Document:

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                                                                    EXHIBIT 4.13

                           CONTINENTAL AIRLINES, INC.

                                  $100,000,000

                Floating Rate Secured Subordinated Notes due 2007

                               PURCHASE AGREEMENT

                                                                     May 2, 2003

MORGAN STANLEY & CO. INCORPORATED
1585 Broadway
New York, New York 10036

Ladies and Gentlemen:

      Continental Airlines, Inc., a Delaware corporation (the "COMPANY"),
proposes to issue and sell to Morgan Stanley & Co. Incorporated (the "INITIAL
PURCHASER") $100,000,000 principal amount of its Floating Rate Secured
Subordinated Notes due 2007 bearing interest at the rate of USD 3-Month LIBOR +
7.50% (the "OFFERED NOTES") to be issued pursuant to the provisions of an
Amended and Restated Indenture to be dated as of the Closing Date (as defined
below) (the "INDENTURE") among the Company, Wilmington Trust Company, as trustee
(the "TRUSTEE"), Morgan Stanley Capital Services Inc., as Liquidity Provider
(the "LIQUIDITY PROVIDER"), and MBIA Insurance Corporation, as Policy Provider
(the "POLICY PROVIDER").

      The holders of the Offered Notes will be entitled to the benefits of an
Exchange and Registration Rights Agreement, in a form reasonably satisfactory to
the Initial Purchaser to be dated as of the Closing Date (the "REGISTRATION
RIGHTS AGREEMENT") between the Company and the Initial Purchaser, pursuant to
which the Company will file a registration statement with the Securities and
Exchange Commission (the "COMMISSION") registering the Exchange Securities
referred to in such Registration Rights Agreement (the "EXCHANGE NOTES") or the
Offered Notes under the Securities Act of 1933, as amended (the "SECURITIES
ACT").

      The Offered Notes will only be offered (A) in the case of offers inside
the United States, to persons reasonably believed by the Initial Purchaser to be
(1) "qualified institutional buyers" (as defined in Rule 144A under the
Securities Act) ("QIBS") in reliance on Rule 144A under the Securities Act or
(2) not more than two institutional "accredited investors" (as defined

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in Rule 501(a)(1), (2), (3) or (7) under the Securities Act) ("INSTITUTIONAL
ACCREDITED INVESTORS") that deliver a letter in the form annexed as Annex III to
the Final Memorandum (as defined below) and (B) in the case of offers outside
the United States, to persons other than U.S. persons (including dealers or
other professional fiduciaries in the United States acting on a discretionary
basis for foreign beneficial owners (other than an estate or trust)) in
accordance with Regulation S under the Securities Act ("REGULATION S").

      In connection with the sale of the Offered Notes, the Company has prepared
a preliminary offering memorandum dated April 24, 2003 (the "PRELIMINARY
MEMORANDUM") and a final offering memorandum dated the date of this Agreement
(the "FINAL MEMORANDUM" and, with the Preliminary Memorandum, each a
"MEMORANDUM") including or incorporating by reference a description of the terms
of the Offered Notes, the terms of the offering and a description of the
Company. As used herein, the terms "Preliminary Memorandum", "Final Memorandum"
and "Memorandum" shall include, in each case, the documents incorporated by
reference therein. The terms "SUPPLEMENT", "AMENDMENT" and "AMEND" as used
herein with respect to a Memorandum shall include all documents deemed to be
incorporated by reference in such Memorandum that are filed subsequent to the
date of such Memorandum with the Commission pursuant to the Securities Exchange
Act of 1934, as amended (the "EXCHANGE ACT").

      The Offered Notes and the Exchange Notes will be secured by a lien on the
Collateral (as defined in the Indenture), which includes certain aircraft spare
parts and related assets owned by the Company. The Offered Notes and the
Exchange Notes will rank junior in right of payment to the Floating Rate Secured
Notes due 2007 (the "SENIOR NOTES") previously issued by the Company, as well as
amounts owed to the Policy Provider and the Liquidity Provider relating to the
Senior Notes.

      The holders of the Offered Notes and the Exchange Notes will be entitled
to the benefits of the Spare Parts Security Agreement dated as of December 6,
2002 (the "ORIGINAL SECURITY AGREEMENT") between the Company and Wilmington
Trust Company, as Security Agent (the "SECURITY AGENT"), as amended by Amendment
No. 1 to Spare Parts Security Agreement to be dated as of the Closing Date
("AMENDMENT NO. 1 TO SECURITY AGREEMENT"; the Original Security Agreement as
amended by Amendment No. 1 to Security Agreement, the "SECURITY AGREEMENT")
between the Company and the Security Agent. The Policy Provider will be entitled
to the benefits of the Collateral Maintenance Agreement dated as of December 6,
2002 (the "ORIGINAL COLLATERAL MAINTENANCE AGREEMENT") between the Company and
the Policy Provider, as amended by Amendment No. 1 to Collateral Maintenance
Agreement to be dated as of the Closing Date ("AMENDMENT NO. 1 TO COLLATERAL
MAINTENANCE AGREEMENT"; the Original Collateral Maintenance Agreement as amended
by Amendment No. 1 to Collateral Maintenance Agreement, the "COLLATERAL
MAINTENANCE AGREEMENT") between the Company and the Policy Provider.

      In addition, the Company, the Trustee and Wilmington Trust Company, as
reference agent thereunder, have entered into a Reference Agency Agreement dated
as of December 6, 2002 (the "ORIGINAL REFERENCE AGENCY AGREEMENT") for the
purpose of calculating LIBOR for the periods from and including an Interest
Payment Date to but excluding the next succeeding Interest Payment Date. The
Original Reference Agency Agreement, as amended by Amendment No. 1 to Reference
Agency Agreement to be dated as of the Closing Date

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("AMENDMENT NO. 1 TO REFERENCE AGENCY AGREEMENT"), shall be herein referred to
as the "REFERENCE AGENCY AGREEMENT".

      The Offered Notes and the Exchange Notes will not be entitled to the
benefits of a liquidity facility or a financial guaranty insurance policy.

      The Company understands that the Initial Purchaser proposes to make an
offering of the Offered Notes on the terms, subject to the conditions and in the
manner set forth in the Final Memorandum and Section 5 hereof, as soon as the
Initial Purchaser deems advisable after this Agreement (as defined below) has
been executed and delivered.

      Capitalized terms used but not defined in this Purchase Agreement (the
"AGREEMENT") shall have the meanings specified therefor in the Indenture. As
used in this Agreement, the term "EXECUTION DOCUMENTS" shall mean the Indenture,
Amendment No. 1 to Security Agreement, Amendment No. 1 to Collateral Maintenance
Agreement, Amendment No. 1 to Reference Agency Agreement and the Registration
Rights Agreement, and the term "OPERATIVE AGREEMENTS" shall mean the Execution
Documents, the Reference Agency Agreement, the Collateral Maintenance Agreement
and the Security Agreement.

      1. REPRESENTATIONS AND WARRANTIES. (a) The Company represents and warrants
to, and agrees with, the Initial Purchaser that:

            (i) In connection with the sale of the Offered Notes, the Company
      has prepared the Preliminary Memorandum and the Final Memorandum. The
      Company hereby confirms that it has authorized the use of the Preliminary
      Memorandum in connection with the offer of the Offered Notes by the
      Initial Purchaser on and prior to the date of this Agreement and the Final
      Memorandum in connection with the offer and resale of the Offered Notes by
      the Initial Purchaser after the date of this Agreement. On the date of
      this Agreement, the Final Memorandum does not contain any untrue statement
      of a material fact or omit to state any material fact necessary in order
      to make the statements therein, in the light of the circumstances under
      which they were made, not misleading. The preceding sentence does not
      apply to statements in or omissions from the Final Memorandum based upon
      information furnished in writing by the Initial Purchaser to the Company
      expressly for use therein ("INITIAL PURCHASER INFORMATION").

            (ii) The documents incorporated by reference in the Final
      Memorandum, at the time they were or hereafter, during the period
      mentioned in Section 4(a) hereof, are filed with the Commission, complied
      or will comply, as the case may be, in all material respects with the
      requirements of the Exchange Act.

            (iii) The Company has been duly incorporated and is an existing
      corporation in good standing under the laws of the State of Delaware, with
      corporate power and authority to own, lease and operate its property and
      to conduct its business as described in the Final Memorandum; and the
      Company is duly qualified to do business as a foreign corporation in good
      standing in all other jurisdictions in which its ownership or lease of
      property or the conduct of its business requires such qualification,
      except where the

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      failure to be so qualified would not have a material adverse effect on the
      condition (financial or otherwise), business, properties or results of
      operations of the Company and its consolidated subsidiaries taken as a
      whole (a "CONTINENTAL MATERIAL ADVERSE EFFECT").

            (iv) Each of Continental Micronesia, Inc., Air Micronesia, Inc.,
      ExpressJet Airlines, Inc., ExpressJet Holdings, Inc. and XJT Holdings,
      Inc. (together, the "SUBSIDIARIES") has been duly incorporated and is an
      existing corporation in good standing under the laws of the jurisdiction
      of its incorporation, with corporate power and authority to own, lease and
      operate its properties and to conduct its business as described in the
      Final Memorandum; and each Subsidiary is duly qualified to do business as
      a foreign corporation in good standing in all other jurisdictions in which
      its ownership or lease of property or the conduct of its business requires
      such qualification, except where the failure to be so qualified would not
      have a Continental Material Adverse Effect; all of the issued and
      outstanding capital stock of each Subsidiary has been duly authorized and
      validly issued and is fully paid and nonassessable; and, except as
      described in the Final Memorandum, each Subsidiary's capital stock owned
      by the Company, directly or through subsidiaries, is owned free from
      liens, encumbrances and defects.

            (v) Except as described in the Final Memorandum, the Company is not
      in default in the performance or observance of any obligation, agreement,
      covenant or condition contained in any contract, indenture, mortgage, loan
      agreement, note, lease or other instrument to which it is a party or by
      which it may be bound or to which any of its properties may be subject,
      except for such defaults that would not have a Continental Material
      Adverse Effect. The execution and delivery of this Agreement, the Offered
      Notes, the Exchange Notes and the Execution Documents and the performance
      of this Agreement, the Offered Notes, the Exchange Notes and the Operative
      Agreements to which the Company is or will be a party, the consummation of
      the transactions contemplated herein and therein, the issuance and sale of
      the Offered Notes and the issuance and exchange of the Exchange Notes have
      been duly authorized by all necessary corporate action of the Company and
      will not result in any breach of any of the terms, conditions or
      provisions of, or constitute a default under, or result in the creation or
      imposition of any lien, charge or encumbrance (other than any lien, charge
      or encumbrance created under any Operative Agreement) upon any property or
      assets of the Company pursuant to, any indenture, loan agreement,
      contract, mortgage, note, lease or other instrument to which the Company
      is a party or by which the Company may be bound or to which any of the
      property or assets of the Company is subject, which breach, default, lien,
      charge or encumbrance, individually or in the aggregate, would have a
      Continental Material Adverse Effect, nor will any such execution, delivery
      or performance result in any violation of the provisions of the charter or
      by-laws of the Company or any statute, rule, regulation or order of any
      governmental agency or body or any court having jurisdiction over the
      Company.

