Trustee, in form satisfactory to the
         Trustee, the due and punctual payment of the principal of (and
         premium, if any) and interest on and any Additional Amounts with
         respect to all the Securities and the performance of every covenant of
         this Indenture on the part of the Company to be performed or observed;

                 (2)      immediately after giving effect to such transaction,
         no Event of Default, and no event, act or condition which, after
         notice or lapse of time or both, would become an Event of Default,
         shall have happened and be continuing; and

                 (3)      the Company shall have delivered to the Trustee an
         Officers' Certificate and an Opinion of Counsel, each stating that
         such consolidation, merger, conveyance, transfer or lease and, if a
         supplemental indenture is required in connection with such
         transaction, such supplemental indenture comply with this Article and
         that all conditions precedent herein provided for relating to such
         transaction have been complied with.

SECTION 802.  Successor Person Substituted.

                 Upon any consolidation by the Company with or merger by the
Company into any other Person or any conveyance, transfer or lease of the
properties and assets of the Company substantially as an entirety in accordance
with Section 801, the successor Person formed by such consolidation or into
which the Company is merged or to which such conveyance, transfer or lease is
made shall succeed to, and be substituted for, and may exercise every right and
power of, the Company under this Indenture with the same effect as if such
successor Person had been named as the Company herein, and thereafter, except
in the case of such lease, the predecessor Person shall be relieved of all
obligations and covenants under this Indenture and the Securities.





                                       48
<PAGE>   57
                                  ARTICLE NINE

                            SUPPLEMENTAL INDENTURES

SECTION 901.  Supplemental Indentures Without Consent of Holders.

                 Without the consent of any Holders, the Company, when
authorized by a Board Resolution, and the Trustee, at any time and from time to
time, may enter into one or more indentures supplemental hereto, in form
satisfactory to the Trustee, for any of the following purposes:

                 (1)      to evidence the succession of another Person to the
         Company and the assumption by any such successor of the covenants of
         the Company herein and in the Securities; or

                 (2)      to add to the covenants of the Company for the
         benefit of the Holders of all or any series of Securities (and if such
         covenants are to be for the benefit of less than all series of
         Securities, stating that such covenants are expressly being included
         solely for the benefit of such series), to convey, transfer, assign,
         mortgage or pledge any property to or with the Trustee or otherwise
         secure any series of the Securities or to surrender any right or power
         herein conferred upon the Company; or

                 (3)      to add any additional Events of Default with respect
         to all or any series of the Securities (and, if such Event of Default
         is applicable to less than all series of Securities, specifying the
         series to which such Event of Default is applicable); or

                 (4)      to change or eliminate any of the provisions of this
         Indenture, provided that any such change or elimination shall become
         effective only when there is no Security Outstanding of any series
         created prior to the execution of such supplemental indenture which is
         adversely affected by such change in or elimination of such provision;
         or

                 (5)      to establish the form or terms of Securities of any
         series as permitted by Sections 201 and 301; or

                 (6)      to supplement any of the provisions of this Indenture
         to such extent as shall be necessary to permit or facilitate the
         defeasance and discharge of any series of Securities pursuant to
         Section 401; provided, however, that any such action shall not
         adversely affect the interest of the Holders of Securities of such
         series or any other series of Securities in any material respect; or

                 (7)      to evidence and provide for the acceptance of
         appointment hereunder by a successor Trustee with respect to the
         Securities of one or more series and to add to or change any of the
         provisions of this Indenture as shall be necessary to provide for or
         facilitate the administration of the trusts hereunder by more than one
         Trustee, pursuant to the requirements of Section 611(b); or





                                       49
<PAGE>   58
                 (8)      to cure any ambiguity, to correct or supplement any
         provision herein which may be defective or inconsistent with any other
         provision herein, or to make any other provisions with respect to
         matters or questions arising under this Indenture, provided such other
         provisions as may be made shall not adversely affect the interests of
         the Holders of Securities of any series in any material respect.

SECTION 902.  Supplemental Indentures With Consent of Holders.

                 With the consent of the Holders of a majority in principal
amount of the Outstanding Securities of all series affected by such
supplemental indenture (acting as one class), by Act of said Holders delivered
to the Company and the Trustee, the Company, when authorized by a Board
Resolution, and the Trustee may enter into an indenture or indentures
supplemental hereto for the purpose of adding any provisions to or changing in
any manner or eliminating any of the provisions of this Indenture or of
modifying in any manner the rights of the Holders of Securities of such series
under this Indenture; provided, however, that no such supplemental indenture
shall, without the consent of the Holder of each Outstanding Security affected
thereby,

                 (1)      change the Stated Maturity of the principal of, or
         any installment of principal of or interest on, any Security, or
         reduce the principal amount thereof or the rate of interest thereon,
         any Additional Amounts with respect thereto or any premium payable
         upon the redemption thereof, or change any obligation of the Company
         to pay Additional Amounts (except as contemplated by Section 801(1)
         and permitted by Section 901(1)), or reduce the amount of the
         principal of an Original Issue Discount Security that would be due and
         payable upon a declaration of acceleration of the Maturity thereof
         pursuant to Section 502, or change any Place of Payment where, or the
         coin or currency or currencies (including composite currencies) in
         which, any Security or any premium or any interest thereon or
         Additional Amounts with respect thereto is payable, or impair the
         right to institute suit for the enforcement of any such payment on or
         after the Stated Maturity thereof (or, in the case of redemption, on
         or after the Redemption Date), or

                 (2)      reduce the percentage in principal amount of
         Outstanding Securities, the consent of whose Holders is required for
         any such supplemental indenture, or the consent of whose Holders is
         required for any waiver (of compliance with certain provisions of this
         Indenture or certain defaults hereunder and their consequences)
         provided for in this Indenture, or

                 (3)      modify any of the provisions of this Section, Section
         512 or Section 1006, except to increase any such percentage or to
         provide with respect to any particular series the right to condition
         the effectiveness of any supplemental indenture as to that series on
         the consent of the Holders of a specified percentage of the aggregate
         principal amount of Outstanding Securities of such series (which
         provision may be made pursuant to Section 301 without the consent of
         any Holder) or to provide that certain other provisions of this
         Indenture cannot be modified or waived without the consent of the
         Holder of each Outstanding Security affected thereby, provided,
         however, that this clause shall not be deemed to require the consent
         of any Holder with respect to changes in the references to "the





                                       50
<PAGE>   59
         Trustee" and concomitant changes in this Section and Section 1006, or
         the deletion of this proviso, in accordance with the requirements of
         Sections 611(b) and 901(7).

A supplemental indenture which changes or eliminates any covenant or other
provision of this Indenture which has expressly been included solely for the
benefit of one or more particular series of Securities, or which modifies the
rights of the Holders of Securities of such series with respect to such
covenant or other provision, shall be deemed not to affect the rights under
this Indenture of the Holders of Securities of any other series.

                 It shall not be necessary for any Act of Holders under this
Section to approve the particular form of any proposed supplemental indenture,
but it shall be sufficient if such Act shall approve the substance thereof.

SECTION 903.  Execution of Supplemental Indentures.

                 In executing, or accepting the additional trusts created by,
any supplemental indenture permitted by this Article or the modifications
thereby of the trusts created by this Indenture, the Trustee shall be entitled
to receive, and (subject to Section 601) shall be fully protected in relying
upon, an Opinion of Counsel stating that the execution of such supplemental
indenture is authorized or permitted by this Indenture.  The Trustee may, but
shall not be obligated to, enter into any such supplemental indenture which
affects the Trustee's own rights, duties, immunities or liabilities under this
Indenture or otherwise.

SECTION 904.  Effect of Supplemental Indentures.

                 Upon the execution of any supplemental indenture under this
Article, this Indenture shall be modified in accordance therewith, and such
supplemental indenture shall form a part of this Indenture for all purposes;
and every Holder of Securities theretofore or thereafter authenticated and
delivered hereunder shall be bound thereby.

SECTION 905.  Conformity With Trust Indenture Act.

                 Every supplemental indenture executed pursuant to this Article
shall conform to the requirements of the Trust Indenture Act as then in effect.

SECTION 906.  Reference in Securities to Supplemental Indentures.

                 Securities of any series authenticated and delivered after the
execution of any supplemental indenture pursuant to this Article may, and shall
if required by the Trustee, bear a notation in form approved by the Trustee as
to any matter provided for in such supplemental indenture.  If the Company
shall so determine, new Securities of any series so modified as to conform, in
the opinion of the Trustee and the Company, to any such supplemental indenture
may be prepared and executed by the Company and authenticated and delivered by
the Trustee in exchange for Outstanding Securities of such series.





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<PAGE>   60
                                  ARTICLE TEN

                                   COVENANTS

SECTION 1001.  Payment of Principal, Premium and Interest.

                 The Company covenants and agrees for the benefit of each
series of Securities that it will duly and punctually pay the principal of (and
premium, if any), interest on and any Additional Amounts with respect to the
Securities of that series in accordance with the terms of the Securities and
this Indenture.

SECTION 1002.  Maintenance of Office or Agency.

                 The Company will maintain in each Place of Payment for any
series of Securities an office or agency where Securities of that series may be
presented or surrendered for payment, where Securities of that series may be
surrendered for registration of transfer or exchange and where notices and
demands to or upon the Company in respect of the Securities of that series and
this Indenture may be served.  The Company will give prompt written notice to
the Trustee of the location, and any change in the location, of such office or
agency.  If at any time the Company shall fail to maintain any such required
office or agency or shall fail to furnish the Trustee with the address thereof,
such presentations, surrenders, notices and demands may be made or served at
the Corporate Trust Office of the Trustee.

                 The Company may also from time to time designate one or more
other offices or agencies where the Securities of one or more series may be
presented or surrendered for any or all such purposes and may from time to time
rescind such designations; provided, however, that no such designation or
rescission shall in any manner relieve the Company of its obligation to
maintain an office or agency in each Place of Payment for Securities of any
series for such purposes.  The Company will give prompt written notice to the
Trustee of any such designation or rescission and of any change in the location
of any such other office or agency.

SECTION 1003.  Money for Securities Payments to be Held in Trust.

                 If the Company shall at any time act as its own Paying Agent
with respect to any series of Securities, it will, on or before each due date
of the principal of (and premium, if any) or interest on or any Additional
Amounts with respect to any of the Securities of that series, segregate and
hold in trust for the benefit of the Persons entitled thereto a sum sufficient
to pay the principal (and premium, if any) or interest or any Additional
Amounts so becoming due until such sums shall be paid to such Persons or
otherwise disposed of as herein provided and will promptly notify the Trustee
of its action or failure so to act.

                 Whenever the Company shall have one or more Paying Agents for
any series of Securities, the Company will, on or before each due date of the
principal of (and premium, if any) or interest on any Securities of that
series, deposit with a Paying Agent a sum sufficient to pay the principal (and
premium, if any) or interest so becoming due, such sum to be held in trust for
the





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<PAGE>   61
benefit of the Persons entitled to such principal, premium or interest, and
(unless such Paying Agent is the Trustee) the Company will promptly notify the
Trustee of its action or failure so to act.

                 The Company will cause each Paying Agent for any series of
Securities other than the Trustee to execute and deliver to the Trustee an
instrument in which such Paying Agent shall agree with the Trustee, subject to
the provisions of this Section, that such Paying Agent will:

                 (1)      hold all sums held by it for the payment of the
         principal of (and premium, if any), interest on or any Additional
         Amounts with respect to Securities of that series in trust for the
         benefit of the Persons entitled thereto until such sums shall be paid
         to such Persons or otherwise disposed of as herein provided;

                 (2)      give the Trustee notice of any default by the Company
         (or any other obligor upon the Securities of that series) in the
         making of any payment of principal (and premium, if any), interest on
         or any Additional Amounts with respect to the Securities of that
         series; and

                 (3)      at any time during the continuance of any such
         default, upon the written request of the Trustee, forthwith pay to the
         Trustee all sums so held in trust by such Paying Agent.

                 The Company may at any time, for the purpose of obtaining the
satisfaction and discharge of this Indenture or for any other purpose, pay, or
by Company Order direct any Paying Agent to pay, to the Trustee all sums held
in trust by the Company or such Paying Agent, such sums to be held by the
Trustee upon the same trusts as those upon which sums were held by the Company
or such Paying Agent; and, upon such payment by any Paying Agent to the
Trustee, such Paying Agent shall be released from all further liability with
respect to such money.

                 Any money deposited with the Trustee or any Paying Agent, or
then held by the Company, in trust for the payment of the principal of (and
premium, if any) or interest on or any Additional Amounts with respect to any
Security of any series and remaining unclaimed for three years after such
principal (and premium, if any) or interest or Additional Amounts have become
due and payable shall, unless otherwise required by mandatory provisions of
applicable escheat, or abandoned or unclaimed property law, be paid to the
Company on Company Request, or (if then held by the Company) shall be
discharged from such trust; and the Holder of such Security shall thereafter,
as an unsecured general creditor, look only to the Company for payment thereof,
and all liability of the Trustee or such Paying Agent with respect to such
trust money, and all liability of the Company as trustee thereof, shall
thereupon cease; provided, however, that the Trustee or such Paying Agent,
before being required to make any such repayment, may at the expense of the
Company cause to be published once, in an Authorized Newspaper in The Borough
of Manhattan, The City of New York and in such other Authorized Newspapers as
the Trustee shall deem appropriate, notice that such money remains unclaimed
and that, after a date specified therein, which shall not be less than 30 days
from the date of such publication, any unclaimed balance of such money then
remaining will, unless otherwise required by mandatory provisions of applicable
escheat, or abandoned or unclaimed property law, be repaid to the Company.





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<PAGE>   62
SECTION 1004.  Existence.

                 Subject to Article Eight, the Company will do or cause to be 
done all things necessary to preserve and keep in full force and effect its 
corporate existence.

SECTION 1005.  Statement by Officers as to Default.

                 The Company will deliver to the Trustee, within 120 days after
the end of each fiscal year of the Company ending after the date hereof so long
as any Security is outstanding hereunder, an Officers' Certificate complying
with Section 314(a) of the Trust Indenture Act, stating that a review of the
activities of the Company during such year and of performance under this
Indenture has been made under the supervision of the signers thereof and
whether or not to the best of their knowledge, based upon such review, the
Company is in default in the performance, observance or fulfillment of any of
its covenants and other obligations under this Indenture, and if the Company
shall be in default, specifying each such default known to them and the nature
and status thereof.  One of the officers signing the Officers' Certificate
delivered pursuant to this Section 1005 shall be the principal executive,
financial or accounting officer of the Company.

                 For purposes of this Section, such compliance shall be
determined without regard to any period of grace or requirement of notice
provided under this Indenture.

SECTION 1006.  Waiver of Certain Covenants.

                 The Company may omit in any particular instance to comply with
any covenant or condition set forth in Section 1004, or any covenant added for
the benefit of any series of Securities as contemplated by Section 301 (unless
otherwise specified pursuant to Section 301) if before or after the time for
such compliance the Holders of a majority in principal amount of the
Outstanding Securities of all series affected by such omission (acting as one
class) shall, by Act of such Holders, either waive such compliance in such
instance or generally waive compliance with such covenant or condition, but no
such waiver shall extend to or affect such covenant or condition except to the
extent so expressly waived, and, until such waiver shall become effective, the
obligations of the Company and the duties of the Trustee in respect of any such
covenant or condition shall remain in full force and effect.

SECTION 1007.  Additional Amounts.

                 If the Securities of a series expressly provide for the
payment of Additional Amounts, the Company will pay to the Holder of any
Security of such series Additional Amounts as expressly provided therein.
Whenever in this Indenture there is mentioned, in any context, the payment of
the principal of or any premium or interest on, or in respect of, any Security
of any series or the net proceeds received from the sale or exchange of any
Security of any series, such mention shall be deemed to include mention of the
payment of Additional





                                       54
<PAGE>   63
Amounts provided for in this Section to the extent that, in such context,
Additional Amounts are, were or would be payable in respect thereof pursuant to
the provisions of this Section and express mention of the payment of Additional
Amounts (if applicable) in any provisions hereof shall not be construed as
excluding Additional Amounts in those provisions hereof where such express
mention is not made.

                 If the Securities of a series provide for the payment of
Additional Amounts, at least 10 days prior to the FIRST Interest Payment Date
with respect to that series of Securities (or if the Securities of that series
will not bear interest prior to Maturity, the first day on which a payment of
principal and any premium is made), and at least 10 days prior to each date of
payment of principal and any premium or interest if there has been any change
with respect to the matters set forth in the below-mentioned Officers'
Certificate, the Company shall furnish the Trustee and the Company's principal
Paying Agent or Paying Agents, if other than the Trustee, with an Officers'
Certificate instructing the Trustee and such Paying Agent or Paying Agents
whether such payment of principal of and any premium or interest on the
Securities of that series shall be made to Holders of Securities of that series
who are United States Aliens without withholding for or on account of any tax,
assessment or other governmental charge described in the Securities of that
series.  If any such withholding shall be required, then such Officers'
Certificate shall specify by country the amount, if any, required to be
withheld on such payments to such Holders of Securities and the Company will
pay to such Paying Agent the Additional Amounts required by this Section.  The
Company covenants to indemnify the Trustee and any Paying Agent for, and to
hold them harmless against any loss, liability or expense reasonably incurred
without negligence or bad faith on their part arising out of or in connection
with actions taken or omitted by any of them in reliance on any Officers'
Certificate furnished pursuant to this Section 1007.

                                 ARTICLE ELEVEN

                            REDEMPTION OF SECURITIES

SECTION 1101.  Applicability of Article.

                 Securities of any series which are redeemable before their
Stated Maturity shall be redeemable in accordance with their terms and (except
as otherwise specified as contemplated by Section 301 for Securities of any
series) in accordance with this Article.

SECTION 1102.  Election to Redeem; Notice to Trustee.

                 Unless otherwise provided with respect to the Securities of a
series as contemplated by Section 301, the election of the Company to redeem
any Securities shall be evidenced by a Board Resolution.  In case of any
redemption at the election of the Company of less than all the Securities of
any series, the Company shall, a reasonable period prior to the Redemption Date
fixed by the Company (unless a shorter notice shall be satisfactory to the
Trustee), notify the Trustee of such Redemption Date and of the principal
amount of Securities of such series to be redeemed.  In the case of any
redemption of Securities prior to the expiration of any restriction on such
redemption provided in the terms of such Securities or elsewhere in this
Indenture, the Company shall furnish the Trustee with an Officers' Certificate
evidencing compliance with such restriction.





                                       55
<PAGE>   64
SECTION 1103.  Selection by Trustee of Securities to be Redeemed.

                 If less than all the Securities of any series are to be
redeemed, the particular Securities to be redeemed shall be selected not more
than 60 days prior to the Redemption Date by the Trustee, from the Outstanding
Securities of such series not previously called for redemption, by such method
as the Trustee shall deem fair and appropriate and which may provide for the
selection for redemption of portions (equal to the minimum authorized
denomination for Securities of that series or any integral multiple thereof) of
the principal amount of Securities of such series of a denomination larger than
the minimum authorized denomination for Securities of that series or of the
principal amount of global Securities of such series.

                 The Trustee shall promptly notify the Company and the Security
Registrar in writing of the Securities selected for redemption and, in the case
of any Securities selected for partial redemption, the principal amount thereof
to be redeemed.

                 For all purposes of this Indenture, unless the context
otherwise requires, all provisions relating to the redemption of Securities
shall relate, in the case of any Securities redeemed or to be redeemed only in
part, to the portion of the principal amount of such Securities which has been
or is to be redeemed.

SECTION 1104.  Notice of Redemption.

                 Notice of redemption shall be given in the manner provided in
Section 107 to each Holder of Securities to be redeemed not less than 30 nor
more than 60 days prior to the Redemption Date.

                 All notices of redemption shall state:

                 (1)      the Redemption Date;

                 (2)      the Redemption Price;

                 (3)      if less than all the Outstanding Securities of any
         series are to be redeemed, the identification (and, in the case of
         partial redemption, the principal amounts) of the particular
         Securities to be redeemed;

                 (4)      that on the Redemption Date the Redemption Price will
         become due and payable upon each such Security to be redeemed and, if
         applicable, that interest thereon will cease to accrue on and after
         said date;

                 (5)      the place or places where such Securities are to be
         surrendered for payment of the Redemption Price;

                 (6)      that the redemption is for a sinking fund, if such is
         the case; and





                                       56
<PAGE>   65
                 (7)      the "CUSIP" number, if applicable.

                 A notice of redemption as contemplated by Section 107 need not
identify particular Securities to be redeemed.  Notice of redemption of
Securities to be redeemed at the election of the Company shall be given by the
Company or, at the Company's request, by the Trustee in the name and at the
expense of the Company.

SECTION 1105.  Deposit of Redemption Price.

                 On or before 10:00 a.m., Houston, Texas time, on any
Redemption Date, the Company shall deposit with the Trustee or with a Paying
Agent (or, if the Company is acting as its own Paying Agent, segregate and hold
in trust as provided in Section 1003) an amount of money sufficient to pay the
Redemption Price of, and (except if the Redemption Date shall be an Interest
Payment Date) accrued interest on, and any Additional Amounts with respect to,
all the Securities which are to be redeemed on that date.

SECTION 1106.  Securities Payable on Redemption Date.

                 Notice of redemption having been given as aforesaid, the
Securities so to be redeemed shall, on the Redemption Date, become due and
payable at the Redemption Price therein specified, and from and after such date
(unless the Company shall default in the payment of the Redemption Price and
accrued interest) such Securities shall cease to bear interest.  Upon surrender
of any such Security for redemption in accordance with said notice, such
Security shall be paid by the Company at the Redemption Price, together with
accrued interest (and any Additional Amounts) to the Redemption Date; provided,
however, that installments of interest whose Stated Maturity is on or prior to
the Redemption Date shall be payable to the Holders of such Securities, or one
or more Predecessor Securities, registered as such at the close of business on
the relevant Record Dates according to their terms and the provisions of
Section 307.

                 If any Security called for redemption shall not be so paid
upon surrender thereof for redemption, the principal (and premium, if any)
shall, until paid, bear interest from the Redemption Date at the rate
prescribed therefor in the Security or, in the case of Original Issue Discount
Securities, the Securities' Yield to Maturity.

SECTION 1107.  Securities Redeemed in Part.

                 Any Security which is to be redeemed only in part shall be
surrendered at a Place of Payment therefor (with, if the Company or the Trustee
so requires, due endorsement by, or a written instrument of transfer in form
satisfactory to the Company and the Trustee duly executed by, the Holder
thereof or his attorney duly authorized in writing), and the Company shall
execute, and the Trustee shall authenticate and deliver to the Holder of such
Security without service charge, a new Security or Securities of the same
series and Stated Maturity, of any authorized denomination as requested by such
Holder, in aggregate principal amount equal to and in exchange for the
unredeemed portion of the principal of the Security so surrendered.





                                       57
<PAGE>   66
SECTION 1108.  Purchase of Securities.

                 Unless otherwise specified as contemplated by Section 301, the
Company and any Affiliate of the Company may at any time purchase or otherwise
acquire Securities in the open market or by private agreement.  Such
acquisition shall not operate as or be deemed for any purpose to be a
redemption of the indebtedness represented by such Securities.  Any Securities
purchased or acquired by the Company may be delivered to the Trustee and, upon
such delivery, the indebtedness represented thereby shall be deemed to be
satisfied.  Section 309 shall apply to all Securities so delivered.

                                 ARTICLE TWELVE

                                 SINKING FUNDS

SECTION 1201.  Applicability of Article.

                 The provisions of this Article shall be applicable to any
sinking fund for the retirement of Securities of a series except as otherwise
specified as contemplated by Section 301 for Securities of such series.

                 The minimum amount of any sinking fund payment provided for by
the terms of Securities of any series is herein referred to as a "mandatory
sinking fund payment," and any payment in excess of such minimum amount
provided for by the terms of Securities of any series is herein referred to as
an "optional sinking fund payment."  Unless otherwise provided by the terms of
Securities of any series, the cash amount of any sinking fund payment may be
subject to reduction as provided in Section 1202.  Each sinking fund payment
shall be applied to the redemption of Securities of any series as provided for
by the terms of Securities of such series.

SECTION 1202.  Satisfaction of Sinking Fund Payments with Securities.

                 The Company (1) may deliver Outstanding Securities of a series
(other than any previously called for redemption), and (2) may apply as a
credit Securities of a series which have been redeemed either at the election
of the Company pursuant to the terms of such Securities or through the
application of permitted optional sinking fund payments pursuant to the terms
of such Securities, in each case in satisfaction of all or any part of any
sinking fund payment with respect to the Securities of such series required to
be made pursuant to the terms of such Securities as provided for by the terms
of such series; provided that such Securities have not been previously so
credited.  Such Securities shall be received and credited for such purpose by
the Trustee at the Redemption Price specified in such Securities for redemption
through operation of the sinking fund and the amount of such sinking payment
shall be reduced accordingly.

SECTION 1203.  Redemption of Securities for Sinking Fund.

                 Not less than 45 days prior (unless a shorter period shall be
satisfactory to the Trustee) to each sinking fund payment date for any series
of Securities, the Company will deliver





                                       58
<PAGE>   67
to the Trustee an Officers' Certificate specifying the amount of the next
ensuing sinking fund payment for that series pursuant to the terms of that
series, the portion thereof, if any, which is to be satisfied by payment of
cash and the portion thereof, if any, which is to be satisfied by delivery of
or by crediting Securities of that series pursuant to Section 1202 and will
also deliver to the Trustee any Securities to be so delivered.  Not less than
30 days before each such sinking fund payment date the Trustee shall select the
Securities to be redeemed upon such sinking fund payment date in the manner
specified in Section 1103 and cause notice of the redemption thereof to be
given in the name of and at the expense of the Company in the manner provided
in Section 1104.  Such notice having been duly given, the redemption of such
Securities shall be made upon the terms and in the manner stated in Sections
1106 and 1107.

                                ARTICLE THIRTEEN

                       MEETINGS OF HOLDERS OF SECURITIES

SECTION 1301.  Purposes for Which Meetings May Be Called.

                 A meeting of Holders of Securities of any or all series may be
called at any time and from time to time pursuant to this Article to make, give
or take any request, demand, authorization, direction, notice, consent, waiver
or other action provided by this Indenture to be made, given or taken by
Holders of Securities of such series.

SECTION 1302.  Call, Notice and Place of Meetings.

                 (a)      The Trustee may at any time call a meeting of Holders
of Securities of any series for any purpose specified in Section 1301, to be
held at such time and at such place in Houston, Texas, or in New York, New
York, or in London, England, or in any other location, as the Trustee shall
determine.  Notice of every meeting of Holders of Securities of any series,
setting forth the time and the place of such meeting and in general terms the
action proposed to be taken at such meeting, shall be given, in the manner
provided in Section 107, not less than 20 nor more than 180 days prior to the
date fixed for the meeting.

                 (b)      In case at any time the Company, pursuant to a Board
Resolution, or the Holders of at least 10% in aggregate principal amount of the
Outstanding Securities of any series, shall have requested the Trustee for any
such series to call a meeting of the Holders of Securities of such series for
any purpose specified in Section 1301, by written request setting forth in
reasonable detail the action proposed to be taken at the meeting, and the
Trustee shall not have made the first publication of the notice of such meeting
within 30 days after receipt of such request or shall not thereafter proceed to
cause the meeting to be held as provided herein, then the Company or the
Holders of Securities of such series in the amount above specified, as the case
may be, may determine the time and the place in Houston, Texas, or in New York,
New York, or in London, England, for such meeting and may call such meeting for
such purposes by giving notice thereof as provided in Subsection (a) of this
Section.





                                       59
<PAGE>   68
SECTION 1303.  Persons Entitled to Vote at Meetings.

                 To be entitled to vote at any meeting of Holders of Securities
of any series, a Person shall be (1) a Holder of one or more Outstanding
Securities of such series, or (2) a Person appointed by an instrument in
writing as proxy for a Holder or Holders of one or more Outstanding Securities
of such series by such Holder or Holders.  The only Persons who shall be
entitled to be present or to speak at any meeting of Holders of Securities of
any series shall be the Persons entitled to vote at such meeting and their
counsel, any representatives of the Trustee and its counsel and any
representatives of the Company and its counsel.

SECTION 1304.  Quorum; Action.

                 The Persons entitled to vote a majority in aggregate principal
amount of the Outstanding Securities of a series shall constitute a quorum for
a meeting of Holders of Securities of such series.  In the absence of a quorum
within 30 minutes of the time appointed for any such meeting, the meeting
shall, if convened at the request of Holders of Securities of such series, be
dissolved.  In any other case, the meeting may be adjourned for a period of not
less than 10 days as determined by the chairman of the meeting prior to the
adjournment of such meeting.  In the absence of a quorum at any such adjourned
meeting, such adjourned meeting may be further adjourned for a period of not
less than 10 days as determined by the chairman of the meeting prior to the
adjournment of such adjourned meeting.  Subject to Section 1305(d), notice of
the reconvening of any adjourned meeting shall be given as provided in Section
1302(a), except that such notice need be given only once not less than five
days prior to the date on which the meeting is scheduled to be reconvened.
Notice of the reconvening of an adjourned meeting shall state expressly that
Persons entitled to vote a majority in principal amount of the Outstanding
Securities of such series shall constitute a quorum.

                 Except as limited by the first proviso to Section 902, any
resolution presented to a meeting or adjourned meeting duly reconvened at which
a quorum is present as aforesaid may be adopted by the affirmative vote of the
Holders of a majority in aggregate principal amount of the Outstanding
Securities of that series; provided, however, that, except as limited by the
first proviso to Section 902, any resolution with respect to any request,
demand, authorization, direction, notice, consent or waiver which this
Indenture expressly provides may be made, given or taken by the Holders of a
specified percentage that is less than a majority in aggregate principal amount
of the Outstanding Securities of a series may be adopted at a meeting or an
adjourned meeting duly reconvened and at which a quorum is present as aforesaid
by the affirmative vote of the Holders of such specified percentage in
aggregate principal amount of the Outstanding Securities of that series.