            (vi) No consent, approval, authorization, or order of, or filing
      with, any governmental agency or body or any court is required for the
      valid authorization, execution and delivery by the Company of this
      Agreement, the Offered Notes, the Exchange Notes and the Execution
      Documents to which it is or will be a party or for the

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      consummation of the transactions contemplated herein, therein and in the
      other Operative Agreements, except (x) such as may be required under the
      Securities Act, the Trust Indenture Act of 1939, as amended (the "TRUST
      INDENTURE ACT"), the securities or "blue sky" or similar laws of the
      various states and of foreign jurisdictions or rules and regulations of
      the National Association of Securities Dealers, Inc. ("NASD") in
      connection with the registration of the Offered Notes under the Securities
      Act pursuant to the Registration Rights Agreement, (y) filings or
      recordings with the Federal Aviation Administration (the "FAA") and under
      the UCC or other laws in effect in any applicable jurisdiction governing
      the perfection of security interests in the Collateral, which filings or
      recordings referred to in this clause (y) shall have been made, or duly
      presented for filing or recordation, or shall be in the process of being
      duly filed or filed for recordation, on or prior to the Closing Date and
      (z) the order of the Commission declaring the Exchange Offer Registration
      Statement or the Shelf Registration Statement effective.

            (vii) This Agreement has been duly executed and delivered by the
      Company, and the Execution Documents to which the Company will be a party
      and the Offered Notes will be duly executed and delivered by the Company
      on or prior to the Closing Date, as the case may be, and the Exchange
      Notes will be duly executed and delivered by the Company on the date of
      their delivery as described in the Registration Rights Agreement.

            (viii) The Operative Agreements, when the Execution Documents shall
      have been duly executed and delivered by the Company, assuming that the
      Operative Agreements have been duly authorized, executed and delivered by,
      and constitute the legal, valid and binding obligations of, each other
      party thereto, will constitute valid and binding obligations of the
      Company enforceable in accordance with their terms, except (w) as
      enforcement thereof may be limited by bankruptcy, insolvency (including,
      without limitation, all laws relating to fraudulent transfers),
      reorganization, moratorium or other similar laws now or hereafter in
      effect relating to creditors' rights generally, (x) as enforcement thereof
      is subject to general principles of equity (regardless of whether
      enforcement is considered in a proceeding in equity or at law) and (y)
      with respect to indemnification and contribution provisions, as
      enforcement thereof may be limited by applicable law. The Operative
      Agreements will, upon execution and delivery of the Execution Documents,
      conform in all material respects to the descriptions thereof in the Final
      Memorandum.

            (ix) The consolidated financial statements of the Company
      incorporated by reference in the Final Memorandum, together with the
      related notes thereto, present fairly in all material respects the
      financial position of the Company and its consolidated subsidiaries at the
      dates indicated and the consolidated results of operations and cash flows
      of the Company and its consolidated subsidiaries for the periods
      specified. Such financial statements have been prepared in conformity with
      generally accepted accounting principles applied on a consistent basis
      throughout the periods involved, except as otherwise stated therein and
      except that unaudited financial statements do not have all required
      footnotes. The financial statement schedules of the Company, if any,

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      incorporated by reference in the Final Memorandum present the information
      required to be stated therein.

            (x) The Company is a "citizen of the United States" within the
      meaning of Section 40102(a)(15) of Title 49 of the United States Code, as
      amended, and holds an air carrier operating certificate issued pursuant to
      Chapter 447 of Title 49 of the United States Code, as amended, for
      aircraft capable of carrying 10 or more individuals or 6,000 pounds or
      more of cargo. All of the outstanding shares of capital stock of the
      Company have been duly authorized and validly issued and are fully paid
      and non-assessable.

            (xi) When duly executed, authenticated, issued and delivered in the
      manner provided for in the Indenture and sold and paid for as provided in
      this Agreement, the Offered Notes will constitute valid and binding
      obligations of the Company enforceable in accordance with their terms,
      except (w) as enforcement thereof may be limited by bankruptcy, insolvency
      (including, without limitation, all laws relating to fraudulent
      transfers), reorganization, moratorium or other similar laws now or
      hereafter in effect relating to creditors' rights generally, (x) as
      enforcement thereof is subject to general principles of equity (regardless
      of whether enforcement is considered in a proceeding in equity or at law)
      and (y) with respect to indemnification provisions, as enforcement thereof
      may be limited by applicable law, and the holders thereof will be entitled
      to the benefits of the Indenture. The Offered Notes will conform in all
      material respects to the description thereof in the Final Memorandum.

            (xii) When duly executed, authenticated, issued and delivered in the
      manner provided for in the Indenture and the Registration Rights
      Agreement, the Exchange Notes will constitute valid and binding
      obligations of the Company enforceable in accordance with their terms,
      except (w) as enforcement thereof may be limited by bankruptcy, insolvency
      (including, without limitation, all laws relating to fraudulent
      transfers), reorganization, moratorium or other similar laws now or
      hereafter in effect relating to creditors' rights generally, (x) as
      enforcement thereof is subject to general principles of equity (regardless
      of whether enforcement is considered in a proceeding in equity or at law)
      and (y) with respect to indemnification provisions, as enforcement thereof
      may be limited by applicable law, and the holders thereof will be entitled
      to the benefits of the Indenture. The Exchange Notes will conform in all
      material respects to the description thereof in the Final Memorandum.

            (xiii) The security interest created by the Security Agreement will
      be for the benefit of the Holders and the Indemnitees and will constitute,
      on and at all times after the Closing Date until the termination of the
      Security Agreement, valid and perfected Liens on the Collateral purported
      to be covered thereby, subject to no equal or prior Lien, except Permitted
      Liens.

            (xiv) Except as disclosed in the Final Memorandum, the Company and
      the Subsidiaries have good and marketable title to all real properties and
      all other properties and assets owned by them, in each case free from
      liens, encumbrances and defects except where the failure to have such
      title would not have a Continental Material Adverse

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      Effect; and except as disclosed in the Final Memorandum, the Company and
      the Subsidiaries hold any leased real or personal property under valid and
      enforceable leases with no exceptions that would have a Continental
      Material Adverse Effect.

            (xv) Except as disclosed in the Final Memorandum, there is no
      action, suit or proceeding before or by any governmental agency or body or
      court, domestic or foreign, now pending or, to the knowledge of the
      Company, threatened against the Company or any of its subsidiaries or any
      of their respective properties that individually (or in the aggregate in
      the case of any class of related lawsuits), could reasonably be expected
      to result in a Continental Material Adverse Effect or that could
      reasonably be expected to materially and adversely affect the consummation
      of the transactions contemplated by this Agreement, the Offered Notes, the
      Exchange Notes or the Operative Agreements.

            (xvi) Except as disclosed in the Final Memorandum, no labor dispute
      with the employees of the Company or any subsidiary exists or, to the
      knowledge of the Company, is imminent that could reasonably be expected to
      have a Continental Material Adverse Effect.

            (xvii) Each of the Company and the Subsidiaries has all necessary
      consents, authorizations, approvals, orders, certificates and permits of
      and from, and has made all declarations and filings with, all federal,
      state, local and other governmental authorities, all self-regulatory
      organizations and all courts and other tribunals, to own, lease, license
      and use its properties and assets and to conduct its business in the
      manner described in the Final Memorandum, except to the extent that the
      failure to so obtain, declare or file would not have a Continental
      Material Adverse Effect.

            (xviii) Except as disclosed in the Final Memorandum, (x) neither the
      Company nor any of the Subsidiaries is in violation of any statute, rule,
      regulation, decision or order of any governmental agency or body or any
      court, domestic or foreign, relating to the use, disposal or release of
      hazardous or toxic substances (collectively, "ENVIRONMENTAL LAWS"), owns
      or operates any real property contaminated with any substance that is
      subject to any environmental laws, or is subject to any claim relating to
      any environmental laws, which violation, contamination, liability or claim
      individually or in the aggregate is reasonably expected to have a
      Continental Material Adverse Effect, and (y) the Company is not aware of
      any pending investigation which might lead to such a claim that is
      reasonably expected to have a Continental Material Adverse Effect.

            (xvix) The accountants that examined and issued an auditors' report
      with respect to the consolidated financial statements of the Company and
      the financial statement schedules of the Company, if any, included or
      incorporated by reference in the Final Memorandum are independent public
      accountants within the meaning of the Securities Act.

            (xi) The Company is not (based on applicable law as in effect on the
      date hereof) an "investment company", or an entity "controlled" by an
      "investment company",

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      within the meaning of the Investment Company Act of 1940, as amended (the
      "INVESTMENT COMPANY ACT"), required to register under the Investment
      Company Act.

            (xxi) The Offered Notes satisfy the eligibility requirements of Rule
      144A(d)(3) under the Securities Act.

            (xxii) Assuming the accuracy of the representations and warranties
      and compliance with the agreements made by the Initial Purchaser in this
      Agreement, the offer and sale of the Offered Notes to the Initial
      Purchaser in the manner contemplated by this Agreement will be exempt from
      the registration requirements of the Securities Act by reason of Section
      4(2) thereof and Regulation S thereunder and, except as required under the
      Registration Rights Agreement, it is not necessary to qualify the
      Indenture under the Trust Indenture Act in respect of any such offer or
      sale.

            (xxiii) Neither the Company nor any of its affiliates, nor any
      person acting on their behalf (other than the Initial Purchaser), (i) has,
      within the six-month period prior to the date hereof, offered or sold in
      the United States or to any U.S. person (as such terms are defined in
      Regulation S under the Securities Act) the Offered Notes or any security
      of the same class or series as the Offered Notes or (ii) has offered or
      will solicit any offer to buy, or will offer or sell the Offered Notes (x)
      in the United States by any form of "general solicitation" or "general
      advertising" within the meaning of Rule 502(c) under the Securities Act or
      in any manner involving a public offering within the meaning of Section
      4(2) of the Securities Act or (y) with respect to any securities sold in
      reliance on Rule 903 of Regulation S under the Securities Act, by means of
      any "directed selling efforts" within the meaning of Rule 902(c) of
      Regulation S. The Company has not entered and will not enter into any
      contractual arrangement with respect to the distribution of the Offered
      Notes except for this Agreement. The Company and its affiliates and any
      person acting on its or their behalf have complied and will comply with
      the offering restrictions requirement of Regulation S.