                 Except as limited by the first proviso to Section 902, any
resolution passed or decision taken at any meeting of Holders of Securities of
any series duly held in accordance with this Section shall be binding on all
the Holders of Securities of such series, whether or not present or represented
at the meeting.





                                       60
<PAGE>   69
SECTION 1305.  Determination of Voting Rights; Conduct and Adjournment of
               Meetings.

                 (a)      The holding of Securities shall be proved in the
         manner specified in Section 105 and the appointment of any proxy shall
         be proved in the manner specified in Section 105.  Such regulations
         may provide that written instruments appointing proxies, regular on
         their face, may be presumed valid and genuine without the proof
         specified in Section 105 or other proof.

                 (b)      The Trustee shall, by an instrument in writing,
         appoint a temporary chairman of the meeting, unless the meeting shall
         have been called by the Company or by Holders of Securities as
         provided in Section 1302(b), in which case the Company or the Holders
         of Securities of the series calling the meeting, as the case may be,
         shall appoint a temporary chairman.  A permanent chairman and a
         permanent secretary of the meeting shall be elected by vote of the
         Persons entitled to vote a majority in aggregate principal amount of
         the Outstanding Securities of such series represented at the meeting.

                 (c)      At any meeting each Holder of a Security of such
         series and each proxy shall be entitled to one vote for each $1,000
         principal amount of the Outstanding Securities of such series held or
         represented by him; provided, however, that no vote shall be cast or
         counted at any meeting in respect of any Security challenged as not
         Outstanding and ruled by the chairman of the meeting to be not
         Outstanding.  The chairman of the meeting shall have no right to vote,
         except as a Holder of a Security of such series or as a proxy.

                 (d)      Any meeting of Holders of Securities of any series
         duly called pursuant to Section 1302 at which a quorum is present may
         be adjourned from time to time by Persons entitled to vote a majority
         in aggregate principal amount of the Outstanding Securities of such
         series represented at the meeting; and the meeting may be held as so
         adjourned without further notice.

SECTION 1306.  Counting Votes and Recording Action of Meetings.

                 The vote upon any resolution submitted to any meeting of
Holders of Securities of any series shall be by written ballots on which shall
be subscribed the signatures of the Holders of Securities of such series or of
their representatives by proxy and the principal amounts and serial numbers of
the Outstanding Securities of such series held or represented by them.  The
permanent chairman of the meeting shall appoint two inspectors of votes who
shall count all votes cast at the meeting for or against any resolution and who
shall make and file with the secretary of the meeting their verified written
reports in duplicate of all votes cast at the meeting.  A record, at least in
duplicate, of the proceedings of each meeting of Holders of Securities of any
series shall be prepared by the secretary of the meeting and there shall be
attached to such record the original reports of the inspectors of votes on any
vote by ballot taken thereat and affidavits by one or more persons having
knowledge of the facts setting forth a copy of the notice of the meeting and
showing that such notice was given as provided in Section 1302 and, if
applicable, Section 1304.  Each copy shall be signed and verified by the
affidavits of the permanent chairman and secretary of the meeting and one such
copy shall be delivered to the Company, and another to the Trustee to be
preserved by the Trustee,





                                       61
<PAGE>   70
the latter to have attached thereto the ballots voted at the meeting.  Any
record so signed and verified shall be conclusive evidence of the matters
therein stated.

                             *         *          *

                 This instrument may be executed in any number of counterparts,
each of which so executed shall be deemed to be an original, but all such
counterparts shall together constitute but one and the same instrument.


                 IN WITNESS WHEREOF, the parties hereto have caused this
Indenture to be duly executed as of the day and year first above written.



                                        COOPER CAMERON CORPORATION


                                        By  
                                          -------------------------------------
                                              Name:
                                              Title:



                                        THE FIRST NATIONAL BANK OF CHICAGO, 
                                        Trustee



                                        By 
                                          -------------------------------------
                                              Name:
                                              Title:





                                       62

<PAGE>   1
                                                                     EXHIBIT 4.4
================================================================================



                           COOPER CAMERON CORPORATION

                                      AND

                            ------------------------

                                    TRUSTEE



                            ------------------------



                                   INDENTURE

                                  DATED AS OF

                         _______________________, 1998



                                DEBT SECURITIES
                              (SUBORDINATED DEBT)



================================================================================
<PAGE>   2
                           Cooper Cameron Corporation

           Reconciliation and tie between Trust Indenture Act of 1939
               and Indenture, dated as of _________________, 1998




<TABLE>
<CAPTION>
Section of
Trust Indenture                                                                               Section(s) of
Act of 1939                                                                                     Indenture
- -----------                                                                                     ---------
<S>           <C>                                                                             <C>
Section 310   (a)(1)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        609
              (a)(2)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        609
              (a)(3)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        Not Applicable
              (a)(4)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        Not Applicable
              (b)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        608, 610
Section 311   (a)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        613
              (b)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        613
              (c)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        Not Applicable
Section 312   (a)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        701, 702(a)
              (b)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        702(b)
              (c)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        702(c)
Section 313   (a)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        703(a)
              (b)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        703(b)
              (c)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        703(c)
              (d)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        703(d)
Section 314   (a)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        704, 1005
              (b)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        Not Applicable
              (c)(1)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        103
              (c)(2)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        103
              (c)(3)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        Not Applicable
              (d)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        Not Applicable
              (e)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        103
Section 315   (a)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        601(a)
              (b)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        602
              (c)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        601(b)
              (d)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        601(c)
              (d)(1)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        601(a)(1)
              (d)(2)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        601(c)(2)
              (d)(3)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        601(c)(3)
              (e)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        513
Section 316   (a)(1)(A)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        502, 511
              (a)(1)(B)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        512
              (a)(2)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        Not Applicable
              (a)(last sentence)  . . . . . . . . . . . . . . . . . . . . . . . . . . . .        101
              (b)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        508
Section 317   (a)(1)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        503
              (a)(2)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        504
              (b)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        1003
Section 318   (a)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        108
</TABLE>

- ----------
Note:    This reconciliation and tie shall not, for any purpose, be deemed to
         be a part of the Indenture.
<PAGE>   3
                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                                     Page
                                                                                                                     ----
<S>                                                                                                                  <C>
RECITALS OF THE COMPANY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

                                                       ARTICLE ONE
                                             DEFINITIONS AND OTHER PROVISIONS
                                                  OF GENERAL APPLICATION

SECTION 101.  Definitions.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
         Act  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
         Additional Amounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
         Affiliate  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
         Agent Members  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
         Authenticating Agent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
         Authorized Newspaper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
         Board of Directors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
         Board Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
         Business Day . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
         Capital Stock  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
         Capitalized Lease Obligation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
         Commission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
         Company  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
         Company Request" and "Company Order  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
         Conversion Event . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
         Corporate Trust Office . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
         Defaulted Interest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
         Depositary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
         Designated Senior Indebtedness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
         Disqualified Capital Stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
         Dollar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
         Event of Default . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
         Exchange Rate  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
         Holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
         Indebtedness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
         Indenture  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
         interest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
         Interest Payment Date  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
         Interest Swap and Hedging Obligation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
         Judgment Currency  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
         Junior security  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
         Maturity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
         Officers' Certificate  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
</TABLE>





                                       i
<PAGE>   4
<TABLE>
<CAPTION>
                                                                                                                     PAGE
                                                                                                                     ----
<S>                                                                                                                  <C>
         Opinion of Counsel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
         Original Issue Discount Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
         Outstanding  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
         Paying Agent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
         Payment Default  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
         Payment Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
         Person . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
         Place of Payment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
         Predecessor Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
         Qualified Capital Stock  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
         Redemption Date  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
         Redemption Price . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
         Regular Record Date  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
         Required Currency  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
         Responsible Officer  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
         Securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
         Security Custodian . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
         Security Register  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
         Senior Indebtedness  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
         Special Record Date  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
         Stated Maturity  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
         Subsidiary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
         Trustee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
         Trust Indenture Act  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
         United States  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
         United States Alien  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
         U.S. Government Obligations  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
         Vice President . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
         Wholly Owned Subsidiary  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
         Yield to Maturity  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

SECTION 102.  Incorporation by Reference of Trust Indenture Act.  . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
SECTION 103.  Compliance Certificates and Opinions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10
SECTION 104.  Form of Documents Delivered to Trustee. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10
SECTION 105.  Acts of Holders; Record Dates.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11
SECTION 106.  Notices, Etc., to Trustee and Company.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12
SECTION 107.  Notice to Holders; Waiver.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12
SECTION 108.  Conflict With Trust Indenture Act.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
SECTION 109.  Effect of Headings and Table of Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
SECTION 110.  Successors and Assigns. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
SECTION 111.  Separability Clause.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
SECTION 112.  Benefits of Indenture.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
</TABLE>





                                       ii
<PAGE>   5
<TABLE>
<CAPTION>
                                                                                                                     PAGE
                                                                                                                     ----
<S>           <C>                                                                                                    <C>
SECTION 113.  Governing Law.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  14
SECTION 114.  Legal Holidays. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  14
SECTION 115.  Corporate Obligation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  14

                                                       ARTICLE TWO
                                                      SECURITY FORMS

SECTION 201.  Forms Generally.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  14
SECTION 202.  Form of Trustee's Certificate of Authentication.  . . . . . . . . . . . . . . . . . . . . . . . . . . .  15
SECTION 203.  Securities in Global Form.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15

                                                      ARTICLE THREE
                                                      THE SECURITIES

SECTION 301.  Amount Unlimited; Issuable in Series. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  18
SECTION 302.  Denominations.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  21
SECTION 303.  Execution, Authentication Delivery and Dating.  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  21
SECTION 304.  Temporary Securities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  22
SECTION 305.  Registration, Registration of Transfer and Exchange.  . . . . . . . . . . . . . . . . . . . . . . . . .  23
SECTION 306.  Mutilated, Destroyed, Lost and Stolen Securities. . . . . . . . . . . . . . . . . . . . . . . . . . . .  24
SECTION 307.  Payment of Interest; Interest Rights Preserved. . . . . . . . . . . . . . . . . . . . . . . . . . . . .  25
SECTION 308.  Persons Deemed Owners.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  26
SECTION 309.  Cancellation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  26
SECTION 310.  Computation of Interest.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  26
SECTION 311.  CUSIP Numbers.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  26

                                                       ARTICLE FOUR
                                                SATISFACTION AND DISCHARGE

SECTION 401.  Satisfaction and Discharge of Indenture.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27
SECTION 402.  Application of Trust Money. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  29
SECTION 403.  Discharge of Liability on Securities of Any Series. . . . . . . . . . . . . . . . . . . . . . . . . . .  29
SECTION 404.  Reinstatement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30

                                                       ARTICLE FIVE
                                                         REMEDIES

SECTION 501.  Events of Default.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30
SECTION 502.  Acceleration of Maturity; Rescission and Annulment. . . . . . . . . . . . . . . . . . . . . . . . . . .  32
SECTION 503.  Collection of Indebtedness and Suits for Enforcement by Trustee.  . . . . . . . . . . . . . . . . . . .  33
SECTION 504.  Trustee May File Proofs of Claim. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  34
SECTION 505.  Trustee May Enforce Claims Without Possession of Securities or Coupons. . . . . . . . . . . . . . . . .  35
</TABLE>





                                      iii
<PAGE>   6
<TABLE>
<CAPTION>
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                                                                                                                     ----
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SECTION 506.  Application of Money Collected. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  35
SECTION 507.  Limitation on Suits.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  36
SECTION 508.  Unconditional Right of Holders to Receive Principal Premium and Interest  . . . . . . . . . . . . . . .  36
SECTION 509.  Restoration of Rights and Remedies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  37
SECTION 510.  Rights and Remedies Cumulative. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  37
SECTION 511.  Delay or Omission Not Waiver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  37
SECTION 512.  Control by Holders. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  37
SECTION 513.  Waiver of Past Defaults.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  38
SECTION 514.  Undertaking for Costs.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  38
SECTION 515.  Waiver of Stay or Extension Laws  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  38

                                                       ARTICLE SIX
                                                       THE TRUSTEE

SECTION 601.  Certain Duties and Responsibilities.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39
SECTION 602.  Notice of Defaults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  40
SECTION 603.  Certain Rights of Trustee.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  40
SECTION 604.  Not Responsible for Recitals or Issuance of Securities. . . . . . . . . . . . . . . . . . . . . . . . .  41
SECTION 605.  May Hold Securities.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  41
SECTION 606.  Money Held in Trust.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  41
SECTION 607.  Compensation and Reimbursement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  42
SECTION 608.  Disqualification; Conflicting Interests.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  42
SECTION 609.  Corporate Trustee Required; Eligibility.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  43
SECTION 610.  Resignation and Removal; Appointment of Successor.  . . . . . . . . . . . . . . . . . . . . . . . . . .  43
SECTION 611.  Acceptance of Appointment by Successor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  45
SECTION 612.  Merger, Conversion, Consolidation or Succession to Business.  . . . . . . . . . . . . . . . . . . . . .  46
SECTION 613.  Preferential Collection of Claims Against Company.  . . . . . . . . . . . . . . . . . . . . . . . . . .  46
SECTION 614.  Appointment of Authenticating Agent.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  46

                                                      ARTICLE SEVEN
                                    HOLDER'S LISTS AND REPORTS BY TRUSTEE AND COMPANY

SECTION 701.  Company to Furnish Trustee Names and Addresses of Holders.  . . . . . . . . . . . . . . . . . . . . . .  48
SECTION 702.  Preservation of Information; Communications to Holders. . . . . . . . . . . . . . . . . . . . . . . . .  48
SECTION 703.  Reports by Trustee. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  49
SECTION 704.  Reports by Company. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  49

                                                      ARTICLE EIGHT
                                   CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

SECTION 801.  Company May Consolidate, Etc., Only on Certain Terms. . . . . . . . . . . . . . . . . . . . . . . . . .  50
SECTION 802.  Successor Person Substituted. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  50

</TABLE>




                                       iv
<PAGE>   7
<TABLE>
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                                                       ARTICLE NINE
                                                 SUPPLEMENTAL INDENTURES

SECTION 901.  Supplemental Indentures Without Consent of Holders. . . . . . . . . . . . . . . . . . . . . . . . . . .  51
SECTION 902.  Supplemental Indentures With Consent of Holders.  . . . . . . . . . . . . . . . . . . . . . . . . . . .  52
SECTION 903.  Execution of Supplemental Indentures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  53
SECTION 904.  Effect of Supplemental Indentures.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  53
SECTION 905.  Conformity With Trust Indenture Act.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  53
SECTION 906.  Reference in Securities to Supplemental Indentures. . . . . . . . . . . . . . . . . . . . . . . . . . .  53

                                                       ARTICLE TEN
                                                        COVENANTS

SECTION 1001.  Payment of Principal, Premium and Interest.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  54
SECTION 1002.  Maintenance of Office or Agency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  54
SECTION 1003.  Money for Securities Payments to be Held in Trust. . . . . . . . . . . . . . . . . . . . . . . . . . .  54
SECTION 1004.  Existence. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  56
SECTION 1005.  Statement by Officers as to Default. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  56
SECTION 1006.  Waiver of Certain Covenants. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  56
SECTION 1007.  Additional Amounts.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  56

                                                      ARTICLE ELEVEN
                                                 REDEMPTION OF SECURITIES

SECTION 1101.  Applicability of Article.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  57
SECTION 1102.  Election to Redeem; Notice to Trustee. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  57
SECTION 1103.  Selection by Trustee of Securities to be Redeemed. . . . . . . . . . . . . . . . . . . . . . . . . . .  58
SECTION 1104.  Notice of Redemption.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  58
SECTION 1105.  Deposit of Redemption Price. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  59
SECTION 1106.  Securities Payable on Redemption Date. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  59
SECTION 1107.  Securities Redeemed in Part. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  59
SECTION 1108.  Purchase of Securities.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  60

                                                      ARTICLE TWELVE
                                                      SINKING FUNDS

SECTION 1201.  Applicability of Article.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  60
SECTION 1202.  Satisfaction of Sinking Fund Payments with Securities. . . . . . . . . . . . . . . . . . . . . . . . .  60
SECTION 1203.  Redemption of Securities for Sinking Fund. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  60

</TABLE>




                                       v
<PAGE>   8
<TABLE>
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                                                     ARTICLE THIRTEEN
                                                      SUBORDINATION

SECTION 1301.  Securities Subordinated to Senior Indebtedness . . . . . . . . . . . . . . . . . . . . . . . . . . . .  61
SECTION 1302.  No Payment on Securities in Certain Circumstances. . . . . . . . . . . . . . . . . . . . . . . . . . .  61
SECTION 1303.  Securities Subordinated to Prior Payment of All Senior Indebtedness
                     on Dissolution, Liquidation or Reorganization. . . . . . . . . . . . . . . . . . . . . . . . . .  62
SECTION 1304.  Subrogation to Rights of Holders of Senior Indebtedness. . . . . . . . . . . . . . . . . . . . . . . .  63
SECTION 1305.  Obligations of the Company Unconditional.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  64
SECTION 1306.  Trustee Entitled to Assume Payments Not Prohibited in Absence of Notice  . . . . . . . . . . . . . . .  65
SECTION 1307.  Application by Trustee of Amounts Deposited with It. . . . . . . . . . . . . . . . . . . . . . . . . .  65
SECTION 1308.  Subordination Rights Not Impaired by Acts or Omissions of the
                     Company or Holders of Senior Indebtedness. . . . . . . . . . . . . . . . . . . . . . . . . . . .  65
SECTION 1309.  Trustee to Effectuate Subordination of Securities  . . . . . . . . . . . . . . . . . . . . . . . . . .  66
SECTION 1310.  Right of Trustee to Hold Senior Indebtedness.  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  66
SECTION 1311.  Article Thirteen Not to Prevent Events of Default. . . . . . . . . . . . . . . . . . . . . . . . . . .  66
SECTION 1312.  No Fiduciary Duty of Trustee to Holders of Senior Indebtedness.  . . . . . . . . . . . . . . . . . . .  66
SECTION 1313.  Article Applicable to Paying Agent.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  67

                                                     ARTICLE FOURTEEN
                                            MEETINGS OF HOLDERS OF SECURITIES

SECTION 1401.  Purposes for Which Meetings May Be Called. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  67
SECTION 1402.  Call, Notice and Place of Meetings.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  67
SECTION 1403.  Persons Entitled to Vote at Meetings.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  68
SECTION 1404.  Quorum; Action.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  68
SECTION 1405.  Determination of Voting Rights; Conduct and Adjournment of Meetings. . . . . . . . . . . . . . . . . .  69
SECTION 1406.  Counting Votes and Recording Action of Meetings. . . . . . . . . . . . . . . . . . . . . . . . . . . .  69

</TABLE>




                                       vi
<PAGE>   9

                 INDENTURE, dated as of _______________, 1998 between COOPER
CAMERON CORPORATION, a corporation duly organized and existing under the laws
of the State of Delaware (herein called the "Company"), having its principal
office at 515 Post Oak Boulevard, Suite 1200, Houston, Texas 77027, and
___________________________, a [national banking association], as Trustee
(herein called the "Trustee"), the office of the Trustee at which at the date
hereof its corporate trust business is principally administered being
__________________________________.

                            RECITALS OF THE COMPANY

                 The Company has duly authorized the execution and delivery of
this Indenture to provide for the issuance from time to time of its unsecured
subordinated debentures, notes or other evidences of indebtedness (herein
called the "Securities"), to be issued in one or more series as in this
Indenture provided.

                 This Indenture is subject to the provisions of the Trust
Indenture Act and the rules and regulations of the Commission promulgated
thereunder that are required to be part of this Indenture and, to the extent
applicable, shall be governed by such provisions.

                 All things necessary to make this Indenture a valid agreement
of the Company, in accordance with its terms, have been done.

                 NOW, THEREFORE, THIS INDENTURE WITNESSETH:

                 For and in consideration of the premises and the purchase of
the Securities by the Holders thereof, it is mutually covenanted and agreed,
for the equal and proportionate benefit of all Holders of the Securities or of
series thereof, as follows:

                                  ARTICLE ONE

                        DEFINITIONS AND OTHER PROVISIONS
                             OF GENERAL APPLICATION

SECTION 101.  Definitions.

                 For all purposes of this Indenture, except as otherwise
expressly provided or unless the context otherwise requires:

                 (1)      the terms defined in this Article have the meanings
         assigned to them in this Article and include the plural as well as the
         singular;

                 (2)      all accounting terms not otherwise defined herein
         have the meanings assigned to them in accordance with generally
         accepted accounting principles in the United States, and, except as
         otherwise herein expressly provided, the term "generally accepted
         accounting principles" with respect to any computation required or
         permitted hereunder shall mean such
<PAGE>   10
         accounting principles as are generally accepted in the United States
         at the date of such computation; and

                 (3)      the words "herein", "hereof" and "hereunder" and
         other words of similar import refer to this Indenture as a whole and
         not to any particular Article, Section or other subdivision.

                 Certain terms, used principally in Article Six, are defined in
Section 102.

                 "Act", when used with respect to any Holder, has the meaning
specified in Section 105.

                 "Additional Amounts" means any additional amounts that are
required by the express terms of a Security or by or pursuant to a Board
Resolution, under circumstances specified therein or pursuant thereto, to be
paid by the Company with respect to certain taxes, assessments or other
governmental charges imposed on certain Holders and that are owing to such
Holders.

                 "Affiliate" of any specified Person means any other Person
directly or indirectly controlling or controlled by or under direct or indirect
common control with such specified Person.  For the purposes of this
definition, "control" when used with respect to any specified Person means the
power to direct the management and policies of such Person, directly or
indirectly, whether through the ownership of voting securities, by contract or
otherwise; and the terms "controlling" and "controlled" have meanings
correlative to the foregoing.

                 "Agent Members" has the meaning specified in Section 203.

                 "Authenticating Agent" means any Person, which may include the
Company, authorized by the Trustee to act on behalf of the Trustee pursuant to
Section 614 to authenticate Securities of one or more series.

                 "Authorized Newspaper" means a newspaper, in the English
language or in an official language of the country of publication, customarily
published on each Business Day, whether or not published on Saturdays, Sundays
or holidays, and of general circulation in the place in connection with which
the term is used or in the financial community of such place.  Where successive
publications are required to be made in Authorized Newspapers, the successive
publications may be made in the same or in different newspapers in the same
city meeting the foregoing requirements and in each case on any Business Day.

                 "Board of Directors" means either the board of directors of
the Company or any duly authorized committee of that board.

                 "Board Resolution" means a copy of a resolution certified by
the Secretary or an Assistant Secretary of the Company to have been duly
adopted by the Board of Directors and to be in full force and effect on the
date of such certification, and delivered to the Trustee.





                                       2
<PAGE>   11
                 "Business Day", when used with respect to any Place of
Payment, means each Monday, Tuesday, Wednesday, Thursday and Friday which is
not a day on which banking institutions in that Place of Payment are authorized
or obligated by law or executive order to close.

                 "Capital Stock" means, with respect to any Person, any and all
shares, interests, rights to purchase (other than convertible or exchangeable
Indebtedness), warrants, options, participations or other equivalents of or
interests (however designated) in stock issued by that Person.

                 "Capitalized Lease Obligation" means rental obligations under
a lease that are required to be capitalized for financial reporting purposes in
accordance with generally accepted accounting principles, and the amount of
Indebtedness represented by such obligations shall be the capitalized amount of
such obligations, as determined in accordance with generally accepted
accounting principles.

                 "Commission" means the Securities and Exchange Commission, as
from time to time constituted, created under the Securities Exchange Act of
1934, as amended, or, if at any time after the execution of this instrument
such Commission is not existing and performing the duties now assigned to it
under the Trust Indenture Act, then the body performing such duties at such
time.

                 "Company" means the Person named as the "Company" in the first
paragraph of this instrument until a successor Person shall have become such
pursuant to the applicable provisions of this Indenture, and thereafter
"Company" shall mean such successor Person.

                 "Company Request" and "Company Order" mean, respectively, a
written request or order signed in the name of the Company by its Chairman of
the Board, its President or a Vice President, and by its Treasurer, an
Assistant Treasurer, its Controller, an Assistant Controller, its Secretary or
an Assistant Secretary, and delivered to the Trustee.

                 "Conversion Event" has the meaning specified in Section 501.

                 "Corporate Trust Office" means the principal office of the
Trustee in [                      ] at which at any particular time its
corporate trust business shall be principally administered, which office at the
date hereof is that indicated in the introductory paragraph of this Indenture.

                 "Defaulted Interest" has the meaning specified in Section 307.

                 "Depositary" means, with respect to the Securities of any
series issuable or issued in whole or in part in global form, the Person
designated as Depositary by the Company pursuant to Section 301 with respect to
the Securities of such series until a successor Depositary shall have become
such pursuant to the applicable provisions of this Indenture, and thereafter
"Depositary" shall mean or include each Person who is then a Depositary
hereunder, and if at any time there is more than one such Person, "Depositary"
as used with respect to the Securities of any series shall mean the Depositary
with respect to the Securities of that series.





                                       3
<PAGE>   12
                 "Designated Senior Indebtedness," unless otherwise provided
with respect to the Securities of a series as contemplated by Section 301,
means any Senior Indebtedness that (i) in the instrument evidencing the same or
the assumption or guarantee thereof (or related documents to which the Company
is a party) is expressly designated as "Designated Senior Indebtedness" for
purposes of this Indenture and (ii) satisfies such other conditions as may be
provided with respect to the Securities of such series; provided that such
instruments or documents may place limitations and conditions on the right of
such Senior Indebtedness to exercise the rights of Designated Senior
Indebtedness.

                 "Disqualified Capital Stock" means, when used with respect to
the Securities of any series, (a) except as set forth in (b), with respect to
any Person, Capital Stock of such Person that, by its terms or by the terms of
any security into which it is convertible, exercisable or exchangeable, is, or
upon the happening of an event or the passage of time would be, required to be
redeemed or repurchased (including at the option of the holder thereof) by such
Person or any Subsidiary of such Person, in whole or in part, on or prior to
the Stated Maturity of the Securities of such series, and (b) with respect to
any Subsidiary of such Person (including with respect to any Subsidiary of the
Company), any Capital Stock other than any common stock with no preference,
privileges, or redemption or repayment provisions.

                 "Dollar" or "$" means a dollar or other equivalent unit in
such coin or currency of the United States as at the time shall be legal tender
for the payment of public and private debts.

                 "Event of Default" has the meaning specified in Section 501.

                 "Exchange Rate" has the meaning specified in Section 501.

                 "Holder", when used with respect to any Security, means the
Person in whose name the Security is registered in the Security Register.

                 "Indebtedness" of any Person, unless otherwise provided with
respect to the Securities of a series as contemplated by Section 301, means,
without duplication, the following (whether currently outstanding or hereafter
incurred or created): (i) all liabilities and obligations, contingent or
otherwise, of any such Person (a) in respect of borrowed money (whether or not
the recourse of the lender is to the whole of the assets of such Person or only
to a portion thereof), (b) evidenced by bonds, notes, debentures or similar
instruments, (c) representing the balance deferred and unpaid of the purchase
price of any property or services, except such as would constitute trade
payables to trade creditors in the ordinary course of business that are not
more than 90 days past their original due date, (d) evidenced by bankers'
acceptances or similar instruments issued or accepted by banks, (e) for the
payment of money relating to a Capitalized Lease Obligation or (f) evidenced by
a letter of credit or a reimbursement obligation of such Person with respect to
any letter of credit; (ii) all net obligations of such Person under Interest
Swap and Hedging Obligations; (iii) all liabilities of others of the kind
described in the preceding clause (i) or (ii) that such Person has guaranteed
or that is otherwise its legal liability and all obligations to purchase,
redeem or acquire any Capital Stock; and (iv) any and all deferrals, renewals,
extensions, refinancings, refundings (whether direct or indirect) of, or
amendments, modifications or supplements to, any liability of the





                                       4
<PAGE>   13
kind described in any of the preceding clauses (i), (ii) or (iii), or this
clause (iv), whether or not between or among the same parties.

                 "Indenture" means this instrument as originally executed or as
it may from time to time be supplemented or amended by one or more indentures
supplemental hereto entered into pursuant to the applicable provisions hereof
and shall include the terms of particular series of Securities established as
contemplated by Section 301 and the provisions of the Trust Indenture Act that
are deemed to be a part of and govern this instrument.

                 "interest", when used with respect to an Original Issue
Discount Security which by its terms bears interest only after Maturity, means
interest payable after Maturity.

                 "Interest Payment Date", when used with respect to any
Security, means the Stated Maturity of an installment of interest on such
Security.

                 "Interest Swap and Hedging Obligation" means any obligation of
any Person pursuant to any interest rate swap agreement, interest rate cap
agreement, interest rate collar agreement, interest rate exchange agreement,
currency exchange agreement or any other agreement or arrangement designed to
protect against fluctuations in interest rates or currency values, including,
without limitation, any arrangement whereby, directly or indirectly, such
Person is entitled to receive from time to time periodic payments calculated by
applying either a fixed or floating rate of interest on a stated notional
amount in exchange for periodic payments made by such Person calculated by
applying a fixed or floating rate of interest on the same notional amount.

                 "Judgment Currency" has the meaning specified in Section 506.

                 "Junior security" of a Person means, when used with respect to
the Securities of any series, any Qualified Capital Stock of such Person or any
Indebtedness of such Person that is subordinated in right of payment to the
Securities of such series and has no scheduled installment of principal due, by
redemption, sinking fund payment or otherwise, on or prior to the Stated
Maturity of the Securities of such series.

                 "Maturity", when used with respect to any Security, means the
date on which the principal of such Security or an installment of principal
becomes due and payable as therein or herein provided, whether at the Stated
Maturity or by declaration of acceleration, call for redemption or otherwise.

                 "Officers' Certificate" means a certificate signed by the
Chairman of the Board, the President or a Vice President, and by the Treasurer,
the Controller, the Secretary or an Assistant Treasurer, Assistant Controller
or Assistant Secretary, of the Company, and delivered to the Trustee, which
certificate shall comply with Section 103 hereof.

                 "Opinion of Counsel" means a written opinion of counsel, who
may be counsel for or an employee of the Company, rendered, if applicable, in
accordance with Section 314(c) of the Trust Indenture Act, which opinion shall
comply with Section 103 hereof.





                                       5
<PAGE>   14
                 "Original Issue Discount Security" means any Security which
provides for an amount less than the principal amount thereof to be due and
payable upon a declaration of acceleration of the Maturity thereof pursuant to
Section 502.

                 "Outstanding", when used with respect to Securities of a
series, means, as of the date of determination, all Securities of such series
theretofore authenticated and delivered under this Indenture, except:

                 (i)      Securities theretofore cancelled by the Trustee or
         delivered to the Trustee for cancellation;

                 (ii)     Securities for whose payment or redemption money in
         the necessary amount has been theretofore irrevocably deposited with
         the Trustee or any Paying Agent (other than the Company) in trust or
         set aside and segregated in trust by the Company (if the Company shall
         act as its own Paying Agent) for the Holders of such Securities;
         provided that, if such Securities are to be redeemed, notice of such
         redemption has been duly given pursuant to this Indenture or provision
         therefor satisfactory to the Trustee has been made; and

                 (iii)    Securities which have been paid pursuant to Section
         306 or in exchange for or in lieu of which other Securities have been
         authenticated and delivered pursuant to this Indenture, other than any
         such Securities in respect of which there shall have been presented to
         the Trustee proof satisfactory to it that such Securities are held by
         a bona fide purchaser in whose hands such Securities are valid
         obligations of the Company;

provided, however, that in determining whether the Holders of the requisite
principal amount of the Outstanding Securities have given any request, demand,
authorization, direction, notice, consent or waiver hereunder, or whether a
quorum is present at a meeting of Holders of Securities, (a) the principal
amount of an Original Issue Discount Security that shall be deemed to be
Outstanding for such purposes shall be the principal amount thereof that would
be due and payable as of the date of such determination upon acceleration of
the Maturity thereof pursuant to Section 502, (b) the principal amount of a
Security denominated in a foreign currency shall be the U.S. dollar equivalent,
determined by the Company on the date of original issuance of such Security, of
the principal amount (or, in the case of an Original Issue Discount Security,
the U.S. dollar equivalent, determined on the date of original issuance of such
Security, of the amount determined as provided in (a) above), of such Security
and (c) Securities owned by the Company or any other obligor upon the
Securities or any Affiliate of the Company or of such other obligor shall be
disregarded and deemed not to be Outstanding, except that, in determining
whether the Trustee shall be protected in relying upon any such request,
demand, authorization, direction, notice, consent or waiver or upon any such
determination as to the presence of a quorum, only Securities which the Trustee
knows to be so owned shall be so disregarded.  Securities so owned which have
been pledged in good faith may be regarded as Outstanding if the pledgee
establishes to the satisfaction of the Trustee the pledgee's right so to act
with respect to such Securities and that the pledgee is not the Company or any
other obligor upon the Securities or any Affiliate of the Company or of such
other obligor.





                                       6
<PAGE>   15
                 "Paying Agent" means any Person, which may include the
Company, authorized by the Company to pay the principal of (and premium, if
any) or interest on or Additional Amounts with respect to any one or more
series of Securities on behalf of the Company.

                 "Payment Default" has the meaning specified in Section
1302(a).

                 "Payment Notice" has the meaning specified in Section 1302(b).

                 "Person" means any individual, corporation, partnership,
limited liability company, joint venture, association, joint-stock company,
trust, unincorporated organization or government or any agency or political
subdivision thereof or any other entity of any kind.

                 "Place of Payment", when used with respect to the Securities
of any series, means the place or places where the principal of (and premium,
if any) and interest on and any Additional Amounts with respect to the
Securities of that series are payable as specified in accordance with Section
301 subject to the provisions of Section 1002.

                 "Predecessor Security" of any particular Security means every
previous Security evidencing all or a portion of the same debt as that
evidenced by such particular Security; and, for the purposes of this
definition, any Security authenticated and delivered under Section 306 in
exchange for or in lieu of a mutilated, destroyed, lost or stolen Security
shall be deemed to evidence the same debt as the mutilated, destroyed, lost or
stolen Security.

                 "Qualified Capital Stock" means any Capital Stock of the
Company that is not Disqualified Capital Stock.

                 "Redemption Date", when used with respect to any Security to
be redeemed, means the date fixed for such redemption by or pursuant to the
terms of such Security and this Indenture.

                 "Redemption Price", when used with respect to any Security to
be redeemed, means the price at which it is to be redeemed pursuant to the
terms of such Security and this Indenture.

                 "Regular Record Date" for the interest payable on any Interest
Payment Date on the Securities of any series means the date specified for that
purpose as contemplated by Section 301, or, if not so specified, the last day
of the calendar month preceding such Interest Payment Date if such Interest
Payment Date is the fifteenth day of the calendar month or the fifteenth day of
the calendar month preceding such Interest Payment Date if such Interest
Payment Date is the first day of a calendar month, whether or not such day
shall be a Business Day.

                 "Required Currency" has the meaning specified in Section 506.

                 "Responsible Officer", when used with respect to the Trustee,
means the Chairman or any Vice Chairman of the Board of Directors, the Chairman
or any Vice Chairman of the Executive Committee of the Board of Directors, the
Chairman of the Trust Committee, the President, any Vice President, the
Secretary, any Assistant Secretary, the Treasurer, any Assistant Treasurer,





                                       7
<PAGE>   16
the Cashier, any Assistant Cashier, any Trust Officer or Assistant Trust
Officer, the Controller or any Assistant Controller or any other officer of the
Trustee customarily performing functions similar to those performed by any of
the above designated officers and also means, with respect to a particular
corporate trust matter, any other officer to whom such matter is referred
because of his knowledge of and familiarity with the particular subject.

                 "Securities" has the meaning stated in the first recital of
this Indenture and more particularly means any Securities authenticated and
delivered under this Indenture.

                 "Security Custodian" means, with respect to Securities of a
series issued in global form, the Trustee for Securities of such series, acting
in its capacity as custodian with respect to the Securities of such series, or
any successor entity thereto.

                 "Security Register" and "Security Registrar" have the
respective meanings specified in Section 305.

                 "Senior Indebtedness" of the Company, unless otherwise
provided with respect to the Securities of a series as contemplated by Section
301, means (i) all Indebtedness of the Company, whether currently outstanding
or hereafter issued, unless, by the terms of the instrument creating or
evidencing such Indebtedness, it is provided that such Indebtedness is not
superior in right of payment to the Securities or to other Indebtedness which
is pari passu with or subordinated to the Securities, and (ii) any
modifications, refunding, deferrals, renewals or extensions of any such
Indebtedness or securities, notes or other evidences of Indebtedness issued in
exchange for such Indebtedness; provided that in no event shall "Senior
Indebtedness" include (a) Indebtedness of the Company owed or owing to any
Subsidiary of the Company or any officer, director or employee of the Company
or any Subsidiary of the Company, (b) Indebtedness to trade creditors or (c)
any liability for taxes owed or owing by the Company.

                 "Special Record Date" for the payment of any Defaulted
Interest on the Securities of any series means a date fixed by the Trustee
pursuant to Section 307.

                 "Stated Maturity", when used with respect to any Security or
any installment of principal thereof or interest thereon, means the date
specified in such Security as the fixed date on which the principal of such
Security or such installment of principal or interest is due and payable.

                 "Subsidiary" means a corporation more than 50% of the
outstanding voting stock of which is owned, directly or indirectly, by the
Company or by one or more other Subsidiaries, or by the Company and one or more
other Subsidiaries.  For the purposes of this definition, "voting stock" means
stock which ordinarily has voting power for the election of directors, whether
at all times or only so long as no senior class of stock has such voting power
by reason of any contingency.

                 "Trustee" means the Person named as the "Trustee" in the first
paragraph of this instrument until a successor Trustee shall have become such
pursuant to the applicable provisions of this Indenture, and thereafter
"Trustee" shall mean or include each Person who is then a Trustee





                                       8
<PAGE>   17
hereunder, and if at any time there is more than one such Person, "Trustee" as
used with respect to the Securities of any series shall mean the Trustee with
respect to Securities of that series.

                 "Trust Indenture Act" means the Trust Indenture Act of 1939 as
in force at the date as of which this instrument was executed, except as
provided in Section 905.

                 "United States" means the United States of America (including
the States and the District of Columbia) and its "possessions", which include
Puerto Rico, the U.S. Virgin Islands, Guam, American Samoa, Wake Island and the
Northern Mariana Islands.

                 "United States Alien" means any Person who, for United States
federal income tax purposes, is a foreign corporation, a non-resident alien
individual, a non-resident alien or foreign fiduciary of an estate or trust, or
a foreign partnership.

                 "U.S. Government Obligations" has the meaning specified in
Section 401.

                 "Vice President", when used with respect to the Company or the
Trustee, means any vice president, whether or not designated by a number or a
word or words added before or after the title "vice president".

                 "Wholly Owned Subsidiary" means a corporation all the
outstanding voting stock (other than any directors' qualifying shares) of which
is owned, directly or indirectly, by the Company or by one or more other Wholly
Owned Subsidiaries, or by the Company and one or more other Wholly Owned
Subsidiaries.  For the purposes of this definition, "voting stock" means stock
which ordinarily has voting power for the election of directors, whether at all
times or only so long as no senior class of stock has such voting power by
reason of any contingency.

                 "Yield to Maturity", when used with respect to any Original
Issue Discount Security, means the yield to maturity, if any, set forth on the
face thereof.

SECTION 102.  Incorporation by Reference of Trust Indenture Act.

                 Whenever this Indenture refers to a provision of the Trust
Indenture Act, the provision is incorporated by reference in and made a part of
this Indenture.  The following Trust Indenture Act terms used in this Indenture
have the following meanings:

                 "Bankruptcy Act" means the Bankruptcy Act or Title 11 of the
United States Code.

                 "indenture securities" means the Securities.

                 "indenture security holder" means a Holder.

                 "indenture to be qualified" means this Indenture.

                 "indenture trustee" or "institutional trustee" means the
Trustee.





                                       9
<PAGE>   18
                 "obligor" on the indenture securities means the Company or any
other obligor on the Securities.

                 All terms used in this Indenture that are defined by the Trust
Indenture Act, defined by Trust Indenture Act reference to another statute or
defined by Commission rule under the Trust Indenture Act and not otherwise
defined herein have the meanings assigned to them therein.

SECTION 103.  Compliance Certificates and Opinions.

                 Except as otherwise expressly provided by this Indenture, upon
any application or request by the Company to the Trustee to take any action
under any provision of this Indenture, the Company shall furnish to the Trustee
an Officers' Certificate stating that all conditions precedent, if any
(including any covenants the compliance with which constitutes a condition
precedent, provided for in this Indenture relating to the proposed action have
been complied with and an Opinion of Counsel stating that in the opinion of
such counsel all such conditions precedent, if any (including any covenants the
compliance with which constitutes a condition precedent) have been complied
with, except that in the case of any such application or request as to which
the furnishing of such documents is specifically required by any provision of
this Indenture relating to such particular application or request, no
additional certificate or opinion need be furnished.

                 Every certificate or opinion with respect to compliance with a
condition or covenant provided for in this Indenture shall include

                 (1)      a statement that each Person signing such certificate
         or opinion has read such covenant or condition and the definitions
         herein relating thereto;

                 (2)      a brief statement as to the nature and scope of the
         examination or investigation upon which the statements or opinions
         contained in such certificate or opinion are based;

                 (3)      a statement that, in the opinion of each such Person,
         such Person has made such examination or investigation as is necessary
         to enable such Person to express an informed opinion as to whether or
         not such covenant or condition has been complied with; and

                 (4)      a statement as to whether, in the opinion of each
         such Person, such condition or covenant has been complied with.

SECTION 104.  Form of Documents Delivered to Trustee.

                 In any case where several matters are required to be certified
by, or covered by an opinion of, any specified Person, it is not necessary that
all such matters be certified by, or covered by the opinion of, only one such
Person, or that they be so certified or covered by only one document, but one
such Person may certify or give an opinion with respect to some matters and one





                                       10
<PAGE>   19
or more other such Persons as to other matters, and any such Person may certify
or give an opinion as to such matters in one or several documents.

                 Any certificate or opinion of an officer of the Company may be
based, insofar as it relates to legal matters, upon a certificate or opinion
of, or representations by, counsel, unless such officer knows, or in the
exercise of reasonable care should know, that the certificate or opinion or
representations with respect to the matters upon which his certificate or
opinion is based are erroneous.  Any such certificate or Opinion of Counsel may
be based, insofar as it relates to factual matters, upon a certificate or
opinion of, or representations by, an officer or officers of the Company
stating that the information with respect to such factual matters is in the
possession of the Company, unless such counsel knows, or in the exercise of
reasonable care should know, that the certificate or opinion or representations
with respect to such matters are erroneous.

                 Where any Person is required to make, give or execute two or
more applications, requests, consents, certificates, statements, opinions or
other instruments under this Indenture, they may, but need not, be consolidated
and form one instrument.

SECTION 105.  Acts of Holders; Record Dates.

                 (a)      Any request, demand, authorization, direction, notice,
consent, waiver or other action provided by this Indenture to be given or taken
by Holders may be embodied in and evidenced by one or more instruments of
substantially similar tenor signed by such Holders in person or by an agent
duly appointed in writing.  Except as herein otherwise expressly provided, such
action shall become effective when such instrument or instruments or record
thereof or both are delivered to the Trustee and, where it is hereby expressly
required, to the Company.  Such instrument or instruments and any such record
(and the action embodied therein and evidenced thereby) are herein sometimes
referred to as the "Act" of the Holders signing such instrument or instruments
and so voting at any such meeting.  Proof of execution of any such instrument
or of a writing appointing any such agent, or the holding of any Person of a
Security, shall be sufficient for any purpose of this Indenture and (subject to
Section 601) conclusive in favor of the Trustee and the Company, if made in the
manner provided in this Section.  The record of any meeting of Holders of
Securities shall be proved in the manner provided in Section 1406.

                 The Company may set in advance a record date for purposes of
determining the identity of Holders of Securities entitled to vote or consent
to any action by vote or consent authorized or permitted under this Indenture.
If a record date is fixed, those Persons who were Holders of Outstanding
Securities at such record date (or their duly designated proxies), and only
those Persons, shall be entitled with respect to such Securities to take such
action by vote or consent or to revoke any vote or consent previously given,
whether or not such Persons continue to be Holders after such record date.
Promptly after any record date is set pursuant to this paragraph, the Company,
at its own expense, shall cause notice thereof to be given to the Trustee in
writing in the manner provided in Section 106 and to the relevant Holders as
set forth in Section 107.

                 (b)      The fact and date of the execution by any Person of
any such instrument or writing may be proved by the affidavit of a witness of
such execution or by a certificate of a notary





                                       11
<PAGE>   20
public or other officer authorized by law to take acknowledgments of deeds,
certifying that the individual signing such instrument or writing acknowledged
to him the execution thereof.  Where such execution is by a signer acting in a
capacity other than his individual capacity, such certificate or affidavit
shall also constitute sufficient proof of his authority.  The fact and date of
the execution of any such instrument or writing, or the authority of the Person
executing the same, may also be proved in any other manner which the Trustee
deems sufficient.

                 (c)      The principal amount and serial numbers of Securities
held by any Person, and the date of holding the same, shall be proved by the
Security Register.

                 (d)      Any request, demand, authorization, direction,
notice, consent, waiver or other Act of the Holder of any Security shall bind
every future Holder of the same Security and the Holder of every Security
issued upon the registration of transfer thereof or in exchange therefor or in
lieu thereof in respect of anything done, omitted or suffered to be done by the
Trustee or the Company in reliance thereon, whether or not notation of such
action is made upon such Security.  Any Holder or subsequent Holder may revoke
the request, demand, authorization, direction, notice, consent or other Act as
to his Security or portion of his Security; provided, however, that such
revocation shall be effective only if the Trustee receives the notice of
revocation before the date the Act becomes effective.

SECTION 106.  Notices, Etc., to Trustee and Company.

                 Any request, demand, authorization, direction, notice,
consent, waiver or Act of Holders or other document provided or permitted by
this Indenture to be made upon, given or furnished to, or filed with,

                 (1)      the Trustee by any Holder or by the Company shall be
         sufficient for every purpose hereunder if made, given, furnished or
         filed in writing to or with the Trustee at its Corporate Trust Office,
         Attention: Corporate Trust Administration, or

                 (2)      the Company by the Trustee or by any Holder shall be
         sufficient for every purpose hereunder (unless otherwise herein
         expressly provided) if in writing and mailed, first-class postage
         prepaid, to the Company addressed to it at the address of its
         principal office specified in the first paragraph of this Indenture or
         at any other address previously furnished in writing to the Trustee by
         the Company, Attention: Corporate Secretary.

SECTION 107.  Notice to Holders; Waiver.

                 Where this Indenture provides for notice to Holders of
Securities of any event, such notice shall be sufficiently given (unless
otherwise herein expressly provided) if in writing and mailed, first-class
postage prepaid, to each Holder affected by such event, at the address of such
Holder as it appears in the Security Register, not later than the latest date,
and not earlier than the earliest date, prescribed for the giving of such
notice.





                                       12
<PAGE>   21
                 In case by reason of the suspension of regular mail service,
or by reason of any other cause it shall be impracticable to give such notice
to Holders of Securities by mail, then such notification as shall be made with
the approval of the Trustee shall constitute a sufficient notification for
every purpose hereunder.  In any case in which notice to Holders of Securities
is given by mail, neither the failure to mail such notice, nor any defect in
any notice so mailed, to any particular Holder of a Security, shall affect the
sufficiency of such notice with respect to other Holders of Securities.

                 Where this Indenture provides for notice in any manner, such
notice may be waived in writing by the Person entitled to receive such notice,
either before or after the event, and such waiver shall be the equivalent of
such notice.  Waivers of notice by Holders shall be filed with the Trustee, but
such filing shall not be a condition precedent to the validity of any action
taken in reliance upon such waiver.

SECTION 108.  Conflict With Trust Indenture Act.

                 If any provision hereof limits, qualifies or conflicts with
any provision of the Trust Indenture Act or another provision hereof which is
required to be included in this Indenture by any of the provisions of the Trust
Indenture Act, such provision of the Trust Indenture Act shall control.  If any
provision of this Indenture modifies or excludes any provision of the Trust
Indenture Act which may be so modified or excluded, the former provision shall
be deemed to apply to this Indenture as so modified or to be excluded.

SECTION 109.  Effect of Headings and Table of Contents.

                 The Article and Section headings herein and the Table of
Contents are for convenience only and shall not affect the construction hereof.

SECTION 110.   Successors and Assigns.

                 All covenants and agreements in this Indenture by the Company
shall bind its successors and assigns, whether so expressed or not.

SECTION 111.  Separability Clause.

                 In case any provision in this Indenture or in the Securities
shall be invalid, illegal or unenforceable, the validity, legality and
enforceability of the remaining provisions shall not in any way be affected or
impaired thereby.

SECTION 112.  Benefits of Indenture.

                 Nothing in this Indenture or in the Securities, express or
implied, shall give to any Person, other than the parties hereto and their
successors hereunder, any Authenticating Agent, Paying Agent and Security
Registrar, and the Holders and holders of any Senior Indebtedness, any benefit
or any legal or equitable right, remedy or claim under this Indenture.





                                       13
<PAGE>   22
SECTION 113.  Governing Law.

                 This Indenture and the Securities shall be governed by and
construed in accordance with the laws of the State of New York, but without
giving effect to applicable principles of conflicts of law to the extent the
application of the laws of another jurisdiction would be required thereby.

SECTION 114.  Legal Holidays.

                 In any case where any Interest Payment Date, Redemption Date
or Stated Maturity of any Security shall not be a Business Day at any Place of
Payment, then (notwithstanding any other provision of this Indenture or of the
Securities) payment of principal and interest (and premium and Additional
Amounts, if any) need not be made at such Place of Payment on such date, but
may be made on the next succeeding Business Day at such Place of Payment with
the same force and effect as if made on the Interest Payment Date or Redemption
Date, or at the Stated Maturity, provided that no interest shall accrue with
respect to such payment for the period from and after such Interest Payment
Date, Redemption Date or Stated Maturity, as the case may be.

SECTION 115.  Corporate Obligation.

                 No recourse may be taken, directly or indirectly, against any
incorporator, subscriber to the capital stock, stockholder, officer, director
or employee of the Company or the Trustee or of any predecessor or successor of
the Company or the Trustee with respect to the Company's obligations on the
Securities or the obligations of the Company or the Trustee under this
Indenture or any certificate or other writing delivered in connection herewith.


                                  ARTICLE TWO

                                 SECURITY FORMS

SECTION 201.  Forms Generally.

                 The Securities of each series shall be in fully registered
form and in substantially such form or forms (including temporary or permanent
global form) as shall be established by or pursuant to a Board Resolution or in
one or more indentures supplemental hereto, in each case with such appropriate
insertions, omissions, substitutions and other variations as are required or
permitted by this Indenture and may have such letters, numbers or other marks
of identification and such legends or endorsements placed thereon as may be
required to comply with the rules of any securities exchange or as may,
consistently herewith, be determined by the officers executing such Securities,
as evidenced by their execution of the Securities.  If temporary Securities of
any series are issued in global form as permitted by Section 304, the form
thereof shall be established as provided in the preceding sentence.  A copy of
the Board Resolution establishing the form or forms of Securities of any series
(or any such temporary global Security) shall be certified by the Secretary or
an Assistant Secretary of the Company and delivered to the Trustee at or prior
to the delivery of the Company





                                       14
<PAGE>   23
Order contemplated by Section 303 for the authentication and delivery of such
Securities (or any such temporary global Security).

                 The definitive Securities shall be printed, lithographed or
engraved on steel engraved borders or may be produced in any other manner, all
as determined by the officers executing such Securities, as evidenced by their
execution thereof.

SECTION 202.  Form of Trustee's Certificate of Authentication.

                 The Trustee's certificate of authentication shall be in
substantially the following form:

                 "This is one of the Securities of the series designated
therein referred to in the within-mentioned Indenture.

                                       [                                      ],
                                        --------------------------------------
                                             as Trustee

                                       By
                                          --------------------------------------
                                                   Authorized Signatory".

SECTION 203.  Securities in Global Form.

                 If Securities of a series are issuable in global form, as
contemplated by Section 301, then, notwithstanding clause (10) of Section 301
and the provisions of Section 302, any such Security shall represent such of
the Outstanding Securities of such series as shall be specified therein and may
provide that it shall represent the aggregate amount of Outstanding Securities
from time to time endorsed thereon and that the aggregate amount of Outstanding
Securities represented thereby may from time to time be reduced to reflect
exchanges.  Any endorsement of a Security in global form to reflect the amount,
or any increase or decrease in the amount, of Outstanding Securities
represented thereby shall be made by the Trustee in such manner and upon
instructions given by such Person or Persons as shall be specified in such
Security or in a Company Order to be delivered to the Trustee pursuant to
Section 303 or Section 304.  Subject to the provisions of Section 303 and, if
applicable, Section 304, the Trustee shall deliver and redeliver any Security
in permanent global form in the manner and upon instructions given by the
Person or Persons specified in such Security or in the applicable Company
Order.  With respect to the Securities of any series that are represented by a
Security in global form, the Company authorizes the execution and delivery by
the Trustee of a letter of representations or other similar agreement or
instrument in the form customarily provided for by the Depositary appointed
with respect to such global Security.  Any Security in global form may be
deposited with the Depositary or its nominee, or may remain in the custody of
the Security Custodian therefor pursuant to a FAST Balance Certificate
Agreement or similar agreement between the Trustee and the Depositary.  If a
Company Order pursuant to Section 303 or 304 has been, or simultaneously is,
delivered, any instructions by the Company with respect to endorsement or
delivery or redelivery of a Security in global form shall be in writing but
need not comply with Section 103 and need not be accompanied by an Opinion of
Counsel.





                                       15
<PAGE>   24
                 Members of, or participants in, the Depositary ("Agent
Members") shall have no rights under this Indenture with respect to any
Security issued in global form held on their behalf by the Depositary, or the
Security Custodian as its custodian, or under such global Security, and the
Depositary may be treated by the Company, the Security Custodian and any agent
of the Company or the Trustee as the absolute owner of such global Security for
all purposes whatsoever.  Notwithstanding the foregoing, (i) the registered
holder of a Security of any series issued in global form may grant proxies and
otherwise authorize any Person, including Agent Members and Persons that may
hold interests through Agent Members, to take any action that a Holder of such
series is entitled to take under this Indenture or the Securities of such
series and (ii) nothing herein shall prevent the Company, the Security
Custodian or any agent of the Company or the Security Custodian, from giving
effect to any written certification, proxy or other authorization furnished by
the Depositary or shall impair, as between the Depositary and its Agent
Members, the operation of customary practices governing the exercise of the
rights of a beneficial owner of any Security.

                 Notwithstanding Section 305, except as otherwise specified as
contemplated by Section 301, any permanent global Security shall be
exchangeable only as provided in this paragraph.  If the beneficial owners of
interests in a permanent global Security are entitled to exchange such interest
for Securities of such series and of like tenor and principal amount of another
authorized form and denomination, as specified as contemplated by Section 301,
then without unnecessary delay but in any event not later than the earliest
date on which such interests may be so exchanged, the Company shall deliver to
the Trustee definitive Securities of that series in an aggregate principal
amount equal to the principal amount of such permanent global Security,
executed by the Company.  On or after the earliest date on which such interests
may be so exchanged, such permanent global Security shall be surrendered from
time to time in accordance with instructions given to the Trustee and the
Depositary (which instructions shall be in writing but need not comply with
Section 103 or be accompanied by an Opinion of Counsel) by the Depositary or
such other depositary as shall be specified in the Company Order with respect
thereto to the Trustee, as the Company's agent for such purpose, to be
exchanged, in whole or in part, for definitive Securities of the same series
without charge and the Trustee shall authenticate and deliver, in exchange for
each portion of such permanent global Security, a like aggregate principal
amount of other definitive Securities of the same series of authorized
denominations and of like tenor as the portion of such permanent global
Security to be exchanged; provided, however, that no such exchanges may occur
during a period beginning at the opening of business 15 days before any
selection of Securities of that series is to be redeemed and ending on the
relevant Redemption Date.  Promptly following any such exchange in part, such
permanent global Security marked to evidence the partial exchange shall be
returned by the Trustee to the Depositary or such other depositary referred to
above in accordance with the instructions of the Company referred to above.  If
a definitive Security is issued in exchange for any portion of a permanent
global Security after the close of business at the office or agency where such
exchange occurs on (i) any Regular Record Date and before the opening of
business at such office or agency on the relevant Interest Payment Date, or
(ii) any Special Record Date and before the opening of business at such office
or agency on the related proposed date for payment of Defaulted Interest,
interest or Defaulted Interest, as the case may be, will not be payable on such
Interest Payment Date or proposed date for payment, as the case may be, in
respect of such Security, but will be payable on such Interest Payment Date or
proposed





                                       16
<PAGE>   25
for payment, as the case may be, only to the Person to whom interest in respect
of such portion of such permanent global Security is payable in accordance with
the provisions of this Indenture.

                 Notwithstanding Section 305, except as otherwise specified as
contemplated by Section 301, transfers of a Security issued in global form
shall be limited to transfers of such global Security in whole, but not in
part, to the Depositary, its successors or their respective nominees.
Interests of beneficial owners in a Security issued in global form may be
transferred in accordance with the rules and procedures of the Depositary.
Securities of any series shall be transferred to all beneficial owners of a
global Security of such series in exchange for their beneficial interests in
that global Security if, and only if, either (1) the Depositary notifies the
Company that it is unwilling or unable to continue as Depositary for the global
Security of such series and a successor Depositary is not appointed by the
Company within 90 days of such notice, (2) an Event of Default has occurred
with respect to such series and is continuing and the Security Registrar has
received a request from the Depositary or the Trustee to issue Securities of
such series in lieu of all or a portion of that global Security (in which case
the Company shall deliver Securities of such series within 30 days of such
request) or (3) the Company determines not to have the Securities of such
series represented by a global Security.

                 In connection with any transfer of a portion of the beneficial
interest in a global Security of any series to beneficial owners pursuant to
this Section 203, the Security Registrar shall reflect on its books and records
the date and a decrease in the principal amount of the global Security of that
series in an amount equal to the principal amount of the beneficial interest in
the global Security of that series to be transferred, and the Company shall
execute, and the Trustee upon receipt of a Company Order for the authentication
and delivery of Securities of that series shall authenticate and deliver, one
or more Securities of the same series of like tenor and amount.

                 In connection with the transfer of all the beneficial
interests in a global Security of any series to beneficial owners pursuant to
this Section 203, the global Security shall be deemed to be surrendered to the
Trustee for cancellation, and the Company shall execute, and the Trustee shall
authenticate and deliver, to each beneficial owner identified by the Depositary
in exchange for its beneficial interest in the global Security, an equal
aggregate principal amount of Securities of that series of authorized
denominations.

                 Neither the Company nor the Trustee will have any
responsibility or liability for any aspect of the records relating to, or
payments made on account of, Securities of any series by the Depositary, or for
maintaining, supervising or reviewing any records of the Depositary relating to
such Securities.  Neither the Company nor the Trustee shall be liable for any
delay by the related global Security Holder or the Depositary in identifying
the beneficial owners, and each such Person may conclusively rely on, and shall
be protected in relying on, instructions from such global Security Holder or
the Depositary for all purposes (including with respect to the registration and
delivery, and the respective principal amounts, of the Securities to be
issued).