            (xxiv) Simat, Helliesen & Eichner, Inc. ("SH&E") is not an affiliate
      of the Company and, to the knowledge of the Company, does not have a
      substantial interest, direct or indirect, in the Company. To the knowledge
      of the Company, none of the officers and directors of SH&E is connected
      with the Company or any of its affiliates as an officer, employee,
      promoter, underwriter, trustee, partner, director or person performing
      similar functions.

            (xxv) The Company (A) makes and keeps books, records and accounts,
      which, in reasonable detail, accurately and fairly reflect the
      transactions and dispositions of the material assets of the Company and
      its consolidated subsidiaries and (B) maintains a system of internal
      accounting controls sufficient to provide reasonable assurances that (1)
      transactions are executed in accordance with management's general or
      specific authorization; (2) transactions are recorded as necessary: (x) to
      permit preparation of financial statements in conformity with generally
      accepted accounting principles or any other criteria applicable to such
      statements and (y) to maintain accountability for assets; (3) access to
      material assets is permitted only in accordance with management's general

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      or specific authorization; and (4) the recorded accountability for
      material assets is compared with the existing material assets at
      reasonable intervals and appropriate action is taken with respect to any
      differences.

            (xxvi) The information provided by the Company to SH&E for use by
      SH&E in preparation of its reports relating to the Collateral dated as of
      October 31, 2002 and January 24, 2003, taken as a whole with respect to
      each such report, did not contain an untrue statement of material fact or
      omit to state a material fact necessary to make such information not
      misleading.

      (b) The parties agree that any certificate signed by a duly authorized
officer of the Company and delivered to the Initial Purchaser, or to counsel for
the Initial Purchaser, on the Closing Date and in connection with this Agreement
or the offering of the Offered Notes, shall be deemed a representation and
warranty by (and only by) the Company to the Initial Purchaser as to the matters
covered thereby.

      2. PURCHASE, SALE AND DELIVERY OF OFFERED NOTES. (a) On the basis of the
representations, warranties and agreements herein contained, but subject to the
terms and the conditions herein set forth, the Company agrees to sell to the
Initial Purchaser, and the Initial Purchaser agrees to purchase from the
Company, the aggregate principal amount of Offered Notes at a purchase price of
95% of the principal amount thereof plus accrued interest, if any, from the date
of issuance, less an amount equal to $2,833,333, representing a commission of
$2,500,000 and a structuring fee of $333,333.

      (b) The Company shall issue and deliver against payment of the purchase
price the Offered Notes purchased by the Initial Purchaser hereunder and to be
offered and sold by the Initial Purchaser in reliance on Regulation S under the
Securities Act (the "REGULATION S SECURITIES") in the form of one or more global
securities in definitive, fully registered form without interest coupons (the
"REGULATION S GLOBAL SECURITIES") which shall be deposited with the Trustee as
custodian for The Depository Trust Company ("DTC") and registered in the name of
a nominee of DTC, for the respective accounts of Euroclear Bank S.A./N.V., as
operator of the Euroclear System ("EUROCLEAR"), and Clearstream Banking societe
anonyme, Luxembourg ("CLEARSTREAM"). On or prior to the 40th day after the later
of the day on which the Offered Notes are first offered to persons other than
distributors (as defined in Regulation S under the Securities Act) and the
Closing Date, beneficial interests in the Regulation S Global Securities may be
held only through Euroclear and Clearstream. Regulation S Securities shall be
available only in book-entry form, except in the limited circumstances described
in the Final Memorandum.

      (c) The Company shall issue and deliver against payment of the purchase
price the Offered Notes to be purchased by the Initial Purchaser hereunder and
to be offered and sold by the Initial Purchaser to QIBs in reliance on Rule 144A
under the Securities Act (the "144A SECURITIES") in the form of one or more
permanent global securities in definitive, fully registered form without
interest coupons (the "RESTRICTED GLOBAL SECURITIES" and, together with the
Regulation S Global Securities, the "GLOBAL SECURITIES") which shall be
deposited with the related Trustee as custodian for DTC and registered in the
name of a nominee of DTC for credit to the account of the Initial Purchaser.
Each Restricted Global Security shall include the legend

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regarding restrictions on transfer set forth under "Transfer Restrictions" in
the Final Memorandum. The Regulation S Securities and the 144A Securities shall
be assigned separate CUSIP numbers.

      (d) Payment for the Offered Notes shall be made by the Initial Purchaser
in federal (same day) funds by official check or checks or wire transfer to an
account previously designated to the Initial Purchaser by the Company at 10:00
a.m. (New York time), on May 9, 2003, or at such other date and time as may be
agreed upon by the Company and the Initial Purchaser (such date and time of
delivery and payment for the Offered Notes being herein referred to as the
"CLOSING DATE"), against delivery to the Trustee as custodian for DTC at the
offices of Hughes Hubbard & Reed LLP at One Battery Park Plaza, New York, New
York 10004 (or at such other location as may be agreed to by the Initial
Purchaser and the Company) of (i) the Regulation S Global Securities
representing all of the Regulation S Securities for the respective accounts of
the DTC participants for Euroclear and Clearstream and (ii) the Restricted
Global Securities representing all of the 144A Securities. The Regulation S
Global Securities and the Restricted Global Securities shall be made available
for checking at the office of Hughes Hubbard & Reed LLP (or at such other
location as may be agreed to by the Initial Purchaser and the Company) not later
than 1:00 p.m. on the business day prior to the Closing Date.

      (e) Notwithstanding the foregoing, any Offered Notes sold by the Initial
Purchaser pursuant to Section 5(a) hereof to Institutional Accredited Investors
who are not QIBs and are not purchasers of interests in the Regulation S Global
Securities shall be issued in definitive, fully registered form without interest
coupons ("DEFINITIVE SECURITIES") and shall bear the legend relating thereto set
forth under "Transfer Restrictions" in the Final Memorandum, but shall be paid
for in the manner set forth in Section 2(d) hereof. Upon transfer of Definitive
Securities to a QIB or in accordance with Regulation S under the Securities Act,
such Definitive Securities shall be exchanged for an interest in the appropriate
Global Security. Definitive Securities shall be registered in such names and in
such authorized denominations as the Initial Purchaser may request not less than
two full business days in advance of the Closing Date.

      3. CONDITIONS OF THE OBLIGATIONS OF THE INITIAL PURCHASER. The Initial
Purchaser's obligations to purchase and pay for the Offered Notes pursuant to
this Agreement are subject to the following conditions:

      (a) On the Closing Date, the Initial Purchaser shall have received an
opinion of Hughes Hubbard & Reed LLP, counsel for the Company, dated the Closing
Date, in form and substance reasonably satisfactory to the Initial Purchaser.

      (b) On the Closing Date, the Initial Purchaser shall have received an
opinion of the General Counsel of the Company, dated the Closing Date, in form
and substance reasonably satisfactory to the Initial Purchaser.

      (c) On the Closing Date, the Initial Purchaser shall have received an
opinion of Richards, Layton & Finger, P.A., counsel for Wilmington Trust
Company, individually and as Trustee, dated the Closing Date, in form and
substance reasonably satisfactory to the Initial Purchaser.

                                       10
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      (d) On the Closing Date, the Initial Purchaser shall have received an
opinion of Milbank, Tweed, Hadley & McCloy LLP, special New York counsel for the
Liquidity Provider and the Liquidity Provider Guarantor, dated the Closing Date,
in form and substance reasonably satisfactory to the Initial Purchaser.

      (e) On the Closing Date, the Initial Purchaser shall have received an
opinion of in-house counsel for the Liquidity Provider and the Liquidity
Provider Guarantor, dated the Closing Date, in form and substance reasonably
satisfactory to the Initial Purchaser.

      (f) On the Closing Date, the Initial Purchaser shall have received an
opinion of Latham & Watkins, special New York counsel for the Policy Provider,
dated the Closing Date, in form and substance reasonably satisfactory to the
Initial Purchaser.

      (g) On the Closing Date, the Initial Purchaser shall have received an
opinion of in-house counsel for the Policy Provider, dated the Closing Date, in
form and substance reasonably satisfactory to the Initial Purchaser.

      (h) On the Closing Date, the Initial Purchaser shall have received an
opinion of Lytle, Soule & Curlee, special counsel in Oklahoma City, Oklahoma,
dated the Closing Date, in form and substance reasonably satisfactory to the
Initial Purchaser.

      (i) On the Closing Date, the Initial Purchaser shall have received an
opinion as to the perfection of the security interest in the Collateral of
Richards, Layton & Finger, P.A., dated the Closing Date, in form and substance
reasonably satisfactory to the Initial Purchaser.

      (j) On the Closing Date, the Initial Purchaser shall have received an
opinion of Milbank, Tweed, Hadley & McCloy LLP, counsel for the Initial
Purchaser, dated the Closing Date, with respect to the validity of the Offered
Notes, the Final Memorandum, the exemption from registration for the offer and
sale of the Offered Notes to the Initial Purchaser as contemplated hereby and
other related matters as the Initial Purchaser may reasonably require, and the
Company shall have furnished to such counsel such documents as they reasonably
request for the purpose of enabling them to pass upon such matters.

      (k) Subsequent to the execution and delivery of this Agreement, there
shall not have occurred any change, or any development involving a prospective
change, in the condition (financial or other), business, properties or results
of operations of the Company and its subsidiaries considered as one enterprise
that, in the Initial Purchaser's judgment, is material and adverse and that
makes it, in the Initial Purchaser's judgment, impracticable to market the
Offered Notes on the terms and in the manner contemplated by the Final
Memorandum.

      (l) The Initial Purchaser shall have received on the Closing Date a
certificate, dated the Closing Date and signed by the President or any Vice
President of the Company, to the effect that the representations and warranties
of the Company contained in this Agreement are true and correct as of the
Closing Date as if made on the Closing Date (except to the extent that they
relate solely to an earlier date, in which case they shall be true and accurate
as of such

                                       11
<PAGE>
earlier date), that the Company has performed all its obligations to be
performed hereunder on or prior to the Closing Date and that, subsequent to the
execution and delivery of this Agreement, there shall not have occurred any
material adverse change, or any development or event involving a prospective
material adverse change, in the condition (financial or other), business,
properties or results of operations of the Company and its subsidiaries
considered as one enterprise, except as set forth in or contemplated by the
Final Memorandum.

      (m) The Initial Purchaser shall have received from Ernst & Young LLP a
letter, dated the date hereof, in form and substance satisfactory to the Initial
Purchaser.

      (n) Subsequent to the execution and delivery of this Agreement and prior
to the Closing Date, there shall not have been any downgrading in the rating
accorded any of the Company's securities (except for any pass through
certificates) by any "nationally recognized statistical rating organization", as
such term is defined for purposes of Rule 436(g)(2) under the Securities Act, or
any public announcement that any such organization has under surveillance or
review, in each case for possible change, its ratings of any such securities
other than pass through certificates (other than an announcement with positive
implications of a possible upgrading, and no implication of a possible
downgrading, of such rating).