                 The provisions of the last sentence of Section 303 shall apply
to any Security in global form if such Security was never issued and sold by
the Company and the Company delivers to the Trustee the Security in global form
together with written instructions (which need not comply





                                       17
<PAGE>   26
with Section 103 and need not be accompanied by an Opinion of Counsel) with
regard to the reduction in the principal amount of Securities represented
thereby, together with the written statement contemplated by the last sentence
of Section 303.

                 Notwithstanding the provisions of Sections 201 and 307, unless
otherwise specified as contemplated by Section 301, payment of principal of
(and premium, if any) and interest on and any Additional Amounts with respect
to any Security in permanent global form shall be made to the Person or Persons
specified therein.

                 Notwithstanding the provisions of Section 308 and except as
provided in the preceding paragraph, the Company, the Trustee and any agent of
the Company or of the Trustee shall treat a Person as the Holder of such
principal amount of Outstanding Securities represented by a global Security as
shall be specified in a written statement, if any, of the Holder of such global
Security, which is produced to the Security Registrar by such Holder.

                 Global Securities may be issued in either temporary or
permanent form.  Permanent global Securities will be issued in definitive form.


                                 ARTICLE THREE

                                 THE SECURITIES

SECTION 301.  Amount Unlimited; Issuable in Series.

                 The aggregate principal amount of Securities which may be
authenticated and delivered under this Indenture is unlimited.

                 The Securities may be issued in one or more series.  There
shall be established in or pursuant to a Board Resolution, and set forth in an
Officers' Certificate, or established in one or more indentures supplemental
hereto, prior to the issuance of Securities of any series,

                 (1)      the title of the Securities of the series (which
         shall distinguish the Securities of the series from all other
         Securities);

                 (2)      any limit upon the aggregate principal amount of the
         Securities of the series which may be authenticated and delivered
         under this Indenture (except for Securities authenticated and
         delivered upon registration of transfer of, or in exchange for, or in
         lieu of, other Securities of the series pursuant to Section 304, 305,
         306, 906 or 1107);

                 (3)      whether any Securities of the series are to be
         issuable initially in temporary global form and whether any Securities
         of the series are to be issuable in permanent global form, and, if so,
         whether beneficial owners of interests in any such global Security may
         exchange such interests for Securities of such series and of like
         tenor of any authorized form and denomination and the circumstances
         under which any such exchanges may occur, if





                                       18
<PAGE>   27
         other than in the manner provided in Section 203, and the Depositary
         for any global Security or Securities of such series;

                 (4)      the manner in which any interest payable on a
         temporary global Security on any Interest Payment Date will be paid if
         other than in the manner provided in Section 304;

                 (5)      the date or dates on which the principal of (and
         premium, if any, on) the Securities of the series is payable or the
         method of determination thereof,

                 (6)      the rate or rates, or the method of determination
         thereof, at which the Securities of the series shall bear interest, if
         any, whether and under what circumstances Additional Amounts with
         respect to such Securities shall be payable, the date or dates from
         which such interest shall accrue, the Interest Payment Dates on which
         such interest shall be payable and, if other than as set forth in
         Section 101, the Regular Record Date for the interest payable on any
         Securities on any Interest Payment Date;

                 (7)      the place or places where, subject to the provisions
         of Section 1002, the principal of (and premium, if any), any interest
         on and any Additional Amounts with respect to the Securities of the
         series shall be payable;

                 (8)      the period or periods within which, the price or
         prices (whether denominated in cash, securities or otherwise) at which
         and the terms and conditions upon which Securities of the series may
         be redeemed, in whole or in part, at the option of the Company, if the
         Company is to have that option, and the manner in which the Company
         must exercise any such option, if different from those set forth
         herein;

                 (9)      the obligation, if any, of the Company to redeem or
         purchase Securities of the series pursuant to any sinking fund or
         analogous provisions or at the option of a Holder thereof and the
         period or periods within which, the price or prices (whether
         denominated in cash, securities or otherwise) at which and the terms
         and conditions upon which Securities of the series shall be redeemed
         or purchased in whole or in part pursuant to such obligation;

                 (10)     the denomination in which any Securities of that
         series shall be issuable, if other than denominations of $1,000 and
         any integral multiple thereof;

                 (11)     the currency or currencies (including composite
         currencies) if other than Dollars, or the form, including equity
         securities, other debt securities (including Securities), warrants or
         any other securities or property of the Company or any other Person,
         in which payment of the principal of (and premium, if any), any
         interest on and any Additional Amounts with respect to the Securities
         of the series shall be payable;

                 (12)     if the principal of (and premium, if any) or interest
         on or any Additional Amounts with respect to the Securities of the
         series are to be payable, at the election of the Company or a Holder
         thereof, in a currency or currencies (including composite currencies)
         other than that in which the Securities are stated to be payable, the
         currency or currencies





                                       19
<PAGE>   28
         (including composite currencies) in which payment of the principal of
         (and premium, if any) and interest on, and any Additional Amounts with
         respect to, Securities of such series as to which such election is
         made shall be payable, and the periods within which and the terms and
         conditions upon which such election is to be made;

                 (13)     if the amount of payments of principal of (and
         premium, if any), any interest on and any Additional Amounts with
         respect to the Securities of the series may be determined with
         reference to any commodities, currencies or indices, values, rates or
         prices or any other index or formula, the manner in which such amounts
         shall be determined;

                 (14)     if other than the entire principal amount thereof,
         the portion of the principal amount of Securities of the series which
         shall be payable upon declaration of acceleration of the Maturity
         thereof pursuant to Section 502;

                 (15)     any additional means of satisfaction and discharge of
         this Indenture with respect to Securities of the series pursuant to
         Section 401, any additional conditions to discharge pursuant to
         Section 401 or 403 and the application, if any, of Section 403;

                 (16)     any deletions or modifications of or additions to the
         definitions set forth in Section 101, the Events of Default set forth
         in Section 501 or covenants of the Company set forth in Article Ten
         pertaining to the Securities of the series;

                 (17)     if the Securities of the series are to be convertible
         into or exchangeable for equity securities, other debt securities
         (including Securities), warrants or any other securities or property
         of the Company or any other Person, at the option of the Company or
         the Holder or upon the occurrence of any condition or event, the terms
         and conditions for such conversion or exchange; and

                 (18)     any other terms of the series (which terms shall not
         be inconsistent with the provisions of this Indenture).

                 All Securities of any one series shall be substantially
identical except as to denomination and except as may otherwise be provided in
or pursuant to the Board Resolution referred to above and (subject to Section
303) set forth, or determined in the manner provided, in the Officers'
Certificate referred to above or in any such indenture supplemental hereto.

                 At the option of the Company, interest on the Securities of
any series that bears interest may be paid by mailing a check to the address of
any Holder as such address shall appear in the Security Register.

                 If any of the terms of the series are established by action
taken pursuant to a Board Resolution, a copy of an appropriate record of such
action together with such Board Resolution shall be certified by the Secretary
or an Assistant Secretary of the Company and delivered to the Trustee at or
prior to the delivery of the Officers' Certificate setting forth the terms of
the series.





                                       20
<PAGE>   29
                 The Securities shall be subordinated in right of payment to
Senior Indebtedness as provided in Article Thirteen.

SECTION 302.  Denominations.

                 The Securities of each series shall be issuable in such
denominations as shall be specified as contemplated by Section 301.  In the
absence of any such provisions with respect to the Securities of any series,
the Securities of such series denominated in Dollars shall be issuable in
denominations of $1,000 and any integral multiple thereof.  Unless otherwise
provided as contemplated by Section 301 with respect to any series of
Securities, any Securities of a series denominated in a currency other than
Dollars shall be issuable in denominations that are the equivalent, as
determined by the Company by reference to the noon buying rate in The City of
New York for cable transfers for such currency, as such rate is reported or
otherwise made available by the Federal Reserve Bank of New York, on the
applicable issue date for such Securities, of $1,000 and any integral multiple
thereof.

SECTION 303.  Execution, Authentication Delivery and Dating.

                 The Securities shall be executed on behalf of the Company by
its Chairman of the Board, its President, its Treasurer or one of its Vice
Presidents, under its corporate seal reproduced thereon or affixed thereto
attested by its Secretary or one of its Assistant Secretaries.  The signature
of any of these officers on the Securities may be manual or facsimile.

                 Securities bearing the manual or facsimile signatures of
individuals who were at any time the proper officers of the Company shall bind
the Company, notwithstanding that such individuals or any of them have ceased
to hold such offices prior to the authentication and delivery of such
Securities or did not hold such offices at the date of such Securities.

                 At any time and from time to time after the execution and
delivery of this Indenture, the Company may deliver Securities of any series
executed by the Company to the Trustee for authentication, together with a
Company Order for the authentication and delivery of such Securities, and the
Trustee in accordance with the Company Order shall authenticate and deliver
such Securities as in this Indenture provided and not otherwise.

                 If the form or terms of the Securities of the series have been
established in or pursuant to one or more Board Resolutions or any other method
permitted by Sections 201 and 301, in authenticating such Securities, and
accepting the additional responsibilities under this Indenture in relation to
such Securities, the Trustee shall be entitled to receive, and (subject to
Section 601) shall be fully protected in relying upon, an Opinion of Counsel
stating,

                 (a)      if the form of such Securities has been established
         by or pursuant to Board Resolution as permitted by Section 201, that
         such form has been established in conformity with the provisions of
         this Indenture;





                                       21
<PAGE>   30
                 (b)      if the terms of such Securities have been established
         by or pursuant to Board Resolution as permitted by Section 301, that
         such terms have been established in conformity with the provisions of
         this Indenture; and

                 (c)      that such Securities, when authenticated and
         delivered by the Trustee and issued by the Company in the manner and
         subject to any conditions specified in such Opinion of Counsel, will
         constitute legal, valid and binding obligations of the Company,
         enforceable in accordance with their terms, except as such enforcement
         is subject to the effect of (i) bankruptcy, insolvency, fraudulent
         conveyance, reorganization or other laws relating to or affecting
         creditors' rights and (ii) general principles of equity (regardless of
         whether such enforcement is considered in a proceeding in equity or at
         law).

If such form or terms have been so established, the Trustee shall not be
required to authenticate such Securities if the issue of such Securities
pursuant to this Indenture will affect the Trustee's own rights, duties or
immunities under the Securities and this Indenture or otherwise in a manner
which is not reasonably acceptable to the Trustee.

                 Each Security shall be dated the date of its authentication.

                 No Security shall be entitled to any benefit under this
Indenture or be valid or obligatory for any purpose unless there appears on
such Security, a certificate of authentication substantially in the form
provided for herein executed by the Trustee by manual signature, and such
certificate upon any Security shall be conclusive evidence, and the only
evidence, that such Security has been duly authenticated and delivered
hereunder.  Notwithstanding the foregoing, if any Security shall have been
authenticated and delivered hereunder but never issued and sold by the Company,
and the Company shall deliver such Security to the Trustee for cancellation as
provided in Section 309 together with a written statement (which need not
comply with Section 103 and need not be accompanied by an Opinion of Counsel)
stating that such Security has never been issued and sold by the Company, for
all purposes of this Indenture such Security shall be deemed never to have been
authenticated and delivered hereunder and shall never be entitled to the
benefits of this Indenture.

SECTION 304.  Temporary Securities.

                 Pending the preparation of definitive Securities of any
series, the Company may execute, and upon Company Order the Trustee shall
authenticate and deliver, temporary Securities which are printed, lithographed,
typewritten, mimeographed or otherwise produced, in any authorized
denomination, substantially of the tenor of the definitive Securities in lieu
of which they are issued, in registered form and with such appropriate
insertions, omissions, substitutions and other variations as the officers of
the Company executing such Securities may determine, as evidenced by their
execution of such Securities.

                 Except in the case of temporary Securities in global form
(which shall be exchanged in accordance with the provisions of the following
paragraphs), if temporary Securities of any series are issued, the Company will
cause definitive Securities of that series to be prepared without unreasonable
delay.  After the preparation of definitive Securities of such series, the
temporary





                                       22
<PAGE>   31
Securities of such series shall be exchangeable for definitive Securities of
such series upon surrender of the temporary Securities of such series at the
office or agency of the Company in a Place of Payment for that series, without
charge to the Holder.  Upon surrender for cancellation of any one or more
temporary Securities of any series, the Company shall execute and the Trustee
shall authenticate and deliver in exchange therefor a like principal amount of
definitive Securities of the same series of authorized denominations.  Until so
exchanged the temporary Securities of any series shall in all respects be
entitled to the same benefits under this Indenture as definitive Securities of
such series.

                 All Outstanding temporary Securities of any series shall in
all respects be entitled to the same benefits under this Indenture as
definitive Securities of the same series and of like tenor authenticated and
delivered hereunder.

SECTION 305.  Registration, Registration of Transfer and Exchange.

                 The Company shall cause to be kept for each series of
Securities at one of the offices or agencies maintained pursuant to Section
1002 a register (the register maintained in such office and in any other office
or agency of the Company in a Place of Payment being herein sometimes
collectively referred to as the "Security Register") in which, subject to such
reasonable regulations as it may prescribe, the Company shall provide for the
registration of Securities and of transfers of Securities of such series.  The
Trustee is hereby initially appointed "Security Registrar" for the purpose of
registering Securities and transfers of Securities as herein provided.

                 Except as set forth in Section 203 or as may be provided
pursuant to Section 301, upon surrender for registration of transfer of any
Security of any series at the office or agency in a Place of Payment for that
series, the Company shall execute, and the Trustee shall authenticate and
deliver, in the name of the designated transferee or transferees, one or more
new Securities of the same series and of like tenor, of any authorized
denominations and of a like aggregate principal amount.

                 At the option of the Holder, Securities of any series may be
exchanged for other Securities of the same series and of like tenor, of any
authorized denominations and of a like aggregate principal amount, upon
surrender of the Securities to be exchanged at such office or agency.  Whenever
any Securities are so surrendered for exchange, the Company shall execute, and
the Trustee shall authenticate and deliver, the Securities which the Holder
making the exchange is entitled to receive.

                 All Securities issued upon any registration of transfer or
exchange of Securities shall be the valid obligations of the Company,
evidencing the same debt, and entitled to the same benefits under this
Indenture, as the Securities surrendered upon such registration of transfer or
exchange.

                 Every Security presented or surrendered for registration of
transfer or for exchange shall (if so required by the Company or the Trustee)
be duly endorsed, or be accompanied by a written instrument of transfer in form
satisfactory to the Company and the Security Registrar duly executed, by the
Holder thereof or his attorney duly authorized in writing.





                                       23
<PAGE>   32
                 No service charge shall be made for any registration of
transfer or exchange of Securities, but the Company may require payment of a
sum sufficient to cover any tax or other governmental charge that may be
imposed in connection with any registration of transfer or exchange of
Securities, other than exchange pursuant to Section 304, 906 or 1107 not
involving any transfer.

                 The Company shall not be required (i) to issue, register the
transfer of or exchange Securities of any series during a period beginning at
the opening of business 15 days before the day of the mailing of a notice of
redemption of Securities of such series selected for redemption and ending at
the close of business on the day of the mailing of the relevant notice of
redemption or (ii) to register the transfer of or exchange any Security so
selected for redemption in whole or in part, except the unredeemed portion of
any Security being redeemed in part.

SECTION 306.  Mutilated, Destroyed, Lost and Stolen Securities.

                 If any mutilated Security is surrendered to the Trustee, the
Company shall execute and the Trustee shall authenticate and deliver in
exchange therefor a new Security of the same series and of like tenor and
principal amount and bearing a number not contemporaneously outstanding.

                 If there shall be delivered to the Company and the Trustee (i)
evidence to their satisfaction of the destruction, loss or theft of any
Security and (ii) such security or indemnity as may be required by them to save
each of them and any agent of either of them harmless, then, in the absence of
notice to the Company or the Trustee that such Security has been acquired by a
bona fide purchaser, the Company shall execute and upon its request the Trustee
shall authenticate and deliver, in lieu of any such destroyed, lost or stolen
Security, a new Security of the same series and of like tenor and principal
amount and bearing a number not contemporaneously outstanding.

                 In case any such mutilated, destroyed, lost or stolen Security
has become or is about to become due and payable, the Company in its discretion
may, instead of issuing a new Security, pay such Security.

                 Upon the issuance of any new Security under this Section, the
Company may require the payment of a sum sufficient to cover any tax or other
governmental charge that may be imposed in relation thereto and any other
expenses (including the fee and expenses of the Trustee) connected therewith.

                 Every new Security of any series issued pursuant to this
Section in lieu of any destroyed, lost or stolen Security shall constitute an
original additional contractual obligation of the Company, whether or not the
destroyed, lost or stolen Security shall be at any time enforceable by anyone,
and shall be entitled to all the benefits of this Indenture equally and
proportionately with any and all other Securities of that series duly issued
hereunder.

                 The provisions of this Section are exclusive and shall
preclude (to the extent lawful) all other rights and remedies with respect to
the replacement or payment of mutilated, destroyed, lost or stolen Securities.





                                       24
<PAGE>   33
SECTION 307.  Payment of Interest; Interest Rights Preserved.

                 Interest on any Security which is payable, and is punctually
paid or duly provided for, on any Interest Payment Date shall be paid to the
Person in whose name that Security (or one or more Predecessor Securities) is
registered at the close of business on the Regular Record Date for such
interest.  Unless otherwise provided with respect to the Securities of any
series, payment of interest may be made at the option of the Company by check
mailed or delivered to the address of any Person entitled thereto as such
address shall appear in the Security Register.

                 Any interest on any Security of any series which is payable,
but is not punctually paid or duly provided for, on any Interest Payment Date
(herein called "Defaulted Interest") shall forthwith cease to be payable to the
Holder on the relevant Regular Record Date by virtue of having been such
Holder, and such Defaulted Interest may be paid by the Company, at its election
in each case, as provided in clause (1) or (2) below:

                 (1)      The Company may elect to make payment of any
         Defaulted Interest to the Persons in whose names the Securities of
         such series (or their respective Predecessor Securities) are
         registered at the close of business on a Special Record Date for the
         payment of such Defaulted Interest, which shall be fixed in the
         following manner.  The Company shall notify the Trustee in writing of
         the amount of Defaulted Interest proposed to be paid on each Security
         of such series and the date of the proposed payment, and at the same
         time the Company shall deposit with the Trustee an amount of money
         equal to the aggregate amount proposed to be paid in respect of such
         Defaulted Interest or shall make arrangements satisfactory to the
         Trustee for such deposit prior to the date of the proposed payment,
         such money when deposited to be held in trust for the benefit of the
         Persons entitled to such Defaulted Interest as in this Clause
         provided.  Thereupon the Trustee shall fix a Special Record Date for
         the payment of such Defaulted Interest which shall be not more than 15
         days and not less than 10 days prior to the date of the proposed
         payment and not less than 10 days after the receipt by the Trustee of
         the notice of the proposed payment.  The Trustee shall promptly notify
         the Company of such Special Record Date and, in the name and at the
         expense of the Company, shall cause notice of the proposed payment of
         such Defaulted Interest and the Special Record Date therefor to be
         mailed, first-class postage prepaid, to each Holder of Securities of
         such series at his address as it appears in the Security Register, not
         less than 10 days prior to such Special Record Date.  The Trustee may,
         in its discretion, in the name and at the expense of the Company,
         cause a similar notice to be published at least once in an Authorized
         Newspaper, but such publication shall not be a condition precedent to
         the establishment of such Special Record Date.  Notice of the proposed
         payment of such Defaulted Interest and the Special Record Date
         therefor having been so mailed, such Defaulted Interest shall be paid
         to the Persons in whose names the Securities of such series (or their
         respective Predecessor Securities) are registered at the close of
         business on such Special Record Date and shall no longer be payable
         pursuant to the following clause (2).

                 (2)      The Company may make payment of any Defaulted
         Interest on the Securities of any series in any other lawful manner
         not inconsistent with the requirements of any securities exchange on
         which such Securities may be listed, and upon such notice as may be





                                       25
<PAGE>   34
         required by such exchange, if, after notice given by the Company to
         the Trustee of the proposed payment pursuant to this Clause, such
         manner of payment shall be deemed practicable by the Trustee.

                 Subject to the foregoing provisions of this Section, each
Security delivered under this Indenture, upon registration of transfer of, in
exchange for or in lieu of, any other Security, shall carry the rights to
interest accrued and unpaid, and to accrue, which were carried by such other
Security.

SECTION 308.  Persons Deemed Owners.

                 Prior to due presentment of a Security for registration of
transfer, the Company, the Trustee and any agent of the Company or the Trustee
may treat the Person in whose name such Security is registered as the owner of
such Security for the purpose of receiving payment of principal of (and
premium, if any) and (subject to Sections 305 and 307) interest on such
Security and for all other purposes whatsoever, whether or not such Security be
overdue, and neither the Company, the Trustee nor any agent of the Company or
the Trustee shall be affected by notice to the contrary.

SECTION 309.  Cancellation.

                 All Securities surrendered for payment, redemption,
registration of transfer or exchange or for credit against any sinking fund
payment shall, if surrendered to any Person other than the Trustee, be
delivered to the Trustee.  All Securities so delivered shall be promptly
cancelled by the Trustee.  The Company may at any time deliver to the Trustee
for cancellation any Securities previously authenticated and delivered
hereunder which the Company may have acquired in any manner whatsoever, and all
Securities so delivered shall be promptly cancelled by the Trustee.  No
Securities shall be authenticated in lieu of or in exchange for any Securities
cancelled as provided in this Section, except as expressly permitted by this
Indenture.  All cancelled Securities held by the Trustee shall be disposed of
as directed by a Company Order; provided that the Trustee shall not be required
to destroy such Securities.

SECTION 310.  Computation of Interest.

                 Except as otherwise specified as contemplated by Section 301
for Securities of any series, interest on the Securities of each series shall
be computed on the basis of a year of twelve 30-day months.

SECTION 311.  CUSIP Numbers.

                 The Company in issuing the Securities may use "CUSIP" numbers
(if then generally in use), and, if so, the Trustee shall use "CUSIP" numbers
in notices of redemption as a convenience to Holders; provided that any such
notice may state that no representation is made as to the correctness of such
numbers either as printed on the Securities or as contained in any notice of a
redemption and that reliance may be placed only on the other identification
numbers printed on the





                                       26
<PAGE>   35
Securities, and any such redemption shall not be affected by any defect in or
omission of such numbers.

                                  ARTICLE FOUR

                           SATISFACTION AND DISCHARGE

SECTION 401.  Satisfaction and Discharge of Indenture.

                 This Indenture shall upon Company Request cease to be of
further effect with respect to Securities of a series, and the Trustee, at the
expense of the Company, shall execute proper instruments acknowledging
satisfaction and discharge of this Indenture with respect to Securities of such
series, when

                 (1)      either

                          (A)     all Securities of such series theretofore
                 authenticated and delivered (other than (i) Securities which
                 have been destroyed, lost or stolen and which have been
                 replaced or paid as provided in Section 306, and (ii)
                 Securities for whose payment money has theretofore been
                 deposited in trust or segregated and held in trust by the
                 Company and thereafter repaid to the Company or discharged
                 from such trust, as provided in Section 1003) have been
                 delivered to the Trustee for cancellation; or

                          (B)     with respect to all Outstanding Securities of
                 such series not theretofore delivered to the Trustee for
                 cancellation, the Company has deposited or caused to be
                 deposited with the Trustee as trust funds, under the terms of
                 an irrevocable trust agreement in form and substance
                 satisfactory to the Trustee, money or U.S. Government
                 Obligations maturing as to principal and interest in such
                 amounts and at such times as will (together with the income to
                 accrue thereon and without consideration of any reinvestment
                 thereof) be sufficient to pay and discharge (with such
                 delivery in trust to be for the stated purpose of paying and
                 discharging) the entire indebtedness on all Outstanding
                 Securities of such series not theretofore delivered to the
                 Trustee for cancellation for principal (and premium and
                 Additional Amounts, if any) and interest to the Stated
                 Maturity or any Redemption Date contemplated by the
                 penultimate paragraph of this Section, as the case may be; or

                          (C)     the Company has properly fulfilled such other
                 means of satisfaction and discharge as is specified, as
                 contemplated by Section 301, to be applicable to the
                 Securities of such series;

                 (2)      the Company has paid or caused to be paid all other
         sums payable hereunder by the Company with respect to the Outstanding
         Securities of such series;





                                       27
<PAGE>   36
                 (3)      the Company has complied with any other conditions
         specified pursuant to Section 301 to be applicable to the discharge of
         Securities of such series pursuant to this Section 401;

                 (4)      the Company has delivered to the Trustee an Officers'
         Certificate and an Opinion of Counsel, each stating that all
         conditions precedent herein provided for relating to the satisfaction
         and discharge of this Indenture with respect to the Outstanding
         Securities of such series have been complied with;

                 (5)      if the conditions set forth in Section 401(1)(A) have
         not been satisfied, and unless otherwise specified pursuant to Section
         301 for the Securities of such series, the Company has delivered to
         the Trustee an Opinion of Counsel to the effect that the Holders of
         Securities of such series will not recognize income, gain or loss for
         United States federal income tax purposes as a result of such deposit,
         satisfaction and discharge and will be subject to United States
         federal income tax on the same amount and in the same manner and at
         the same time as would have been the case if such deposit,
         satisfaction and discharge had not occurred; and

                 (6)      no Default or Event of Default with respect to the
         Securities of such issue shall have occurred and be continuing on the
         date of such deposit or, insofar as clauses (5) or (6) of Section 501
         are concerned, at any time in the period ending on the 91st day after
         the date of such deposit (it being understood that this condition
         shall not be deemed satisfied until the expiration of such period).

                 For the purposes of this Indenture, "U.S. Government
Obligations" means direct non-callable obligations of, or non-callable
obligations the payment of principal of and interest on which is guaranteed by,
the United States of America, or to the payment of which obligations or
guarantees the full faith and credit of the United States of America is
pledged, or beneficial interests in a trust the corpus of which consists
exclusively of money or such obligations or a combination thereof.

                 If any Outstanding Securities of such series are to be
redeemed prior to their Stated Maturity, whether pursuant to any optional
redemption provisions or in accordance with any mandatory sinking fund
requirement, the trust agreement referred to in subclause (B) of clause (1) of
this Section shall provide therefor and the Company shall make such
arrangements as are satisfactory to the Trustee for the giving of notice of
redemption by the Trustee in the name, and at the expense, of the Company.

                 Notwithstanding the satisfaction and discharge of this
Indenture with respect to the Outstanding Securities of such series pursuant to
this Section 401, the obligations of the Company to the Trustee under Section
607, the obligations to any Authenticating Agent under Section 614 and, except
for a discharge pursuant to subclause (A) of clause (1) of this Section, the
obligations of the Company under Sections 305, 306, 404, 610(e), 701, 1001 and
1002 and the obligations of the Trustee under Section 402 and the last
paragraph of Section 1003 shall survive.





                                       28
<PAGE>   37
SECTION 402.  Application of Trust Money.

                 Subject to the provisions of the last paragraph of Section
1003, all money deposited with the Trustee pursuant to Section 401 shall be
held in trust and applied by it, in accordance with the provisions of the
Securities, and this Indenture, to the payment, either directly or through any
Paying Agent (including the Company acting as its own Paying Agent) as the
Trustee may determine, to the Persons entitled thereto, of the principal (and
premium, if any) and interest and Additional Amounts for the payment of which
such money has been deposited with the Trustee.

SECTION 403.  Discharge of Liability on Securities of Any Series.

                 If this Section is specified, as contemplated by Section 301,
to be applicable to Securities of any series, the Company shall be deemed to
have paid and discharged the entire indebtedness on all the Outstanding
Securities of such series, the obligation of the Company under this Indenture
and the Securities of such series to pay the principal of (and premium, if any)
and interest on and any Additional Amounts with respect to Securities of such
series, shall cease, terminate and be completely discharged and the Trustee, at
the expense of the Company, shall execute proper instruments acknowledging such
satisfaction and discharge, when

                 (1)      the Company has complied with the provisions of
         Section 401 (other than any additional conditions specified pursuant
         to Sections 301 and 401(3) and except that the Opinion of Counsel
         referred to in Section 401(5) shall state that it is based on a ruling
         by the Internal Revenue Service or other change since the date hereof
         under applicable Federal income tax law) with respect to all
         Outstanding Securities of such series,

                 (2)      the Company has delivered to the Trustee a Company
         Request requesting such satisfaction and discharge,

                 (3)      the Company has complied with any other conditions
         specified pursuant to Section 301 to be applicable to the discharge of
         Securities of such series pursuant to this Section 403, and

                 (4)      the Company has delivered to the Trustee an Officers'
         Certificate and an Opinion of Counsel, each stating that all
         conditions precedent herein provided for relating to the discharge of
         the indebtedness on the Outstanding Securities of such series have
         been complied with.

                 Upon the satisfaction of the conditions set forth in this
Section with respect to all the Outstanding Securities of any series, the terms
and conditions of such series, including the terms and conditions with respect
thereto set forth in this Indenture, shall no longer be binding upon, or
applicable to, the Company; provided that, the Company shall not be discharged
from any payment obligations in respect of Securities of such series which are
deemed not to be Outstanding under clause (iii) of the definition thereof if
such obligations continue to be valid obligations of the Company under
applicable law or pursuant to Section 305 or 306.





                                       29
<PAGE>   38
SECTION 404.  Reinstatement

                 If the Trustee or Paying Agent is unable to apply any money or
U.S. Government Obligations deposited with respect to Securities of any series
in accordance with Section 401 by reason of any legal proceeding or by reason
of any order or judgment of any court or governmental authority enjoining,
restraining or otherwise prohibiting such application, the Company's
obligations under this Indenture with respect to the Securities of such series
and the Securities of such series shall be revived and reinstated as though no
deposit had occurred pursuant to Section 401 until such time as the Trustee or
Paying Agent is permitted to apply all such money or U.S. Government
Obligations in accordance with Section 401; provided, however, that if the
Company has made any payment of principal of (or premium, if any), or interest
on or any Additional Amounts with respect to any Securities because of the
reinstatement of its obligations, the Company shall be subrogated to the rights
of the Holders of such Securities to receive such payment from the money or
U.S. Government Obligations held by the Trustee or Paying Agent.

                                  ARTICLE FIVE

                                    REMEDIES

SECTION 501.  Events of Default.

                 "Event of Default", wherever used herein with respect to
Securities of any series, means any one of the following events (whatever the
reason for such Event of Default and whether it shall be occasioned by the
provisions of Article Thirteen or be voluntary or involuntary or be effected by
operation of law or pursuant to any judgment, decree or order of any court or
any order, rule or regulation of any administrative or governmental body),
unless it is either inapplicable to a particular series or it is specifically
deleted or modified in or pursuant to the supplemental indenture or Board
Resolution establishing such series of Securities or in the form of Security
for such series:

                 (1)      default in the payment of any interest on or any
         Additional Amounts with respect to any Security of that series when
         such interest or Additional Amounts become due and payable, and
         continuance of such default for a period of 30 days; or

                 (2)      default in the payment of the principal of (or
         premium, if any, on) any Security of that series at its Maturity; or

                 (3)      default in the deposit of any mandatory sinking fund
         payment, when and as due by the terms of a Security of that series and
         continuance of such default for a period of 30 days; or

                 (4)      default in the performance or breach of any covenant
         or warranty of the Company in this Indenture (other than a covenant or
         warranty a default in whose performance or whose breach is elsewhere
         in this Section specifically dealt with or which has expressly been
         included in this Indenture solely for the benefit of one or more
         series of Securities other than that series), and continuance of such
         default or breach for a period of





                                       30
<PAGE>   39
         90 days after there has been given, by registered or certified mail,
         to the Company by the Trustee or to the Company and the Trustee by the
         Holders of at least 25% in principal amount of all Outstanding
         Securities a written notice specifying such default or breach and
         requiring it to be remedied and stating that such notice is a "Notice
         of Default" hereunder; or

                 (5)      the entry by a court having jurisdiction in the
         premises of (A) a decree or order for relief in respect of the Company
         in an involuntary case or proceeding under any applicable Federal or
         State bankruptcy, insolvency, reorganization or other similar law or
         (B) a decree or order adjudging the Company a bankrupt or insolvent,
         or approving as properly filed a petition seeking reorganization,
         arrangement, adjustment or composition of or in respect of the Company
         under any applicable Federal or State law, or appointing a custodian,
         receiver, liquidator, assignee, trustee, sequestrator or other similar
         official of the Company or of any substantial part of its property, or
         ordering the winding up or liquidation of its affairs, and the
         continuance of any such decree or order for relief or any such other
         decree or order unstayed and in effect for a period of 90 consecutive
         days; or

                 (6)      the commencement by the Company of a voluntary case
         or proceeding under any applicable Federal or State bankruptcy,
         insolvency, reorganization or other similar law or of any other case
         or proceeding to be adjudicated a bankrupt or insolvent, or the
         consent by it to the entry of a decree or order for relief in respect
         of the Company in an involuntary case or proceeding under any
         applicable Federal or State bankruptcy, insolvency, reorganization or
         other similar law or to the commencement of any bankruptcy or
         insolvency case or proceeding against it, or the filing by it, of a
         petition or answer or consent seeking reorganization or relief under
         any applicable Federal or State law, or the consent by it to the
         filing of such petition or to the appointment of or taking possession
         by a custodian, receiver, liquidator, assignee, trustee, sequestrator
         or similar official of the Company or of any substantial part of its
         property, or the making by it of an assignment for the benefit of
         creditors, or the admission by it in writing of its inability to pay
         its debts generally as they become due, or the taking of corporate
         action by the Company in furtherance of any such action; or

                 (7)      any other Event of Default provided with respect to
         Securities of that series.

                 Notwithstanding the foregoing provisions of this Section 501,
if the principal of (and premium, if any) or any interest on, or Additional
Amounts with respect to, any Security is payable in a currency or currencies
(including a composite currency) other than Dollars and such currency (or
currencies) is (or are) not available to the Company for making payment thereof
due to the imposition of exchange controls or other circumstances beyond the
control of the Company (a "Conversion Event"), the Company will be entitled to
satisfy its obligations to Holders of the Securities by making such payment in
Dollars in an amount equal to the Dollar equivalent of the amount payable in
such other currency, as determined by the Company by reference to the noon
buying rate in The City of New York for cable transfers for such currency
("Exchange Rate"), as such Exchange Rate is certified for customs purposes by
the Federal Reserve Bank of New York on the date of such payment, or, if such
rate is not then available, on the basis of the most recently





                                       31
<PAGE>   40
available Exchange Rate.  Notwithstanding the foregoing provisions of this
Section 501, any payment made under such circumstances in Dollars where the
required payment is in a currency other than Dollars will not constitute an
Event of Default under this Indenture.

                 Promptly after the occurrence of a Conversion Event with
respect to Securities of any series, the Company shall give written notice
thereof to the Trustee; and the Trustee, promptly after receipt of such notice,
shall give notice thereof in the manner provided in Section 107 to the Holders
of such series.  Promptly after the making of any payment in Dollars as a
result of a Conversion Event with respect to Securities of any series, the
Company shall give notice in the manner provided in Section 107 to the Holders
of such series, setting forth the applicable Exchange Rate and describing the
calculation of such payments.

SECTION 502.  Acceleration of Maturity; Rescission and Annulment.

                 If an Event of Default with respect to any Securities of any
series at the time Outstanding occurs and is continuing, then in every such
case the Trustee or the Holders of not less than 25% in principal amount of the
Outstanding Securities of (i) the series affected by such default (in the case
of an Event of Default described in clause (1), (2), (3) or (7) of Section 501)
or (ii) all series of Securities (subject to the immediately following
sentence, in the case of an Event of Default described in clause (4) of Section
501) may declare the principal amount (or, if any such Securities are Original
Issue Discount Securities, such portion of the principal amount as may be
specified in the terms of that series) of all of the Securities of the series
affected by such default or all series, as the case may be, to be due and
payable immediately, by a notice in writing to the Company (and to the Trustee
if given by Holders), and upon any such declaration such principal amount (or
specified amount) shall become immediately due and payable.  If an Event of
Default described in clause (5) or (6) of Section 501 shall occur, the
principal amount of the Outstanding Securities of all series ipso facto shall
become and be immediately due and payable without any declaration or other act
on the part of the Trustee or any Holder.

                 At any time after such a declaration of acceleration with
respect to Securities of any series (or of all series, as the case may be) has
been made and before a judgment or decree for payment of the money due has been
obtained by the Trustee as hereinafter in this Article provided, the Holders of
a majority in principal amount of the Outstanding Securities of that series (or
of all series, as the case may be), by written notice to the Company and the
Trustee, may rescind and annul such declaration and its consequences if

                 (1)      the Company has paid or deposited with the Trustee a
         sum sufficient to pay

                          (A)     all overdue interest on, and any Additional
                 Amounts with respect to, all Securities of that series (or of
                 all series, as the case may be),

                          (B)     the principal of (and premium, if any, on)
                 any Securities of that series (or of all series, as the case
                 may be) which have become due otherwise than by such
                 declaration of acceleration and interest thereon at the rate
                 or rates prescribed therefor





                                       32
<PAGE>   41
                 in such Securities (in the case of Original Issue Discount
                 Securities, the Securities' Yield to Maturity),

                          (C)     to the extent that payment of such interest
                 is lawful, interest upon overdue interest and any Additional
                 Amounts at the rate or rates prescribed therefor in such
                 Securities (in the case of Original Issue Discount Securities,
                 the Securities' Yield to Maturity), and

                          (D)     all sums paid or advanced by the Trustee
                 hereunder and the reasonable compensation, expenses,
                 disbursements and advances of the Trustee, its agents and
                 counsel;

         and

                 (2)      all Events of Default with respect to Securities of
         that series (or of all series, as the case may be), other than the
         non-payment of the principal of Securities of that series (or of all
         series, as the case may be) which have become due solely by such
         declaration of acceleration, have been cured or waived as provided in
         Section 512.

No such rescission shall affect any subsequent default or impair any right
consequent thereon.

SECTION 503.  Collection of Indebtedness and Suits for Enforcement by Trustee.

                 The Company covenants that if

                 (1)      default is made in the payment of any installment of
         interest on, or any Additional Amounts with respect to, any Security
         of any series when such interest or Additional Amounts shall have
         become due and payable and such default continues for a period of 30
         days, or

                 (2)      default is made in the payment of the principal of
         (or premium, if any, on) any Security at the Maturity thereof,

the Company will, upon demand of the Trustee, pay to it, for the benefit of the
Holders of such Securities, the whole amount then due and payable on such
Securities for principal (and premium, if any) and interest and Additional
Amounts and, to the extent that payment of such interest shall be legally
enforceable, interest on any overdue principal (and premium, if any) and on any
overdue interest and Additional Amounts, at the rate or rates prescribed
therefor in such Securities (or in the case of Original Issue Discount
Securities, the Securities' Yield to Maturity), and, in addition thereto, such
further amount as shall be sufficient to cover the costs and expenses of
collection, including the reasonable compensation, expenses, disbursements and
advances of the Trustee, its agents and counsel.

                 If the Company fails to pay such amounts forthwith upon such
demand, the Trustee, in its own name and as trustee of an express trust, may
institute a judicial proceeding for the





                                       33
<PAGE>   42
collection of the sums so due and unpaid, may prosecute such proceeding to
judgment or final decree and may enforce the same against the Company or any
other obligor upon such Securities and collect the moneys adjudged or decreed
to be payable in the manner provided by law out of the property of the Company
or any other obligor upon such Securities, wherever situated.

                 If an Event of Default with respect to Securities of any
series occurs and is continuing, the Trustee may in its discretion proceed to
protect and enforce its rights and the rights of the Holders of Securities of
such series by such appropriate judicial proceedings as the Trustee shall deem
most effectual to protect and enforce any such rights, whether for the specific
enforcement of any covenant or agreement in this Indenture or in aid of the
exercise of any power granted herein, or to enforce any other proper remedy.

SECTION 504.  Trustee May File Proofs of Claim.

                 In case of the pendency of any receivership, insolvency,
liquidation, bankruptcy, reorganization, arrangement, adjustment, composition
or other judicial proceeding relative to the Company or any other obligor upon
the Securities or the property of the Company or of such other obligor or their
creditors, the Trustee (irrespective of whether the principal (or lesser amount
in the case of Original Issue Discount Securities) of the Securities shall then
be due and payable as therein expressed or by declaration or otherwise and
irrespective of whether the Trustee shall have made any demand on the Company
for the payment of overdue principal (and premium, if any), interest or any
Additional Amounts) shall be entitled and empowered, by intervention in such
proceeding or otherwise,

                 (i)      to file and prove a claim for the whole amount of
         principal (or lesser amount in the case of Original Issue Discount
         Securities) (and premium, if any) and interest and any Additional
         Amounts owing and unpaid in respect of the Securities and to file such
         other papers or documents as may be necessary or advisable in order to
         have the claims of the Trustee (including any claim for the reasonable
         compensation, expenses, disbursements and advances of the Trustee, its
         agents and counsel) and of the Holders allowed in such judicial
         proceeding, and

                 (ii)     to collect and receive any monies or other property
         payable or deliverable on any such claims and to distribute the same;

and any custodian, receiver, assignee, trustee, liquidator, sequestrator or
other similar official in any such judicial proceeding is hereby authorized by
each Holder to make such payments to the Trustee and, in the event that the
Trustee shall consent to the making of such payments directly to the Holders,
to pay to the Trustee any amount due it for the reasonable compensation,
expenses, disbursements and advances of the Trustee, its agents and counsel,
and any other amounts due the Trustee under Section 607.

                 Nothing herein contained shall be deemed to authorize the
Trustee to authorize or consent to or accept or adopt on behalf of any Holder
any plan of reorganization, arrangement, adjustment or composition affecting
the Securities or the rights of any Holder thereof or to authorize





                                       34
<PAGE>   43
the Trustee to vote in respect of the claim of any Holder in any such
proceedings; provided, however,  that the Trustee may, on behalf of the
Holders, vote for the election of a trustee in bankruptcy or similar official.

SECTION 505.  Trustee May Enforce Claims Without Possession of Securities or
              Coupons.

                 All rights of action and claim under this Indenture or the
Securities may be prosecuted and enforced by the Trustee without possession of
any of the Securities or the production thereof in any proceeding relating
thereto, and any such proceeding instituted by the Trustee shall be brought in
its own name as trustee of an express trust, and any recovery of judgment
shall, after provision for the payment of the reasonable compensation,
expenses, disbursements and advances of the Trustee, its agents and counsel, be
for the ratable benefit of the Holders of the Securities in respect of which
such judgment has been recovered.

SECTION 506.  Application of Money Collected.

                 Subject to Article Thirteen, any money collected by the
Trustee pursuant to this Article shall be applied in the following order, at
the date or dates fixed by the Trustee and, in case of the distribution of such
money on account of principal (or premium, if any), interest or any Additional
Amounts, upon presentation of the Securities, and the notation thereon of the
payment if only partially paid and upon surrender thereof if fully paid:

                 FIRST:  To the payment of all amounts due the Trustee under
         Section 607;

                 SECOND: To the payment of the amounts then due and unpaid for
         principal of (and premium, if any) and interest on and any Additional
         Amounts with respect to the Securities in respect of which or for the
         benefit of which such money has been collected, ratably, without
         preference or priority of any kind, according to the amounts due and
         payable on such Securities for principal (and premium, if any),
         interest and Additional Amounts, respectively; and

                 THIRD:  The balance, if any, to the Person or Persons entitled
         thereto.

                 To the fullest extent allowed under applicable law, if for the
purpose of obtaining judgment against the Company in any court it is necessary
to convert the sum due in respect of the principal of (or premium, if any) or
interest on or any Additional Amounts with respect to the Securities of any
series (the "Required Currency") into a currency in which a judgment will be
rendered (the "Judgment Currency"), the rate of exchange used shall be the rate
at which in accordance with normal banking procedures the Trustee could
purchase in The City of New York the Required Currency with the Judgment
Currency on the New York Business Day next preceding that on which final
judgment is given.  Neither the Company nor the Trustee shall be liable for any
shortfall nor shall it benefit from any windfall in payments to Holders of
Securities under this Section caused by a change in exchange rates between the
time the amount of a judgment against it is calculated as above and the time
the Trustee converts the Judgment Currency into the Required Currency to make
payments under this Section to Holders of Securities, but payment of such





                                       35
<PAGE>   44
judgment shall discharge all amounts owed by the Company on the claim or claims
underlying such judgment.

SECTION 507.  Limitation on Suits.

                 Subject to Section 508, no Holder of any Security of any
series shall have any right to institute any proceeding, judicial or otherwise,
with respect to this Indenture, or for the appointment of a receiver or
trustee, or for any other remedy hereunder, unless

                 (1)      an Event of Default with respect to Securities of
         such series shall have occurred and be continuing and such Holder has
         previously given written notice to the Trustee of such continuing
         Event of Default;

                 (2)      the Holders of not less than 25% in principal amount
         of the Outstanding Securities of that series shall have made written
         request to the Trustee to institute proceedings in respect of such
         Event of Default in its own name as Trustee hereunder;

                 (3)      such Holder or Holders have offered to the Trustee
         reasonable indemnity against the costs, expenses and liabilities to be
         incurred in compliance with such request;

                 (4)      the Trustee for 60 days after its receipt of such
         notice, request and offer of indemnity has failed to institute any
         such proceeding; and

                 (5)      no direction inconsistent with such written request
         has been given to the Trustee during such 60-day period by the Holders
         of a majority in principal amount of the Outstanding Securities of
         that series;

it being understood and intended that no one or more of such Holders shall have
any right in any manner whatever by virtue of, or by availing of, any provision
of this Indenture to affect, disturb or prejudice the rights of any other of
such Holders, or to obtain or to seek to obtain priority or preference over any
other of such Holders or to enforce any right under this Indenture, except in
the manner herein provided and for the equal and ratable benefit of all of such
Holders.

SECTION 508.  Unconditional Right of Holders to Receive Principal Premium and
Interest.

                 Notwithstanding any other provision in this Indenture, the
Holder of any Security shall have the right, which is absolute and
unconditional, to receive payment of the principal of (and premium, if any) and
(subject to Section 307) interest on and any Additional Amounts with respect to
such Security on the Stated Maturity or Maturities expressed in such Security
(or, in the case of redemption, on the Redemption Date) and to institute suit
for the enforcement of any such payment, and such rights shall not be impaired
or affected without the consent of such Holder.





                                       36
<PAGE>   45
SECTION 509.   Restoration of Rights and Remedies.

                 If the Trustee or any Holder of any Security has instituted
any proceeding to enforce any right or remedy under this Indenture and such
proceeding has been discontinued or abandoned for any reason, then and in every
such case the Company, the Trustee and the Holders shall, subject to any
determination in such proceeding, be restored severally and respectively to
their former positions hereunder, and thereafter all rights and remedies of the
Trustee and the Holders shall continue as though no such proceeding had been
instituted.

SECTION 510.  Rights and Remedies Cumulative.

                 Except as otherwise provided with respect to the replacement
or payment of mutilated, destroyed, lost or stolen Securities in the last
paragraph of Section 306, no right or remedy herein conferred upon or reserved
to the Trustee or to the Holders is intended to be exclusive of any other right
or remedy, and every right and remedy shall, to the extent permitted by law, be
cumulative and in addition to every other right and remedy given hereunder or
now or hereafter existing at law or in equity or otherwise.  The assertion or
employment of any right or remedy hereunder, or otherwise, shall not prevent
the concurrent assertion or employment of any other appropriate right or
remedy.

SECTION 511.  Delay or Omission Not Waiver.

                 No delay or omission of the Trustee or of any Holder of any
Securities to exercise any right or remedy accruing upon any Event of Default
shall impair any such right or remedy or constitute a waiver of any such Event
of Default or an acquiescence therein.  Every right and remedy given by this
Article or by law to the Trustee or to the Holders may be exercised from time
to time, and as often as may be deemed expedient, by the Trustee or by the
Holders, as the case may be.

SECTION 512.  Control by Holders.

                 With respect to Securities of any series, the Holders of a
majority in principal amount of the Outstanding Securities of such series shall
have the right to direct the time, method and place of conducting any
proceeding for any remedy available to the Trustee, or exercising any trust or
power conferred on the Trustee, relating to or arising under an Event of
Default described in clause (1), (2), (3) or (7) of Section 501, and with
respect to all Securities the Holders of a majority in principal amount of all
Outstanding Securities shall have the right to direct the time, method and
place of conducting any remedy available to the Trustee, or exercising any
trust or power conferred on the Trustee, not relating to or arising under such
an Event of Default, provided that in each such case

                 (1)      such direction shall not be in conflict with any rule
         of law or with this Indenture, and

                 (2)      the Trustee may take any other action deemed proper
         by the Trustee which is not inconsistent with such direction.





                                       37
<PAGE>   46
SECTION 513.  Waiver of Past Defaults.

                 The Holders of a majority in principal amount of the
Outstanding Securities of any series may on behalf of the Holders of all the
Securities of such series waive any past default hereunder with respect to such
series and its consequences, and the Holders of a majority in principal amount
of all Outstanding Securities may on behalf of the Holders of all Securities
waive any other past default hereunder and its consequences, except in each
case a default

                 (1)      in the payment of the principal of (or premium, if
         any) or interest on, or any Additional Amounts with respect to, any
         Security, or

                 (2)      in respect of a covenant or provision hereof which
         under Article Nine cannot be modified or amended without the consent
         of the Holder of each Outstanding Security affected.

                 Upon any such waiver, such default shall cease to exist, and
any Event of Default arising therefrom shall be deemed to have been cured, for
every purpose of this Indenture; but no such waiver shall extend to any
subsequent or other default or impair any right consequent thereon.

SECTION 514.  Undertaking for Costs.

                 All parties to this Indenture agree, and each Holder of any
Security by his acceptance thereof shall be deemed to have agreed, that any
court may in its discretion require, in any suit for the enforcement of any
right or remedy under this Indenture, or in any suit against the Trustee for
any action taken or omitted by it as Trustee, the filing by any party litigant
in such suit of an undertaking to pay the costs of such suit, and that such
court may in its discretion assess reasonable costs, including reasonable
attorneys' fees, against any party litigant in such suit, having due regard to
the merits and good faith of the claims or defenses made by such party
litigant; but the provisions of this Section shall not apply to any suit
instituted by the Company, to any suit instituted by the Trustee, to any suit
instituted by any Holder, or group of Holders, holding in the aggregate more
than 10% in principal amount of the Outstanding Securities of any series, or to
any suit instituted by any Holder for the enforcement of the payment of the
principal of (or premium, if any) or interest on, or any Additional Amounts
with respect to, any Security on or after the Stated Maturity or Maturities
expressed in such Security (or, in the case of redemption, on or after the
Redemption Date).

SECTION 515.   Waiver of Stay or Extension Laws.

                 The Company covenants (to the extent that it may lawfully do
so) that it will not at any time insist upon, or plead, or in any manner
whatsoever claim or take the benefit or advantage of, any stay or extension law
wherever enacted, now or at any time hereafter in force, which may affect the
covenants or the performance of this Indenture; and the Company (to the extent
that it may lawfully do so) hereby expressly waives all benefit or advantage of
any such law, and covenants that it will not hinder, delay or impede the
execution of any power herein granted to the Trustee, but will suffer and
permit the execution of every such power as though no such law had been
enacted.





                                       38
<PAGE>   47

                                  ARTICLE SIX

                                  THE TRUSTEE

SECTION 601.  Certain Duties and Responsibilities.

                 (a)      Except during the continuance of an Event of Default
         with respect to the Securities of any series,

                          (1)     the Trustee undertakes to perform such duties
                 and only such duties as are specifically set forth in this
                 Indenture, and no implied covenants or obligations shall be
                 read into this Indenture against the Trustee; and

                          (2)     in the absence of bad faith on its part, the
                 Trustee may conclusively rely, as to the truth of the
                 statements and the correctness of the opinions expressed
                 therein, upon certificates or opinions furnished to the
                 Trustee and conforming to the requirements of this Indenture;
                 but in the case of any such certificates or opinions which by
                 any provision hereof are specifically required to be furnished
                 to the Trustee, the Trustee shall be under a duty to examine
                 the same to determine whether or not they conform to the
                 requirements of this Indenture.

                 (b)      In case an Event of Default has occurred and is
         continuing with respect to the Securities of any series, the Trustee
         shall exercise such of the rights and powers vested in it by this
         Indenture, and use the same degree of care and skill in their
         exercise, as a prudent man would exercise or use under the
         circumstances in the conduct of his own affairs.

                 (c)      No provision of this Indenture shall be construed to
         relieve the Trustee from liability for its own negligent action, its
         own negligent failure to act or its own willful misconduct, except
         that

                          (1)     this Subsection shall not be construed to
                 limit the effect of Subsection (a) of this Section;

                          (2)     the Trustee shall not be liable for any error
                 of judgment made in good faith by a Responsible Officer,
                 unless it shall be proved that the Trustee was negligent in
                 ascertaining the pertinent facts;

                          (3)     the Trustee shall not be liable with respect
                 to any action taken or omitted to be taken by it in good faith
                 in accordance with the direction of the Holders of a majority
                 in principal amount of the Outstanding Securities of any
                 series or of all series, determined as provided in Section
                 511, relating to the time, method and place of conducting any
                 proceeding for any remedy available to the Trustee, or
                 exercising any trust or power conferred upon the Trustee,
                 under this Indenture with respect to the Securities of such
                 series; and





                                       39
<PAGE>   48
                          (4)     no provision of this Indenture shall require
                 the Trustee to expend or risk its own funds or otherwise incur
                 any financial liability in the performance of any of its
                 duties hereunder, or in the exercise of any of its rights or
                 powers, if it shall have reasonable grounds for believing that
                 repayment of such funds or indemnity satisfactory to it
                 against such risk or liability is not assured to it.

                 (d)      Whether or not therein expressly so provided, every
         provision of this Indenture relating to the conduct or affecting the
         liability of or affording protection to the Trustee shall be subject
         to the provisions of this Section.

SECTION 602.  Notice of Defaults.

                 Within 90 days after the occurrence of any default hereunder
with respect to the Securities of any series, the Trustee shall give notice of
such default hereunder known to the Trustee to all Holders of Securities of
such series in the manner provided in Section 107, unless such default shall
have been cured or waived; provided, however, that, except in the case of a
default in the payment of the principal of (or premium, if any) or interest on,
or any Additional Amounts with respect to, any Security of such series or in
the payment of any sinking fund installment with respect to Securities of such
series, the Trustee shall be protected in withholding such notice if and so
long as the board of directors, the executive committee or a trust committee of
directors or Responsible Officers of the Trustee in good faith determines that
the withholding of such notice is in the interest of the Holders of Securities
of such series; and provided, further, that in the case of any default of the
character specified in Section 501(4) with respect to Securities of such
series, no such notice to Holders shall be given until at least 30 days after
the occurrence thereof.  For the purpose of this Section, the term "default"
means any event, act or condition which is, or after notice or lapse of time or
both would become, an Event of Default with respect to Securities of such
series.

SECTION 603.  Certain Rights of Trustee.

                 Subject to the provisions of Section 601:

                 (a)      the Trustee may rely and shall be protected in acting
         or refraining from acting upon any resolution, certificate, statement,
         instrument, opinion, report, notice, request, direction, consent,
         order, bond, debenture, note, coupon, other evidence of indebtedness
         or other paper or document believed by it to be genuine and to have
         been signed or presented by the proper party or parties;

                 (b)      any request or direction of the Company mentioned
         herein shall be sufficiently evidenced by a Company Request or Company
         Order and any resolution of the Board of Directors may be sufficiently
         evidenced by a Board Resolution;

                 (c)      whenever in the administration of this Indenture the
         Trustee shall deem it desirable that a matter be proved or established
         prior to taking, suffering or omitting any action hereunder, the
         Trustee (unless other evidence be herein specifically prescribed) may,
         in the absence of bad faith on its part, rely upon an Officers'
         Certificate;





                                       40
<PAGE>   49
                 (d)      the Trustee may consult with counsel and the written
         advice of such counsel or any Opinion of Counsel shall be full and
         complete authorization and protection in respect of any action taken,
         suffered or omitted by it hereunder in good faith and in reliance
         thereon;

                 (e)      the Trustee shall be under no obligation to exercise
         any of the rights or powers vested in it by this Indenture at the
         request or direction of any of the Holders pursuant to this Indenture,
         unless such Holders shall have offered to the Trustee security or
         indemnity satisfactory to it against the costs, expenses and
         liabilities which might be incurred by it in compliance with such
         request or direction;

                 (f)      the Trustee shall not be bound to make any
         investigation into the facts or matters stated in any resolution,
         certificate, statement, instrument, opinion, report, notice, request,
         direction, consent, order, bond, debenture, note, coupon, other
         evidence of indebtedness or other paper or document, but the Trustee,
         in its discretion, may make such further inquiry or investigation into
         such facts or matters as it may see fit, and, if the Trustee shall
         determine to make such further inquiry or investigation, it shall be
         entitled to examine the books, records and premises of the Company,
         personally or by agent or attorney; and

                 (g)      the Trustee may execute any of the trusts or powers
         hereunder or perform any duties hereunder either directly or by or
         through agents or attorneys and, except for any Affiliates of the
         Trustee, the Trustee shall not be responsible for any misconduct or
         negligence on the part of any agent or attorney appointed with due
         care by it hereunder.

SECTION 604.  Not Responsible for Recitals or Issuance of Securities.

                 The recitals contained herein and in the Securities, except
the Trustee's certificates of authentication, shall be taken as the statements
of the Company, and the Trustee assumes no responsibility for their
correctness.  The Trustee makes no representations as to the validity or
sufficiency of this Indenture or of the Securities.  The Trustee shall not be
accountable for the use or application by the Company of Securities or the
proceeds thereof.

SECTION 605.  May Hold Securities.

                 The Trustee, any Authenticating Agent, any Paying Agent, any
Security Registrar or any other agent of the Company, in its individual or any
other capacity, may become the owner or pledgee of Securities and, subject to
Sections 608 and 613, may otherwise deal with the Company with the same rights
it would have if it were not Trustee, Authenticating Agent, Paying Agent,
Security Registrar or such other agent.

SECTION 606.  Money Held in Trust.

                 Money held by the Trustee in trust hereunder need not be
segregated from other funds except to the extent required by law.  The Trustee
shall be under no liability for interest on any money received by it hereunder
except as otherwise agreed with the Company.





                                       41
<PAGE>   50
SECTION 607.  Compensation and Reimbursement.

                 The Company agrees

                 (1)      to pay to the Trustee from time to time compensation
         for all services rendered by it hereunder (which compensation shall
         not be limited by any provision of law in regard to the compensation
         of a trustee of an express trust);

                 (2)      except as otherwise expressly provided herein, to
         reimburse the Trustee upon its request for all reasonable expenses,
         disbursements and advances incurred or made by the Trustee in
         accordance with any provision of this Indenture (including the
         compensation and the reasonable expenses and disbursements of its
         agents and counsel), except any such expense, disbursement or advance
         as may be attributable to its negligence or bad faith; and

                 (3)      to indemnify the Trustee and each of its directors,
         officers, employees, agents and/or representatives for, and to hold
         each of them harmless against, any loss, liability or expense incurred
         without negligence or bad faith on each of their part, arising out of
         or in connection with the acceptance or administration of the trust or
         trusts hereunder, including the costs and expenses of defending
         themselves against any claim or liability in connection with the
         exercise or performance of any of the Trustee's powers or duties
         hereunder.