      (o) SH&E shall have furnished to the Initial Purchaser a letter, addressed
to the Company and dated the Closing Date, confirming that SH&E and each of its
directors and officers (i) is not an affiliate of the Company or any of its
affiliates, (ii) does not have any substantial interest, direct or indirect, in
the Company or any of its affiliates and (iii) is not connected with the Company
or any of its affiliates as an officer, employee, promoter, underwriter,
trustee, partner, director or person performing similar functions.

      (p) At the Closing Date, each of the Execution Documents shall have been
duly executed and delivered by each of the parties thereto; and the
representations and warranties of the Company contained in each of such executed
Execution Documents shall be true and correct as of the Closing Date (except to
the extent that they relate solely to an earlier date, in which case they shall
be true and correct as of such earlier date) and the Initial Purchaser shall
have received a certificate of the President or a Vice President of the Company,
dated as of the Closing Date, to such effect.

      (q) On the Closing Date, the Offered Notes shall be rated "B1" by Moody's
Investors Service, Inc.

      (r) The Initial Purchaser shall have received from Ernst & Young LLP a
letter, dated the Closing Date, which meets the requirements of subsection (m)
of this Section 3, except that the specified date referred to in such subsection
will be a date not more than three business days prior to the Closing Date for
the purposes of this subsection.

      (s) On the Closing Date (a) Amendment No. 1 to Security Agreement shall
have been duly filed for recordation with the FAA in accordance with the Federal
Aviation Act and (b) each Financing Statement shall have been duly filed in the
appropriate jurisdiction.

                                       12
<PAGE>
      The Company will furnish the Initial Purchaser with such conformed copies
of such opinions, certificates, letters and documents as the Initial Purchaser
reasonably requests.

      4. CERTAIN AGREEMENTS OF THE COMPANY. The Company agrees with the Initial
Purchaser that:

      (a) During the period described in the following sentence of this Section
4(a), the Company shall advise the Initial Purchaser promptly of any proposal to
amend or supplement the Final Memorandum (except by documents filed under the
Exchange Act) and will not effect such amendment or supplement (except by
documents filed under the Exchange Act) without the Initial Purchaser's consent,
which consent will not be unreasonably withheld. If, at any time prior to the
completion of the resale of the Offered Notes by the Initial Purchaser, any
event shall occur as a result of which it is necessary to amend or supplement
the Final Memorandum in order to make the statements therein, in the light of
the circumstances when the Final Memorandum is delivered to a purchaser, not
misleading in any material respect, the Company shall prepare and furnish to the
Initial Purchaser, at the Company's own expense, either amendments or
supplements to the Final Memorandum so that the statements in the Final
Memorandum as so amended or supplemented will not, in the light of the
circumstances when the Final Memorandum is delivered to a purchaser, be
misleading in any material respect. Neither the Initial Purchaser's consent to,
nor the Initial Purchaser's delivery to offerees or investors of, any such
amendment or supplement shall constitute a waiver of any of the conditions set
forth in Section 3 hereof.

      (b) Notwithstanding any provision of Section 4(a) hereof to the contrary,
the Company's obligations under Section 4(a) hereof shall terminate on the
earlier to occur of (i) the effective date of the Exchange Offer Registration
Statement or Shelf Registration Statement and (ii) the date upon which the
Initial Purchaser and the Initial Purchaser's affiliates cease to hold Offered
Notes acquired as part of the Initial Purchaser's initial distributions.

      (c) The Company will furnish to the Initial Purchaser copies of the
Preliminary Memorandum, the Final Memorandum and all amendments and supplements
to such documents (excluding all documents incorporated by reference therein),
in each case as soon as available and in such quantities as the Initial
Purchaser reasonably requests. So long as any of the Offered Notes are
"Registrable Securities" (as defined in the Registration Rights Agreement), at
any time when the Company is not subject to Section 13 or 15(d) of the Exchange
Act, the Company will provide to any holder of such Registrable Securities, or
to any prospective purchaser of such Registrable Securities designated by a
holder, upon the request of such holder or prospective purchaser, any
information required to be delivered to holders and prospective purchasers of
the Offered Notes pursuant to Rule 144A(d)(4) under the Securities Act. This
covenant is intended to be for the benefit of the holders, and prospective
purchasers designated by such holders from time to time, of such Registrable
Securities.

      (d) If requested by the Initial Purchaser, the Company shall use its
reasonable efforts to permit the Offered Notes to be designated PORTAL
securities in accordance with the rules and regulations adopted by the NASD
relating to trading in the PORTAL Market.

                                       13
<PAGE>
      (e) The Company shall, in cooperation with the Initial Purchaser, endeavor
to arrange for the qualification of the Offered Notes for offer and sale under
the applicable securities or "blue sky" laws of such jurisdictions in the United
States as the Initial Purchaser reasonably designates and will endeavor to
maintain such qualifications in effect so long as required for the resale of the
Offered Notes by the Initial Purchaser; PROVIDED that the Company shall not be
required to (i) qualify as a foreign corporation or as a dealer in securities,
(ii) file a general consent to service of process or (iii) subject itself to
taxation in any such jurisdiction.

      (f) During the period of ten years after the Closing Date, the Company
will promptly furnish to the Initial Purchaser, upon request, copies of all
Annual Reports on Form 10-K and any definitive proxy statement of the Company
filed with the Commission; PROVIDED that providing a website address at which
such Annual Reports and any such definitive proxy statements may be accessed
will satisfy this clause (f).

      (g) Between the date of this Agreement and the Closing Date, the Company
shall not, without the prior written consent of the Initial Purchaser, offer,
sell, or enter into any agreement to sell (as public debt securities registered
under the Securities Act or as debt securities which may be resold in a
transaction exempt from the registration requirements of the Securities Act in
reliance on Rule 144A thereunder (other than the Offered Notes) and which are
marketed through the use of a disclosure document containing substantially the
same information as a prospectus for similar debt securities registered under
the Securities Act), any notes of the Company secured by Spare Parts or
Appliances (or rights relating thereto).

      (h) During the period of two years after the Closing Date, the Company
will, upon request, furnish to the Initial Purchaser and any holder of Offered
Notes or Exchange Notes, as the case may be, a copy of the restrictions on
transfer applicable to such Offered Notes or Exchange Notes.

      (i) During the period of two years after the Closing Date, the Company
will not, and will not permit any of its affiliates (as defined in Rule 144
under the Securities Act) to, resell any of the Offered Notes or Exchange Notes
that have been reacquired by any of them.

      (j) During the period of two years after the Closing Date (or, if shorter,
the period beginning on the Closing Date and ending on the date on which there
ceases to be any Registrable Securities), the Company will not be or become an
open-end investment company, unit investment trust or face-amount certificate
company that is or is required to be registered under Section 8 of the
Investment Company Act, or a closed-end investment company required to be
registered, but not registered, under the Investment Company Act.

      (k) Neither the Company nor any affiliate of the Company will sell, offer
for sale or solicit offers to buy or otherwise negotiate in respect of any
security (as defined in the Securities Act) which would be integrated with the
sale of the Offered Notes in a manner which would require the registration under
the Securities Act of the Offered Notes sold to the Initial Purchaser pursuant
to this Agreement.

                                       14
<PAGE>
      (l) The Company shall not take any action prohibited by Regulation M under
the Exchange Act in connection with the distribution of the Offered Notes
contemplated hereby.

      5. OFFERING OF SECURITIES; RESTRICTIONS ON TRANSFER.

      (a) The Initial Purchaser represents and warrants that it is an
"accredited investor" within the meaning of Regulation D under the Securities
Act. The Initial Purchaser represents, warrants and agrees with the Company that
(i) it has not solicited and will not solicit offers for, or offer or sell, the
Offered Notes by any form of "general solicitation" or "general advertising" (as
those terms are used in Regulation D under the Securities Act) or in any manner
involving a public offering within the meaning of Section 4(2) of the Securities
Act and (ii) it has solicited and will solicit offers for the Offered Notes only
from, and has offered and will offer and sell the Offered Notes only to (A) in
the case of offers and sales inside the United States, persons that it
reasonably believes to be (1) QIBs in compliance with Rule 144A under the
Securities Act or (2) not more than two Institutional Accredited Investors that,
prior to their purchase of the Offered Notes, execute and deliver to the Initial
Purchaser a letter in the form annexed as Annex III to the Final Memorandum and
(B) in the case of offers and sales outside the United States, persons other
than U.S. persons (including dealers or other professional fiduciaries in the
United States acting on a discretionary basis for foreign beneficial owners
(other than an estate or trust)) in accordance with Regulation S under the
Securities Act; provided, in the case of each of clauses (A) and (B) that, in
purchasing such Offered Notes, such persons are deemed to have represented and
agreed as provided in the Final Memorandum under the caption "Transfer
Restrictions".

      (b) The Initial Purchaser represents, warrants and agrees with respect to
offers and sales outside the United States that:

            (i) it understands that no action has been or will be taken in any
      jurisdiction by the Company that would permit a public offering of the
      Offered Notes, or possession or distribution of either the Preliminary
      Memorandum or the Final Memorandum or any other offering or publicity
      material relating to the Offered Notes, in any country or jurisdiction
      where action for that purpose is required;

            (ii) it will comply with all applicable laws and regulations in each
      jurisdiction in which it acquires, offers, sells or delivers Offered Notes
      or has in its possession or distributes either the Preliminary Memorandum
      or the Final Memorandum or any other offering or publicity material
      relating to the Offered Notes, in all cases at its own expense;

            (iii) the Offered Notes have not been registered under the
      Securities Act and may not be offered or sold within the United States or
      to, or for the account or benefit of, U.S. persons except in accordance
      with Rule 144A or Regulation S under the Securities Act or pursuant to
      another exemption from the registration requirements of the Securities
      Act;

            (iv) it has offered the Offered Notes and will offer and sell the
      Offered Notes (A) as part of its distribution at any time and (B)
      otherwise until 40 days after the later of

                                       15
<PAGE>
      the commencement of the offering and the Closing Date, only in accordance
      with Rule 903 of Regulation S or as otherwise permitted in Section 5(a)
      hereof; neither the Initial Purchaser, its affiliates nor any persons
      acting on its or their behalf have engaged or will engage in any "directed
      selling efforts" (within the meaning of Regulation S) with respect to the
      Offered Notes, and the Initial Purchaser, its affiliates and any such
      persons have complied and will comply with the offering restrictions
      requirement of Regulation S;

            (v) it (A) has not offered or sold and, prior to the date six months
      after the Closing Date, will not offer or sell any Offered Notes to
      persons in the United Kingdom except to persons whose ordinary activities
      involve them in acquiring, holding, managing or disposing of investments
      (as principal or agent) for the purposes of their businesses or otherwise
      in circumstances which have not resulted and will not result in an offer
      to the public in the United Kingdom within the meaning of the Public
      Offers of Securities Regulations 1995; (B) has complied and will comply
      with all applicable provisions of the Financial Services and Markets Act
      2000 (the "FSMA") with respect to anything done by it in relation to the
      Offered Notes in, from or otherwise involving the United Kingdom; and (C)
      will only communicate or cause to be communicated any invitation or
      inducement to engage in investment activity (within the meaning of section
      21 of the FSMA) received by it in connection with the issue or sale of the
      Offered Notes in circumstances in which section 21(1) of the FSMA does not
      apply to the Company;

            (vi) it agrees that, at or prior to confirmation of sales of the
      Offered Notes, it will have sent to each distributor, dealer or person
      receiving a selling concession, fee or other remuneration that purchases
      Offered Notes from it during the restricted period a confirmation or
      notice to substantially the following effect:

            "The Notes covered hereby have not been registered under the U.S.
            Securities Act of 1933 (the "Securities Act") and may not be offered
            and sold within the United States or to, or for the account or
            benefit of, U.S. persons (i) as part of their distribution at any
            time or (ii) otherwise until 40 days after the later of the
            commencement of the offering and the closing date, except in either
            case in accordance with Regulation S (or Rule 144A if available)
            under the Securities Act. Terms used above have the meaning given to
            them by Regulation S."

Terms used in this Section 5 have the meanings given to them by Regulation S.

      6. INDEMNIFICATION AND CONTRIBUTION.

      (a) The Company agrees to indemnify and hold harmless the Initial
Purchaser, and each Person, if any, who controls the Initial Purchaser within
the meaning of either Section 15 of the Securities Act or Section 20 of the
Exchange Act from and against any and all losses, claims, damages and
liabilities (including, without limitation, any legal or other expenses
reasonably incurred by the Initial Purchaser or any such controlling person in
connection with defending or investigating any such action or claim) caused by
any untrue statement or alleged untrue statement of a material fact contained in
the Preliminary Memorandum or the Final Memorandum (in each case, as
supplemented or amended) or caused by any omission or alleged omission to state
therein a material fact necessary to make the statements therein in the light of

                                       16
<PAGE>
the circumstances under which they were made not misleading, except insofar as
such losses, claims, damages or liabilities are caused by any such untrue
statement or omission or alleged untrue statement or omission based upon Initial
Purchaser Information; PROVIDED, HOWEVER, that the foregoing indemnity agreement
with respect to the Preliminary Memorandum shall not inure to the benefit of the
Initial Purchaser, or to the benefit of any person controlling the Initial
Purchaser, with respect to any such losses, claims, damages or liabilities
asserted by a person who purchased Offered Notes from the Initial Purchaser, if
a copy of the Final Memorandum (as then amended or supplemented if the Company
shall have furnished or filed with the Commission any amendments or supplements
thereto) was not sent or given by or on behalf of the Initial Purchaser to such
person at or prior to the written confirmation of the sale of such Offered Notes
to such person, and if the Final Memorandum (as so amended or supplemented)
would have cured the defect giving rise to such losses, claims, damages or
liabilities unless such failure to deliver the Final Memorandum was a result of
noncompliance by the Company with its delivery requirements set forth in Section
4(a) hereof.

      (b) The Initial Purchaser agrees to indemnify and hold harmless the
Company, its directors, its officers and each person, if any, who controls the
Company within the meaning of either Section 15 of the Securities Act or Section
20 of the Exchange Act to the same extent as the foregoing indemnity from the
Company to the Initial Purchaser, but only with reference to the Initial
Purchaser Information.

      (c) In case any proceeding (including any governmental investigation)
shall be instituted involving any person in respect of which indemnity may be
sought pursuant to either Section 6(a) or Section 6(b) hereof, such person (the
"INDEMNIFIED PARTY") shall promptly notify the person against whom such
indemnity may be sought (the "INDEMNIFYING PARTY") in writing. The indemnifying
party, upon request of the indemnified party, shall, and the indemnifying party
may elect to, retain counsel reasonably satisfactory to the indemnified party to
represent the indemnified party and any others the indemnifying party may
designate in such proceeding and the indemnifying party shall pay the fees and
disbursements of such counsel related to such proceeding. In any such
proceeding, any indemnified party shall have the right to retain its own
counsel, but the fees and expenses of such counsel shall be at the expense of
such indemnified party unless (i) the indemnifying party and the indemnified
party shall have mutually agreed to the retention of such counsel, (ii) the
named parties to any such proceeding (including any impleaded parties) include
both the indemnifying party and the indemnified party and representation of both
parties by the same counsel would be inappropriate due to actual or potential
differing interests between them, or (iii) the indemnifying party shall have
failed to retain counsel as required by the prior sentence to represent the
indemnified party within a reasonable amount of time. It is understood that the
indemnifying party shall not, in connection with any proceeding or related
proceedings in the same jurisdiction, be liable for the fees and expenses of
more than one separate firm (in addition to any local counsel) for all such
indemnified parties and that all such fees and expenses shall be reimbursed as
they are incurred. Such firm shall be designated in writing by the Initial
Purchaser in the case of parties indemnified pursuant to Section 6(a) hereof and
by the Company in the case of parties indemnified pursuant to Section 6(b)
hereof. The indemnifying party shall not be liable for any settlement of any
proceeding effected without its written consent, but if settled with such
consent or if there be a final judgment for the plaintiff, the indemnifying
party agrees to indemnify the

                                       17
<PAGE>
indemnified party from and against any loss or liability by reason of such
settlement or judgment. Notwithstanding the foregoing sentence, if at any time
an indemnified party shall have requested in writing an indemnifying party to
reimburse the indemnified party for fees and expenses of counsel as contemplated
by the second and third sentences of this Section 6(c), the indemnifying party
agrees that it shall be liable for any settlement of any proceeding effected
without its written consent if (i) such settlement is entered into more than 90
days after receipt by such indemnifying party of the aforesaid request and (ii)
such indemnifying party shall not have reimbursed the indemnified party in
accordance with such request prior to the date of such settlement, unless such
fees and expenses are being disputed in good faith. The indemnifying party at
any time may, subject to the last sentence of this Section 6(c), settle or
compromise any proceeding described in this Section 6(c) at the expense of the
indemnifying party. No indemnifying party shall, without the prior written
consent of the indemnified party, effect any settlement of any pending or
threatened proceeding in respect of which any indemnified party is or could have
been a party and indemnity could have been sought hereunder by such indemnified
party, unless such settlement (i) includes an unconditional release of such
indemnified party from all liability on claims that are the subject matter of
such proceeding and (ii) does not include a statement as to, or an admission of,
fault, culpability or a failure to act by or on behalf of an indemnified party.

      (d) To the extent the indemnification provided for in Section 6(a) or
Section 6(b) hereof is required to be made but is unavailable to an indemnified
party or insufficient in respect of any losses, claims, damages or liabilities,
then the applicable indemnifying party under such Section, in lieu of
indemnifying such indemnified party thereunder, shall contribute to the amount
paid or payable by such indemnified party as a result of such losses, claims,
damages or liabilities (i) in such proportion as is appropriate to reflect the
relative benefits received by the Company, on the one hand, and the Initial
Purchaser, on the other hand, from the offering of the Offered Notes or (ii) if
the allocation provided by clause (i) above is not permitted by applicable law,
in such proportion as is appropriate to reflect not only the relative benefits
referred to in clause (i) above but also the relative fault of the Company on
the one hand and the Initial Purchaser on the other hand in connection with the
statements or omissions that resulted in such losses, claims, damages or
liabilities, as well as any other relevant equitable considerations. The
relative benefits received by the Company on the one hand and the Initial
Purchaser on the other hand in connection with the offering of the Offered Notes
shall be deemed to be in the same respective proportions as the proceeds from
the offering of the Offered Notes received by the Company (before deducting
expenses) and the total underwriting discounts received by the Initial
Purchaser, bear to the aggregate offering price of the Offered Notes. The
relative fault of the Company on the one hand and of the Initial Purchaser on
the other hand shall be determined by reference to, among other things, whether
the untrue or alleged untrue statement of a material fact or the omission or
alleged omission to state a material fact relates to information supplied by the
Company or information supplied by the Initial Purchaser, and the parties'
relative intent, knowledge, access to information and opportunity to correct or
prevent such statement or omission.

      (e) The Company and the Initial Purchaser agree that it would not be just
or equitable if contribution pursuant to this Section 6 were determined by PRO
RATA allocation or by any other method of allocation that does not take account
of the equitable considerations referred

                                       18
<PAGE>
to in Section 6(d) hereof. The amount paid or payable by an indemnified party as
a result of the losses, claims, damages and liabilities referred to in Section
6(d) hereof shall be deemed to include, subject to the limitations set forth
above, any legal or other expenses reasonably incurred by such indemnified party
in connection with investigating or defending any such action or claim.
Notwithstanding the provisions of this Section 6, the Initial Purchaser shall
not be required to contribute any amount in excess of the amount by which the
total price at which the Offered Notes resold by it in the initial placement of
such Offered Notes were offered to investors exceeds the amount of any damages
that the Initial Purchaser has otherwise been required to pay by reason of such
untrue or alleged untrue statement or omission or alleged omission. No person
guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of
the Securities Act) shall be entitled to contribution from any person who was
not guilty of such fraudulent misrepresentation. The indemnity and contribution
provisions contained in this Section 6 and the representations and warranties of
the Company contained in this Agreement shall remain operative and in full force
and effect regardless of (i) any termination of this Agreement, (ii) any
investigation made by or on behalf of the Initial Purchaser or any person
controlling the Initial Purchaser or by or on behalf of the Company, its
officers or directors or any person controlling the Company, and (iii)
acceptance of and payment for any of the Offered Notes. The remedies provided
for in this Section 6 are not exclusive and shall not limit any rights or
remedies which may otherwise be available to any indemnified party at law or in
equity.

      7. SURVIVAL OF CERTAIN REPRESENTATIONS AND OBLIGATIONS. The respective
indemnities, agreements, representations, warranties and other statements of the
Company or its officers and of the Initial Purchaser set forth in or made
pursuant to this Agreement will remain in full force and effect, regardless of
any termination of this Agreement, any investigation, or statement as to the
results thereof, made by or on behalf of the Initial Purchaser, the Company or
any of their respective representatives, officers or directors or any
controlling person and will survive delivery of and payment for the Offered
Notes. If for any reason the purchase of the Offered Notes by the Initial
Purchaser is not consummated, the Company shall remain responsible for the
expenses to be paid or reimbursed by it pursuant to Section 9 hereof and the
respective obligations of the Company and the Initial Purchaser pursuant to
Section 6 hereof shall remain in effect. If the purchase of the Offered Notes by
the Initial Purchaser is not consummated for any reason other than solely
because of the occurrence of the termination of the Agreement pursuant to
Section 8 hereof, the Company will reimburse the Initial Purchaser for all
out-of-pocket expenses (including reasonable fees and disbursements of counsel)
reasonably incurred by the Initial Purchaser in connection with the offering of
such Offered Notes and will comply with its obligations under Sections 6 and 9
hereof.