                 As security for the performance of the obligations of the
Company under this Section, the Trustee shall have a lien prior to the
Securities upon all property and funds held or collected by the Trustee as
such, except funds held in trust for the payment of principal of, premium, if
any, or interest, if any, on, or any Additional Amounts with respect to,
particular Securities.

                 Any expenses and compensation for any services rendered by the
Trustee after the occurrence of an Event of Default specified in clause (5) or
(6) of Section 501 shall constitute expenses and compensation for services of
administration under all applicable federal or state bankruptcy, insolvency,
reorganization or other similar laws.

                 The provisions of this Section shall survive the termination
of this Indenture.

SECTION 608.  Disqualification; Conflicting Interests.

                 (a)      If the Trustee has or shall acquire any conflicting
         interest, as defined in this Section, with respect to the Securities
         of any series, it shall, within 90 days after ascertaining that it has
         such conflicting interest, either eliminate such conflicting interest
         or resign with respect to the Securities of that series in the manner
         and with the effect hereinafter specified in this Article.

                 (b)      In the event that the Trustee shall fail to comply
         with the provisions of Subsection (a) of this Section with respect to
         the Securities of any series, the Trustee shall, within 10 days after
         the expiration of such 90-day period, transmit by mail to all Holders
         of





                                       42
<PAGE>   51
         Securities of that series, as their names and addresses appear in the
         Security Register, notice of such failure.

                 (c)      For the purposes of this Section, the term
         "conflicting interest" shall have the meaning specified in Section
         310(b) of the Trust Indenture Act and the Trustee shall comply with
         Section 310(b) of the Trust Indenture Act; provided that there shall
         be excluded from the operation of Section 310(b)(1) of the Trust
         Indenture Act with respect to the Securities of any series any
         indenture or indentures under which other securities, or certificates
         of interest or participation in other securities, of the Company are
         outstanding, if the requirements for such exclusion set forth in
         Section 310(b)(1) of the Trust Indenture Act are met.  For purposes of
         the preceding sentence, the optional provision permitted by the second
         sentence of Section 310(b)(9) of the Trust Indenture Act shall be
         applicable.

SECTION 609.  Corporate Trustee Required; Eligibility.

                 There shall at all times be a Trustee hereunder which shall be
a corporation organized and doing business under the laws of the United States
of America, any State thereof or the District of Columbia, authorized under
such laws to exercise corporate trust powers, having a combined capital and
surplus of at least $50,000,000 and subject to supervision or examination by
Federal or State (or District of Columbia) authority.  If such corporation
publishes reports of condition at least annually, pursuant to law or to the
requirements of said supervising or examining authority, then for the purposes
of this Section, the combined capital and surplus of such corporation shall be
deemed to be its combined capital and surplus as set forth in its most recent
report of condition so published.  If at any time the Trustee shall cease to be
eligible in accordance with the provisions of this Section, it shall resign
immediately in the manner and with the effect hereinafter specified in this
Article.

                 The Indenture shall always have a Trustee who satisfies the
requirements of Sections 310(a)(1), 310(a)(2) and 310(a)(5) of the Trust
Indenture Act.

SECTION 610.  Resignation and Removal; Appointment of Successor.

                 (a)      No resignation or removal of the Trustee and no
         appointment of a successor Trustee pursuant to this Article shall
         become effective until the acceptance of appointment by the successor
         Trustee in accordance with the applicable requirements of Section 611.

                 (b)      The Trustee may resign at any time with respect to
         the Securities of one or more series by giving written notice thereof
         to the Company.  If the instrument of acceptance by a successor
         Trustee required by Section 611 shall not have been delivered to the
         resigning Trustee within 30 days after the giving of such notice of
         resignation, the resigning Trustee may petition any court of competent
         jurisdiction for the appointment of a successor Trustee with respect
         to the Securities of such series.

                 (c)      The Trustee may be removed at any time with respect
         to the Securities of any series by Act of the Holders of a majority in
         principal amount of the Outstanding Securities of such series,
         delivered to the Trustee and to the Company.





                                       43
<PAGE>   52
                 (d)      If at any time:

                          (1)     the Trustee shall fail to comply with Section
                 608(a) after written request therefor by the Company or by any
                 Holder who has been a bona fide Holder of a Security for at
                 least six months, or

                          (2)     the Trustee shall cease to be eligible under
                 Section 609 and shall fail to resign after written request
                 therefor by the Company or by any such Holder of Securities,
                 or

                          (3)     the Trustee shall become incapable of acting
                 or shall be adjudged a bankrupt or insolvent or a receiver of
                 the Trustee or of its property shall be appointed or any
                 public officer shall take charge or control of the Trustee or
                 of its property or affairs for the purpose of rehabilitation,
                 conservation or liquidation, then, in any such case, (i) the
                 Company by a Board Resolution may remove the Trustee with
                 respect to all Securities, or (ii) subject to Section 513, any
                 Holder who has been a bona fide Holder of a Security for at
                 least six months may, on behalf of himself and all others
                 similarly situated, petition any court of competent
                 jurisdiction for the removal of the Trustee with respect to
                 all Securities and the appointment of a successor Trustee or
                 Trustees.

                 (e)      If the Trustee shall resign, be removed or become
         incapable of acting, or if a vacancy shall occur in the office of
         Trustee for any cause, with respect to the Securities of one or more
         series, the Company, by a Board Resolution, shall promptly appoint a
         successor Trustee or Trustees with respect to the Securities of that
         or those series (it being understood that any such successor Trustee
         may be appointed with respect to the Securities of one or more or all
         of such series and that at any time there shall be only one Trustee
         with respect to the Securities of any particular series) and such
         successor Trustee or Trustees shall comply with the applicable
         requirements of Section 611.  If no successor Trustee with respect to
         the Securities of any series shall have been so appointed by the
         Company and accepted appointment in the manner required by Section
         611, any Holder who has been a bona fide Holder of a Security of such
         series for at least six months may, on behalf of himself and all
         others similarly situated, petition any court of competent
         jurisdiction for the appointment of a successor Trustee with respect
         to the Securities of such series.

                 (f)      The Company shall give notice of each resignation and
         each removal of the Trustee with respect to the Securities of any
         series and each appointment of a successor Trustee with respect to the
         Securities of any series by mailing written notice of such event by
         first-class mail, postage prepaid, to all Holders of Securities of
         such series as their names and addresses appear in the Security
         Register.  Each notice shall include the name of the successor Trustee
         with respect to the Securities of such series and the address of its
         Corporate Trust Office.





                                       44
<PAGE>   53
SECTION 611.  Acceptance of Appointment by Successor.

                 (a)      In case of the appointment hereunder of a successor
         Trustee with respect to all Securities, every such successor Trustee
         so appointed shall execute, acknowledge and deliver to the Company and
         to the retiring Trustee an instrument accepting such appointment, and
         thereupon the resignation or removal of the retiring Trustee shall
         become effective and such successor Trustee, without any further act,
         deed or conveyance, shall become vested with all the rights, powers,
         trusts and duties of the retiring Trustee; but, on the request of the
         Company or the successor Trustee, such retiring Trustee shall, upon
         payment of its charges, execute and deliver an instrument transferring
         to such successor Trustee all the rights, powers and trusts of the
         retiring Trustee and shall duly assign, transfer and deliver to such
         successor Trustee all property and money held by such retiring Trustee
         hereunder.

                 (b)      In case of the appointment hereunder of a successor
         Trustee with respect to the Securities of one or more (but not all)
         series, the Company, the retiring Trustee and each successor Trustee
         with respect to the Securities of one or more series shall execute and
         deliver an indenture supplemental hereto wherein each successor
         Trustee shall accept such appointment and which (1) shall contain such
         provisions as shall be necessary or desirable to transfer and confirm
         to, and to vest in, each successor Trustee all the rights, powers,
         trusts and duties of the retiring Trustee with respect to the
         Securities of that or those series to which the appointment of such
         successor Trustee relates, (2) if the retiring Trustee is not retiring
         with respect to all Securities, shall contain such provisions as shall
         be deemed necessary or desirable to confirm that all the rights,
         powers, trusts and duties of the retiring Trustee with respect to the
         Securities of that or those series as to which the retiring Trustee is
         not retiring shall continue to be vested in the retiring Trustee and
         (3) shall add to or change any of the provisions of this Indenture as
         shall be necessary to provide for or facilitate the administration of
         the trusts hereunder by more than one Trustee, it being understood
         that nothing herein or in such supplemental indenture shall constitute
         such Trustees co-trustees of the same trust and that each such Trustee
         shall be trustee of a trust or trusts hereunder separate and apart
         from any trust or trusts hereunder administered by any other such
         Trustee; and upon the execution and delivery of such supplemental
         indenture, the resignation or removal of the retiring Trustee shall
         become effective to the extent provided therein and each such
         successor Trustee, without any further act, deed or conveyance, shall
         become vested with all the rights, powers, trusts and duties of the
         retiring Trustee with respect to the Securities of that or those
         series to which the appointment of such successor Trustee relates;
         but, on request of the Company or any successor Trustee, such retiring
         Trustee shall duly assign, transfer and deliver to such successor
         Trustee all property and money held by such retiring Trustee hereunder
         with respect to the Securities of that or those series to which the
         appointment of such successor Trustee relates.

                 (c)      Upon request of any such successor Trustee, the
         Company shall execute any and all instruments for more fully and
         certainly vesting in and confirming to such successor Trustee all such
         rights, powers and trusts referred to in paragraph (a) or (b) of this
         Section, as the case may be.





                                       45
<PAGE>   54
                 (d)      No successor Trustee shall accept its appointment
         unless at the time of such acceptance such successor Trustee shall be
         qualified and eligible under this Article.

SECTION 612.  Merger, Conversion, Consolidation or Succession to Business.

                 Any corporation into which the Trustee may be merged or
converted or with which it may be consolidated, or any corporation resulting
from any merger, conversion or consolidation to which the Trustee shall be a
party, or any corporation succeeding to all or substantially all the corporate
trust business of the Trustee, shall be the successor of the Trustee hereunder,
provided such corporation shall be otherwise qualified and eligible under this
Article, without the execution or filing of any paper or any further act on the
part of any of the parties hereto.  In case any Securities shall have been
authenticated, but not delivered, by the Trustee then in office, any successor
by merger, conversion or consolidation to such authenticating Trustee may adopt
such authentication and deliver the Securities so authenticated with the same
effect as if such successor Trustee had itself authenticated such Securities.

SECTION 613.  Preferential Collection of Claims Against Company.

                 The Trustee shall comply with Section 311(a) of the Trust
Indenture Act, excluding any creditor relationship described in Section 311(b)
of the Trust Indenture Act.  A Trustee who has resigned or been removed shall
be subject to Section 311(a) of the Trust Indenture Act to the extent indicated
therein.

SECTION 614.  Appointment of Authenticating Agent.

                 The Trustee may appoint an Authenticating Agent or Agents
which shall be authorized to act on behalf of the Trustee to authenticate
Securities issued upon original issue and upon exchange, registration of
transfer or partial redemption or pursuant to Section 306, and Securities so
authenticated shall be entitled to the benefits of this Indenture and shall be
valid and obligatory for all purposes as if authenticated by the Trustee
hereunder.  Wherever reference is made in this Indenture to the authentication
and delivery of Securities by the Trustee or the Trustee's certificate of
authentication, such reference shall be deemed to include authentication and
delivery on behalf of the Trustee by an Authenticating Agent and a certificate
of authentication executed on behalf of the Trustee by an Authenticating Agent.
Each Authenticating Agent shall be acceptable to the Company and shall at all
times be a corporation organized and doing business under the laws of the
United States of America, any State thereof or the District of Columbia having
a combined capital and surplus of not less than $50,000,000 or equivalent
amount expressed in a foreign currency and subject to supervision or
examination by Federal or State (or District of Columbia) authority or
authority of such country.  If such Authenticating Agent publishes reports of
condition at least annually, pursuant to law or to the requirements of said
supervising or examining authority, then for the purposes of this Section, the
combined capital and surplus of such Authenticating Agent shall be deemed to be
its combined capital and surplus as set forth in its most recent report of
condition so published.  If at any time an Authenticating Agent shall cease to
be eligible in accordance with the provisions of this Section, such
Authenticating Agent shall resign immediately in the manner and with the effect
specified in this Section.





                                       46
<PAGE>   55
                 Any corporation into which an Authenticating Agent may be
merged or converted or with which it may be consolidated, or any corporation
resulting from any merger, conversion or consolidation to which such
Authenticating Agent shall be a party, or any corporation succeeding to the
corporate agency or corporate trust business of an Authenticating Agent, shall
continue to be an Authenticating Agent, provided such corporation shall be
otherwise eligible under this Section, without the execution or filing of any
paper or any further act on the part of the Trustee or the Authenticating
Agent.

                 An Authenticating Agent may resign at any time by giving
written notice thereof to the Trustee and to the Company.  The Trustee may at
any time terminate the agency of an Authenticating Agent by giving written
notice thereof to such Authenticating Agent and to the Company.  Upon receiving
such a notice of resignation or upon such a termination, or in case at any time
such Authenticating Agent shall cease to be eligible in accordance with the
provisions of this Section, the Trustee may appoint a successor Authenticating
Agent which shall be acceptable to the Company and shall mail written notice of
such appointment by first-class mail, postage prepaid, to all Holders as their
names and addresses appear in the Security Register.  Any successor
Authenticating Agent upon acceptance of its appointment hereunder shall become
vested with all the rights, powers and duties of its predecessor hereunder,
with like effect as if originally named as an Authenticating Agent.  No
successor Authenticating Agent shall be appointed unless eligible under the
provisions of this Section.

                 The Trustee agrees to pay to each Authenticating Agent from
time to time reasonable compensation for its services under this Section, and
the Trustee shall be entitled to be reimbursed for such payments, subject to
the provisions of Section 607.

                 If an appointment is made pursuant to this Section, the
Securities may have endorsed thereon, in addition to the Trustee's certificate
of authentication, an alternate certificate of authentication in the following
form:

                 "This is one of the Securities of the series designated
therein referred to in the within-mentioned Indenture.


                                                                               ,
                                       ----------------------------------------
                                                       as Trustee


                                       By                                      ,
                                          -------------------------------------
                                                   as Authenticating Agent


                                       By
                                          --------------------------------------
                                                   Authorized Signatory".




                                       47
<PAGE>   56
                 Notwithstanding any provision of this Section 614 to the
contrary, if at any time any Authenticating Agent appointed hereunder with
respect to any series of Securities shall not also be acting as the Security
Registrar hereunder with respect to any series of Securities, then, in addition
to all other duties of an Authenticating Agent hereunder, such Authenticating
Agent shall also be obligated:  (i) to furnish to the Security Registrar
promptly all information necessary to enable the Security Registrar to maintain
at all times an accurate and current Security Register; and (ii) prior to
authenticating any Security denominated in a foreign currency, to ascertain
from the Company the units of such foreign currency that are required to be
determined by the Company pursuant to Section 302.

                                 ARTICLE SEVEN

               HOLDER'S LISTS AND REPORTS BY TRUSTEE AND COMPANY

SECTION 701.  Company to Furnish Trustee Names and Addresses of Holders.

                 With respect to each series of Securities, the Company will
furnish or cause to be furnished to the Trustee:

                 (a)      semi-annually, not more than 15 days after each
         Regular Record Date relating to that series (or, if there is no
         Regular Record Date relating to that series, on January 1 and July 1),
         a list, in such form as the Trustee may reasonably require, of the
         names and addresses of the Holders of that series as of such dates,
         and

                 (b)      at such other times as the Trustee may request in
         writing, within 30 days after the receipt by the Company of any such
         request, a list of similar form and content, such list to be dated as
         of a date not more than 15 days prior to the time such list is
         furnished; provided, that so long as the Trustee is the Security
         Registrar, the Company shall not be required to furnish or cause to be
         furnished such a list to the Trustee.  The Company shall otherwise
         comply with Section 310(a) of the Trust Indenture Act.

SECTION 702.  Preservation of Information; Communications to Holders.

                 (a)      The Trustee shall preserve, in as current a form as
         is reasonably practicable, the names and addresses of Holders of each
         series contained in the most recent list furnished to the Trustee as
         provided in Section 701 and the names and addresses of Holders of each
         series received by the Trustee in its capacity as Security Registrar,
         if applicable.  The Trustee may destroy any list furnished to it as
         provided in Section 701 upon receipt of a new list so furnished.  The
         Trustee shall otherwise comply with Section 310(a) of the Trust
         Indenture Act.

                 (b)      Holders of Securities may communicate pursuant to
         Section 312(b) the Trust Indenture Act with other Holders with respect
         to their rights under this Indenture or under the Securities.





                                       48
<PAGE>   57
                 (c)      Every Holder of Securities, by receiving and holding
         the same, agrees with the Company and the Trustee that neither the
         Company nor the Trustee nor any agent of either of them shall be held
         accountable by reason of the disclosure of any such information as to
         the names and addresses of the Holders in accordance with Section
         702(b), regardless of the source from which such information was
         derived, and that the Trustee shall not be held accountable by reason
         of mailing any material pursuant to a request made under Section
         702(b).  The Company, the Trustee, the Security Registrar and any
         other Person shall have the protection of Section 312(c) of the Trust
         Indenture Act.

SECTION 703.  Reports by Trustee.

                 (a)      Within 60 days after May 15 of each year after the
         execution of this Indenture, the Trustee shall transmit by mail to
         Holders a brief report dated as of such May 15 that complies with
         Section 313(a) of the Trust Indenture Act.

                 (b)      The Trustee shall comply with Section 313(b) of the
         Trust Indenture Act.

                 (c)      Reports pursuant to this Section shall be transmitted
         by mail as required by Sections 313(c) and 313(d) of the Trust
         Indenture Act:

                          (1)     to all Holders of Securities, as the names
                 and addresses of such Holders appear in the Security Register;

                          (2)     to such Holders of Securities as have, within
                 the two years preceding such transmissions, filed their names
                 and addresses with the Trustee for that purpose; and

                          (3)     except in the case of reports pursuant to
                 Subsection (b) of this Section, to each Holder of a Security
                 whose name and address is preserved at the time by the
                 Trustee, as provided in Section 702(a).

                 (d)      A copy of each report pursuant to Subsection (a) or
         (b) of this Section 703 shall, at the time of its transmission to
         Holders, be filed by the Trustee with each stock exchange upon which
         any Securities are listed, with the Commission and with the Company.
         The Company will notify the Trustee when any Securities are listed on
         any stock exchange.

SECTION 704.  Reports by Company.

                 The Company shall file with the Trustee, within 15 days after
the Company is required to file the same with the Commission, copies of the
annual reports and of the information, documents and other reports (or copies
of such portions of any of the foregoing as the Commission may from time to
time by rules and regulations prescribe) which the Company may be required to
file with the Commission pursuant to Section 13 or Section 15(d) of the
Securities Exchange Act of 1934, as amended, and shall otherwise comply with
Section 314(a) of the Trust Indenture Act.





                                       49
<PAGE>   58
                                 ARTICLE EIGHT

              CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

SECTION 801.  Company May Consolidate, Etc., Only on Certain Terms.

                 The Company shall not consolidate with or merge into any other
Person or convey, transfer or lease its properties and assets substantially as
an entirety to any Person, unless:

                 (1)      the Person formed by such consolidation or into which
         the Company is merged or the Person which acquires by conveyance or
         transfer, or which leases, the properties and assets of the Company
         substantially as an entirety shall be a corporation, partnership or
         trust and shall expressly assume, by an indenture supplemental hereto,
         executed and delivered to the Trustee, in form satisfactory to the
         Trustee, the due and punctual payment of the principal of (and
         premium, if any) and interest on and any Additional Amounts with
         respect to all the Securities and the performance of every covenant of
         this Indenture on the part of the Company to be performed or observed;

                 (2)      immediately after giving effect to such transaction,
         no Event of Default, and no event, act or condition which, after
         notice or lapse of time or both, would become an Event of Default,
         shall have happened and be continuing; and

                 (3)      the Company shall have delivered to the Trustee an
         Officers' Certificate and an Opinion of Counsel, each stating that
         such consolidation, merger, conveyance, transfer or lease and, if a
         supplemental indenture is required in connection with such
         transaction, such supplemental indenture comply with this Article and
         that all conditions precedent herein provided for relating to such
         transaction have been complied with.

SECTION 802.  Successor Person Substituted.

                 Upon any consolidation by the Company with or merger by the
Company into any other Person or any conveyance, transfer or lease of the
properties and assets of the Company substantially as an entirety in accordance
with Section 801, the successor Person formed by such consolidation or into
which the Company is merged or to which such conveyance, transfer or lease is
made shall succeed to, and be substituted for, and may exercise every right and
power of, the Company under this Indenture with the same effect as if such
successor Person had been named as the Company herein, and thereafter, except
in the case of such lease, the predecessor Person shall be relieved of all
obligations and covenants under this Indenture and the Securities.





                                       50
<PAGE>   59
                                  ARTICLE NINE

                            SUPPLEMENTAL INDENTURES

SECTION 901.  Supplemental Indentures Without Consent of Holders.

                 Without the consent of any Holders, the Company, when
authorized by a Board Resolution, and the Trustee, at any time and from time to
time, may enter into one or more indentures supplemental hereto, in form
satisfactory to the Trustee, for any of the following purposes:

                 (1)      to evidence the succession of another Person to the
         Company and the assumption by any such successor of the covenants of
         the Company herein and in the Securities; or

                 (2)      to add to the covenants of the Company for the
         benefit of the Holders of all or any series of Securities (and if such
         covenants are to be for the benefit of less than all series of
         Securities, stating that such covenants are expressly being included
         solely for the benefit of such series), to convey, transfer, assign,
         mortgage or pledge any property to or with the Trustee or otherwise
         secure any series of the Securities or to surrender any right or power
         herein conferred upon the Company; or

                 (3)      to add any additional Events of Default with respect
         to all or any series of the Securities (and, if such Event of Default
         is applicable to less than all series of Securities, specifying the
         series to which such Event of Default is applicable); or

                 (4)      to change or eliminate any of the provisions of this
         Indenture, provided that any such change or elimination shall become
         effective only when there is no Security Outstanding of any series
         created prior to the execution of such supplemental indenture which is
         adversely affected by such change in or elimination of such provision;
         or

                 (5)      to establish the form or terms of Securities of any
         series as permitted by Sections 201 and 301; or

                 (6)      to supplement any of the provisions of this Indenture
         to such extent as shall be necessary to permit or facilitate the
         defeasance and discharge of any series of Securities pursuant to
         Section 401; provided, however, that any such action shall not
         adversely affect the interest of the Holders of Securities of such
         series or any other series of Securities in any material respect; or

                 (7)      to evidence and provide for the acceptance of
         appointment hereunder by a successor Trustee with respect to the
         Securities of one or more series and to add to or change any of the
         provisions of this Indenture as shall be necessary to provide for or
         facilitate the administration of the trusts hereunder by more than one
         Trustee, pursuant to the requirements of Section 611(b); or





                                       51
<PAGE>   60
                 (8)      to cure any ambiguity, to correct or supplement any
         provision herein which may be defective or inconsistent with any other
         provision herein, or to make any other provisions with respect to
         matters or questions arising under this Indenture, provided such other
         provisions as may be made shall not adversely affect the interests of
         the Holders of Securities of any series in any material respect.

SECTION 902.  Supplemental Indentures With Consent of Holders.

                 With the consent of the Holders of a majority in principal
amount of the Outstanding Securities of all series affected by such
supplemental indenture (acting as one class), by Act of said Holders delivered
to the Company and the Trustee, the Company, when authorized by a Board
Resolution, and the Trustee may enter into an indenture or indentures
supplemental hereto for the purpose of adding any provisions to or changing in
any manner or eliminating any of the provisions of this Indenture or of
modifying in any manner the rights of the Holders of Securities of such series
under this Indenture; provided, however, that no such supplemental indenture
shall, without the consent of the Holder of each Outstanding Security affected
thereby,

                 (1)      change the Stated Maturity of the principal of, or
         any installment of principal of or interest on, any Security, or
         reduce the principal amount thereof or the rate of interest thereon,
         any Additional Amounts with respect thereto or any premium payable
         upon the redemption thereof, or change any obligation of the Company
         to pay Additional Amounts (except as contemplated by Section 801(1)
         and permitted by Section 901(1)), or reduce the amount of the
         principal of an Original Issue Discount Security that would be due and
         payable upon a declaration of acceleration of the Maturity thereof
         pursuant to Section 502, or change any Place of Payment where, or the
         coin or currency or currencies (including composite currencies) in
         which, any Security or any premium or any interest thereon or
         Additional Amounts with respect thereto is payable, or impair the
         right to institute suit for the enforcement of any such payment on or
         after the Stated Maturity thereof (or, in the case of redemption, on
         or after the Redemption Date) or modify the provisions of this
         Indenture with respect to the subordination of any Security in a
         manner adverse to the Holder thereof, or

                 (2)      reduce the percentage in principal amount of
         Outstanding Securities, the consent of whose Holders is required for
         any such supplemental indenture, or the consent of whose Holders is
         required for any waiver (of compliance with certain provisions of this
         Indenture or certain defaults hereunder and their consequences)
         provided for in this Indenture, or

                 (3)      modify any of the provisions of this Section, Section
         512 or Section 1006, except to increase any such percentage or to
         provide with respect to any particular series the right to condition
         the effectiveness of any supplemental indenture as to that series on
         the consent of the Holders of a specified percentage of the aggregate
         principal amount of Outstanding Securities of such series (which
         provision may be made pursuant to Section 301 without the consent of
         any Holder) or to provide that certain other provisions of this
         Indenture cannot be modified or waived without the consent of the
         Holder of each Outstanding Security affected thereby, provided,
         however, that this clause shall not be





                                       52
<PAGE>   61
         deemed to require the consent of any Holder with respect to changes in
         the references to "the Trustee" and concomitant changes in this
         Section and Section 1006, or the deletion of this proviso, in
         accordance with the requirements of Sections 611(b) and 901(7).

A supplemental indenture which changes or eliminates any covenant or other
provision of this Indenture which has expressly been included solely for the
benefit of one or more particular series of Securities, or which modifies the
rights of the Holders of Securities of such series with respect to such
covenant or other provision, shall be deemed not to affect the rights under
this Indenture of the Holders of Securities of any other series.

                 It shall not be necessary for any Act of Holders under this
Section to approve the particular form of any proposed supplemental indenture,
but it shall be sufficient if such Act shall approve the substance thereof.

SECTION 903.  Execution of Supplemental Indentures.

                 In executing, or accepting the additional trusts created by,
any supplemental indenture permitted by this Article or the modifications
thereby of the trusts created by this Indenture, the Trustee shall be entitled
to receive, and (subject to Section 601) shall be fully protected in relying
upon, an Opinion of Counsel stating that the execution of such supplemental
indenture is authorized or permitted by this Indenture.  The Trustee may, but
shall not be obligated to, enter into any such supplemental indenture which
affects the Trustee's own rights, duties, immunities or liabilities under this
Indenture or otherwise.

SECTION 904.  Effect of Supplemental Indentures.

                 Upon the execution of any supplemental indenture under this
Article, this Indenture shall be modified in accordance therewith, and such
supplemental indenture shall form a part of this Indenture for all purposes;
and every Holder of Securities theretofore or thereafter authenticated and
delivered hereunder shall be bound thereby.

SECTION 905.  Conformity With Trust Indenture Act.

                 Every supplemental indenture executed pursuant to this Article
shall conform to the requirements of the Trust Indenture Act as then in effect.

SECTION 906.  Reference in Securities to Supplemental Indentures.

                 Securities of any series authenticated and delivered after the
execution of any supplemental indenture pursuant to this Article may, and shall
if required by the Trustee, bear a notation in form approved by the Trustee as
to any matter provided for in such supplemental indenture.  If the Company
shall so determine, new Securities of any series so modified as to conform, in
the opinion of the Trustee and the Company, to any such supplemental indenture
may be prepared and executed by the Company and authenticated and delivered by
the Trustee in exchange for Outstanding Securities of such series.





                                       53
<PAGE>   62
                                  ARTICLE TEN

                                   COVENANTS

SECTION 1001.  Payment of Principal, Premium and Interest.

                 The Company covenants and agrees for the benefit of each
series of Securities that it will duly and punctually pay the principal of (and
premium, if any), interest on and any Additional Amounts with respect to the
Securities of that series in accordance with the terms of the Securities and
this Indenture.

SECTION 1002.  Maintenance of Office or Agency.

                 The Company will maintain in each Place of Payment for any
series of Securities an office or agency where Securities of that series may be
presented or surrendered for payment, where Securities of that series may be
surrendered for registration of transfer or exchange and where notices and
demands to or upon the Company in respect of the Securities of that series and
this Indenture may be served.  The Company will give prompt written notice to
the Trustee of the location, and any change in the location, of such office or
agency.  If at any time the Company shall fail to maintain any such required
office or agency or shall fail to furnish the Trustee with the address thereof,
such presentations, surrenders, notices and demands may be made or served at
the Corporate Trust Office of the Trustee.

                 The Company may also from time to time designate one or more
other offices or agencies where the Securities of one or more series may be
presented or surrendered for any or all such purposes and may from time to time
rescind such designations; provided, however, that no such designation or
rescission shall in any manner relieve the Company of its obligation to
maintain an office or agency in each Place of Payment for Securities of any
series for such purposes.  The Company will give prompt written notice to the
Trustee of any such designation or rescission and of any change in the location
of any such other office or agency.

SECTION 1003.  Money for Securities Payments to be Held in Trust.