      8. TERMINATION. This Agreement shall be subject to termination by notice
given by the Initial Purchaser to the Company, if (a) after the execution and
delivery of this Agreement and prior to the Closing Date (i) trading generally
shall have been materially suspended or materially limited on or by, as the case
may be, any of the New York Stock Exchange, the American Stock Exchange or the
NASD, (ii) trading of any securities of the Company shall have been suspended on
any exchange or in any over-the-counter market, (iii) a major disruption of
settlements of securities or clearance services in the United States that would
materially impair settlement and clearance with respect to the Offered Notes,
(iv) any general moratorium on commercial banking activities in New York shall
have been declared by either

                                       19
<PAGE>
Federal or New York State authorities or (v) there shall have occurred any
attack on, outbreak or escalation of hostilities or act of terrorism involving,
the United States, or any change in financial markets or any calamity or crisis
that, in each case, in the judgment of the Initial Purchaser, is material and
adverse and (b) in the case of any of the events specified in clauses (a)(i)
through (v), such event singly or together with any other such event makes it,
in the judgment of the Initial Purchaser, impracticable to market the Offered
Notes on the terms and in the manner contemplated in the Final Memorandum.

      9. PAYMENT OF EXPENSES. (a) As between the Company and the Initial
Purchaser, the Company shall pay all expenses incidental to the performance of
the Company's obligations under this Agreement, including the following:

            (i) expenses incurred in connection with (A) qualifying the Offered
      Notes or the Exchange Notes for offer and sale under the applicable
      securities or "blue sky" laws of such jurisdictions in the United States
      as the Initial Purchaser reasonably designates (including filing fees and
      fees and disbursements of counsel for the Initial Purchaser in connection
      therewith), (B) endeavoring to maintain such qualifications in effect so
      long as required for the distribution of such Offered Notes, (C) the
      review (if any) of the offering of the Offered Notes or the Exchange Notes
      by the NASD, (D) the determination of the eligibility of the Offered Notes
      or the Exchange Notes for investment under the laws of such jurisdictions
      as the Initial Purchaser may designate, (E) the preparation and
      distribution of any blue sky or legal investment memorandum by counsel for
      the Initial Purchaser and (F) qualifying the Offered Notes for trading in
      The PortalSM Market of the Nasdaq Stock Market and any expenses incidental
      thereto;

            (ii) expenses incurred in connection with the preparation and
      distribution to the Initial Purchaser and the dealers (whose names and
      addresses the Initial Purchaser will furnish to the Company) to which
      Offered Notes or the Exchange Notes may have been sold by the Initial
      Purchaser on its behalf and to any other dealers upon request, of
      amendments or supplements to the Final Memorandum in order to make the
      statements therein, in the light of the circumstances when the Final
      Memorandum is delivered to a purchaser, not materially misleading;

            (iii) expenses incurred in connection with the preparation, printing
      and distribution of the Preliminary Memorandum, the Final Memorandum and
      any amendments thereof or supplements thereto;

            (iv) expenses incurred in connection with the preparation, printing
      and distribution of this Agreement, the Offered Notes, the Exchange Notes
      and the Execution Documents;

            (v) expenses incurred in connection with the delivery of the Offered
      Notes to the Initial Purchaser;

            (vi) reasonable fees and disbursements of the counsel and
      accountants for the Company;

                                       20
<PAGE>
            (vii) to the extent the Company is so required under any Operative
      Agreement to which it is a party, the fees and expenses of the Trustee and
      the reasonable fees and disbursements of its counsel;

            (viii) fees charged by rating agencies for rating the Offered Notes
      or the Exchange Notes at the Company's request (including annual
      surveillance fees related to the Offered Notes or the Exchange Notes as
      long as they are outstanding);

            (ix) all fees and expenses relating to appraisals of the Pledged
      Spare Parts; and

            (x) all other reasonable out-of-pocket expenses incurred by the
      Initial Purchaser in connection with the transactions contemplated by this
      Agreement;

PROVIDED, however, that notwithstanding the foregoing the fees and disbursements
of counsel for the Initial Purchaser shall be paid by the Initial Purchaser.

      (b) In connection with the offering, until the Initial Purchaser shall
have notified the Company of the completion of the resale of the Offered Notes,
neither the Company nor any of its affiliates has bid for or purchased or will
bid for or purchase, either alone or with one or more other persons, for any
account in which it or any of its affiliates has a beneficial interest any
Offered Notes; and neither it nor any of its affiliates will make bids or
purchases for the purpose of creating actual, or apparent, active trading in, or
of raising the price of, the Offered Notes.

      10. NOTICES. All communications hereunder will be in writing and, if sent
to the Initial Purchaser, will be mailed, delivered or sent by facsimile
transmission and confirmed to Morgan Stanley & Co. Incorporated, 1585 Broadway,
New York, NY 10036, Attention: Equipment Finance Group, facsimile number (212)
761-0786 and, if sent to the Company, will be mailed, delivered or sent by
facsimile transmission and confirmed to it at 1600 Smith Street, HQSEO, Houston,
TX 77002, Attention: Treasurer and General Counsel, facsimile number (713)
324-2447.

      11. SUCCESSORS. This Agreement will inure to the benefit of and be binding
upon the parties hereto and their respective successors and the controlling
persons referred to in Section 6 hereof, and no other person will have any right
or obligation hereunder.

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

      13. APPLICABLE LAW. THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK WITHOUT REGARD TO PRINCIPLES
OF CONFLICTS OF LAW.

                                       21
<PAGE>
      14. JURISDICTION. Each of the parties hereto agrees that any legal suit,
action or proceeding arising out of or relating to this Agreement or the
transactions contemplated hereby may be instituted in any U.S. federal or New
York State court in the Borough of Manhattan in The City of New York and each of
the parties hereto hereby irrevocably waives any objection which it may now or
hereafter have to the laying of venue of any such proceeding, and irrevocably
submits to the jurisdiction of such courts, with respect to actions brought
against it as defendant, in any suit, action or proceeding. Each of the parties
to this Agreement agrees that a final judgment in any such suit, action or
proceeding shall be conclusive and may be enforced in other jurisdictions by
suit on the judgment or in any other manner provided by law in accordance with
applicable law.

      15. LIBOR FOR INITIAL INTEREST PERIOD. The interest rate applicable for
the initial Interest Period under the Indenture shall be LIBOR, determined by
the Initial Purchaser as the rate for deposits in U.S. dollars for a period of
three months which appears on the Telerate Page 3750 as of 11:00 a.m., London
time, on May 7, 2003.

                                       22
<PAGE>
      If the foregoing is in accordance with the Initial Purchaser's
understanding of our agreement, kindly sign and return to the Company one of the
counterparts hereof, whereupon it will become a binding agreement between the
Initial Purchaser and the Company in accordance with its terms.

                             Very truly yours,

                             CONTINENTAL AIRLINES, INC.

                             By:
                                  ------------------------------------------
                                  Name: Gerald Laderman
                                  Title: Senior Vice President-Finance

The foregoing Purchase Agreement
is hereby confirmed and accepted
as of the date first above written:

MORGAN STANLEY & CO. INCORPORATED

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

                                       23<PAGE>

                                                                    EXHIBIT 4.01

THIS NOTE IS A GLOBAL NOTE WITHIN THE MEANING OF THE INDENTURE HEREINAFTER
REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITARY OR A NOMINEE THEREOF.
UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR NOTES IN CERTIFICATED
FORM, THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITORY TRUST
COMPANY, A NEW YORK CORPORATION ("DTC"), TO A NOMINEE OF DTC OR BY DTC OR ANY
SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR
DEPOSITARY. UNLESS THIS NOTE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF DTC
TO CITIGROUP GLOBAL MARKETS HOLDINGS INC. OR ITS AGENT FOR REGISTRATION OF
TRANSFER, EXCHANGE OR PAYMENT, AND ANY NOTE ISSUED IS REGISTERED IN THE NAME OF
CEDE & CO. OR IN SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF
DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS
REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER
USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS
THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

No. R-1                                           INITIAL PRINCIPAL AMOUNT
CUSIP 173073 81 8                                 REPRESENTED $45,000,000
                                                  representing 4,500,000 SEQUINS
                                                  ($10 per SEQUINS)

                     CITIGROUP GLOBAL MARKETS HOLDINGS INC.
                 7% Select EQUity Indexed NoteS(SM) Based Upon
 the Class A Special Common Stock of Comcast Corporation Due September 29, 2005

         Citigroup Global Markets Holdings Inc., a New York corporation
(hereinafter referred to as the "Company", which term includes any successor
corporation under the Indenture herein referred to), for value received and on
condition that this Note is not redeemed by the Company prior to September 29,
2005 (the "Stated Maturity Date"), hereby promises to pay to CEDE & CO., or its
registered assigns, the Maturity Payment (as defined below), on the Stated
Maturity Date. This Note will bear quarterly payments of interest, is not
subject to any sinking fund, is not subject to redemption at the option of the
holder thereof prior to the Stated Maturity Date, and is not subject to the
defeasance provisions of the Indenture.

         Payment of the Maturity Payment with respect to this Note shall be made
upon presentation and surrender of this Note at the corporate trust office of
the Trustee in the Borough of Manhattan, The City and State of New York, in the
Class A Special common stock of Comcast Corporation ("Comcast").

         This Note is one of the series of 7% Select EQUity Indexed NoteS(SM)
based upon the Class A Special common stock of Comcast Corporation due September
29, 2005 (the "SEQUINS").

<PAGE>

INTEREST

         The SEQUINS bear interest at the rate of 7% per annum. Interest will be
paid in cash quarterly on each 29th day of each March, June, September and
December commencing on December 29, 2003 (each such date, an "Interest Payment
Date").

         Interest will be payable to the persons in whose names the SEQUINS are
registered at the close of business on the fifth Business Day preceding each
Interest Payment Date. If an Interest Payment Date falls on a day that is not a
Business Day, the interest payment to be made on such Interest Payment Date will
be made on the next succeeding Business Day with the same force and effect as if
made on such Interest Payment Date, and no additional interest will accrue as a
result of such delayed payment. Interest will be computed on the basis of a
360-day year of twelve 30-day months.

         "Business Day" means any day that is not a Saturday, a Sunday or a day
on which the securities exchanges or banking institutions or trust companies in
the City of New York are authorized or obligated by law or executive order to
close.

PAYMENT AT MATURITY

         On the Stated Maturity Date, if the Company does not exercise its Call
Option (as described below) prior to or on such date, holders of the SEQUINS
will receive for each SEQUINS the final quarterly interest payment and the
Maturity Payment described below.