                 If the Company shall at any time act as its own Paying Agent
with respect to any series of Securities, it will, on or before each due date
of the principal of (and premium, if any) or interest on or any Additional
Amounts with respect to any of the Securities of that series, segregate and
hold in trust for the benefit of the Persons entitled thereto a sum sufficient
to pay the principal (and premium, if any) or interest or any Additional
Amounts so becoming due until such sums shall be paid to such Persons or
otherwise disposed of as herein provided and will promptly notify the Trustee
of its action or failure so to act.

                 Whenever the Company shall have one or more Paying Agents for
any series of Securities, the Company will, on or before each due date of the
principal of (and premium, if any) or interest on any Securities of that
series, deposit with a Paying Agent a sum sufficient to pay the principal (and
premium, if any) or interest so becoming due, such sum to be held in trust for
the





                                       54
<PAGE>   63
benefit of the Persons entitled to such principal, premium or interest, and
(unless such Paying Agent is the Trustee) the Company will promptly notify the
Trustee of its action or failure so to act.

                 The Company will cause each Paying Agent for any series of
Securities other than the Trustee to execute and deliver to the Trustee an
instrument in which such Paying Agent shall agree with the Trustee, subject to
the provisions of this Section, that such Paying Agent will:

                 (1)      hold all sums held by it for the payment of the
         principal of (and premium, if any), interest on or any Additional
         Amounts with respect to Securities of that series in trust for the
         benefit of the Persons entitled thereto until such sums shall be paid
         to such Persons or otherwise disposed of as herein provided;

                 (2)      give the Trustee notice of any default by the Company
         (or any other obligor upon the Securities of that series) in the
         making of any payment of principal (and premium, if any), interest on
         or any Additional Amounts with respect to the Securities of that
         series; and

                 (3)      at any time during the continuance of any such
         default, upon the written request of the Trustee, forthwith pay to the
         Trustee all sums so held in trust by such Paying Agent.

                 The Company may at any time, for the purpose of obtaining the
satisfaction and discharge of this Indenture or for any other purpose, pay, or
by Company Order direct any Paying Agent to pay, to the Trustee all sums held
in trust by the Company or such Paying Agent, such sums to be held by the
Trustee upon the same trusts as those upon which sums were held by the Company
or such Paying Agent; and, upon such payment by any Paying Agent to the
Trustee, such Paying Agent shall be released from all further liability with
respect to such money.

                 Any money deposited with the Trustee or any Paying Agent, or
then held by the Company, in trust for the payment of the principal of (and
premium, if any) or interest on or any Additional Amounts with respect to any
Security of any series and remaining unclaimed for three years after such
principal (and premium, if any) or interest or Additional Amounts have become
due and payable shall, unless otherwise required by mandatory provisions of
applicable escheat, or abandoned or unclaimed property law, be paid to the
Company on Company Request, or (if then held by the Company) shall be
discharged from such trust; and the Holder of such Security shall thereafter,
as an unsecured general creditor, look only to the Company for payment thereof,
and all liability of the Trustee or such Paying Agent with respect to such
trust money, and all liability of the Company as trustee thereof, shall
thereupon cease; provided, however, that the Trustee or such Paying Agent,
before being required to make any such repayment, may at the expense of the
Company cause to be published once, in an Authorized Newspaper in The Borough
of Manhattan, The City of New York and in such other Authorized Newspapers as
the Trustee shall deem appropriate, notice that such money remains unclaimed
and that, after a date specified therein, which shall not be less than 30 days
from the date of such publication, any unclaimed balance of such money then
remaining will, unless otherwise required by mandatory provisions of applicable
escheat, or abandoned or unclaimed property law, be repaid to the Company.





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<PAGE>   64
SECTION 1004.  Existence.

                 Subject to Article Eight, the Company will do or cause to be
done all things necessary to preserve and keep in full force and effect its
corporate existence.

SECTION 1005.  Statement by Officers as to Default.

                 The Company will deliver to the Trustee, within 120 days after
the end of each fiscal year of the Company ending after the date hereof so long
as any Security is outstanding hereunder, an Officers' Certificate, complying
with Section 314(a) of the Trust Indenture Act, stating that a review of the
activities of the Company during such year and of performance under this
Indenture has been made under the supervision of the signers thereof and
whether or not to the best of their knowledge, based upon such review, the
Company is in default in the performance, observance or fulfillment of any of
its covenants and other obligations under this Indenture, and if the Company
shall be in default, specifying each such default known to them and the nature
and status thereof.  One of the officers signing the Officers' Certificate
delivered pursuant to this Section 1005 shall be the principal executive,
financial or accounting officer of the Company.

                 For purposes of this Section, such compliance shall be
determined without regard to any period of grace or requirement of notice
provided under this Indenture.

SECTION 1006.  Waiver of Certain Covenants.

                 The Company may omit in any particular instance to comply with
any covenant or condition set forth in Section 1004, or any covenant added for
the benefit of any series of Securities as contemplated by Section 301 (unless
otherwise specified pursuant to Section 301) if before or after the time for
such compliance the Holders of a majority in principal amount of the
Outstanding Securities of all series affected by such omission (acting as one
class) shall, by Act of such Holders, either waive such compliance in such
instance or generally waive compliance with such covenant or condition, but no
such waiver shall extend to or affect such covenant or condition except to the
extent so expressly waived, and, until such waiver shall become effective, the
obligations of the Company and the duties of the Trustee in respect of any such
covenant or condition shall remain in full force and effect.

SECTION 1007.  Additional Amounts.

                 If the Securities of a series expressly provide for the
payment of Additional Amounts, the Company will pay to the Holder of any
Security of such series Additional Amounts as expressly provided therein.
Whenever in this Indenture there is mentioned, in any context, the payment of
the principal of or any premium or interest on, or in respect of, any Security
of any series or the net proceeds received from the sale or exchange of any
Security of any series, such mention shall be deemed to include mention of the
payment of Additional Amounts provided for in this Section to the extent that,
in such context, Additional Amounts are, were or would be payable in respect
thereof pursuant to the provisions of this Section and express mention of the
payment of Additional





                                       56
<PAGE>   65
Amounts (if applicable) in any provisions hereof shall not be construed as
excluding Additional Amounts in those provisions hereof where such express
mention is not made.

                 If the Securities of a series provide for the payment of
Additional Amounts, at least 10 days prior to the first Interest Payment Date
with respect to that series of Securities (or if the Securities of that series
will not bear interest prior to Maturity, the first day on which a payment of
principal and any premium is made), and at least 10 days prior to each date of
payment of principal and any premium or interest if there has been any change
with respect to the matters set forth in the below-mentioned Officers'
Certificate, the Company shall furnish the Trustee and the Company's principal
Paying Agent or Paying Agents, if other than the Trustee, with an Officers'
Certificate instructing the Trustee and such Paying Agent or Paying Agents
whether such payment of principal of and any premium or interest on the
Securities of that series shall be made to Holders of Securities of that series
who are United States Aliens without withholding for or on account of any tax,
assessment or other governmental charge described in the Securities of that
series.  If any such withholding shall be required, then such Officers'
Certificate shall specify by country the amount, if any, required to be
withheld on such payments to such Holders of Securities and the Company will
pay to such Paying Agent the Additional Amounts required by this Section.  The
Company covenants to indemnify the Trustee and any Paying Agent for, and to
hold them harmless against any loss, liability or expense reasonably incurred
without negligence or bad faith on their part arising out of or in connection
with actions taken or omitted by any of them in reliance on any Officers'
Certificate furnished pursuant to this Section 1007.

                                 ARTICLE ELEVEN

                            REDEMPTION OF SECURITIES

SECTION 1101.  Applicability of Article.

                 Securities of any series which are redeemable before their
Stated Maturity shall be redeemable in accordance with their terms and (except
as otherwise specified as contemplated by Section 301 for Securities of any
series) in accordance with this Article.

SECTION 1102.  Election to Redeem; Notice to Trustee.

                 Unless otherwise provided with respect to the Securities of a
series as contemplated by Section 301, the election of the Company to redeem
any Securities shall be evidenced by a Board Resolution.  In case of any
redemption at the election of the Company of less than all the Securities of
any series, the Company shall, a reasonable period prior to the Redemption Date
fixed by the Company (unless a shorter notice shall be satisfactory to the
Trustee), notify the Trustee of such Redemption Date and of the principal
amount of Securities of such series to be redeemed.  In the case of any
redemption of Securities prior to the expiration of any restriction on such
redemption provided in the terms of such Securities or elsewhere in this
Indenture, the Company shall furnish the Trustee with an Officers' Certificate
evidencing compliance with such restriction.





                                       57
<PAGE>   66
SECTION 1103.  Selection by Trustee of Securities to be Redeemed.

                 If less than all the Securities of any series are to be
redeemed, the particular Securities to be redeemed shall be selected not more
than 60 days prior to the Redemption Date by the Trustee, from the Outstanding
Securities of such series not previously called for redemption, by such method
as the Trustee shall deem fair and appropriate and which may provide for the
selection for redemption of portions (equal to the minimum authorized
denomination for Securities of that series or any integral multiple thereof) of
the principal amount of Securities of such series of a denomination larger than
the minimum authorized denomination for Securities of that series or of the
principal amount of global Securities of such series.

                 The Trustee shall promptly notify the Company and the Security
Registrar in writing of the Securities selected for redemption and, in the case
of any Securities selected for partial redemption, the principal amount thereof
to be redeemed.

                 For all purposes of this Indenture, unless the context
otherwise requires, all provisions relating to the redemption of Securities
shall relate, in the case of any Securities redeemed or to be redeemed only in
part, to the portion of the principal amount of such Securities which has been
or is to be redeemed.

SECTION 1104.  Notice of Redemption.

                 Notice of redemption shall be given in the manner provided in
Section 107 to each Holder of Securities to be redeemed not less than 30 nor
more than 60 days prior to the Redemption Date.

                 All notices of redemption shall state:

                 (1)      the Redemption Date,

                 (2)      the Redemption Price,

                 (3)      if less than all the Outstanding Securities of any
         series are to be redeemed, the identification (and, in the case of
         partial redemption, the principal amounts) of the particular
         Securities to be redeemed,

                 (4)      that on the Redemption Date the Redemption Price will
         become due and payable upon each such Security to be redeemed and, if
         applicable, that interest thereon will cease to accrue on and after
         said date,

                 (5)      the place or places where such Securities are to be
         surrendered for payment of the Redemption Price,

                 (6)      that the redemption is for a sinking fund, if such is
         the case, and





                                       58
<PAGE>   67
                 (7)      the "CUSIP" number, if applicable.

         A notice of redemption as contemplated by Section 107 need not
identify particular Securities to be redeemed.  Notice of redemption of
Securities to be redeemed at the election of the Company shall be given by the
Company or, at the Company's request, by the Trustee in the name and at the
expense of the Company.

SECTION 1105.  Deposit of Redemption Price.

                 On or before 10:00 a.m., Houston, Texas time, on any
Redemption Date, the Company shall deposit with the Trustee or with a Paying
Agent (or, if the Company is acting as its own Paying Agent, segregate and hold
in trust as provided in Section 1003) an amount of money sufficient to pay the
Redemption Price of, and (except if the Redemption Date shall be an Interest
Payment Date) accrued interest on, and any Additional Amounts with respect to,
all the Securities which are to be redeemed on that date.

SECTION 1106.  Securities Payable on Redemption Date.

                 Notice of redemption having been given as aforesaid, the
Securities so to be redeemed shall, on the Redemption Date, become due and
payable at the Redemption Price therein specified, and from and after such date
(unless the Company shall default in the payment of the Redemption Price and
accrued interest) such Securities shall cease to bear interest.  Upon surrender
of any such Security for redemption in accordance with said notice, such
Security shall be paid by the Company at the Redemption Price, together with
accrued interest (and any Additional Amounts) to the Redemption Date; provided,
however, that installments of interest whose Stated Maturity is on or prior to
the Redemption Date shall be payable to the Holders of such Securities, or one
or more Predecessor Securities, registered as such at the close of business on
the relevant Record Dates according to their terms and the provisions of
Section 307.

                 If any Security called for redemption shall not be so paid
upon surrender thereof for redemption, the principal (and premium, if any)
shall, until paid, bear interest from the Redemption Date at the rate
prescribed therefor in the Security or, in the case of Original Issue Discount
Securities, the Securities' Yield to Maturity.

SECTION 1107.  Securities Redeemed in Part.

                 Any Security which is to be redeemed only in part shall be
surrendered at a Place of Payment therefor (with, if the Company or the Trustee
so requires, due endorsement by, or a written instrument of transfer in form
satisfactory to the Company and the Trustee duly executed by, the Holder
thereof or his attorney duly authorized in writing), and the Company shall
execute, and the Trustee shall authenticate and deliver to the Holder of such
Security without service charge, a new Security or Securities of the same
series and Stated Maturity, of any authorized denomination as requested by such
Holder, in aggregate principal amount equal to and in exchange for the
unredeemed portion of the principal of the Security so surrendered.





                                       59
<PAGE>   68
SECTION 1108.  Purchase of Securities.

                 Unless otherwise specified as contemplated by Section 301, the
Company and any Affiliate of the Company may at any time purchase or otherwise
acquire Securities in the open market or by private agreement.  Such
acquisition shall not operate as or be deemed for any purpose to be a
redemption of the indebtedness represented by such Securities.  Any Securities
purchased or acquired by the Company may be delivered to the Trustee and, upon
such delivery, the indebtedness represented thereby shall be deemed to be
satisfied.  Section 309 shall apply to all Securities so delivered.

                                 ARTICLE TWELVE

                                 SINKING FUNDS

SECTION 1201.  Applicability of Article.

                 The provisions of this Article shall be applicable to any
sinking fund for the retirement of Securities of a series except as otherwise
specified as contemplated by Section 301 for Securities of such series.

                 The minimum amount of any sinking fund payment provided for by
the terms of Securities of any series is herein referred to as a "mandatory
sinking fund payment", and any payment in excess of such minimum amount
provided for by the terms of Securities of any series is herein referred to as
an "optional sinking fund payment".  Unless otherwise provided by the terms of
Securities of any series, the cash amount of any sinking fund payment may be
subject to reduction as provided in Section 1202.  Each sinking fund payment
shall be applied to the redemption of Securities of any series as provided for
by the terms of Securities of such series.

SECTION 1202.  Satisfaction of Sinking Fund Payments with Securities.

                 The Company (1) may deliver Outstanding Securities of a series
(other than any previously called for redemption), and (2) may apply as a
credit Securities of a series which have been redeemed either at the election
of the Company pursuant to the terms of such Securities or through the
application of permitted optional sinking fund payments pursuant to the terms
of such Securities, in each case in satisfaction of all or any part of any
sinking fund payment with respect to the Securities of such series required to
be made pursuant to the terms of such Securities as provided for by the terms
of such series; provided that such Securities have not been previously so
credited.  Such Securities shall be received and credited for such purpose by
the Trustee at the Redemption Price specified in such Securities for redemption
through operation of the sinking fund and the amount of such sinking payment
shall be reduced accordingly.

SECTION 1203.  Redemption of Securities for Sinking Fund.

                 Not less than 45 days prior (unless a shorter period shall be
satisfactory to the Trustee) to each sinking fund payment date for any series
of Securities, the Company will deliver





                                       60
<PAGE>   69
to the Trustee an Officers' Certificate specifying the amount of the next
ensuing sinking fund payment for that series pursuant to the terms of that
series, the portion thereof, if any, which is to be satisfied by payment of
cash and the portion thereof, if any, which is to be satisfied by delivery of
or by crediting Securities of that series pursuant to Section 1202 and will
also deliver to the Trustee any Securities to be so delivered.  Not less than
30 days before each such sinking fund payment date the Trustee shall select the
Securities to be redeemed upon such sinking fund payment date in the manner
specified in Section 1103 and cause notice of the redemption thereof to be
given in the name of and at the expense of the Company in the manner provided
in Section 1104.  Such notice having been duly given, the redemption of such
Securities shall be made upon the terms and in the manner stated in Sections
1106 and 1107.

                                ARTICLE THIRTEEN

                                 SUBORDINATION

SECTION 1301.  Securities Subordinated to Senior Indebtedness.

                 The Company and each Holder of a Security, by his acceptance
thereof, agree that (a) the payment of the principal of, premium (if any) and
interest on and any Additional Amounts with respect to each and all the
Securities and (b) any other payment in respect of the Securities, including on
account of the acquisition or redemption of Securities by the Company, is
subordinated, to the extent and in the manner provided in this Article
Thirteen, to the prior payment in full of all Senior Indebtedness of the
Company, whether outstanding at the date of this Indenture or thereafter
created, incurred, assumed or guaranteed, and that these subordination
provisions are for the benefit of the holders of Senior Indebtedness.

                 This Article Thirteen shall constitute a continuing offer to
all Persons who, in reliance upon such provisions, become holders of, or
continue to hold, Senior Indebtedness, and such provisions are made for the
benefit of the holders of Senior Indebtedness, and such holders are made
obligees hereunder and any one or more of them may enforce such provisions.

SECTION 1302.  No Payment on Securities in Certain Circumstances.

                 (a)  No payment shall be made by or on behalf of the Company
on account of the principal of, premium (if any) or interest on or any
Additional Amounts with respect to the Securities of any series or to acquire
any of such Securities (including any repurchases of such Securities pursuant
to the provisions hereof or thereof at the option of the Holder of such
Securities) for cash or property (other than Junior securities of the Company),
or on account of any redemption provisions of such Securities, in the event of
default in payment of any principal of, premium (if any) or interest on any
Senior Indebtedness of the Company when the same becomes due and payable,
whether at maturity or at a date fixed for prepayment or by declaration or
otherwise (a "Payment Default"), unless and until such Payment Default has been
cured or waived or otherwise has ceased to exist.





                                       61
<PAGE>   70
                 (b)  No payment shall be made by or on behalf of the Company
on account of the principal of, premium (if any) or interest on or any
Additional Amounts with respect to the Securities of any series or to acquire
any of such Securities (including any repurchases of such Securities pursuant
to the provisions hereof or thereof at the option of the Holder of such
Securities) for cash or property (other than Junior securities of the Company),
or on account of any redemption provisions of such Securities, in the event of
any event of default (other than a Payment Default) with respect to any
Designated Senior Indebtedness permitting the holders of such Designated Senior
Indebtedness (or a trustee or other representative on behalf of the holders
thereof) to declare such Designated Senior Indebtedness due and payable prior
to the date on which it would otherwise have become due and payable, upon
written notice thereof to the Company and the Trustee by any holders of
Designated Senior Indebtedness (or a trustee or other representative on behalf
of the holders thereof) (the "Payment Notice"), unless and until such event of
default shall have been cured or waived or otherwise has ceased to exist;
provided, that such payments may not be prevented pursuant to this Section
1302(b) for more than 179 days after an applicable Payment Notice has been
received by the Trustee unless the Designated Senior Indebtedness in respect of
which such event of default exists has been declared due and payable in its
entirety, in which case no such payment may be made until such acceleration has
been rescinded or annulled or such Designated Senior Indebtedness has been paid
in full.  No event of default that existed or was continuing on the date of any
Payment Notice (whether or not such event of default is on the same issue of
Designated Senior Indebtedness) may be made the basis for the giving of a
second Payment Notice, and only one such Payment Notice may be given in any
365-day period.

                 (c)  In furtherance of the provisions of Section 1301, in the
event that, notwithstanding the foregoing provisions of this Section 1302, any
payment or distribution of assets of the Company (other than Junior securities
of the Company) shall be received by the Trustee or the Holders of Securities
of any series at a time when such payment or distribution was prohibited by the
provisions of this Section 1302, then, unless such payment or distribution is
no longer prohibited by this Section 1302, such payment or distribution
(subject to the provisions of Section 1307) shall be received and held in trust
by the Trustee or such Holder or Paying Agent for the benefit of the holders of
Senior Indebtedness of the Company, and shall be paid or delivered by the
Trustee or such Holders or such Paying Agent, as the case may be, to the
holders of Senior Indebtedness of the Company remaining unpaid or unprovided
for or their representative or representatives, or to the trustee or trustees
under any indenture pursuant to which any instruments evidencing such Senior
Indebtedness of the Company may have been issued, ratably, according to the
aggregate amounts remaining unpaid on account of such Senior Indebtedness of
the Company held or represented by each, for application to the payment of all
Senior Indebtedness in full after giving effect to all concurrent payments and
distributions to or for the holders of such Senior Indebtedness.

SECTION 1303.    Securities Subordinated to Prior Payment of All Senior
                 Indebtedness on Dissolution, Liquidation or Reorganization.

                 Upon any distribution of assets of the Company or upon any
dissolution, winding up, total or partial liquidation or reorganization of the
Company, whether voluntary or involuntary, in





                                       62
<PAGE>   71
bankruptcy, insolvency, receivership or similar proceeding or upon assignment
for the benefit of creditors:

                 (a)  the holders of all Senior Indebtedness of the Company
         shall first be entitled to receive payments in full before the Holders
         of Securities of any series are entitled to receive any payment on
         account of the principal of, premium (if any) or interest on or any
         Additional Amounts with respect to such Securities (other than Junior
         securities of the Company);

                 (b)  any payment or distribution of assets of the Company of
         any kind or character, whether in cash, property or securities (other
         than Junior securities of the Company), to which the Holders of
         Securities of any series or the Trustee on behalf of such Holders
         would be entitled, except for the provisions of this Article Thirteen,
         shall be paid by the liquidating trustee or agent or other Person
         making such a payment or distribution directly to the holders of such
         Senior Indebtedness or their representative, ratably according to the
         respective amounts of Senior Indebtedness held or represented by each,
         to the extent necessary to make payment in full of all such Senior
         Indebtedness remaining unpaid after giving effect to all concurrent
         payments and distributions to the holders of such Senior Indebtedness;
         and

                 (c)  in the event that, notwithstanding the foregoing, any
         payment or distribution of assets of the Company of any kind or
         character, whether in cash, property or securities (other than Junior
         securities of the Company), shall be received by the Trustee or the
         Holders of Securities of any series or any Paying Agent (or, if the
         Company or any Affiliate of the Company is acting as its own Paying
         Agent, money for any such payment or distribution shall be segregated
         or held in trust) on account of the principal of, premium (if any) or
         interest on or any Additional Amounts with respect to the Securities
         of such series before all Senior Indebtedness of the Company is paid
         in full, such payment or distribution (subject to the provisions of
         Section 1307) shall be received and held in trust by the Trustee or
         such Holder or Paying Agent for the benefit of the holders of such
         Senior Indebtedness, or their respective representatives, ratably
         according to the respective amounts of such Senior Indebtedness held
         or represented by each, to the extent necessary to make payment as
         provided herein of all such Senior Indebtedness remaining unpaid after
         giving effect to all concurrent payments and distributions and all
         provisions therefor to or for the holders of such Senior Indebtedness,
         but only to the extent that as to any holder of such Senior
         Indebtedness, as promptly as practical following notice from the
         Trustee to the holders of such Senior Indebtedness that such
         prohibited payment has been received by the Trustee, Holder(s) or
         Paying Agent (or has been segregated as provided above), such holder
         (or a representative therefor) notifies the Trustee of the amounts
         then due and owing on such Senior Indebtedness, if any, held by such
         holder and only the amounts specified in such notices to the Trustee
         shall be paid to the holders of such Senior Indebtedness.

SECTION 1304.  Subrogation to Rights of Holders of Senior Indebtedness.

                 Subject to the payment in full of all Senior Indebtedness of
the Company as provided herein, the Holders of the Securities shall be
subrogated (to the extent of the payments or distributions made to the holders
of such Senior Indebtedness pursuant to the provisions of this





                                       63
<PAGE>   72
Article) to the rights of the holders of such Senior Indebtedness to receive
payments or distributions of assets of the Company applicable to the Senior
Indebtedness until all amounts owing on the Securities shall be paid in full.
For the purpose of such subrogation, no such payments or distributions to the
holders of such Senior Indebtedness by the Company, or by or on behalf of the
Holders of the Securities by virtue of this Article Thirteen, which otherwise
would have been made to such Holders shall, as between the Company and such
Holders, be deemed to be payment by the Company or on account of such Senior
Indebtedness, it being understood that the provisions of this Article Thirteen
are and are intended solely for the purpose of defining the relative rights of
the Holders of the Securities, on the one hand, and the holders of such Senior
Indebtedness, on the other hand.

                 If any payment or distribution to which the Holders of the
Securities would otherwise have been entitled but for the provisions of this
Article Thirteen shall have been applied, pursuant to the provisions of this
Article Thirteen, to the payment of amounts payable under Senior Indebtedness
of the Company, then such Holders shall be entitled to receive from the holders
of such Senior Indebtedness any payments or distributions received by such
holders of Senior Indebtedness in excess of the amount sufficient to pay all
amounts payable under or in respect of such Senior Indebtedness in full.

SECTION 1305.  Obligations of the Company Unconditional.

                 Nothing contained in this Article Thirteen or elsewhere in
this Indenture or in the Securities is intended to or shall impair, as between
the Company and the Holders of the Securities of any series, the obligation of
the Company, which is absolute and unconditional, to pay to such Holders the
principal of, premium (if any) and interest on and any Additional Amounts with
respect to the Securities of such series as and when the same shall become due
and payable in accordance with their terms, or is intended to or shall affect
the relative rights of such Holders and creditors of the Company other than the
holders of the Senior Indebtedness, nor shall anything herein or therein
prevent the Trustee or any Holder from exercising all remedies otherwise
permitted by applicable law upon default under this Indenture, subject to the
rights, if any, under this Article Thirteen, of the holders of Senior
Indebtedness in respect of cash, property or securities of the Company received
upon the exercise of any such remedy.  Notwithstanding anything to the contrary
in this Article Thirteen or elsewhere in this Indenture or in the Securities,
upon any distribution of assets of the Company referred to in this Article
Thirteen, the Trustee, subject to the provisions of Sections 601 and 603, and
the Holders of the Securities shall be entitled to rely upon any order or
decree made by any court of competent jurisdiction in which such dissolution,
winding up, liquidation or reorganization proceedings are pending, or a
certificate of the liquidating trustee or agent or other Person making any
distribution to the Trustee or to such Holders for the purpose of ascertaining
the Persons entitled to participate in such distribution, the holders of the
Senior Indebtedness and other Indebtedness of the Company, the amount thereof
or payable thereon, the amount or amounts paid or distributed thereon and all
other facts pertinent thereto or to this Article Thirteen so long as such court
has been apprised of the provisions of, or the order, decree or certificate
makes reference to, the provisions of this Article Thirteen.





                                       64
<PAGE>   73
SECTION 1306.  Trustee Entitled to Assume Payments Not Prohibited in Absence of
               Notice.

                 The Trustee shall not at any time be charged with knowledge of
the existence of any facts that would prohibit the making of any payment to or
by the Trustee unless and until a Responsible Officer of the Trustee or any
Paying Agent shall have received, no later than two Business Days prior to such
payment, written notice thereof from the Company or from one or more holders of
Senior Indebtedness or from any representative therefor and, prior to the
receipt of any such written notice, the Trustee, subject to the provisions of
Sections 601 and 603, shall be entitled in all respects conclusively to assume
that no such fact exists.

SECTION 1307.  Application by Trustee of Amounts Deposited with It.

                 Amounts deposited in trust with the Trustee pursuant to and in
accordance with Article Four shall be for the sole benefit of Holders of the
Securities of series for the benefit of which such amounts were deposited, and,
to the extent allocated for the payment of Securities of such series, shall not
be subject to the subordination provisions of this Article Thirteen.
Otherwise, any deposit of assets with the Trustee or the Paying Agent (whether
or not in trust) for the payment of principal of, premium (if any) or interest
on or any Additional Amounts with respect to any Securities shall be subject to
the provisions of Sections 1301, 1302, 1303 and 1304; provided that if prior to
two Business Days preceding the date on which by the terms of this Indenture
any such assets may become distributable for any purpose (including without
limitation, the payment of either principal of, premium (if any) or interest on
or any Additional Amounts with respect to any Security), the Trustee or such
Paying Agent shall not have received with respect to such assets the written
notice provided for in Section 1306, then the Trustee or such Paying Agent
shall have full power and authority to receive such assets and to apply the
same to the purpose for which they were received, and shall not be affected by
any notice to the contrary that may be received by it on or after such date;
and provided further that nothing contained in this Article Thirteen shall
prevent the Company from making, or the Trustee from receiving or applying, any
payment in connection with the redemption of Securities if the first
publication of notice of such redemption (whether by mail or otherwise in
accordance with this Indenture) has been made, and the Trustee has received
such payment from the Company, prior to the occurrence of any of the
contingencies specified in Section 1302 or 1303.

SECTION 1308.  Subordination Rights Not Impaired by Acts or Omissions of the
               Company or Holders of Senior Indebtedness.

                 No right of any present or future holders of any Senior
Indebtedness to enforce subordination provisions contained in this Article
Thirteen shall at any time in any way be prejudiced or impaired by any act or
failure to act on the part of the Company or by any act or failure to act, in
good faith, by any such holder, or by any noncompliance by the Company with the
terms of this Indenture, regardless of any knowledge thereof that any such
holder may have or be otherwise charged with.  The holders of Senior
Indebtedness may extend, renew, modify or amend the terms of the Senior
Indebtedness or any security therefor and release, sell or exchange such
security and





                                       65
<PAGE>   74
otherwise deal freely with the Company, all without affecting the liabilities
and obligations of the parties to this Indenture or the Holders of the
Securities.

SECTION 1309.  Trustee to Effectuate Subordination of Securities.