DETERMINATION OF THE MATURITY PAYMENT

         The Maturity Payment for each SEQUINS equals a number of shares of
Comcast Class A Special common stock equal to the Exchange Ratio. The Exchange
Ratio equals 0.33670.

         In lieu of any fractional share of Comcast Class A Special common stock
otherwise payable in respect of any SEQUINS, at maturity each holder of a
SEQUINS will receive an amount in cash equal to the value of such fractional
share. The number of full shares of Comcast Class A Special common stock, and
any cash in lieu of a fractional share, to be delivered at maturity to a holder
of a SEQUINS will be calculated based on the aggregate number of SEQUINS held by
such holder.

CALL OPTION

         The Company may exercise its option to call (its "Call Option") the
SEQUINS in whole, but not in part, on any Business Day beginning on September
30, 2004 through and including the Stated Maturity Date (such day being the
"Call Date"). The Company will provide at least 10 Business Days' notice (as
described below) before the Call Date.

         If the Company exercises its Call Option, holders of the SEQUINS will
receive for each SEQUINS a price in cash (the "Call Price") that, together with
all other payments made on the SEQUINS from the date hereof (the "Issue Date")
to and including the Call Date, will provide a yield to call of 13% per annum
(compounded annually). The Call Price will be calculated by

                                       2
<PAGE>

determining the amount that, when discounted from the Call Date to the Issue
Date by a discount factor based on an annual yield to call of 13% (calculated on
the basis of a 360-day year of twelve 30-day months, compounded annually) and
added to the present value of all interest payments made to and including the
Call Date discounted to the Issue Date by that same discount factor, will equal
the initial price of the SEQUINS. The present value of each interest payment on
the SEQUINS used to determine the Call Price will be calculated assuming each
payment is made on the calendar day scheduled for that payment. A delay in
payment may arise for reasons such as a scheduled Interest Payment Date falling
on a day that is not a Business Day and, as a result, the payment being delayed
until the next succeeding Business Day. Any such delay will not be taken into
account when calculating the Call Price. The Call Price will be rounded to the
fourth decimal place and will not include the amount of unpaid interest accrued
to and including the Call Date; however, on the Call Date holders of the SEQUINS
will receive the Call Price plus an amount equal to the accrued and unpaid
interest.

         So long as the SEQUINS are represented by this Note and are held on
behalf of DTC, notices relating to the Company's Call Option and all other
notices will be given by delivery to DTC, in which event such notice will be
deemed to have been given to holders of the SEQUINS on the seventh trading day
after the day on which such notice is delivered. If the SEQUINS are no longer
represented by this Note and are not held on behalf of DTC, notices relating to
the Company's Call Option and all other notices will be published in a leading
daily newspaper in the City of New York, which is expected to be The Wall Street
Journal.

DILUTION ADJUSTMENTS

         If Comcast, after the closing date of the offering of the SEQUINS,

         (1) pays a stock dividend or makes a distribution with respect to its
         Class A Special common stock in shares of the stock,

         (2) subdivides or splits the outstanding shares of its Class A Special
         common stock into a greater number of shares,

         (3) combines the outstanding shares of the Class A Special common stock
         into a smaller number of shares, or

         (4) issues by reclassification of shares of its Class A Special common
         stock any shares of other common stock of Comcast,

then, in each of these cases, the Exchange Ratio will be multiplied by a
dilution adjustment equal to a fraction, the numerator of which will be the
number of shares of Class A Special common stock outstanding immediately after
the event, plus, in the case of a reclassification referred to in (4) above, the
number of shares of such other common stock of Comcast, and the denominator of
which will be the number of shares of Class A Special common stock outstanding
immediately before the event.

                                       3

<PAGE>

         If Comcast, after the closing date, issues, or declares a record date
in respect of an issuance of, rights or warrants to all holders of its Class A
Special common stock entitling them to subscribe for or purchase shares of its
Class A Special common stock at a price per share less than the Then-Current
Market Price of the Class A Special common stock, other than rights to purchase
Class A Special common stock pursuant to a plan for the reinvestment of
dividends or interest, then, in each case, the Exchange Ratio will be multiplied
by a dilution adjustment equal to a fraction, the numerator of which will be the
number of shares of Class A Special common stock outstanding immediately before
the adjustment is effected, plus the number of additional shares of Class A
Special common stock offered for subscription or purchase pursuant to the rights
or warrants, and the denominator of which will be the number of shares of Class
A Special common stock outstanding immediately before the adjustment is effected
by reason of the issuance of the rights or warrants, plus the number of
additional shares of Class A Special common stock which the aggregate offering
price of the total number of shares of Class A Special common stock offered for
subscription or purchase pursuant to the rights or warrants would purchase at
the Then-Current Market Price of the Class A Special common stock, which will be
determined by multiplying the total number of shares so offered for subscription
or purchase by the exercise price of the rights or warrants and dividing the
product obtained by the Then-Current Market Price. To the extent that, after the
expiration of the rights or warrants, the shares of Class A Special common stock
offered thereby have not been delivered, the Exchange Ratio will be further
adjusted to equal the Exchange Ratio which would have been in effect had the
adjustment for the issuance of the rights or warrants been made upon the basis
of delivery of only the number of shares of Class A Special common stock
actually delivered.

         If Comcast, after the closing date, declares or pays a dividend or
makes a distribution to all holders of the Class A Special common stock of any
class of its capital stock, the capital stock of one or more of its
subsidiaries, evidences of its indebtedness or other non-cash assets, excluding
any dividends or distributions referred to in the above paragraph, or issues to
all holders of its Class A Special common stock rights or warrants to subscribe
for or purchase any of its or one or more of its subsidiaries' securities, other
than rights or warrants referred to in the above paragraph, then, in each of
these cases, the Exchange Ratio will be multiplied by a dilution adjustment
equal to a fraction, the numerator of which will be the Then-Current Market
Price of one share of the Class A Special common stock, and the denominator of
which will be the Then-Current Market Price of one share of the Class A Special
common stock, less the fair market value (as determined by a nationally
recognized independent investment banking firm retained for this purpose by the
Company, whose determination will be final) as of the time the adjustment is
effected of the portion of the capital stock, assets, evidences of indebtedness,
rights or warrants so distributed or issued applicable to one share of Class A
Special common stock.

         Notwithstanding the foregoing, in the event that, with respect to any
dividend or distribution to which the above paragraph would otherwise apply, the
denominator in the fraction referred to in the above formula is less than $1.00
or is a negative number, then the Company may, at its option, elect to have the
adjustment provided by the above paragraph not be made and in lieu of this
adjustment, the Maturity Payment will be deemed to be equal to the fair market
value of the capital stock, evidences of indebtedness, assets, rights or
warrants (determined, as of the date the dilution adjustment would otherwise be
effected as described below, by a nationally

                                       4

<PAGE>

recognized independent investment banking firm retained for this purpose by the
Company, whose determination will be final) so distributed or issued applicable
to one share of Comcast Class A Special common stock and each holder of the
SEQUINS will have the right to receive at maturity cash in an amount per SEQUINS
equal to the Exchange Ratio multiplied by such fair market value.

         If Comcast, after the closing date, declares a record date in respect
of a distribution of cash, other than any Permitted Dividends described below,
any cash distributed in consideration of fractional shares of Class A Special
common stock and any cash distributed in a Reorganization Event referred to
below, by dividend or otherwise, to all holders of its Class A Special common
stock, or makes an Excess Purchase Payment, then the Exchange Ratio will be
multiplied by a dilution adjustment equal to a fraction, the numerator of which
will be the Then-Current Market Price of the Class A Special common stock, and
the denominator of which will be the Then-Current Market Price of the Class A
Special common stock on the record date less the amount of the distribution
applicable to one share of Class A Special common stock which would not be a
Permitted Dividend, or, in the case of an Excess Purchase Payment, less the
aggregate amount of the Excess Purchase Payment for which adjustment is being
made at the time divided by the number of shares of Class A Special common stock
outstanding on the record date.

         For purposes of these adjustments:

         A "Permitted Dividend" is any quarterly cash dividend in respect of
Comcast Class A Special common stock, other than a quarterly cash dividend that
exceeds the immediately preceding quarterly cash dividend, and then only to the
extent that the per share amount of this dividend results in an annualized
dividend yield on the Class A Special common stock in excess of 10%.

         An "Excess Purchase Payment" is the excess, if any, of (x) the cash and
the value (as determined by a nationally recognized independent investment
banking firm retained for this purpose by the Company, whose determination will
be final) of all other consideration paid by Comcast with respect to one share
of Class A Special common stock acquired in a tender offer or exchange offer by
Comcast, over (y) the Then-Current Market Price of the Class A Special common
stock.

         Notwithstanding the foregoing, in the event that, with respect to any
dividend, distribution or Excess Purchase Payment to which the fifth paragraph
in this section would otherwise apply, the denominator in the fraction referred
to in the formula in that paragraph is less than $1.00 or is a negative number,
then the Company may, at its option, elect to have the adjustment provided by
the fifth paragraph in this section not be made and in lieu of this adjustment,
the Maturity Payment will be deemed to be equal to the sum of the amount of cash
and the fair market value of other consideration (determined, as of the date the
dilution adjustment would otherwise be effected as described below, by a
nationally recognized independent investment banking firm retained for this
purpose by the Company, whose determination will be final) so distributed or
applied to the acquisition of the Class A Special

                                       5

<PAGE>

common stock in the tender offer or exchange offer applicable to one share of
Comcast Class A Special common stock and each holder of the SEQUINS will have
the right to receive at maturity cash in an amount per SEQUINS equal to the
Exchange Ratio multiplied by such sum.

         Each dilution adjustment will be effected as follows:

         -        in the case of any dividend, distribution or issuance, at the
                  opening of business on the Business Day next following the
                  record date for determination of holders of Comcast Class A
                  Special common stock entitled to receive this dividend,
                  distribution or issuance or, if the announcement of this
                  dividend, distribution, or issuance is after this record date,
                  at the time this dividend, distribution or issuance was
                  announced by Comcast;

         -        in the case of any subdivision, split, combination or
                  reclassification, on the effective date of the transaction;

         -        in the case of any Excess Purchase Payment for which Comcast
                  announces, at or prior to the time it commences the relevant
                  share repurchase, the repurchase price per share for shares
                  proposed to be repurchased, on the date of the announcement;
                  and

         -        in the case of any other Excess Purchase Payment, on the date
                  that the holders of the repurchased shares become entitled to
                  payment in respect thereof.