                 Each Holder of a Security by his acceptance thereof authorizes
and expressly directs the Trustee on his behalf to take such action as may be
necessary or appropriate to effectuate the subordination provisions contained
in this Article Thirteen and to protect the rights of the Holders of the
Securities pursuant to this Indenture, and appoints the Trustee his
attorney-in-fact for such purpose, including, in the event of any dissolution,
winding up, liquidation or reorganization of the Company (whether in
bankruptcy, insolvency or receivership proceedings or upon an assignment for
the benefit of creditors of the Company), the filing of a claim for the unpaid
balance of his Securities in the form required in said proceedings and cause
said claim to be approved.  If the Trustee does not file a proper claim or
proof of debt in the form required in such proceeding prior to 30 days before
the expiration of the time to file such claim or claims, then the holders of
the Senior Indebtedness or their representative is hereby authorized to have
the right to file and is hereby authorized to file an appropriate claim for and
on behalf of the Holders of said Securities.  Nothing herein contained shall be
deemed to authorize the Trustee or the holders of Senior Indebtedness or their
representative to authorize or consent to or accept or adopt on behalf of any
Holder of Securities any plan of reorganization, arrangement, adjustment or
composition affecting the Securities or the rights of any Holder thereof, or to
authorize the Trustee or the holders of Senior Indebtedness or their
representative to vote in respect of the claim of any Holder of the Securities
in any such proceeding.

SECTION 1310.  Right of Trustee to Hold Senior Indebtedness.

                 The Trustee in its individual capacity shall be entitled to
all of the rights set forth in this Article Thirteen in respect of any Senior
Indebtedness at any time held by it to the same extent as any other holder of
Senior Indebtedness, and nothing in this Indenture shall be construed to
deprive the Trustee of any of its rights as such holder.

SECTION 1311.  Article Thirteen Not to Prevent Events of Default.

                 The failure to make a payment on account of principal of or
premium (if any) or interest on the Securities by reason of any provision of
this Article Thirteen shall not be construed as preventing the occurrence of a
Default or an Event of Default under Section 501 or in any way prevent the
Holders of the Securities from exercising any right hereunder other than the
right to receive payment on the Securities.

SECTION 1312.  No Fiduciary Duty of Trustee to Holders of Senior Indebtedness.

                 The Trustee shall not be deemed to owe any fiduciary duty to
the holders of Senior Indebtedness, and shall not be liable to any such holders
(other than for its willful misconduct or negligence) if it shall in good faith
mistakenly pay over or distribute to the Holders of the Securities or the
Company or any other Person, cash, property or securities to which any holders
of Senior





                                       66
<PAGE>   75
Indebtedness shall be entitled by virtue of this Article Thirteen or otherwise.
Nothing in this Section 1312 shall affect the obligation of any other such
Person to hold such payment for the benefit of, and to pay such payment over
to, the holders of Senior Indebtedness or their representative.

SECTION 1313.  Article Applicable to Paying Agent.

                 In case at any time any Payment Agent other than the Trustee
shall have been appointed by the Company and be then acting hereunder, the term
"Trustee" as used in this Article Thirteen shall in such case (unless the
context shall otherwise require) be construed as extending to and including
such Payment Agent within its meaning as fully for all intents and purposes as
if such Paying Agent were named in this Article in addition to or in place of
the Trustee; provided, however, that this Section 1313 shall not apply to the
Company or any Affiliate of the Company if it or such Affiliate acts as Paying
Agent.


                                ARTICLE FOURTEEN

                       MEETINGS OF HOLDERS OF SECURITIES

SECTION 1401.  Purposes for Which Meetings May Be Called.

                 A meeting of Holders of Securities of any or all series may be
called at any time and from time to time pursuant to this Article to make, give
or take any request, demand, authorization, direction, notice, consent, waiver
or other action provided by this Indenture to be made, given or taken by
Holders of Securities of such series.

SECTION 1402.  Call, Notice and Place of Meetings.

                 (a)      The Trustee may at any time call a meeting of Holders
of Securities of any series for any purpose specified in Section 1401, to be
held at such time and at such place in Houston, Texas, in New York, New York,
in London, England, or in any other location, as the Trustee shall determine.
Notice of every meeting of Holders of Securities of any series, setting forth
the time and the place of such meeting and in general terms the action proposed
to be taken at such meeting, shall be given, in the manner provided in Section
107, not less than 20 nor more than 180 days prior to the date fixed for the
meeting.

                 (b)      In case at any time the Company, pursuant to a Board
Resolution, or the Holders of at least 10% in aggregate principal amount of the
Outstanding Securities of any series, shall have requested the Trustee for any
such series to call a meeting of the Holders of Securities of such series for
any purpose specified in Section 1401, by written request setting forth in
reasonable detail the action proposed to be taken at the meeting, and the
Trustee shall not have made the first publication of the notice of such meeting
within 30 days after receipt of such request or shall not thereafter proceed to
cause the meeting to be held as provided herein, then the Company or the
Holders of Securities of such series in the amount above specified, as the case
may be, may determine the time and the place in Houston, Texas, in New York,
New York, in London, England,





                                       67
<PAGE>   76
for such meeting and may call such meeting for such purposes by giving notice
thereof as provided in Subsection (a) of this Section.

SECTION 1403.  Persons Entitled to Vote at Meetings.

                 To be entitled to vote at any meeting of Holders of Securities
of any series, a Person shall be (1) a Holder of one or more Outstanding
Securities of such series, or (2) a Person appointed by an instrument in
writing as proxy for a Holder or Holders of one or more Outstanding Securities
of such series by such Holder or Holders.  The only Persons who shall be
entitled to be present or to speak at any meeting of Holders of Securities of
any series shall be the Persons entitled to vote at such meeting and their
counsel, any representatives of the Trustee and its counsel and any
representatives of the Company and its counsel.

SECTION 1404.  Quorum; Action.

                 The Persons entitled to vote a majority in aggregate principal
amount of the Outstanding Securities of a series shall constitute a quorum for
a meeting of Holders of Securities of such series.  In the absence of a quorum
within 30 minutes of the time appointed for any such meeting, the meeting
shall, if convened at the request of Holders of Securities of such series, be
dissolved.  In any other case, the meeting may be adjourned for a period of not
less than 10 days as determined by the chairman of the meeting prior to the
adjournment of such meeting.  In the absence of a quorum at any such adjourned
meeting, such adjourned meeting may be further adjourned for a period of not
less than 10 days as determined by the chairman of the meeting prior to the
adjournment of such adjourned meeting.  Subject to Section 1405(d), notice of
the reconvening of any adjourned meeting shall be given as provided in Section
1402(a), except that such notice need be given only once not less than five
days prior to the date on which the meeting is scheduled to be reconvened.
Notice of the reconvening of an adjourned meeting shall state expressly that
Persons entitled to vote a majority in principal amount of the Outstanding
Securities of such series shall constitute a quorum.

                 Except as limited by the proviso to Section 902, any
resolution presented to a meeting or adjourned meeting duly reconvened at which
a quorum is present as aforesaid may be adopted by the affirmative vote of the
Holders of a majority in aggregate principal amount of the Outstanding
Securities of that series; provided, however, that, except as limited by the
proviso to Section 902, any resolution with respect to any request, demand,
authorization, direction, notice, consent or waiver which this Indenture
expressly provides may be made, given or taken by the Holders of a specified
percentage that is less than a majority in aggregate principal amount of the
Outstanding Securities of a series may be adopted at a meeting or an adjourned
meeting duly reconvened and at which a quorum is present as aforesaid by the
affirmative vote of the Holders of such specified percentage in aggregate
principal amount of the Outstanding Securities of that series.

                 Except as limited by the proviso to Section 902, any
resolution passed or decision taken at any meeting of Holders of Securities of
any series duly held in accordance with this Section shall be binding on all
the Holders of Securities of such series, whether or not present or represented
at the meeting.





                                       68
<PAGE>   77
SECTION 1405.  Determination of Voting Rights; Conduct and Adjournment of
               Meetings.

                 (a)      The holding of Securities shall be proved in the
         manner specified in Section 105 and the appointment of any proxy shall
         be proved in the manner specified in Section 105.  Such regulations
         may provide that written instruments appointing proxies, regular on
         their face, may be presumed valid and genuine without the proof
         specified in Section 105 or other proof.

                 (b)      The Trustee shall, by an instrument in writing,
         appoint a temporary chairman of the meeting, unless the meeting shall
         have been called by the Company or by Holders of Securities as
         provided in Section 1402(b), in which case the Company or the Holders
         of Securities of the series calling the meeting, as the case may be,
         shall appoint a temporary chairman.  A permanent chairman and a
         permanent secretary of the meeting shall be elected by vote of the
         Persons entitled to vote a majority in aggregate principal amount of
         the Outstanding Securities of such series represented at the meeting.

                 (c)      At any meeting each Holder of a Security of such
         series and each proxy shall be entitled to one vote for each $1,000
         principal amount of the Outstanding Securities of such series held or
         represented by him; provided, however, that no vote shall be cast or
         counted at any meeting in respect of any Security challenged as not
         Outstanding and ruled by the chairman of the meeting to be not
         Outstanding.  The chairman of the meeting shall have no right to vote,
         except as a Holder of a Security of such series or as a proxy.

                 (d)      Any meeting of Holders of Securities of any series
         duly called pursuant to Section 1402 at which a quorum is present may
         be adjourned from time to time by Persons entitled to vote a majority
         in aggregate principal amount of the Outstanding Securities of such
         series represented at the meeting; and the meeting may be held as so
         adjourned without further notice.

SECTION 1406.  Counting Votes and Recording Action of Meetings.

                 The vote upon any resolution submitted to any meeting of
Holders of Securities of any series shall be by written ballots on which shall
be subscribed the signatures of the Holders of Securities of such series or of
their representatives by proxy and the principal amounts and serial numbers of
the Outstanding Securities of such series held or represented by them.  The
permanent chairman of the meeting shall appoint two inspectors of votes who
shall count all votes cast at the meeting for or against any resolution and who
shall make and file with the secretary of the meeting their verified written
reports in duplicate of all votes cast at the meeting.  A record, at least in
duplicate, of the proceedings of each meeting of Holders of Securities of any
series shall be prepared by the secretary of the meeting and there shall be
attached to such record the original reports of the inspectors of votes on any
vote by ballot taken thereat and affidavits by one or more persons having
knowledge of the facts setting forth a copy of the notice of the meeting and
showing that such notice was given as provided in Section 1402 and, if
applicable, Section 1404.  Each copy shall be signed and verified by the
affidavits of the permanent chairman and secretary of the meeting and one such





                                       69
<PAGE>   78
copy shall be delivered to the Company, and another to the Trustee to be
preserved by the Trustee, the latter to have attached thereto the ballots voted
at the meeting.  Any record so signed and verified shall be conclusive evidence
of the matters therein stated.

                             *         *          *

                 This instrument may be executed in any number of counterparts,
each of which so executed shall be deemed to be an original, but all such
counterparts shall together constitute but one and the same instrument.

                 IN WITNESS WHEREOF, the parties hereto have caused this
Indenture to be duly executed as of the day and year first above written.

                                       COOPER CAMERON CORPORATION


                                       By 
                                          --------------------------------------
                                          Name:
                                          Title:



                                       ________________________________, Trustee



                                       By
                                          --------------------------------------
                                          Name:
                                          Title:




                                       70

<PAGE>   1





                                                                     EXHIBIT 5.1

Franklin Myers
Senior Vice President and General Counsel
Cooper Cameron Corporation
515 Post Oak Boulevard, Suite 1200
Houston, Texas 77027



                                 April 30, 1998


Cooper Cameron Corporation
515 Post Oak Boulevard, Suite 1200
Houston, Texas 77027

         Re:     Opinion as to legality of Securities

Gentlemen:

         I have examined the Restated Certificate of Incorporation, the Bylaws
and the corporate proceedings  (the "Enabling Resolutions") of Cooper Cameron
Corporation, a Delaware corporation ("Company"), and the Form S-3 Registration
Statement relating to the registration with the United States Securities and
Exchange Commission under the Securities Act of 1933 of $500,000,000 in
aggregate initial issue price of equity, debt and other securities (the
"Securities") of the Company for the purpose of offering to the public, and
have made such other examinations as I deem necessary in the premises; and from
such examinations I am of the opinion that:

                 (i)      such of the Securities as are common stock, $.01 par
         value ("Common Stock"), or preferred stock, $.01 par value ("Preferred
         Stock"), of the Company, when duly issued and delivered in accordance
         with the Enabling Resolutions or upon conversion, exchange or exercise
         of convertible, exchangeable, or exercisable Securities of the
         Company, will be duly authorized, validly issued, fully paid and
         nonassessable outstanding equity Securities of the Company of the
         class and/or series so issued; and

                 (ii)     such of the Securities as are evidences of
         indebtedness or warrants of the Company, when duly authenticated,
         issued and delivered in accordance with the Enabling Resolutions or
         upon conversion, exchange or exercise of convertible, exchangeable or
         exercisable Securities of the Company, will constitute legal, valid
         and binding obligations of the Company enforceable in accordance with
         their terms, except as such enforcement may be limited by bankruptcy,
         insolvency, reorganization or similar laws affecting creditor's rights
         generally and that the remedies of specific performance and injunctive
         and other forms
<PAGE>   2
         of equitable relief are subject to certain equitable defenses and to
         the discretion of the court before which any proceeding therefor may
         be brought.

         The foregoing opinions are subject to the following additional
conditions: (a) the due authorization, execution and delivery by the Company,
and by each counterparty thereto, of (x) each applicable indenture (including
any necessary supplemental indenture or additional corporate proceedings)
relating to such of the Securities as are evidences of indebtedness that are
offered and sold (or which may become issuable upon the conversion, exchange or
exercise of any convertible, exchangeable or exercisable Securities) and (y)
each applicable warrant agreement (including any necessary warrant agreement
supplement or additional corporate proceedings) relating to such of the
Securities as are warrants that are offered and sold (or which may become
issuable upon the conversion, exchange or exercise of any convertible,
exchangeable or exercisable Securities), (b) with respect to such of the
Securities as are Preferred Stock, the due designation of an applicable series
within that class and the due authorization for issuance of such number of
shares of Preferred Stock within the series that are offered and sold (or the
reservation of such shares as may become issuable upon the conversion, exchange
or exercise of any convertible, exchangeable or exercisable Securities), and
(c) with respect to such of the Securities as are Common Stock, the due
authorization for issuance of such number of shares of Common Stock that are
offered and sold (or the reservation of such shares as may become issuable upon
the conversion, exchange or exercise of any convertible, exchangeable or
exercisable Securities).

         I consent to the references to me under the caption "Legal Matters" in
the Company's Form S-3 Registration Statement relating to the Securities, and
in the related Prospectus.

                                        Very truly yours,
                                 
                                 
                                 
                                        Franklin Myers,
                                        Senior Vice President, General Counsel
                                        and Corporate Secretary
                                 





<PAGE>   1
 
                                                                      EXHIBIT 12
 
                           COOPER CAMERON CORPORATION
 
               COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
                        (AMOUNTS IN MILLIONS OF DOLLARS)
 
<TABLE>
<CAPTION>
                                                           YEARS ENDED DECEMBER 31,
                                                ----------------------------------------------
                                                 1997      1996      1995      1994      1993
                                                ------    ------    -------    -----    ------
<S>                                             <C>       <C>       <C>        <C>      <C>
Pre-tax income (loss) from continuing
  operations..................................  $199.4    $ 92.0    $(496.4)   $ 3.3    $ 89.3
Equity adjustments:
  Deduct undistributed income of less than 50%
     owned entities...........................    (2.4)       --         --       --       (.4)
Fixed charges:
  Interest expense............................    28.6      20.9       23.3     20.0      15.9
  Interest portion of rental expense (A)......     5.0       5.1        5.4      5.1       5.7
                                                ------    ------    -------    -----    ------
          Total fixed charges.................    33.6      26.0       28.7     25.1      21.6
                                                ------    ------    -------    -----    ------
Earnings (loss) before income taxes and fixed
  charges.....................................  $230.6    $118.0    $(467.7)   $28.4    $110.5
                                                ======    ======    =======    =====    ======
Ratio of earnings to fixed charges............     6.9       4.5(B)   (C)        1.1       5.1
                                                ======    ======    =======    =====    ======
</TABLE>
 
- ---------------
 
(A)  The portion of rent included in the calculation is believed to be a
     reasonable approximation of the interest factor.
 
(B)  Excluding nonrecurring/unusual charges of $7.3 million, the ratio of
     earnings to fixed charges would be 4.8.
 
(C)  As a result of the loss incurred in 1995, the Company was unable to fully
     cover the indicated fixed charges, even after excluding the provision for
     impairment of goodwill and nonrecurring/unusual charges of $482.5 million.

<PAGE>   1
 
                                                                    EXHIBIT 23.2
 
                        CONSENT OF INDEPENDENT AUDITORS
 
     We consent to the reference to our firm under the caption "Experts" in the
Registration Statement (Form S-3) and related Prospectus of Cooper Cameron
Corporation for the registration of up to $500,000,000 of its securities and to
the incorporation by reference therein of our report dated January 29, 1998,
with respect to the consolidated financial statements of Cooper Cameron
Corporation incorporated by reference in its Annual Report (Form 10-K) for the
year ended December 31, 1997, filed with the Securities and Exchange Commission.
 
                                            /s/ Ernst & Young LLP
 
Houston, Texas
April 29, 1997

<PAGE>   1
                                                                      EXHIBIT 25

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


                                    FORM T-1

                            STATEMENT OF ELIGIBILITY
                     UNDER THE TRUST INDENTURE ACT OF 1939
                 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE

                CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY
                   OF A TRUSTEE PURSUANT TO SECTION 305(b)(2)

                          ____________________________

                       THE FIRST NATIONAL BANK OF CHICAGO
              (EXACT NAME OF TRUSTEE AS SPECIFIED IN ITS CHARTER)

<TABLE>
         <S>                                                        <C>
         A NATIONAL BANKING ASSOCIATION                             36-0899825
                                                                    (I.R.S. EMPLOYER
                                                                    IDENTIFICATION NUMBER)

         ONE FIRST NATIONAL PLAZA, CHICAGO, ILLINOIS                60670-0126
         (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)                   (ZIP CODE)
</TABLE>

                       THE FIRST NATIONAL BANK OF CHICAGO
                      ONE FIRST NATIONAL PLAZA, SUITE 0286
                         CHICAGO, ILLINOIS 60670-0286
            ATTN:  LYNN A. GOLDSTEIN, LAW DEPARTMENT (312) 732-6919
           (NAME, ADDRESS AND TELEPHONE NUMBER OF AGENT FOR SERVICE)

                         _____________________________

                           COOPER CAMERON CORPORATION
              (EXACT NAME OF OBLIGOR AS SPECIFIED IN ITS CHARTER)

<TABLE>
         <S>                                                        <C>
         DELAWARE                                                   76-0451843
         (STATE OR OTHER JURISDICTION OF                            (I.R.S. EMPLOYER
          INCORPORATION OR ORGANIZATION)                            IDENTIFICATION NUMBER)


         515 POST OAK BOULEVARD, SUITE 1200
         HOUSTON, TEXAS                                             77027
         (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)                   (ZIP CODE)
</TABLE>


                                DEBT SECURITIES
                        (TITLE OF INDENTURE SECURITIES)
<PAGE>   2

ITEM 1.   GENERAL INFORMATION.  FURNISH THE FOLLOWING
          --------------------                       
          INFORMATION AS TO THE TRUSTEE:

          (A)    NAME AND ADDRESS OF EACH EXAMINING OR
          SUPERVISING AUTHORITY TO WHICH IT IS SUBJECT.

          Comptroller of Currency, Washington, D.C.,
          Federal Deposit Insurance Corporation,
          Washington, D.C., The Board of Governors of
          the Federal Reserve System, Washington D.C.

          (B)    WHETHER IT IS AUTHORIZED TO EXERCISE
          CORPORATE TRUST POWERS.

          The trustee is authorized to exercise corporate
          trust powers.

ITEM 2.   AFFILIATIONS WITH THE OBLIGOR.  IF THE OBLIGOR
         -------------------------------                
          IS AN AFFILIATE OF THE TRUSTEE, DESCRIBE EACH
          SUCH AFFILIATION.

          No such affiliation exists with the trustee.


ITEM 16.  LIST OF EXHIBITS.   LIST BELOW ALL EXHIBITS FILED AS A
          -----------------                                     
          PART OF THIS STATEMENT OF ELIGIBILITY.

          1.  A copy of the articles of association of the
              trustee now in effect.*
              
          2.  A copy of the certificates of authority of the
              trustee to commence business.*
              
          3.  A copy of the authorization of the trustee to
              exercise corporate trust powers.*
              
          4.  A copy of the existing by-laws of the trustee.*
              
          5.  Not Applicable.
              
          6.  The consent of the trustee required by
              Section 321(b) of the Act.
              
          7.  A copy of the latest report of condition of the
              trustee published pursuant to law or the
              requirements of its supervising or examining
              authority.
<PAGE>   3

          8.  Not Applicable.
              
          9.  Not Applicable.

          Pursuant to the requirements of the Trust Indenture Act of 1939, as
amended, the trustee, The First National Bank of Chicago, a national banking
association organized and existing under the laws of the United States of
America, has duly caused this Statement of Eligibility to be signed on its
behalf by the undersigned, thereunto duly authorized, all in the City of
Chicago and the State of Illinois, on this 29th day of April, 1998.


                 THE FIRST NATIONAL BANK OF CHICAGO,
                 TRUSTEE

                 By  /s/ John R. Prendiville
                     John R. Prendiville
                     Vice President




* EXHIBIT 1, 2, 3 AND 4 ARE HEREIN INCORPORATED BY REFERENCE TO EXHIBITS
BEARING IDENTICAL NUMBERS IN ITEM 16 OF THE FORM T-1 OF THE FIRST NATIONAL BANK
OF CHICAGO, FILED AS EXHIBIT 25.1 TO THE REGISTRATION STATEMENT ON FORM S-3 OF
SUNAMERICA, INC., FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON OCTOBER
25, 1996 (REGISTRATION NO. 333-14201).
<PAGE>   4
                                   EXHIBIT 6



                      THE CONSENT OF THE TRUSTEE REQUIRED
                          BY SECTION 321(b) OF THE ACT



                                                                  April 29, 1998


Securities and Exchange Commission
Washington, D.C.  20549

Gentlemen:

               In connection with the qualification of an indenture between
Cooper Cameron Corporation and The First National Bank of Chicago, the
undersigned, in accordance with Section 321(b) of the Trust Indenture Act of
1939, as amended, hereby consents that the reports of examinations of the
undersigned, made by Federal or State authorities authorized to make such
examinations, may be furnished by such authorities to the Securities and
Exchange Commission upon its request therefor.


                       Very truly yours,
                       
                       THE FIRST NATIONAL BANK OF CHICAGO
                       
                       By  /s/ John R. Prendiville
                           John R. Prendiville
                           Vice President
<PAGE>   5



                                   EXHIBIT 7

<TABLE>
<S>                       <C>                                            <C>                  <C>     <C>
Legal Title of Bank:              The First National Bank of Chicago     Call Date: 12/31/97  ST-BK:  17-1630 FFIEC 031
Address:                          One First National Plaza, Ste 0303                                       Page RC-1
City, State  Zip:                 Chicago, IL  60670
FDIC Certificate No.:  0/3/6/1/8
                       ---------
</TABLE>

CONSOLIDATED REPORT OF CONDITION FOR INSURED COMMERCIAL
AND STATE-CHARTERED SAVINGS BANKS FOR DECEMBER 31,1997

All schedules are to be reported in thousands of dollars.  Unless otherwise
indicated, report the amount outstanding  as of the last business day of the
quarter.

SCHEDULE RC--BALANCE SHEET


<TABLE>
<CAPTION>
                                                             DOLLAR AMOUNTS IN                       C400    
                                                                                                ------------
                                                                  THOUSANDS                    RCFD     BIL MIL THOU
                                                   ------------------------------------------------------------------------
<S>                                                                                        <C>       <C>
ASSETS
1.  Cash and balances due from depository institutions (from Schedule
    RC-A):
    a. Noninterest-bearing balances and currency and coin(1)                                    0081     4,267,336      1.a.
    b. Interest-bearing balances(2)                                                             0071     6,893,837      1.b.
2.  Securities
    a. Held-to-maturity securities(from Schedule RC-B, column A)                                1754             0      2.a.
    b. Available-for-sale securities (from Schedule RC-B, column D)............                 1773     5,691,722      2.b.
3.  Federal funds sold and securities purchased under agreements to
    resell                                                                                      1350     6,339,940      3.
4.  Loans and lease financing receivables:
    a. Loans and leases, net of unearned income (from Schedule
    RC-C)                                                           RCFD 2122 25,202,984                                4.a.
    b. LESS: Allowance for loan and lease losses                    RCFD 3123    419,121                                4.b.
    c. LESS: Allocated transfer risk reserve                        RCFD 3128          0                                4.c.
    d. Loans and leases, net of unearned income, allowance, and
       reserve (item 4.a minus 4.b and 4.c)                                                     2125     24,783,863     4.d.
5.  Trading assets (from Schedule RD-D)                                                         3545      6,703,332     5.
6.  Premises and fixed assets (including capitalized leases)                                    2145        743,426     6.
7.  Other real estate owned (from Schedule RC-M)                                                2150          7,727     7.
8.  Investments in unconsolidated subsidiaries and associated
    companies (from Schedule RC-M)                                                              2130        134,959     8.
9.  Customers' liability to this bank on acceptances outstanding                                2155        644,340     9.
10.      Intangible assets (from Schedule RC-M)                                                 2143        268,501     10.
11.      Other assets (from Schedule RC-F)                                                      2160      2,004,432     11.
12.      Total assets (sum of items 1 through 11)                                               2170     58,483,415     12.
</TABLE>

_____________
(1)  Includes cash items in process of collection and unposted debits.
(2)  Includes time certificates of deposit not held for trading.
<PAGE>   6
<TABLE>
<S>                               <C>                                                    <C>              <C>
Legal Title of Bank:              The First National Bank of Chicago         Call Date:  09/30/97 ST-BK:  17-1630 FFIEC 031
Address:                          One First National Plaza, Ste 0303                                                      Page RC-2
City, State  Zip:                 Chicago, IL  60670
FDIC Certificate No.:             0/3/6/1/8
                                  ---------
</TABLE>

SCHEDULE RC-CONTINUED
<TABLE>
<CAPTION>
                                                                    DOLLAR AMOUNTS IN
                                                                        Thousands                     BIL MIL THOU
- ------------------------------------------------------------------------------------------------------------------
<S>                                                                                           <C>
LIABILITIES
13.      Deposits:
    a. In domestic offices (sum of totals of columns A and C
       from Schedule RC-E, part 1)                                                              RCON2200     21,756,846       13.a
       (1) Noninterest-bearing(1)                                   RCON 6631  9,197,227                                      13.a.1
       (2) Interest-bearing                                         RCON 6636    559,619                                      13.a.2
    b. In foreign offices, Edge and Agreement subsidiaries, and
       IBFs (from Schedule RC-E, part II)                                                       RCFN 2200    14,811,410       13.b.
       (1) Noninterest bearing                                      RCFN 6631    332,801                                      13.b.1
       (2) Interest-bearing                                         RCFN 6636 14,478,609                                      13.b.2
14. Federal funds purchased and securities sold under agreements
    to repurchase:                                                                              RCFD 2800     4,535,422       14
15.      a. Demand notes issued to the U.S. Treasury                                            RCON 2840        43,763       15.a
    b. Trading Liabilities(from Schedule RC-D)......................                          RCFD 3548       6,523,239       15.b
16.      Other borrowed money:
    a. With a remaining  maturity of one year or less                                           RCFD 2332     1,360,165       16.a
    b. With a remaining  maturity of than one year through three years                               A547       576,492       16.b.
    c.  With a remaining maturity of more than three years..........                                 A548       703,981       16.c
17.      Not applicable
18.      Bank's liability on acceptance executed and outstanding                                RCFD 2920       644,341       18
19.      Subordinated notes and debentures (2)                                                  RCFD 3200     1,700,000       19
20.      Other liabilities (from Schedule RC-G)                                                 RCFD 2930     1,322,077       20
21.      Total liabilities (sum of items 13 through 20)                                         RCFD 2948    53,987,736       21
22.      Not applicable
EQUITY CAPITAL
23.      Perpetual preferred stock and related surplus                                          RCFD 3838             0       23
24.      Common stock                                                                           RCFD 3230       200,858       24
25.      Surplus (exclude all surplus related to preferred stock)                               RCFD 3839     2,999,001       25
26. a. Undivided profits and capital reserves                                                   RCFD 3632     1,273,239       26.a.
    b. Net unrealized holding gains (losses) on available-for-sale
       securities                                                                               RCFD 8434        24,096       26.b.
27.      Cumulative foreign currency translation adjustments                                    RCFD 3284        (1,515)      27
28.      Total equity capital (sum of items 23 through 27)                                      RCFD 3210     4,495,679       28
29.      Total liabilities and equity capital (sum of items 21 and 28)                          RCFD 3300    58,483,415       29
</TABLE>

Memorandum
To be reported only with the March Report of Condition.
<TABLE>
<S>                                                                                              <C>                          <C>
1.  Indicate in the box at the right the number of the statement below that
    best describes the  most comprehensive level of auditing work performed for
    the bank by independent external                                                             Number
    auditors as of any date during 1996...........................RCFD 6724.....................N/A                           M.1
1 = Independent audit of the bank conducted in accordance      4. = Directors' examination of the bank performed by other
    with generally accepted auditing standards by a certified       external auditors (may be required by state chartering
    public accounting firm which submits a report on the bank       authority)
2 = Independent audit of the bank's parent holding company     5 =  Review of the bank's financial statements by external
    conducted in accordance with generally accepted auditing        auditors
    standards by a certified public accounting firm which      6 =  Compilation of the bank's financial statments by external
    submits a report on the consolidated holding company            auditors
    (but not on the bank separately)                           7 =  Other audit procedures (excluding tax preparation work)
3 = Directors' examination of the bank conducted in            8 =  No external audit work
    accordance with generally accepted auditing standards
    by a certified public accounting firm (may be required by
    state chartering authority)
</TABLE>
- --------------------------
(1) Includes total demand deposits and noninterest-bearing time and savings 
    deposits.
(2) Includes limited-life preferred stock and related surplus.
        


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