         All dilution adjustments will be rounded upward or downward to the
nearest 1/10,000th or, if there is not a nearest 1/10,000th, to the next lower
1/10,000th. No adjustment in the Exchange Ratio will be required unless the
adjustment would require an increase or decrease of at least one percent
therein, provided, however, that any adjustments which by reason of this
sentence are not required to be made will be carried forward (on a percentage
basis) and taken into account in any subsequent adjustment. If any announcement
or declaration of a record date in respect of a dividend, distribution, issuance
or repurchase requiring an adjustment as described herein is subsequently
canceled by Comcast, or this dividend, distribution, issuance or repurchase
fails to receive requisite approvals or fails to occur for any other reason,
then, upon the cancellation, failure of approval or failure to occur, the
Exchange Ratio will be further adjusted to the Exchange Ratio which would then
have been in effect had adjustment for the event not been made. If any
Reorganization Event, as described below, occurs after the occurrence of one or
more events requiring an adjustment as described herein, the dilution
adjustments previously applied to the Exchange Ratio will not be rescinded but
will be applied to the new Exchange Ratio provided for below.

         The "Then-Current Market Price" of the Class A Special common stock,
for the purpose of applying any dilution adjustment, means the average Closing
Price per share of Class A Special common stock for the ten Trading Days
immediately before this adjustment is effected or, in the case of an adjustment
effected at the opening of business on the Business Day next following a record
date, immediately before the earlier of the date the adjustment is effected and

                                       6

<PAGE>

the related Ex-Date. For purposes of determining the Then-Current Market Price,
the determination of the Closing Price by the calculation agent in the event of
a Market Disruption Event, as described in the definition of Closing Price, may
be deferred by the calculation agent for up to five consecutive Trading Days on
which a Market Disruption Event is occurring.

         The "Closing Price" of Comcast Class A Special common stock (or any
other security for which a Closing Price must be determined) on any date of
determination will be (1) if the Class A Special common stock is listed on a
national securities exchange on that date of determination, the closing sale
price or, if no closing sale price is reported, the last reported sale price on
that date on the principal U.S. exchange on which the Class A Special common
stock is listed or admitted to trading, (2) if the Class A Special common stock
is not listed on a national securities exchange on that date of determination,
or if the closing sale price or last reported sale price is not obtainable (even
if the Class A Special common stock is listed or admitted to trading on such
exchange), and the Class A Special common stock is quoted on the Nasdaq National
Market, the closing sale price or, if no closing sale price is reported, the
last reported sale price on that date as reported on the Nasdaq, and (3) if the
Class A Special common stock is not quoted on the Nasdaq on that date of
determination or, if the closing sale price or last reported sale price is not
obtainable (even if the Class A Special common stock is quoted on the Nasdaq),
the last quoted bid price for the Class A Special common stock in the
over-the-counter market on that date as reported by the OTC Bulletin Board, the
National Quotation Bureau or a similar organization. If no closing sale price or
last reported sale price is available pursuant to clauses (1), (2) or (3) of the
preceding sentence or if there is a Market Disruption Event, the Closing Price
on any date of determination, unless deferred by the calculation agent as
described in the preceding paragraph, will be the arithmetic mean, as determined
by the calculation agent, of the bid prices of the common stock obtained from as
many dealers in such stock (which may include the Company or any of its other
subsidiaries or affiliates), but not exceeding three such dealers, as will make
such bid prices available to the calculation agent. A security "quoted on the
Nasdaq National Market" will include a security included for listing or
quotation in any successor to such system and the term "OTC Bulletin Board" will
include any successor to such service.

         A "Trading Day" means a day, as determined by the calculation agent, on
which trading is generally conducted (or was scheduled to have been generally
conducted, but for the occurrence of a Market Disruption Event) on the New York
Stock Exchange, the American Stock Exchange, the Nasdaq National Market, the
Chicago Mercantile Exchange and the Chicago Board Options Exchange, and in the
over-the-counter market for equity securities in the United States.

         The "Ex-Date" with respect to any dividend, distribution or issuance is
the first date on which the shares of the Class A Special common stock trade in
the regular way on their principal market without the right to receive this
dividend, distribution or issuance.

         A "Market Disruption Event" means the occurrence or existence of any
suspension of or limitation imposed on trading (by reason of movements in price
exceeding limits permitted by any exchange or market or otherwise) of, or the
unavailability, through a recognized system of public dissemination of
transaction information, of accurate price, volume or related information

                                       7

<PAGE>

in respect of, (1) the shares of Comcast Class A Special common stock on any
exchange or market, or (2) any options contracts or futures contracts relating
to the shares of Comcast Class A Special common stock, or any options on such
futures contracts, on any exchange or market if, in each case, in the
determination of the calculation agent, any such suspension, limitation or
unavailability is material.

         In the event of any of the following "Reorganization Events":

         -        any consolidation or merger of Comcast, or any surviving
                  entity or subsequent surviving entity of Comcast, with or into
                  another entity, other than a merger or consolidation in which
                  Comcast is the continuing corporation and in which the Class A
                  Special common stock outstanding immediately before the merger
                  or consolidation is not exchanged for cash, securities or
                  other property of Comcast or another issuer;

         -        any sale, transfer, lease or conveyance to another corporation
                  of the property of Comcast or any successor as an entirety or
                  substantially as an entirety;

         -        any statutory exchange of securities of Comcast or any
                  successor of Comcast with another issuer, other than in
                  connection with a merger or acquisition; or

         -        any liquidation, dissolution or winding up of Comcast or any
                  successor of Comcast,

each holder of the SEQUINS will have the right to receive a Maturity Payment per
SEQUINS of (i) cash in an amount equal to the Exchange Ratio multiplied by the
sum of clauses (1) and (2) in the definition of "Transaction Value" below and
(ii) the number of Marketable Securities received for each share of stock in the
Reorganization Event multiplied by the Exchange Ratio.

         The "Transaction Value" will be the sum of:

         (1)      for any cash received in a Reorganization Event, the amount of
                  cash received per share of Class A Special common stock,

         (2)      for any property other than cash or Marketable Securities
                  received in a Reorganization Event, an amount equal to the
                  market value on the date the Reorganization Event is
                  consummated of that property received per share of Class A
                  Special common stock, as determined by a nationally recognized
                  independent investment banking firm retained for this purpose
                  by the Company, whose determination will be final, and

         (3)      for any Marketable Securities received in a Reorganization
                  Event, an amount equal to the Closing Price per share of these
                  Marketable Securities on the applicable Trading Day multiplied
                  by the number of these Marketable Securities received for each
                  share of Class A Special common stock.

                                       8

<PAGE>

         "Marketable Securities" are any perpetual equity securities or debt
securities with a stated maturity after the maturity date, in each case that are
listed on a U.S. national securities exchange or reported by the Nasdaq Stock
Market. The number of shares of any equity securities constituting Marketable
Securities included in the calculation of Transaction Value pursuant to clause
(3) above will be adjusted if any event occurs with respect to the Marketable
Securities or the issuer of the Marketable Securities between the time of the
Reorganization Event and maturity that would have required an adjustment as
described above, had it occurred with respect to Comcast Class A Special common
stock or Comcast. Adjustment for these subsequent events will be as nearly
equivalent as practicable to the adjustments described above.

GENERAL

         This Note is one of a duly authorized issue of debt securities of the
Company (the "Debt Securities"), issued and to be issued in one or more series
under a Senior Debt Indenture, dated as of October 27, 1993, as supplemented by
a First Supplemental Indenture, dated as of November 28, 1997, a Second
Supplemental Indenture, dated as of July 1, 1999, and as further supplemented
from time to time (the "Indenture"), between the Company and The Bank of New
York, as Trustee (the "Trustee", which term includes any successor trustee under
the Indenture), to which Indenture reference is hereby made for a statement of
the respective rights, limitations of rights, duties and immunities thereunder
of the Company, the Trustee and the holders of the SEQUINS, and the terms upon
which the SEQUINS are, and are to be, authenticated and delivered.

         If an Event of Default with respect to the SEQUINS shall have occurred
and be continuing, the principal of the SEQUINS may be declared due and payable
in the manner and with the effect provided in the Indenture. In such case, the
amount declared due and payable upon any acceleration permitted by the Indenture
will be determined by the calculation agent and will be equal to, with respect
to this Note, the Maturity Payment calculated as though the Stated Maturity Date
of this Note were the date of early repayment. In case of default at Maturity of
this Note, this Note shall bear interest, payable upon demand of the beneficial
owners of this Note in accordance with the terms of the SEQUINS, from and after
Maturity through the date when payment of such amount has been made or duly
provided for, at the rate of 2% per annum on the unpaid amount (or the cash
equivalent of such unpaid amount) due.

         The Indenture permits, with certain exceptions as therein provided, the
amendment thereof and the modification of the rights and obligations of the
Company and the rights of the holders of the Debt Securities of each series to
be affected under the Indenture at any time by the Company and a majority in
aggregate principal amount of the Debt Securities at the time Outstanding of
each series affected thereby. The Indenture also contains provisions permitting
the holders of specified percentages in aggregate principal amount of the Debt
Securities of any series at the time Outstanding, on behalf of the holders of
all Debt Securities of such series, to waive compliance by the Company with
certain provisions of the Indenture and certain past defaults under the
Indenture and their consequences. Any such consent or waiver by the holder of
this Note shall be conclusive and binding upon such holder and upon all future
holders of this

                                       9

<PAGE>

Note and of any Note issued upon the registration of transfer hereof or in
exchange herefor or in lieu hereof, whether or not notation of such consent or
waiver is made upon this Note.

         The holder of this Note may not enforce such holder's rights pursuant
to the Indenture or the SEQUINS except as provided in the Indenture. No
reference herein to the Indenture and no provision of this Note or of the
Indenture shall alter or impair the obligation of the Company to pay the
Maturity Payment with respect to this Note, and to pay any interest on any
overdue amount thereof at the time, place and rate, and in the coin or currency,
herein prescribed.

         All terms used in this Note which are defined in the Indenture but not
in this Note shall have the meanings assigned to them in the Indenture.

         Unless the certificate of authentication hereon has been executed by
the Trustee by manual signature, this Note shall not be entitled to any benefit
under the Indenture or be valid or obligatory for any purposes.

                                       10

<PAGE>

         IN WITNESS WHEREOF, the Company has caused this instrument to be duly
executed under its corporate seal.

                                        CITIGROUP GLOBAL MARKETS HOLDINGS INC.

                                        By: /s/ Mark I. Kleinman
                                            ------------------------------------
                                            Name:  Mark I. Kleinman
                                            Title: Executive Vice President
                                                   and Treasurer

Corporate Seal
Attest:

By: /s/ Douglas C. Turnbull
    --------------------------------------
    Name:  Douglas C. Turnbull
    Title: Assistant Secretary

Dated: September 29, 2003

CERTIFICATE OF AUTHENTICATION
   This is one of the Notes referred to in
   the within-mentioned Indenture.

The Bank of New York,
as Trustee

By: /s/ Geovanni Barris
    --------------------------------------
    Authorized Signatory

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